1
0
mirror of https://git.FreeBSD.org/src.git synced 2024-12-05 09:14:03 +00:00
Commit Graph

115 Commits

Author SHA1 Message Date
Brian Feldman
1efcedf596 Make the "uid" and "gid" code better. Now it can detect invalid user
names/numbers.

Reviewed by:	chris
1999-09-03 18:18:46 +00:00
Peter Wemm
7f3dea244c $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
Brian Feldman
32e7924603 To christen the brand new security category for syslog, we get IPFW
using syslog(3) (log(9)) for its various purposes! This long-awaited
change also includes such nice things as:
	* macros expanding into _two_ comma-delimited arguments!
	* snprintf!
	* more snprintf!
	* linting and criticism by more people than you can shake a stick at!
	* a slightly more uniform message style than before!
	 and last but not least
	* no less than 5 rewrites!

Reviewed by:	committers
1999-08-21 18:35:55 +00:00
Luigi Rizzo
e2bd328224 Whoops, forgot one line in previous patch. 1999-08-12 05:32:11 +00:00
Luigi Rizzo
f0706ad422 Userland and manual page changes for probabilistic rule match.
Because the kernel change was done in a backward-compatible way,
you don't need to recompile ipfw if you don't want to use the new
feature.
1999-08-11 15:36:13 +00:00
Brian Feldman
0b6c1a832d Make ipfw's logging more dynamic. Now, log will use the default limit
_or_ you may specify "log logamount number" to set logging specifically
the rule.
   In addition, "ipfw resetlog" has been added, which will reset the
logging counters on any/all rule(s). ipfw resetlog does not affect
the packet/byte counters (as ipfw reset does), and is the only "set"
command that can be run at securelevel >= 3.
   This should address complaints about not being able to set logging
amounts, not being able to restart logging at a high securelevel,
and not being able to just reset logging without resetting all of the
counters in a rule.
1999-08-01 16:57:24 +00:00
Brian Feldman
7a2aab80b0 This is the much-awaited cleaned up version of IPFW [ug]id support.
All relevant changes have been made (including ipfw.8).
1999-06-19 18:43:33 +00:00
Ruslan Ermilov
689b0bd1d4 Document the usage of escape character in a service name.
PR:		7101
Reminded by:	jhs
1999-06-15 12:56:38 +00:00
Ruslan Ermilov
0a81860b0b Workaround the problem that the first (and only first) port name
can't have a dash character (it is treated as a ``range'' operator).
One could now use such a name by escaping the ``-'' characters.
For example:

# ipfw add 1 count tcp from any to any "ms\-sql\-s"
# ipfw add 2 count tcp from any ftp\\-data-ftp to any

PR:		7101
1999-06-11 09:43:53 +00:00
Ruslan Ermilov
43866c3e76 Fix the parsing of ip addresses on a command line.
PR:		5047
Reviewed by:	des
Test case:	ipfw add allow ip from 127.1 to any
1999-06-04 11:20:59 +00:00
Ruslan Ermilov
06e70c77bb Spelling corrections for dummynet.
Reviewed by:	des,luigi
1999-06-02 05:59:48 +00:00
Kris Kennaway
39aa78dd44 Manpage cleanup, move $Id$ to #ifndef lint, remove unused includes,
grammatical fixes.

Submitted by:	Philippe Charnier
1999-05-29 08:12:38 +00:00
Luigi Rizzo
e142fadecb close pr 10889:
+ add a missing call to dn_rule_delete() when flushing firewall
  rules, thus preventing possible panics due to dangling pointers
  (this was already done for single rule deletes).
+ improve "usage" output in ipfw(8)
+ add a few checks to ipfw pipe parameters and make it a bit more
  tolerant of common mistakes (such as specifying kbit instead of Kbit)

PR: kern/10889
Submitted by: Ruslan Ermilov
1999-05-24 10:01:22 +00:00
Guy Helmer
dc90479cca Add ICMP types to list of information about each packet. 1999-04-29 19:14:17 +00:00
Guy Helmer
b67579bd36 Explain when packets are tesed by the firewall rules and what attributes
of packets can be tested.

PR:		docs/7437
1999-04-28 02:49:29 +00:00
Guy Helmer
e5a49961b1 Convert LKM/modload to KLD/kldload. Add ref to kldload(8).
Submitted by:	Nathan Ahlstrom <nrahlstr@winternet.com>
1999-04-08 13:56:25 +00:00
Archie Cobbs
14112159be Fix bug where 'ipfw list' would choke if there were a large number of rules. 1999-01-22 01:46:32 +00:00
Archie Cobbs
6f206f2ef2 Fix misleading wording in ipfw(8) man page.
PR: docs/9603
1999-01-21 19:51:04 +00:00
Luigi Rizzo
d120b1c1fc Remove coredump when running "ipfw pipe" without more arguments.
PR: 8937
1998-12-27 11:23:05 +00:00
Guy Helmer
b46dfa405c Mention affect of securelevel 3 and higher on attempts to change filter lists.
Prompted by:	PR docs/7785
1998-12-16 17:10:03 +00:00
Luigi Rizzo
b13ebaaa5c ipfw changes for dummynet. manpages still missing 1998-12-14 18:43:03 +00:00
Archie Cobbs
b31a38612b Disallow ipfw "tee" rules until it is actually implemented.
PR:		bin/8471
1998-12-07 05:54:37 +00:00
Joerg Wunsch
aa045fa499 Preprocessor support for `ipfw [-q] ... file'.
This allows for more flexible ipfw configuration files using
`variables' to describe frequently used items in the file, like the
local IP address(es), interface names etc.  Both m4 and cpp are useful
and supported; with m4 being a little more unusual to the common C
programmer, things like automatic rule numbering can be achieved
fairly easy.

While i was at it, i've also untangled some of the ugly style inside
main(), and fixed a bug or two (like not being able to use blank lines
when running with -q).

A typical call with preprocessor invocation looks like

	ipfw -p m4 -Dhostname=$(hostname) /etc/fwrules

Someone should probably add support for this feature to /etc/rc.firewall.
1998-11-23 10:54:28 +00:00
Alexander Langer
abe7f210b5 The flags type was recently changed from u_short to u_int, breaking
icmptypes.

PR:		8067
Submitted by:	Jonathan Hanna <jh@cr1003333-a.crdva1.bc.wave.home.com>

While I'm here, staticize functions.
1998-09-28 22:56:37 +00:00
Peter Hawkins
62cf03cd85 PR: 7475
Added support for -q (suppress output) when firewall rules are taken from a
file. Solves PR 7475
1998-08-04 14:41:37 +00:00
Julian Elischer
f9e354df42 Support for IPFW based transparent forwarding.
Any packet that can be matched by a ipfw rule can be redirected
transparently to another port or machine. Redirection to another port
mostly makes sense with tcp, where a session can be set up
between a proxy and an unsuspecting client. Redirection to another machine
requires that the other machine also be expecting to receive the forwarded
packets, as their headers will not have been modified.

/sbin/ipfw must be recompiled!!!

Reviewed by:	Peter Wemm <peter@freebsd.org>
Submitted by: Chrisy Luke <chrisy@flix.net>
1998-07-06 03:20:19 +00:00
Daniel O'Callaghan
dcf2c48fc9 Reminded by: Alex Nash
Bring man page up to date with -q flag behaviour.
1998-05-19 12:50:35 +00:00
Masafumi Max NAKANE
432a1104b6 Typo fix. 1998-05-19 03:10:14 +00:00
Daniel O'Callaghan
0eaa45335d PR: 6641
Submitted by:	Andre Albsmeier <andre.albsmeier@mchp.siemens.de>
Make -q work for zeroing a specific rule.
1998-05-15 12:38:07 +00:00
Poul-Henning Kamp
4419bba9fb When ipfw reads its rules from an input file, the optind variable is
not reinitialized to 1 after calling getopt. This results in parsing
errors on all but the first rule. An added patch also allows '#'
comments at the end of a line.

PR:		6379
Reviewed by:	phk
Submitted by:	Neal Fachan <kneel@ishiboo.com>
1998-04-22 06:20:20 +00:00
Martin Cracauer
d6b37778e9 (evil) hackers -> crackers 1998-04-08 12:00:48 +00:00
Philippe Charnier
68085a0ef1 .Sh AUTHOR -> .Sh AUTHORS. Use .An/.Aq. 1998-03-19 07:46:04 +00:00
Alexander Langer
585054bfa6 Get the arguments to show_usage right (like the MFC'ed code in -stable).
Submitted by:	bde
1998-03-13 02:31:21 +00:00
Alexander Langer
ce78a1f6dd Alter ipfw's behavior with respect to fragmented packets when the packet
offset is non-zero:

  - Do not match fragmented packets if the rule specifies a port or
    TCP flags
  - Match fragmented packets if the rule does not specify a port and
    TCP flags

Since ipfw cannot examine port numbers or TCP flags for such packets,
it is now illegal to specify the 'frag' option with either ports or
tcpflags.  Both kernel and ipfw userland utility will reject rules
containing a combination of these options.

BEWARE: packets that were previously passed may now be rejected, and
vice versa.

Reviewed by:	Archie Cobbs <archie@whistle.com>
1998-02-12 00:57:06 +00:00
Alexander Langer
1c910ddbf9 Bump up packet and byte counters to 64-bit unsigned ints. As a
consequence, ipfw's list command now adjusts its output at runtime
based on the largest packet/byte counter values.

NOTE:
  o The ipfw struct has changed requiring a recompile of both kernel
    and userland ipfw utility.

  o This probably should not be brought into 2.2.

PR:		3738
1998-01-08 03:03:54 +00:00
Alexander Langer
00bbf86dd5 Format mismatch in error message.
Submitted by:	bde
1998-01-08 00:27:31 +00:00
Alexander Langer
19b7e28d58 Support listing/showing specific rules supplied on the command line.
Use error codes from <sysexits.h>.
1998-01-07 02:23:04 +00:00
Alexander Langer
016d30080f Display a better error message and use a non-zero exit code when
zero/delete operations fail.

PR:		4231
Reviewed by:	Archie Cobbs <archie@whistle.com>
1998-01-06 00:11:57 +00:00
Alexander Langer
33d07164d6 Put the return value of getopt into an int, not a char. 1997-12-26 03:24:26 +00:00
Julian Elischer
c7a0bf0440 Allow ipfw to accept comments and blank lines.
This makes ipfw config files a LOT more readable.
1997-12-05 02:43:26 +00:00
Wolfram Schneider
bf5cbf3551 Sort cross refereces in section SEE ALSO. 1997-09-29 19:11:55 +00:00
Peter Wemm
ff486369c7 Mention the IPFIREWALL_DEFAULT_TO_ACCEPT option and it's effect on
rule 65535
1997-09-10 04:02:37 +00:00
Peter Wemm
875a6115c1 Fix typo (65434 -> 65534) 1997-09-10 03:52:50 +00:00
Daniel O'Callaghan
39f5ba2def Bring comment on '-a' flag in line with reality. 1997-08-21 07:30:08 +00:00
Alexander Langer
750f6aad7b Support interface names up to 15 characters in length. In order to
accommodate the expanded name, the ICMP types bitmap has been
reduced from 256 bits to 32.

A recompile of kernel and user level ipfw is required.

To be merged into 2.2 after a brief period in -current.

PR:		bin/4209
Reviewed by:	Archie Cobbs <archie@whistle.com>
1997-08-08 14:36:29 +00:00
Brian Somers
4e1bdb51a7 Allow service names as the divert/tee arg. 1997-07-25 03:13:46 +00:00
Julian Elischer
135a88d805 Allow ipfw to look up service names from /etc/services (or NIS if turned on)
note.. this would be dangerous if your ipfw was blocking NIS access :)

Submitted by: archie@whistle.com (Archie Cobbs)
1997-06-23 22:32:13 +00:00
Philippe Charnier
b2d4098533 Remove __progname. Cosmetic in usage string. 1997-06-13 06:27:12 +00:00
Julian Elischer
e4676ba603 Submitted by: Whistle Communications (archie Cobbs)
these are quite extensive additions to the ipfw code.
they include a change to the API because the old method was
broken, but the user view is kept the same.

The new code allows a particular match to skip forward to a particular
line number, so that blocks of rules can be
used without checking all the intervening rules.
There are also many more ways of rejecting
connections especially TCP related, and
many many more ...

see the man page for a complete description.
1997-06-02 05:02:37 +00:00
Masafumi Max NAKANE
20aaa0e700 Typo.
PR:		3600
Submitted by:	Josh Gilliam <soil@quick.net>
1997-05-15 09:00:39 +00:00