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* Bring rc.firewall{,6} more in line with the word and spirit ofcjc2002-02-211-7/+17
| | | | | | | | | | | | | | | | rc.conf(5) and the files' inline documentation. - Add the "closed"-type, documented in both places, but which did not exist in the code. - When provided a ruleset, the system should not make any assumptions about the sites's policy and should add no rules of its own. - Make the "UNKNOWN" (documented in-line) actual work as advertised, load no rules. Prodded by: Igor M Podlesny <poige@morning.ru> MFC after: 1 week
* Remove a stale entry related to passing ARP with bridging and ipfw.luigi2001-12-271-2/+0
| | | | | | | | | This feature has been removed since 4.1 times and it is only a source of confusion. Same needs to be done on -stable. MFC after: 1 day
* Sync the code that sucks in rc.conf and friends with what's indd2001-08-141-5/+7
| | | | | | | | | | | | rc.firewall6. Specifically, don't do anything if [ -z ${source_rc_confs_defined} ]. Not doing this leads to a problem with dependencies: chkdepend will set, e.g., portmap_enable to YES if some service that needs portmap is enabled, but rc.network sources rc.firewall, which used to source defaults/rc.conf unconditionally, which would result in portmap_enable being set back to NO. PR: 29631 Submitted by: OGAWA Takaya <t-ogawa@triaez.kaisei.org>
* style nitobrien2001-03-061-1/+1
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* Also deny 127.0.0.0/8 going out.obrien2001-03-051-1/+2
| | | | Submitted by: grimes
* Fix references to Chapman & Zwicky and Cheswick & Bellowin.des2001-02-251-3/+5
| | | | | PR: 24652 Submitted by: jjreynold@home.com
* Fix some glaring insecurities in the prototype firewall configurations.nsayer2001-02-201-8/+4
| | | | | | | | pass udp from any 53 to ${oip} allows an attacker to access ANY local port by simply binding his local side to 53. The state keeping mechanism is the correct way to allow DNS replies to go back to their source.
* Add copyright notices. Other systems have been barrowing our /etc filesobrien2000-10-081-2/+29
| | | | w/o giving any credit.
* Only install `divert natd' rule for predefined firewall types,ru2000-08-301-3/+1
| | | | | | | not when ${firewall_type} is set to a filename, as we know nothing about user's script specifics. Reported by: Bernhard Valenti <bernhard.valenti@gmx.net>
* Make natd(8) "compatible" with firewall_type="simple".ru2000-08-041-17/+46
| | | | PR: conf/13769, conf/20197
* Update rev 1.29 -- 'draft-manning-dsua' is now in its 3rd version.obrien2000-07-301-1/+3
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* Add an explicit rule number to natd so you do not end up with twops2000-05-081-1/+1
| | | | | | rule 100's. Submitted by: Jan Koum <jkb@yahoo-inc.com>
* Add to defaults/rc.conf a new function source_rc_confs which rcsheldonh2000-04-271-0/+1
| | | | | | | | | | | | | | | | | scripts may use to source safely overrides in ${rc_conf_files} files. This protects users who insist on the bad practice of copying /etc/defaults/rc.conf to /etc/rc.conf from a recursive loop that exhausts available file descriptors. Several people have expressed interest in breaking this function out into its own shell script. Anyone who wants to embark on such an undertaking would do well to study the attributed PR. PR: 17595 Reported by: adrian Submitted by: Doug Barton <Doug@gorean.org>
* Back out the hook to execute the file ${firewall_type}. The intendedbsd2000-04-271-3/+1
| | | | | | | | | | purpose of the hook was to provide the ability for a shell program to instantiate the firewall rules instead of forcing them to be statically coded. This functionality was already present through the use of ${firewall_script}, and I see no need to keep the ${firewall_type} hook around. Reminded by: Dag-Erling Smorgrav <des@freebsd.org>
* Allow the firewall rules to be established by a shell script insteadbsd2000-04-161-1/+3
| | | | | | | of forcing them to be an 'ipfw' rules file. This allows one to determine interface addresses dynamically, etc. The rule is if the file referenced by ${firewall_type} is executable, it is sourced, but if it is just readable, it is used as input to 'ipfw' like before.
* Add a firewall_flags option that is used when ipfw processes a file. It allowspaul2000-02-061-1/+1
| | | | | | | you to run a preprocessor, such as m4, so that you can use macros in your rules file. Approved by: jkh
* Update this with the additional nets recomended by readingrgrimes2000-01-281-14/+26
| | | | | | | | | | | draft-manning-dsua-01.txt. Stop using public addresses as samples and use the recommended 192.0.2.0/24 netblock that has specifically been set aside for documentation purposes. Reviewed by: readers of freebsd-security did not respond to a request for review
* Minor whitespace fix.obrien1999-12-041-2/+1
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* Pass IP fragments with non-zero offset. The semantics of matchingru1999-11-041-0/+6
| | | | | | IP fragments has been changed in src/sys/netinet/ip_fw.c,v 1.78. Reminded by: "Ronald F. Guilmette" <rfg@monkeys.com>
* Add commented entry to the lo0 section inviting bridge users tonsayer1999-10-241-0/+2
| | | | enable ARP on filtering bridges.
* Allow for incoming DNS UDP queries.ru1999-10-201-0/+2
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* Fix a typo in a comment.mpp1999-09-301-1/+1
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* Apply a consistent style to most of the etc scripts. Particularly, usesheldonh1999-09-131-115/+138
| | | | | | | | | case instead of test where appropriate, since case allows case is a sh builtin and (as a side-effect) allows case-insensitivity. Changes discussed on freebsd-hackers. Submitted by: Doug Barton <Doug@gorean.org>
* $Id$ -> $FreeBSD$peter1999-08-271-1/+1
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* Style clean-up:sheldonh1999-08-251-39/+39
| | | | | | | | | | | | | | | | * All variables are now embraced: ${foo} * All comparisons against some value now take the form: [ "${foo}" ? "value" ] where ? is a comparison operator * All empty string tests now take the form: [ -z "${foo}" ] * All non-empty string tests now take the form: [ -n "${foo}" ] Submitted by: jkh
* Use /etc/defaults/rc.conf everywhere, falling back to /etc/rc.confjkh1999-02-101-2/+5
| | | | as necessary (for half-assed upgrades).
* Strengthen the rules governing the 127.0.0.0/8 subnet. The previous rulesalex1998-04-251-3/+3
| | | | | | | | | | allowed external hosts to send packets to the 127.0.0.0/8 subnet on the firewall host. Renumber the lo0 rules to guarantee they appear first. PR: 6406 Submitted by: Archie Cobbs <archie@whistle.com>
* Add natd support.brian1998-04-181-1/+10
| | | | | PR: 6339 Submitted by: cdillon@wolves.k12.mo.us
* Better RFC1918 network protectionphk1998-04-151-1/+4
| | | | | | PR: 6278 Reviewed by: phk Submitted by: Ruslan Ermilov <ru@ucb.crimea.ua>
* get default firewall type from rc.confadam1998-02-101-1/+5
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* MF22 - make firewall_type a little more robustdanny1997-10-211-9/+6
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* Fix some problems in the rules file loading and need for modload detection.danny1997-09-181-2/+2
| | | | Found by: "James E. Housley" <housley@pr-comm.com>
* Reviewed by: msmith, alexdanny1997-09-111-44/+60
| | | | Cosmetic changes to the loading of firewall rules and lkm.
* Add inetd_flags and way of passing ipfw a configuration filejkh1997-05-051-4/+9
| | | | | | | | | (if firewall = "somefilename"). Fix typo fixes and URLs which were accidently nuked out of this file (submitted by: soil@quick.net via PR#3501). Submitted by: "Danny J. Zerkel" <dzerkel@phofarm.com>
* Update the etc world from RELENG_2_2 which is now more up-to-datejkh1997-05-031-5/+3
| | | | | | (gotta get myself -current again, this is a drag). Also-fixes-problems-noted-by: Wolfgang Helbig & Joerg Wunsch
* Typo police.alex1997-04-271-3/+5
| | | | | Added links to O'Reilly & Associates and Addison-Wesley's web sites to accompany the book recommendations.
* Bring in rc file changes from -current.jkh1997-04-271-7/+4
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* Revert $FreeBSD$ to $Id$peter1997-02-231-1/+1
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* Make the long-awaited change from $Id$ to $FreeBSD$jkh1997-01-141-1/+1
| | | | | | | | This will make a number of things easier in the future, as well as (finally!) avoiding the Id-smashing problem which has plagued developers for so long. Boy, I'm glad we're not using sup anymore. This update would have been insane otherwise.
* don't ask for confirmationadam1996-09-051-2/+2
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* space typo, the shell don't like name=<space>valuewosch1996-08-191-2/+2
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* Remove root dotfiles which did more harm than good.jkh1996-08-141-19/+31
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* Flush out the rules before adding entries. This prevents duplicatealex1996-06-221-1/+5
| | | | | rules from appearing when switching back and forth from single to multi-user modes.
* Add another good book to the required reading.phk1996-04-121-3/+11
| | | | | | | make a couple of rules more sensible. Reviewed by: phk Submitted by: jmb
* Add skeleton firewall setup(s). Comments very welcome.phk1996-04-031-0/+133
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