Luigi Rizzo commitolta az új ipfw kódját a FreeBSD-stable-be. Rizzo azt ígéri, hogy az új ipfw kód legalább kétszer gyorsabb mint az elődje. Ezen kívül nem kell aggódnunk, hogy újra meg kell tanulnunk a tűzfal kódot buherálni, mert a ruleset szintakszis visszafele kompatibilis.
Luigi bejelentése:Date: Tue, 23 Jul 2002 20:21:24 -0700 (PDT)
From: Luigi Rizzo
Subject: cvs commit: src/sys/netinet ip_fw2.c ip_fw2.h src/sys/conf files options src/sbin/ipfw Makefile ipfw2.c src/lib/libalias Makefile alias_db.c
To: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG
luigi 2002/07/23 20:21:24 PDT
Modified files: (Branch: RELENG_4)
sys/conf options files
sbin/ipfw Makefile
lib/libalias Makefile alias_db.c
Added files: (Branch: RELENG_4)
sys/netinet ip_fw2.h ip_fw2.c
sbin/ipfw ipfw2.c
Log:
Bring ipfw2 into the -stable tree. This will give more people a chance to test it, and hopefully accelerate the transition from the old to the new ipfw code.
NOTE: THIS COMMIT WILL NOT CHANGE THE FIREWALL YOU USE, NOR A SINGLE BIT IN YOUR KERNEL AND BINARIES. YOU WILL KEEP USING YOUR OLD "ipfw" UNLESS YOU:
+ add "options IPFW2" (undo*****ented) to your kernel config file;
+ compile and install sbin/ipfw and lib/libalias with
make -DIPFW2
in other words, you must really want it.
On the other hand, i believe you do really want to use this new code. In addition to being twice as fast in processing individual rules, you can use more powerful match patterns such as
...ip from 1.2.3.0/24{50,6,27,158} to ...
... ip from { 1.2.3.4/26 or 5.6.7.8/22 } to ...
... ip from any 5-7,9-66,1020-3000,4000-5000 to ...
i.e. match sparse sets of IP addresses in constant time; use "or" connectives between match patterns; have multiple port ranges; etc. which I believe will dramatically reduce your ruleset size.
As an additional bonus, "keep-state" rules will now send keepalives when the rule is about to expire, so you will not have your remote login sessions die while you are idle.
The syntax is backward compatible with the old ipfw.
A manual page do*****enting the extensions has yet to be completed.
Revision Changes Path
1.13.2.5 +4 -1 src/lib/libalias/Makefile
1.21.2.14 +151 -36 src/lib/libalias/alias_db.c
1.6.6.3 +5 -1 src/sbin/ipfw/Makefile
1.4.2.1 +3166 -0 src/sbin/ipfw/ipfw2.c (new)
1.340.2.107 +1 -0 src/sys/conf/files
1.191.2.41 +1 -0 src/sys/conf/options
1.6.2.1 +2622 -0 src/sys/netinet/ip_fw2.c (new)
1.1.2.1 +404 -0 src/sys/netinet/ip_fw2.h (new)
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