~mdw / firewall / blame
| Commit | Line | Data |
|---|---|---|
| bfdc045d MW |
1 | ### -*-m4-*- |
| 2 | ### | |
| 3 | ### Main packet filtering | |
| 4 | ### | |
| 5 | ### (c) 2008 Mark Wooding | |
| 6 | ### | |
| 7 | ||
| 8 | ###----- Licensing notice --------------------------------------------------- | |
| 9 | ### | |
| 10 | ### This program is free software; you can redistribute it and/or modify | |
| 11 | ### it under the terms of the GNU General Public License as published by | |
| 12 | ### the Free Software Foundation; either version 2 of the License, or | |
| 13 | ### (at your option) any later version. | |
| 14 | ### | |
| 15 | ### This program is distributed in the hope that it will be useful, | |
| 16 | ### but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 17 | ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 18 | ### GNU General Public License for more details. | |
| 19 | ### | |
| 20 | ### You should have received a copy of the GNU General Public License | |
| 21 | ### along with this program; if not, write to the Free Software Foundation, | |
| 22 | ### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
| 23 | ||
| 24 | m4_divert(60)m4_dnl | |
| 25 | ###-------------------------------------------------------------------------- | |
| 26 | ### Main packet filtering. | |
| 27 | ||
| 28 | ## Incoming packets from untrusted sources need special inspection. | |
| 29 | clearchain inbound | |
| 30 | run iptables -A INPUT -m mark --mark $from_untrusted/$MASK_FROM -g inbound | |
| 31 | ||
| 32 | ## Locally generated packets are all OK. | |
| 33 | run iptables -P OUTPUT ACCEPT | |
| 34 | ||
| 35 | m4_divert(-1) | |
| 36 | ###----- That's all, folks -------------------------------------------------- |