Add an Established action.

Signed-off-by: Tom Eastep <teastep@shorewall.net>
This commit is contained in:
Tom Eastep 2013-01-27 15:40:53 -08:00
parent cbbcfe355e
commit f7bdb71aad
3 changed files with 75 additions and 16 deletions

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@ -0,0 +1,57 @@
#
# Shorewall 4 - Established Action
#
# /usr/share/shorewall/action.Established
#
# This program is under GPL [http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt]
#
# (c) 2011,2012 - Tom Eastep (teastep@shorewall.net)
#
# Complete documentation is available at http://shorewall.net
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of Version 2 of the GNU General Public License
# as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Established[([<action>|-[,{audit|-}])]
#
# Default action is DROP
#
##########################################################################################
?FORMAT 2
DEFAULTS DROP,-
?BEGIN PERL;
use Shorewall::IPAddrs;
use Shorewall::Config;
use Shorewall::Chains;
my ( $action, $audit ) = get_action_params( 2 );
fatal_error "Established parameter ($audit) to action Established" if supplied $audit && $audit ne 'audit';
fatal_error "Established parameter ($action) to action Established" unless $action =~ /^(?:ACCEPT|DROP|REJECT)$/;
my $chainref = get_action_chain;
my ( $level, $tag ) = get_action_logging;
my $target = require_audit ( $action , $audit );
log_rule_limit $level, $chainref, 'Established' , $action, '', $tag, 'add', "$globals{STATEMATCH} ESTABLISHED " if $level ne '';
add_jump $chainref , $target, 0, "$globals{STATEMATCH} ESTABLISHED ";
allow_optimize( $chainref );
1;
?END PERL;

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@ -38,6 +38,7 @@ A_Reject # Audited Default action for REJECT policy
Broadcast noinline # Handles Broadcast/Multicast/Anycast
Drop # Default Action for DROP policy
DropSmurfs noinline # Drop smurf packets
Established nolinline # Handles packets in the ESTABLISHED state
Invalid noinline # Handles packets in the INVALID conntrack state
NotSyn noinline # Handles TCP packets which do not have SYN=1 and ACK=0
Reject # Default Action for REJECT policy

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@ -26,6 +26,7 @@ AllowICMPs # Accept needed ICMP6 types
Broadcast noinline # Handles Broadcast/Multicast/Anycast
Drop # Default Action for DROP policy
DropSmurfs noinline # Handles packets with a broadcast source address
Established nolinline # Handles packets in the ESTABLISHED state
Invalid noinline # Handles packets in the INVALID conntrack state
NotSyn noinline # Handles TCP packets that do not have SYN=1 and ACK=0
Reject # Default Action for REJECT policy