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Add Related and Untracked actions.

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Signed-off-by: Tom Eastep <teastep@shorewall.net>
This commit is contained in:
Tom Eastep 2013-01-26 09:45:16 -08:00
parent 5fa01728ad
commit 69b660ba56
5 changed files with 120 additions and 2 deletions
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2
Shorewall/action.Invalid
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@ -5,7 +5,7 @@
#
# This program is under GPL [http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt]
#
# (c) 2011 - Tom Eastep (teastep@shorewall.net)
# (c) 2011,2012 - Tom Eastep (teastep@shorewall.net)
#
# Complete documentation is available at http://shorewall.net
#

57
Shorewall/action.Related Normal file
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@ -0,0 +1,57 @@
#
# Shorewall 4 - Invalid Action
#
# /usr/share/shorewall/action.Related
#
# This program is under GPL [http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt]
#
# (c) 2013 - 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.
#
# Related[([<action>|-[,{audit|-}])]
#
# Default action is DROP
#
##########################################################################################
?FORMAT 2
DEFAULTS DROP,-
?BEGIN PERL;
use Shorewall::IPAddrs;
use Shorewall::Config;
use Shorewall::Chains;
my ( $action, $audit ) = get_action_params( 2 );
fatal_error "Related parameter ($audit) to action Related" if supplied $audit && $audit ne 'audit';
fatal_error "Related parameter ($action) to action Related" 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, 'Related' , $action, '', $tag, 'add', "$globals{STATEMATCH} RELATED " if $level ne '';
add_jump $chainref , $target, 0, "$globals{STATEMATCH} RELATED ";
allow_optimize( $chainref );
1;
?END PERL;

57
Shorewall/action.Untracked Normal file
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@ -0,0 +1,57 @@
#
# Shorewall 4 - Untracked Action
#
# /usr/share/shorewall/action.Untracked
#
# This program is under GPL [http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt]
#
# (c) 2013 - 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.
#
# Untracked[([<action>|-[,{audit|-}])]
#
# Default action is DROP
#
##########################################################################################
?FORMAT 2
DEFAULTS DROP,-
?BEGIN PERL;
use Shorewall::IPAddrs;
use Shorewall::Config;
use Shorewall::Chains;
my ( $action, $audit ) = get_action_params( 2 );
fatal_error "Untracked parameter ($audit) to action Untracked" if supplied $audit && $audit ne 'audit';
fatal_error "Untracked parameter ($action) to action Untracked" 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, 'Untracked' , $action, '', $tag, 'add', "$globals{STATEMATCH} UNTRACKED " if $level ne '';
add_jump $chainref , $target, 0, "$globals{STATEMATCH} UNTRACKED ";
allow_optimize( $chainref );
1;
?END PERL;

2
Shorewall/actions.std
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@ -41,5 +41,7 @@ DropSmurfs noinline # Drop smurf packets
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
Related noinline # Handles packets in the RELATED conntrack state
RST noinline # Handle packets with RST set
TCPFlags noinline # Handle bad flag combinations.
Untracked noinline # Handles packets in the UNTRACKED conntrack state

4
Shorewall6/actions.std
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@ -29,5 +29,7 @@ DropSmurfs noinline # Handles packets with a broadcast source address
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
Related noinline # Handles packets in the RELATED conntrack state
RST noinline # Handle packets with RST set
TCPFlags noinline # Handles bad flags combinations
Untracked noinline # Handles packets in the UNTRACKED conntrack state