diff --git a/Shorewall6/action.Broadcast b/Shorewall6/action.Broadcast new file mode 100644 index 000000000..ee86dfaea --- /dev/null +++ b/Shorewall6/action.Broadcast @@ -0,0 +1,71 @@ +# +# Shorewall 4 - Broadcast Action +# +# /usr/share/shorewall/action.Broadcast +# +# This program is under GPL [http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt] +# +# (c) 2011 - 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. +# +# Broadcast[([|-[,{audit|-}])] +# +# Default action is DROP +# +########################################################################################## +FORMAT 2 + +DEFAULTS DROP,- + +BEGIN PERL; + +use Shorewall::IPAddrs; +use Shorewall::Config; +use Shorewall::Chains; + +my $chainref = get_action_chain; +my ( $action, $audit ) = get_action_params( 2 ); +my ( $level, $tag ) = get_action_logging; +my $target = require_audit ( $action , $audit ); + +fatal_error "Invalid parameter to action Broadcast" if supplied $audit && $audit ne 'audit'; + +if ( have_capability( 'ADDRTYPE' ) ) { + if ( $level ne '' ) { + log_rule_limit $level, $chainref, 'dropBcast' , $action, '', $tag, 'add', ' -m addrtype --dst-type BROADCAST '; + log_rule_limit $level, $chainref, 'dropBcast' , $action, '', $tag, 'add', ' -m addrtype --dst-type MULTICAST '; + log_rule_limit $level, $chainref, 'dropBcast' , $action, '', $tag, 'add', ' -m addrtype --dst-type ANYCAST '; + } + + add_jump $chainref, $target, 0, "-m addrtype --dst-type BROADCAST "; + add_jump $chainref, $target, 0, "-m addrtype --dst-type MULTICAST "; + add_jump $chainref, $target, 0, "-m addrtype --dst-type ANYCAST "; +} else { + add_commands $chainref, 'for address in $ALL_ACASTS; do'; + incr_cmd_level $chainref; + log_rule_limit $level, $chainref, 'Broadcast' , $action, '', $tag, 'add', ' -d $address ' if $level ne ''; + add_jump $chainref, $target, 0, "-d \$address "; + decr_cmd_level $chainref; + add_commands $chainref, 'done'; +} + +log_rule_limit( $level, $chainref, 'Broadcast' , $action, '', $tag, 'add', join( ' ', '-d', IPv6_MULTICAST . ' ' ) ) if $level ne ''; +add_jump $chainref, $target, 0, join( ' ', '-d', IPv6_MULTICAST . ' ' ); + +1; + +END PERL;