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Handle 'RETURN' in state chain with terminating disposition.

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Signed-off-by: Tom Eastep <teastep@shorewall.net>
This commit is contained in:
Tom Eastep 2013-02-04 15:08:20 -08:00
parent 3757607356
commit 615df6ab8f
2 changed files with 46 additions and 11 deletions
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9
Shorewall/Perl/Shorewall/Chains.pm
View File

@ -72,6 +72,7 @@ our @EXPORT = ( qw(
allow_move
set_optflags
reset_optflags
has_return
dont_optimize
dont_delete
dont_move
@ -2211,6 +2212,14 @@ sub set_optflags( $$ ) {
$chainref;
}
#
# Return true if the passed chain has a RETURN rule.
#
sub has_return( $ ) {
$_[0]->{optflags} & RETURNS;
}
#
# Reset the dont_optimize flag for a chain
#

44
Shorewall/Perl/Shorewall/Rules.pm
View File

@ -2685,21 +2685,47 @@ sub check_state( $ ) {
for ( split ',', $blacklist_states ) {
return 1 if $_ eq $state;
}
} else {
if ( ( $state eq 'ESTABLISHED' ) ||
( $state =~ /^(?:INVALID|UNTRACKED|RELATED)$/ && $globals{"${state}_TARGET"} ) ) {
my $sectionref = $actparms{0}->{sections};
if ( $sectionref ) {
return 0 if $sectionref->{$state};
return 0;
}
if ( $state eq 'ESTABLISHED' ) {
my $sectionref = $actparms{0}->{sections};
return ( $sectionref && $sectionref->{$state} ) ? 0 : $section == ESTABLISHED_SECTION ? 2 : 1;
}
if ( $state =~ /^(?:INVALID|UNTRACKED|RELATED)$/ && $globals{"${state}_TARGET"} ) {
#
# One of the states that has its own state chain -- get the current action's chain
#
my $chainref = $actparms{0};
#
# See if we've passed the section associated with this STATE
#
if ( my $sectionref = $chainref->{sections} ) {
if ( $sectionref->{$state} ) {
#
# We're past that section -- see if there was a separate state chain
#
if ( my $statechainref = $filter_table->{"$statetable{$state}{char}$chainref->{name}"} ) {
#
# There was -- if the chain had a RETURN then we will emit the current rule; otherwise we won't
#
return has_return( $statechainref ) ? 1 : 0;
} else {
#
# There wasn't -- suppress the current rule
#
return 0;
}
}
}
}
if ( $section & ( NEW_SECTION | DEFAULTACTION_SECTION ) ) {
return ( $state =~ /^(?:INVALID|UNTRACKED|NEW)$/ );
$state =~ /^(?:INVALID|UNTRACKED|NEW)$/;
} else {
return $state eq $section_rmap{$section} ? 2 : 1;
}
$state eq $section_rmap{$section} ? 2 : 1;
}
}