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Infrastructure required by Docker

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Signed-off-by: Tom Eastep <teastep@shorewall.net>
This commit is contained in:
Tom Eastep 2016-02-20 14:01:48 -08:00
parent caba1cd770
commit 61f6cacc30
2 changed files with 30 additions and 1 deletions
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11
Shorewall/Perl/Shorewall/Chains.pm
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@ -2989,6 +2989,8 @@ sub initialize_chain_table($) {
}
}
my $chainref;
if ( $full ) {
#
# Create this chain early in case it is needed by Policy actions
@ -2996,11 +2998,18 @@ sub initialize_chain_table($) {
new_standard_chain 'reject';
if ( $config{DOCKER} ) {
my $chainref = new_nat_chain( $globals{POSTROUTING} = 'SHOREWALL' );
$chainref = new_nat_chain( $globals{POSTROUTING} = 'SHOREWALL' );
set_optflags( $chainref, DONT_OPTIMIZE | DONT_DELETE | DONT_MOVE );
}
}
if ( $config{DOCKER} ) {
$chainref = new_standard_chain( 'DOCKER' );
set_optflags( $chainref, DONT_OPTIMIZE | DONT_DELETE | DONT_MOVE );
$chainref = new_nat_chain( 'DOCKER' );
set_optflags( $chainref, DONT_OPTIMIZE | DONT_DELETE | DONT_MOVE );
}
my $ruleref = transform_rule( $globals{LOGLIMIT} );
$globals{iLOGLIMIT} =

20
Shorewall/Perl/Shorewall/Misc.pm
View File

@ -646,6 +646,26 @@ sub add_common_rules ( $ ) {
my $level = $config{BLACKLIST_LOG_LEVEL};
my $tag = $globals{BLACKLIST_LOG_TAG};
my $rejectref = $filter_table->{reject};
#
# Insure that Docker jumps are early in the builtin chains
#
if ( $config{DOCKER} ) {
my $forwardref = $filter_table->{FORWARD};
add_ijump( $nat_table->{PREROUTING}, j => 'DOCKER', addrtype => '--dst-type LOCAL' );
add_ijump( $nat_table->{OUTPUT}, j => 'DOCKER', d => '127.0.0.0/8', addrtype => '--dst-type LOCAL' );
add_ijump_extended( $forwardref, j => 'DOCKER', $origin{DOCKER}, o => 'docker0' );
unless ( known_interface('docker0') ) {
#
# Emulate the Docker-generated rules
#
add_ijump_extended( $forwardref, j => 'ACCEPT', $origin{DOCKER}, o => 'docker0', conntrack => '--ctstate ESTABLISHED,RELATED' );
add_ijump_extended( $forwardref, j => 'ACCEPT', $origin{DOCKER}, i => 'docker0', o => '! docker0' );
add_ijump_extended( $forwardref, j => 'ACCEPT', $origin{DOCKER}, i => 'docker0', o => 'docker0' );
}
}
if ( $config{DYNAMIC_BLACKLIST} ) {
add_rule_pair( set_optflags( new_standard_chain( 'logdrop' ) , DONT_OPTIMIZE | DONT_DELETE ), '' , 'DROP' , $level , $tag);