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https://gitlab.com/shorewall/code.git
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Next IPv6 Installment
git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@8940 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
This commit is contained in:
teastep
parent
692e83c1c8
commit
64fd8cd1f3
@ -690,13 +690,13 @@ sub use_input_chain($) {
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#
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# Interface associated with a single zone -- use the zone's input chain if it has one
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#
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my $chainref = $filter_table->{zone_input_chain $interfaceref->{zone4}};
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my $chainref = $filter_table->{zone_input_chain $interfaceref->{zone}};
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return 0 if $chainref;
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#
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# Use the '<zone>2fw' chain if it is referenced.
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#
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$chainref = $filter_table->{join( '' , $interfaceref->{zone4} , '2' , firewall_zone )};
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$chainref = $filter_table->{join( '' , $interfaceref->{zone} , '2' , firewall_zone )};
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! ( $chainref->{referenced} || $chainref->{is_policy} )
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}
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@ -734,13 +734,13 @@ sub use_output_chain($) {
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#
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# Interface associated with a single zone -- use the zone's output chain if it has one
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#
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my $chainref = $filter_table->{zone_output_chain $interfaceref->{zone4}};
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my $chainref = $filter_table->{zone_output_chain $interfaceref->{zone}};
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return 0 if $chainref;
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#
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# Use the 'fw2<zone>' chain if it is referenced.
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#
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$chainref = $filter_table->{join( '', firewall_zone , '2', $interfaceref->{zone4} )};
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$chainref = $filter_table->{join( '', firewall_zone , '2', $interfaceref->{zone} )};
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! ( $chainref->{referenced} || $chainref->{is_policy} )
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}
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@ -797,13 +797,15 @@ sub compiler {
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#
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determine_zones;
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#
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# Process the interfaces file.
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# Process the interfaces file(s).
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#
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validate_interfaces_file ( $export );
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validate_interfaces_file ( 'interfaces', $export );
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#
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# Process the hosts file.
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#
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validate_hosts_file;
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my $ipsec = validate_hosts_file( 'hosts' );
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$capabilities{POLICY_MATCH} = '' unless $ipsec || haveipseczones;
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#
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# Report zone contents
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#
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@ -47,6 +47,7 @@ our @EXPORT = qw( NOTHING
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all_zones
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complex_zones
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non_firewall_zones
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haveipseczones
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single_interface
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validate_interfaces_file
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all_interfaces
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@ -93,6 +94,7 @@ use constant { NOTHING => 'NOTHING',
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# children => [ <children> ]
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# interfaces => [ <interfaces> ]
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# bridge => <bridge>
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# family => 1 = IPv4, 2 = IPv6, 3 = firewall
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# hosts { <type> } => [ { <interface1> => { ipsec => 'ipsec'|'none'
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# options => { <option1> => <value1>
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# ...
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@ -127,7 +129,7 @@ our %reservedName = ( all => 1,
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# options => { <option1> = <val1> ,
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# ...
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# }
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# zone4 => <zone name>
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# zone => <zone name>
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# nets => <number of nets in interface/hosts records referring to this interface>
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# bridge => <bridge>
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# broadcasts => 'none', 'detect' or [ <addr1>, <addr2>, ... ]
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@ -135,9 +137,32 @@ our %reservedName = ( all => 1,
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# }
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# }
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#
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our @interfaces;
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our %interfaces;
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our @bport_zones;
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our @interfaces4;
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our %interfaces4;
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our @bport_zones4;
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our @interfaces6;
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our %interfaces6;
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our @bport_zones6;
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our $interface_list;
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our $interface_table;
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our $bport_zones;
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our $zone_family;
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sub use_ipv4_interfaces() {
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$interface_list = \@interfaces4;
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$interface_table = \%interfaces4;
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$bport_zones = \@bport_zones4;
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$zone_family = F_INET;
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}
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sub use_ipv6_interfaces() {
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$interface_list = \@interfaces6;
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$interface_table = \%interfaces6;
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$bport_zones = \@bport_zones6;
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$zone_family = F_INET6;
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}
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#
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# Initialize globals -- we take this novel approach to globals initialization to allow
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@ -153,9 +178,15 @@ sub initialize() {
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%zones = ();
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$firewall_zone = '';
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@interfaces = ();
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%interfaces = ();
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@bport_zones = ();
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@interfaces4 = ();
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%interfaces4 = ();
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@bport_zones4 = ();
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@interfaces6 = ();
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%interfaces6 = ();
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@bport_zones6 = ();
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use_ipv4_interfaces;
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}
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INIT {
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@ -240,6 +271,7 @@ sub determine_zones()
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my @z;
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my $ipv4 = 0;
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my $ipv6 = 0;
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my $fn = open_file 'zones';
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@ -269,21 +301,36 @@ sub determine_zones()
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$type = "ipv4" unless $type;
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my $family = F_INET;
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if ( $type =~ /ipv4/i ) {
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$type = 'ipv4';
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$ipv4 = 1;
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} elsif ( $type =~ /ipv6/i ) {
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$type = 'ipv6';
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$ipv6 = 1;
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$family = F_INET6;
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} elsif ( $type =~ /^ipsec4?$/i ) {
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$type = 'ipsec4';
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} elsif ( $type =~ /^ipsec6$/i ) {
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$type = 'ipsec6';
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$family = F_INET6;
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} elsif ( $type =~ /^bport4?$/i ) {
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warning_message "Bridge Port zones should have a parent zone" unless @parents;
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$type = 'bport4';
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push @bport_zones, $zone;
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push @bport_zones4, $zone;
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} elsif ( $type =~ /^bport6$/i ) {
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warning_message "Bridge Port zones should have a parent zone" unless @parents;
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$type = 'bport6';
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$family = F_INET6;
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push @bport_zones6, $zone;
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} elsif ( $type eq 'firewall' ) {
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fatal_error 'Firewall zone may not be nested' if @parents;
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fatal_error "Only one firewall zone may be defined ($zone)" if $firewall_zone;
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$firewall_zone = $zone;
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$ENV{FW} = $zone;
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$type = "firewall";
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$family = F_INET | F_INET6;
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} elsif ( $type eq '-' ) {
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$type = 'ipv4';
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$ipv4 = 1;
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@ -291,6 +338,10 @@ sub determine_zones()
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fatal_error "Invalid zone type ($type)" ;
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}
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for ( @parents ) {
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fatal_error "Incompatible Parent/Child Zones Types ($_)" unless $zones{$_}{family} == $family
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}
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for ( $options, $in_options, $out_options ) {
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$_ = '' if $_ eq '-';
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}
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@ -299,10 +350,11 @@ sub determine_zones()
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parents => \@parents,
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exclusions => [],
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bridge => '',
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family => $family,
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options => { in_out => parse_zone_option_list( $options || '', $type ) ,
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in => parse_zone_option_list( $in_options || '', $type ) ,
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out => parse_zone_option_list( $out_options || '', $type ) ,
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complex => ($type eq 'ipsec4' || $options || $in_options || $out_options ? 1 : 0) ,
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complex => ($type =~ /^ipsec/ || $options || $in_options || $out_options ? 1 : 0) ,
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nested => @parents > 0 } ,
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interfaces => {} ,
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children => [] ,
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@ -312,7 +364,7 @@ sub determine_zones()
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}
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fatal_error "No firewall zone defined" unless $firewall_zone;
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fatal_error "No IPv4 zones defined" unless $ipv4;
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fatal_error "No IPv4 or IPv6 zones defined" unless $ipv4 || $ipv6;
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my %ordered;
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@ -340,7 +392,7 @@ sub determine_zones()
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#
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sub haveipseczones() {
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for my $zoneref ( values %zones ) {
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return 1 if $zoneref->{type} eq 'ipsec4';
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return 1 if $zoneref->{type} =~ /^ipsec/;
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}
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0;
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@ -384,7 +436,7 @@ sub zone_report()
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}
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unless ( $printed ) {
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fatal_error "No bridge has been associated with zone $zone" if $type eq 'bport4' && ! $zoneref->{bridge};
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fatal_error "No bridge has been associated with zone $zone" if $type =~ /^bport*/ && ! $zoneref->{bridge};
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warning_message "*** $zone is an EMPTY ZONE ***" unless $type eq 'firewall';
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}
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@ -402,7 +454,7 @@ sub dump_zone_contents()
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my $exclusions = $zoneref->{exclusions};
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my $entry = "$zone $type";
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$entry .= ":$zoneref->{bridge}" if $type eq 'bport4';
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$entry .= ":$zoneref->{bridge}" if $type =~ /^bport/;
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if ( $hostref ) {
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for my $type ( sort keys %$hostref ) {
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@ -455,7 +507,7 @@ sub add_group_to_zone($$$$$)
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my $arrayref;
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my $zoneref = $zones{$zone};
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my $zonetype = $zoneref->{type};
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my $ifacezone = $interfaces{$interface}{zone4};
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my $ifacezone = $interface_table->{$interface}{zone};
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$zoneref->{interfaces}{$interface} = 1;
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@ -467,7 +519,7 @@ sub add_group_to_zone($$$$$)
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$ifacezone = '' unless defined $ifacezone;
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for my $host ( @$networks ) {
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$interfaces{$interface}{nets}++;
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$interface_table->{$interface}{nets}++;
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fatal_error "Invalid Host List" unless defined $host and $host ne '';
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@ -519,6 +571,7 @@ sub find_zone( $ ) {
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my $zoneref = $zones{$zone};
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fatal_error "Unknown zone ($zone)" unless $zoneref;
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fatal_error "Zone has wrong address family" unless $zoneref->{family} & $zone_family;
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$zoneref;
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}
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@ -528,19 +581,21 @@ sub zone_type( $ ) {
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}
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sub defined_zone( $ ) {
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$zones{$_[0]};
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my $zoneref = $zones{$_[0]};
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$zoneref && $zoneref->{family} & $zone_family ? $zoneref : undef;
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}
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sub all_zones() {
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@zones;
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grep ( $zones{$_}{family} & $zone_family , @zones );
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}
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sub non_firewall_zones() {
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grep ( $zones{$_}{type} ne 'firewall' , @zones );
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grep ( $zones{$_}{type} ne 'firewall' , all_zones() );
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}
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sub complex_zones() {
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grep( $zones{$_}{options}{complex} , @zones );
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grep( $zones{$_}{options}{complex} , all_zones() );
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}
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sub firewall_zone() {
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@ -551,9 +606,9 @@ sub firewall_zone() {
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# Parse the interfaces file.
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#
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sub validate_interfaces_file( $ )
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sub validate_interfaces_file( $$ )
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{
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my $export = shift;
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my ( $filename, $export ) = @_;
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my $num = 0;
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use constant { SIMPLE_IF_OPTION => 1,
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@ -565,7 +620,7 @@ sub validate_interfaces_file( $ )
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IF_OPTION_ZONEONLY => 8 };
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my %validoptions = (arp_filter => BINARY_IF_OPTION,
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my %validoptions = $zone_family == F_INET ? (arp_filter => BINARY_IF_OPTION,
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arp_ignore => ENUM_IF_OPTION,
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blacklist => SIMPLE_IF_OPTION,
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bridge => SIMPLE_IF_OPTION,
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@ -583,9 +638,20 @@ sub validate_interfaces_file( $ )
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tcpflags => SIMPLE_IF_OPTION,
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upnp => SIMPLE_IF_OPTION,
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mss => NUMERIC_IF_OPTION,
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) :
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(blacklist => SIMPLE_IF_OPTION,
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bridge => SIMPLE_IF_OPTION,
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maclist => SIMPLE_IF_OPTION,
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nosmurfs => SIMPLE_IF_OPTION,
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optional => SIMPLE_IF_OPTION,
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proxyndp => BINARY_IF_OPTION,
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routeback => SIMPLE_IF_OPTION + IF_OPTION_ZONEONLY,
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sourceroute => BINARY_IF_OPTION,
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tcpflags => SIMPLE_IF_OPTION,
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mss => NUMERIC_IF_OPTION,
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);
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my $fn = open_file 'interfaces';
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my $fn = open_file $filename;
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my $first_entry = 1;
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@ -608,6 +674,7 @@ sub validate_interfaces_file( $ )
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$zoneref = $zones{$zone};
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fatal_error "Unknown zone ($zone)" unless $zoneref;
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fatal_error "Zone $zone has wrong address family" unless $zoneref->{family} == $zone_family;
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fatal_error "Firewall zone not allowed in ZONE column of interface record" if $zoneref->{type} eq 'firewall';
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}
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@ -622,9 +689,9 @@ sub validate_interfaces_file( $ )
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fatal_error qq("Virtual" interfaces are not supported -- see http://www.shorewall.net/Shorewall_and_Aliased_Interfaces.html) if $port =~ /^\d+$/;
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require_capability( 'PHYSDEV_MATCH', 'Bridge Ports', '');
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fatal_error "Your iptables is not recent enough to support bridge ports" unless $capabilities{KLUDGEFREE};
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fatal_error "Duplicate Interface ($port)" if $interfaces{$port};
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fatal_error "$interface is not a defined bridge" unless $interfaces{$interface} && $interfaces{$interface}{options}{bridge};
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fatal_error "Bridge Ports may only be associated with 'bport' zones" if $zone && $zoneref->{type} ne 'bport4';
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fatal_error "Duplicate Interface ($port)" if $interface_table->{$port};
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fatal_error "$interface is not a defined bridge" unless $interface_table->{$interface} && $interface_table->{$interface}{options}{bridge};
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fatal_error "Bridge Ports may only be associated with 'bport' zones" if $zone && ! $zoneref->{type} =~ /^bport/;
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if ( $zone ) {
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if ( $zoneref->{bridge} ) {
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@ -643,8 +710,8 @@ sub validate_interfaces_file( $ )
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$bridge = $interface;
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$interface = $port;
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} else {
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fatal_error "Duplicate Interface ($interface)" if $interfaces{$interface};
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fatal_error "Zones of type 'bport' may only be associated with bridge ports" if $zone && $zoneref->{type} eq 'bport4';
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fatal_error "Duplicate Interface ($interface)" if $interface_table->{$interface};
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fatal_error "Zones of type 'bport' may only be associated with bridge ports" if $zone && $zoneref->{type} =~ /^bport/;
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$bridge = $interface;
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}
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@ -661,6 +728,7 @@ sub validate_interfaces_file( $ )
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my $broadcasts;
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unless ( $networks eq '' || $networks eq 'detect' ) {
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fatal_error "BROADCAST may not be specified for IPv6 Interfaces" if $zone_family == F_INET6;
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my @broadcasts = split $networks, 'address';
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for my $address ( @broadcasts ) {
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@ -736,7 +804,7 @@ sub validate_interfaces_file( $ )
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$optionsref = \%options;
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$interfaces{$interface} = { name => $interface ,
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$interface_table->{$interface} = { name => $interface ,
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bridge => $bridge ,
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nets => 0 ,
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number => ++$num ,
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@ -750,7 +818,7 @@ sub validate_interfaces_file( $ )
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add_group_to_zone( $zone, $zoneref->{type}, $interface, \@networks, $optionsref ) if $zone;
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$interfaces{$interface}{zone4} = $zone; #Must follow the call to add_group_to_zone()
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$interface_table->{$interface}{zone} = $zone; #Must follow the call to add_group_to_zone()
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progress_message " Interface \"$currentline\" Validated";
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@ -760,24 +828,24 @@ sub validate_interfaces_file( $ )
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# We now assemble the @interfaces array such that bridge ports immediately precede their associated bridge
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#
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for my $interface ( @ifaces ) {
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my $interfaceref = $interfaces{$interface};
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my $interfaceref = $interface_table->{$interface};
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if ( $interfaceref->{options}{bridge} ) {
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my @ports = grep $interfaces{$_}{options}{port} && $interfaces{$_}{bridge} eq $interface, @ifaces;
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my @ports = grep $interface_table->{$_}{options}{port} && $interface_table->{$_}{bridge} eq $interface, @ifaces;
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if ( @ports ) {
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push @interfaces, @ports;
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push @{$interface_list}, @ports;
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} else {
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$interfaceref->{options}{routeback} = 1; #so the bridge will work properly
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}
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}
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push @interfaces, $interface unless $interfaceref->{options}{port};
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push @{$interface_list}, $interface unless $interfaceref->{options}{port};
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}
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#
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# Be sure that we have at least one interface
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#
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fatal_error "No network interfaces defined" unless @interfaces;
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fatal_error "No network interfaces defined" unless @{$interface_list};
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}
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#
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@ -788,19 +856,19 @@ sub validate_interfaces_file( $ )
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sub known_interface($)
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{
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my $interface = $_[0];
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my $interfaceref = $interfaces{$interface};
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my $interfaceref = $interface_table->{$interface};
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return $interfaceref if $interfaceref;
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for my $i ( @interfaces ) {
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$interfaceref = $interfaces{$i};
|
||||
for my $i ( @{$interface_list} ) {
|
||||
$interfaceref = $interface_table->{$i};
|
||||
my $val = $interfaceref->{root};
|
||||
next if $val eq $i;
|
||||
if ( substr( $interface, 0, length $val ) eq $val ) {
|
||||
#
|
||||
# Cache this result for future reference. We set the 'name' to the name of the entry that appears in /etc/shorewall/interfaces.
|
||||
#
|
||||
return $interfaces{$interface} = { options => $interfaceref->{options}, bridge => $interfaceref->{bridge} , name => $i , number => $interfaceref->{number} };
|
||||
return $interface_table->{$interface} = { options => $interfaceref->{options}, bridge => $interfaceref->{bridge} , name => $i , number => $interfaceref->{number} };
|
||||
}
|
||||
}
|
||||
|
||||
@ -811,14 +879,14 @@ sub known_interface($)
|
||||
# Return interface number
|
||||
#
|
||||
sub interface_number( $ ) {
|
||||
$interfaces{$_[0]}{number} || 256;
|
||||
$interface_table->{$_[0]}{number} || 256;
|
||||
}
|
||||
|
||||
#
|
||||
# Return the interfaces list
|
||||
#
|
||||
sub all_interfaces() {
|
||||
@interfaces;
|
||||
@{$interface_list};
|
||||
}
|
||||
|
||||
#
|
||||
@ -826,7 +894,7 @@ sub all_interfaces() {
|
||||
#
|
||||
sub find_interface( $ ) {
|
||||
my $interface = $_[0];
|
||||
my $interfaceref = $interfaces{ $interface };
|
||||
my $interfaceref = $interface_table->{ $interface };
|
||||
|
||||
fatal_error "Unknown Interface ($interface)" unless $interfaceref;
|
||||
|
||||
@ -837,7 +905,7 @@ sub find_interface( $ ) {
|
||||
# Returns true if there are bridge port zones defined in the config
|
||||
#
|
||||
sub have_bridges() {
|
||||
@bport_zones > 0;
|
||||
@{$bport_zones} > 0;
|
||||
}
|
||||
|
||||
#
|
||||
@ -845,7 +913,7 @@ sub have_bridges() {
|
||||
# return ''
|
||||
#
|
||||
sub port_to_bridge( $ ) {
|
||||
my $portref = $interfaces{$_[0]};
|
||||
my $portref = $interface_table->{$_[0]};
|
||||
return $portref && $portref->{options}{port} ? $portref->{bridge} : '';
|
||||
}
|
||||
|
||||
@ -853,7 +921,7 @@ sub port_to_bridge( $ ) {
|
||||
# Return the bridge associated with the passed interface.
|
||||
#
|
||||
sub source_port_to_bridge( $ ) {
|
||||
my $portref = $interfaces{$_[0]};
|
||||
my $portref = $interface_table->{$_[0]};
|
||||
return $portref ? $portref->{bridge} : '';
|
||||
}
|
||||
|
||||
@ -861,7 +929,7 @@ sub source_port_to_bridge( $ ) {
|
||||
# Return the 'optional' setting of the passed interface
|
||||
#
|
||||
sub interface_is_optional($) {
|
||||
my $optionsref = $interfaces{$_[0]}{options};
|
||||
my $optionsref = $interface_table->{$_[0]}{options};
|
||||
$optionsref && $optionsref->{optional};
|
||||
}
|
||||
|
||||
@ -872,8 +940,8 @@ sub find_interfaces_by_option( $ ) {
|
||||
my $option = $_[0];
|
||||
my @ints = ();
|
||||
|
||||
for my $interface ( @interfaces ) {
|
||||
my $optionsref = $interfaces{$interface}{options};
|
||||
for my $interface ( @{$interface_list} ) {
|
||||
my $optionsref = $interface_table->{$interface}{options};
|
||||
if ( $optionsref && defined $optionsref->{$option} ) {
|
||||
push @ints , $interface
|
||||
}
|
||||
@ -888,7 +956,7 @@ sub find_interfaces_by_option( $ ) {
|
||||
sub get_interface_option( $$ ) {
|
||||
my ( $interface, $option ) = @_;
|
||||
|
||||
$interfaces{$interface}{options}{$option};
|
||||
$interface_table->{$interface}{options}{$option};
|
||||
}
|
||||
|
||||
#
|
||||
@ -897,14 +965,16 @@ sub get_interface_option( $$ ) {
|
||||
sub set_interface_option( $$$ ) {
|
||||
my ( $interface, $option, $value ) = @_;
|
||||
|
||||
$interfaces{$interface}{options}{$option} = $value;
|
||||
$interface_table->{$interface}{options}{$option} = $value;
|
||||
}
|
||||
|
||||
#
|
||||
# Validates the hosts file. Generates entries in %zone{..}{hosts}
|
||||
#
|
||||
sub validate_hosts_file()
|
||||
sub validate_hosts_file( $ )
|
||||
{
|
||||
my $filename = shift;
|
||||
|
||||
my %validoptions = (
|
||||
blacklist => 1,
|
||||
maclist => 1,
|
||||
@ -921,7 +991,7 @@ sub validate_hosts_file()
|
||||
my $ipsec = 0;
|
||||
my $first_entry = 1;
|
||||
|
||||
my $fn = open_file 'hosts';
|
||||
my $fn = open_file $filename;
|
||||
|
||||
while ( read_a_line ) {
|
||||
|
||||
@ -944,16 +1014,16 @@ sub validate_hosts_file()
|
||||
$interface = $1;
|
||||
$hosts = $2;
|
||||
$zoneref->{options}{complex} = 1 if $hosts =~ /^\+/;
|
||||
fatal_error "Unknown interface ($interface)" unless $interfaces{$interface}{root};
|
||||
fatal_error "Unknown interface ($interface)" unless $interface_table->{$interface}{root};
|
||||
} else {
|
||||
fatal_error "Invalid HOST(S) column contents: $hosts";
|
||||
}
|
||||
|
||||
if ( $type eq 'bport4' ) {
|
||||
if ( $type =~ /^bport/ ) {
|
||||
if ( $zoneref->{bridge} eq '' ) {
|
||||
fatal_error 'Bridge Port Zones may only be associated with bridge ports' unless $interfaces{$interface}{options}{port};
|
||||
$zoneref->{bridge} = $interfaces{$interface}{bridge};
|
||||
} elsif ( $zoneref->{bridge} ne $interfaces{$interface}{bridge} ) {
|
||||
fatal_error 'Bridge Port Zones may only be associated with bridge ports' unless $interface_table->{$interface}{options}{port};
|
||||
$zoneref->{bridge} = $interface_table->{$interface}{bridge};
|
||||
} elsif ( $zoneref->{bridge} ne $interface_table->{$interface}{bridge} ) {
|
||||
fatal_error "Interface $interface is not a port on bridge $zoneref->{bridge}";
|
||||
}
|
||||
}
|
||||
@ -1000,7 +1070,7 @@ sub validate_hosts_file()
|
||||
progress_message " Host \"$currentline\" validated";
|
||||
}
|
||||
|
||||
$capabilities{POLICY_MATCH} = '' unless $ipsec || haveipseczones;
|
||||
return $ipsec;
|
||||
}
|
||||
|
||||
#
|
||||
@ -1011,7 +1081,7 @@ sub find_hosts_by_option( $ ) {
|
||||
my $option = $_[0];
|
||||
my @hosts;
|
||||
|
||||
for my $zone ( grep $zones{$_}{type} ne 'firewall' , @zones ) {
|
||||
for my $zone ( non_firewall_zones() ) {
|
||||
while ( my ($type, $interfaceref) = each %{$zones{$zone}{hosts}} ) {
|
||||
while ( my ( $interface, $arrayref) = ( each %{$interfaceref} ) ) {
|
||||
for my $host ( @{$arrayref} ) {
|
||||
@ -1025,8 +1095,8 @@ sub find_hosts_by_option( $ ) {
|
||||
}
|
||||
}
|
||||
|
||||
for my $interface ( @interfaces ) {
|
||||
if ( ! $interfaces{$interface}{zone4} && $interfaces{$interface}{options}{$option} ) {
|
||||
for my $interface ( @{$interface_list} ) {
|
||||
if ( ! $interface_table->{$interface}{zone} && $interface_table->{$interface}{options}{$option} ) {
|
||||
push @hosts, [ $interface, 'none', ALLIP ];
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user