Fix merge conflicts

This commit is contained in:
Tom Eastep 2009-11-28 07:16:03 -08:00
commit f5bf3c9b43
15 changed files with 287 additions and 34 deletions

View File

@ -167,7 +167,7 @@ our %EXPORT_TAGS = (
Exporter::export_ok_tags('internal');
our $VERSION = '4.4_4';
our $VERSION = '4.4_5';
#
# Chain Table
@ -1148,7 +1148,17 @@ sub finish_chain_section ($$) {
$comment = '';
add_rule $chainref, "-m state --state $state -j ACCEPT" unless $config{FASTACCEPT};
unless ( $config{FASTACCEPT} ) {
if ( $chainref->{marked} ) {
if ( $chainref->{marked} == @{$chainref->{rules}} ) {
insert_rule( $chainref, 0, "-m state --state $state -j ACCEPT" );
} else {
add_rule $chainref, "-m state --state $state -j ACCEPT";
}
} else {
add_rule $chainref, "-m state --state $state -j ACCEPT";
}
}
if ($sections{NEW} ) {
if ( $chainref->{is_policy} ) {
@ -1187,6 +1197,7 @@ sub finish_section ( $ ) {
for my $zone ( all_zones ) {
for my $zone1 ( all_zones ) {
my $chainref = $chain_table{'filter'}{rules_chain( $zone, $zone1 )};
finish_chain_section $chainref, $sections if $chainref->{referenced};
}
}

View File

@ -127,7 +127,7 @@ our %EXPORT_TAGS = ( internal => [ qw( create_temp_script
Exporter::export_ok_tags('internal');
our $VERSION = '4.4_4';
our $VERSION = '4.4_5';
#
# describe the current command, it's present progressive, and it's completion.
@ -242,6 +242,7 @@ our %capdesc = ( NAT_ENABLED => 'NAT',
IPMARK_TARGET => 'IPMARK Target',
PERSISTENT_SNAT => 'Persistent SNAT',
OLD_HL_MATCH => 'Old Hash Limit Match',
MARK_IN_FILTER => 'MARK in Filter Table',
CAPVERSION => 'Capability Version',
);
#
@ -619,6 +620,7 @@ sub initialize( $ ) {
LOG_TARGET => 1, # Assume that we have it.
PERSISTENT_SNAT => undef,
OLD_HL_MATCH => undef,
MARK_IN_FILTER => undef,
CAPVERSION => undef,
);
#
@ -2031,6 +2033,7 @@ sub determine_capabilities( $ ) {
$capabilities{LENGTH_MATCH} = qt1( "$iptables -A $sillyname -m length --length 10:20 -j ACCEPT" );
$capabilities{ENHANCED_REJECT} = qt1( "$iptables -A $sillyname -j REJECT --reject-with icmp6-admt-prohibited" );
$capabilities{COMMENTS} = qt1( qq($iptables -A $sillyname -j ACCEPT -m comment --comment "This is a comment" ) );
$capabilities{MARK_IN_FILTER} = qt1( "$iptables -A $sillyname -j MARK --set-mark 1" );
$capabilities{HASHLIMIT_MATCH} = qt1( "$iptables -A $sillyname -m hashlimit --hashlimit-upto 3/min --hashlimit-burst 3 --hashlimit-name $sillyname --hashlimit-mode srcip -j ACCEPT" );

View File

@ -129,8 +129,17 @@ sub add_or_modify_policy_chain( $$ ) {
push @policy_chains, $chainref;
}
} else {
push @policy_chains, ( new_policy_chain $zone, $zone1, 'CONTINUE', OPTIONAL );
push @policy_chains, ( $chainref = new_policy_chain $zone, $zone1, 'CONTINUE', OPTIONAL );
}
unless ( $chainref->{marked} ) {
my $mark = defined_zone( $zone )->{mark};
my $mark1 = defined_zone( $zone1 )->{mark} << VIRTUAL_BITS;
$chainref->{marked} = 1, add_rule $chainref, '-j MARK --or-mark ' . in_hex($mark) if $mark && $zone1 eq firewall_zone;
$chainref->{marked}++ , add_rule $chainref, '-j MARK --or-mark ' . in_hex($mark1) if $mark1;
}
}
sub print_policy($$$$) {
@ -348,8 +357,16 @@ sub validate_policy()
add_or_modify_policy_chain( $zone1, $zone );
}
}
}
}
} elsif ( zone_type( $zone ) == VIRTUAL ) {
for my $zone1 ( @{defined_zone( $zone )->{children}} ) {
for my $zone2 ( all_zones ) {
unless ( $zone1 eq $zone2 ) {
add_or_modify_policy_chain( $zone1, $zone2 );
add_or_modify_policy_chain( $zone2, $zone1 );
}
}
}
} }
my $fn = open_file 'policy';

View File

@ -311,6 +311,7 @@ sub add_a_provider( ) {
}
} else {
fatal_error "Invalid Mark Value ($mark)" unless $config{HIGH_ROUTE_MARKS} && $config{WIDE_TC_MARKS};
fatal_error "Invalid Mark Value ($mark)" if $val > 0xf0000;
}
for my $providerref ( values %providers ) {

View File

@ -1692,12 +1692,14 @@ sub generate_matrix() {
for my $zone ( @zones ) {
my $zoneref = find_zone( $zone );
next if @zones <= 2 && ! $zoneref->{options}{complex};
next if @zones <= 2 && ! ( $zoneref->{options}{complex} || $zoneref->{virtual} || $zoneref->{mark} );
#
# Complex zone and we have more than one non-firewall zone -- create a zone forwarding chain
#
my $frwd_ref = new_standard_chain zone_forward_chain( $zone );
add_rule $frwd_ref, '-j MARK --set-mark ' . in_hex( $zoneref->{mark} ) if $zoneref->{mark};
if ( $capabilities{POLICY_MATCH} ) {
#
# Because policy match only matches an 'in' or an 'out' policy (but not both), we have to place the
@ -1724,10 +1726,11 @@ sub generate_matrix() {
for my $hostref ( @{$arrayref} ) {
my $ipsec_match = match_ipsec_in $zone , $hostref;
my $exclusion = source_exclusion( $hostref->{exclusions}, $frwd_ref );
for my $net ( @{$hostref->{hosts}} ) {
add_jump(
$sourcechainref,
source_exclusion( $hostref->{exclusions}, $frwd_ref ),
$exclusion,
! @{$zoneref->{parents}},
join( '', $interfacematch , match_source_net( $net ), $ipsec_match )
);
@ -1759,6 +1762,7 @@ sub generate_matrix() {
my $nested = $zoneref->{options}{nested};
my $parenthasnat = 0;
my $parenthasnotrack = 0;
my $virtual = $zoneref->{virtual};
if ( $nested ) {
#
@ -1799,6 +1803,11 @@ sub generate_matrix() {
#
# Take care of PREROUTING, INPUT and OUTPUT jumps
#
if ( $virtual ) {
add_jump $filter_table->{OUTPUT}, $chain1, 0, "-m mark ! --mark 0/" . in_hex($virtual << VIRTUAL_BITS) . ' ' if $chain1;
add_jump $filter_table->{INPUT}, $chain2, 0, "-m mark ! --mark 0/" . in_hex($virtual) . ' ' if $chain2;
}
for my $typeref ( values %$source_hosts_ref ) {
for my $interface ( sort { interface_number( $a ) <=> interface_number( $b ) } keys %$typeref ) {
my $arrayref = $typeref->{$interface};
@ -1953,6 +1962,11 @@ sub generate_matrix() {
} else {
@dest_zones = @zones ;
}
if ( $frwd_ref ) {
add_jump $filter_table->{FORWARD}, $frwd_ref, 0, "-m mark ! --mark 0/" . in_hex($virtual) . ' ' if $virtual;
}
#
# Here it is -- THE BIG UGLY!!!!!!!!!!!!
#
@ -1961,6 +1975,7 @@ sub generate_matrix() {
#
for my $zone1 ( @dest_zones ) {
my $zone1ref = find_zone( $zone1 );
my $virtual1 = $zone1ref->{virtual} << VIRTUAL_BITS;
next if $filter_table->{rules_chain( ${zone}, ${zone1} )}->{policy} eq 'NONE';
@ -1990,13 +2005,16 @@ sub generate_matrix() {
next if $hostref->{options}{sourceonly};
if ( $zone ne $zone1 || $num_ifaces > 1 || $hostref->{options}{routeback} ) {
my $ipsec_out_match = match_ipsec_out $zone1 , $hostref;
my $exclusion = dest_exclusion( $hostref->{exclusions}, $chain);
for my $net ( @{$hostref->{hosts}} ) {
add_jump $frwd_ref, dest_exclusion( $hostref->{exclusions}, $chain), 0, join( '', match_dest_dev( $interface) , match_dest_net($net), $ipsec_out_match );
add_jump( $frwd_ref, $exclusion, 0, join( '', match_dest_dev( $interface) , match_dest_net($net), $ipsec_out_match ) );
}
}
}
}
}
add_jump( $frwd_ref, $chain, 0, '-m mark ! --mark 0/' . in_hex( $virtual1 ) . ' ' ) if $virtual1;
} else {
#
# More compilcated case. If the interface is associated with a single simple zone, we try to combine the interface's forwarding chain with the rules chain
@ -2032,6 +2050,7 @@ sub generate_matrix() {
for my $host1ref ( @$array1ref ) {
next if $host1ref->{options}{sourceonly};
my $ipsec_out_match = match_ipsec_out $zone1 , $host1ref;
my $exclusion = dest_exclusion( $host1ref->{exclusions}, $chain );
for my $net1 ( @{$host1ref->{hosts}} ) {
unless ( $interface eq $interface1 && $net eq $net1 && ! $host1ref->{options}{routeback} ) {
#
@ -2039,7 +2058,7 @@ sub generate_matrix() {
#
add_jump(
$excl3ref ,
dest_exclusion( $host1ref->{exclusions}, $chain ),
$exclusion,
0,
join( '',
$match_source_dev,
@ -2050,6 +2069,15 @@ sub generate_matrix() {
);
}
}
add_rule ( $excl3ref,
$chain,
join( '',
$match_source_dev,
match_source_net($net),
'-m mark ! --mark 0/',
in_hex( $virtual1 ),
' ' ) ) if $virtual1;
}
}
}

View File

@ -40,7 +40,7 @@ use strict;
our @ISA = qw(Exporter);
our @EXPORT = qw( setup_tc );
our @EXPORT_OK = qw( process_tc_rule initialize );
our $VERSION = '4.4_4';
our $VERSION = '4.4_5';
our %tcs = ( T => { chain => 'tcpost',
connmark => 0,
@ -1235,6 +1235,7 @@ sub setup_tc() {
if ( $capabilities{MANGLE_FORWARD} ) {
add_rule $mangle_table->{FORWARD} , '-j tcfor';
add_rule $mangle_table->{POSTROUTING}, '-j MARK --and-mark 0xffffff'; # Clear virtual marks
add_rule $mangle_table->{POSTROUTING} , '-j tcpost';
}

View File

@ -40,6 +40,8 @@ our @EXPORT = qw( NOTHING
IP
BPORT
IPSEC
VIRTUAL
VIRTUAL_BITS
determine_zones
zone_report
@ -75,7 +77,7 @@ our @EXPORT = qw( NOTHING
);
our @EXPORT_OK = qw( initialize );
our $VERSION = '4.4_4';
our $VERSION = '4.4_5';
#
# IPSEC Option types
@ -104,6 +106,8 @@ use constant { NOTHING => 'NOTHING',
# children => [ <children> ]
# interfaces => { <interfaces1> => 1, ... }
# bridge => <bridge>
# virtual => <virtual zone mark>
# mark => <LORed virtual zone marks of parent virtual zones>
# hosts { <type> } => [ { <interface1> => { ipsec => 'ipsec'|'none'
# options => { <option1> => <value1>
# ...
@ -156,11 +160,13 @@ our @bport_zones;
our %ipsets;
our %physical;
our $family;
our $virtualmark;
use constant { FIREWALL => 1,
IP => 2,
BPORT => 3,
IPSEC => 4 };
IPSEC => 4,
VIRTUAL => 5 };
use constant { SIMPLE_IF_OPTION => 1,
BINARY_IF_OPTION => 2,
@ -176,6 +182,11 @@ use constant { SIMPLE_IF_OPTION => 1,
IF_OPTION_HOST => 16,
};
use constant { VIRTUAL_BASE => 0x1000000 ,
VIRTUAL_MASK => 0xf000000 ,
VIRTUAL_BITS => 4 #Bits for virtual MASK numbers
};
our %validinterfaceoptions;
our %validhostoptions;
@ -201,6 +212,7 @@ sub initialize( $ ) {
@bport_zones = ();
%ipsets = ();
%physical = ();
$virtualmark = VIRTUAL_BASE;
if ( $family == F_IPV4 ) {
%validinterfaceoptions = (arp_filter => BINARY_IF_OPTION,
@ -353,6 +365,9 @@ sub process_zone( \$ ) {
my ($zone, $type, $options, $in_options, $out_options ) = split_line 1, 5, 'zones file';
my $mark = 0;
my $virtual = 0;
if ( $zone =~ /(\w+):([\w,]+)/ ) {
$zone = $1;
@parents = split_list $2, 'zone';
@ -361,6 +376,7 @@ sub process_zone( \$ ) {
fatal_error "Invalid Parent List ($2)" unless $p;
fatal_error "Unknown parent zone ($p)" unless $zones{$p};
fatal_error 'Subzones of firewall zone not allowed' if $zones{$p}{type} == FIREWALL;
$mark |= $zones{$p}{virtual};
push @{$zones{$p}{children}}, $zone;
}
}
@ -376,6 +392,12 @@ sub process_zone( \$ ) {
} elsif ( $type =~ /^ipsec([46])?$/i ) {
fatal_error "Invalid zone type ($type)" if $1 && $1 != $family;
$type = IPSEC;
for ( @parents ) {
unless ( $zones{$_}{type} == IPSEC ) {
set_super( $zones{$_} );
}
}
} elsif ( $type =~ /^bport([46])?$/i ) {
fatal_error "Invalid zone type ($type)" if $1 && $1 != $family;
warning_message "Bridge Port zones should have a parent zone" unless @parents;
@ -387,6 +409,12 @@ sub process_zone( \$ ) {
$firewall_zone = $zone;
$ENV{FW} = $zone;
$type = FIREWALL;
} elsif ( $type eq 'virtual' ) {
require_capability 'MARK_IN_FILTER' , 'virtual zones', '';
fatal_error "Too many virtual zones" unless $virtualmark & VIRTUAL_MASK;
$virtual = $virtualmark;
$virtualmark = $virtualmark << 1;
$type = VIRTUAL;
} elsif ( $type eq '-' ) {
$type = IP;
$$ip = 1;
@ -394,14 +422,6 @@ sub process_zone( \$ ) {
fatal_error "Invalid zone type ($type)" ;
}
if ( $type eq IPSEC ) {
for ( @parents ) {
unless ( $zones{$_}{type} == IPSEC ) {
set_super( $zones{$_} );
}
}
}
for ( $options, $in_options, $out_options ) {
$_ = '' if $_ eq '-';
}
@ -409,6 +429,8 @@ sub process_zone( \$ ) {
$zones{$zone} = { type => $type,
parents => \@parents,
bridge => '',
virtual => $virtual,
mark => $mark ,
options => { in_out => parse_zone_option_list( $options || '', $type ) ,
in => parse_zone_option_list( $in_options || '', $type ) ,
out => parse_zone_option_list( $out_options || '', $type ) ,
@ -485,9 +507,9 @@ sub zone_report()
my @translate;
if ( $family == F_IPV4 ) {
@translate = ( undef, 'firewall', 'ipv4', 'bport4', 'ipsec4' );
@translate = ( undef, 'firewall', 'ipv4', 'bport4', 'ipsec4', 'virtual' );
} else {
@translate = ( undef, 'firewall', 'ipv6', 'bport6', 'ipsec6' );
@translate = ( undef, 'firewall', 'ipv6', 'bport6', 'ipsec6', 'virtual' );
}
for my $zone ( @zones )
@ -530,9 +552,8 @@ sub zone_report()
unless ( $printed ) {
fatal_error "No bridge has been associated with zone $zone" if $type == BPORT && ! $zoneref->{bridge};
warning_message "*** $zone is an EMPTY ZONE ***" unless $type == FIREWALL;
warning_message "*** $zone is an EMPTY ZONE ***" unless $type == FIREWALL || ( $type == VIRTUAL && @{$zoneref->{children}} );
}
}
}
@ -544,9 +565,9 @@ sub dump_zone_contents()
my @xlate;
if ( $family == F_IPV4 ) {
@xlate = ( undef, 'firewall', 'ipv4', 'bport4', 'ipsec4' );
@xlate = ( undef, 'firewall', 'ipv4', 'bport4', 'ipsec4', 'virtual' );
} else {
@xlate = ( undef, 'firewall', 'ipv6', 'bport6', 'ipsec6' );
@xlate = ( undef, 'firewall', 'ipv6', 'bport6', 'ipsec6', 'virtual' );
}
for my $zone ( @zones )
@ -587,6 +608,12 @@ sub dump_zone_contents()
}
}
if ( $type == VIRTUAL && @{$zoneref->{children}} ) {
$entry .= " (";
$entry .= "$_," for @{$zoneref->{children}};
$entry =~ s/,$/) /;
}
emit_unindented $entry;
}
}

View File

@ -12,6 +12,8 @@ Changes in Shorewall 4.4.5
6) Fix 'show policies' in Shorewall6.
7) Implement 'virtual' zones.
Changes in Shorewall 4.4.4
1) Change STARTUP_LOG and LOG_VERBOSITY in default shorewall6.conf.

View File

@ -30,7 +30,7 @@
#
SHOREWALL_LIBVERSION=40000
SHOREWALL_CAPVERSION=40402
SHOREWALL_CAPVERSION=40405
[ -n "${VARDIR:=/var/lib/shorewall}" ]
[ -n "${SHAREDIR:=/usr/share/shorewall}" ]
@ -828,6 +828,7 @@ determine_capabilities() {
IPMARK_TARGET=
LOG_TARGET=Yes
PERSISTENT_SNAT=
MARK_IN_FILTER=
chain=fooX$$
@ -958,6 +959,7 @@ determine_capabilities() {
qt $IPTABLES -A $chain -g $chain1 && GOTO_TARGET=Yes
qt $IPTABLES -A $chain -j LOGMARK && LOGMARK_TARGET=Yes
qt $IPTABLES -A $chain -j LOG || LOG_TARGET=
qt $IPTABLES -A $chain -j MARK --set-mark 1 && MARK_IN_FILTER=Yes
qt $IPTABLES -F $chain
qt $IPTABLES -X $chain
@ -1026,6 +1028,7 @@ report_capabilities() {
report_capability "IPMARK Target" $IPMARK_TARGET
report_capability "LOG Target" $LOG_TARGET
report_capability "Persistent SNAT" $PERSISTENT_SNAT
report_capability "Mark in Filter Table" $MARK_IN_FILTER
fi
[ -n "$PKTTYPE" ] || USEPKTTYPE=
@ -1085,6 +1088,7 @@ report_capabilities1() {
report_capability1 IPMARK_TARGET
report_capability1 LOG_TARGET
report_capability1 PERSISTENT_SNAT
report_capability1 MARK_IN_FILTER
echo CAPVERSION=$SHOREWALL_CAPVERSION
}

View File

@ -230,6 +230,41 @@ None.
$FW dmz REJECT info
$FW all ACCEPT
3) Shorewall 4.4.5 introduces 'virtual' zones. A virtual zone is used
to group together a set of sub-zones. A virtual zone is declared
as TYPE 'virtual' in /etc/shorewall/zones.
Example:
virt virtual
The virtual zone must have no definition in
/etc/shorewall/interfaces or /etc/shorewall/hosts. Virtual zones
can themselves be nested in other virtual zones but there is a
limit of four virtual zones per configuration (that limitation
derives from the fact that each virtual zone requires 2 bits in the
packet mark).
Virtual zones are used as parent zones for other zones using the
<zone>:<parent> syntax in /etc/shorewall/zones:
Example:
virt virtual
loc:virt ipv4
vpn:virt ipsec
As shown in the example, a virtual zone may be a parent for
multiple zone types.
Virtual zones are intended to be used with
IMPLICIT_CONTINUE=No. They provide semantic behavior similar to
IMPLICIT_CONTINUE=Yes in that connections that do not match rules
for the sub-zone are applied to the parent zone.
For more information, see
http://www.shorewall.net/manpages/shorewall-nesting.html
----------------------------------------------------------------------------
N E W F E A T U R E S I N 4 . 4 . 0
----------------------------------------------------------------------------

View File

@ -33,7 +33,7 @@
#
SHOREWALL_LIBVERSION=40300
SHOREWALL_CAPVERSION=40402
SHOREWALL_CAPVERSION=40405
[ -n "${VARDIR:=/var/lib/shorewall6}" ]
[ -n "${SHAREDIR:=/usr/share/shorewall6}" ]
@ -737,6 +737,7 @@ determine_capabilities() {
GOTO_TARGET=
IPMARK_TARGET=
LOG_TARGET=Yes
MARK_IN_FILTER=Yes
chain=fooX$$
@ -864,6 +865,7 @@ determine_capabilities() {
qt $IP6TABLES -A $chain -m connlimit --connlimit-above 8 -j DROP && CONNLIMIT_MATCH=Yes
qt $IP6TABLES -A $chain -m time --timestart 23:00 -j DROP && TIME_MATCH=Yes
qt $IP6TABLES -A $chain -g $chain1 && GOTO_TARGET=Yes
qt $IP6TABLES -A $chain -j MARK --set-mark 1 && MARK_IN_FILTER=Yes
qt $IP6TABLES -A $chain -j LOG || LOG_TARGET=
qt $IP6TABLES -F $chain

View File

@ -154,14 +154,14 @@
to change the 'net' interface to something other than ppp0. That way, it
won't match ppp+.</para>
<para>If you are running Shorewall version 4.1.4 or later, a second way is
to simply make the nested zones explicit:<programlisting> #ZONE TYPE OPTION
<para>A second way is to simply make the nested zones
explicit:<programlisting> #ZONE TYPE OPTION
fw firewall
loc ipv4
net:loc ipv4
dmz ipv4</programlisting></para>
<para>If you take this approach, be sure to set IMPLICIT_CONTINUE=No in
<para>If you take this approach, be sure to set IMPLICIT_CONTINUE=Yes in
<filename>shorewall.conf</filename>.</para>
<para>When using other Shorewall versions, another way is to rewrite the
@ -183,6 +183,56 @@
loc ppp+:192.168.2.0/23</programlisting></para>
</refsect1>
<refsect1 id="Virtual">
<title>Virtual Zones</title>
<para>Beginning with Shorewall 4.4.5, Shorewall allows the declaration of
<firstterm>virtual</firstterm> zones. A virtual zone has no definition in
<filename>/etc/shorewall/interfaces</filename> or in
<filename>/etc/shorewall/hosts</filename>. Rather, it is used as a parent
zone for other zones in <filename>/etc/shorewall/zones</filename>.</para>
<para>Example:</para>
<para><filename>/etc/shorewall/zones</filename>:</para>
<programlisting> #ZONE TYPE OPTIONS
fw firewall
net ipv4
loc virtual #Virtual Zone
loc1:loc ipv4
loc2:loc ipv4</programlisting>
<para><filename>/etc/shorewall/interfaces</filename>:</para>
<programlisting> #ZONE INTERFACE BROADCAST OPTIONS
net eth0 detect dhcp,tcpflags,nosmurfs,routefilter,logmartians
- eth1 detect tcpflags,nosmurfs,routefilter,logmartians</programlisting>
<para><filename>/etc/shorewall/hosts</filename>:</para>
<programlisting> #ZONE HOST(S) OPTIONS
loc1 eth1:192.168.1.0/24
loc2 eth1:192.168.2.0/24</programlisting>
<para>There are several restrictions on virtual zones:</para>
<itemizedlist>
<listitem>
<para>A maximum of four virtual zones may be defined.</para>
</listitem>
<listitem>
<para>They should not be used with IMPLICIT_CONTINUE=Yes in <ulink
url="shorewall.conf.html">shorewall.conf</ulink>(5).</para>
</listitem>
</itemizedlist>
<para>When a connection request to/from a sub-zone of a virtual zone does
not match the rules for the sub-zone, the connection is compared against
the rules (and policies) for the parent virtual zone.</para>
</refsect1>
<refsect1>
<title>FILES</title>

View File

@ -169,6 +169,17 @@ c:a,b ipv4</programlisting>
single bridge.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><emphasis role="bold">virtual</emphasis></term>
<listitem>
<para>Added in Shorewall 4.4.5. Virtual zones are containers
for other zones. See <ulink
url="shorewall-nesting.html">shorewall-nesting (5)</ulink> for
details.</para>
</listitem>
</varlistentry>
</variablelist>
</listitem>
</varlistentry>

View File

@ -87,6 +87,56 @@
significant.</para>
</refsect1>
<refsect1 id="Virtual">
<title>Virtual Zones</title>
<para>Beginning with Shorewall 4.4.5, Shorewall allows the declaration of
<firstterm>virtual</firstterm> zones. A virtual zone has no definition in
<filename>/etc/shorewall6/interfaces</filename> or in
<filename>/etc/shorewall6/hosts</filename>. Rather, it is used as a parent
zone for other zones in <filename>/etc/shorewall6/zones</filename>.</para>
<para>Example:</para>
<para><filename>/etc/shorewall6/zones</filename>:</para>
<programlisting> #ZONE TYPE OPTIONS
fw firewall
net ipv6
loc virtual #Virtual Zone
loc1:loc ipv6
loc2:loc ipv6</programlisting>
<para><filename>/etc/shorewall/interfaces</filename>:</para>
<programlisting> #ZONE INTERFACE BROADCAST OPTIONS
net eth0 detect dhcp,tcpflags
- eth1 detect tcpflags</programlisting>
<para><filename>/etc/shorewall/hosts</filename>:</para>
<programlisting> #ZONE HOST(S) OPTIONS
loc1 eth1:2001:19f0:feee:1::/48
loc2 eth1:2001:19f0:feee:2::/48</programlisting>
<para>There are several restrictions on virtual zones:</para>
<itemizedlist>
<listitem>
<para>A maximum of four virtual zones may be defined.</para>
</listitem>
<listitem>
<para>They should not be used with IMPLICIT_CONTINUE=Yes in <ulink
url="shorewall6.conf.html">shorewall6.conf</ulink>(5).</para>
</listitem>
</itemizedlist>
<para>When a connection request to/from a sub-zone of a virtual zone does
not match the rules for the sub-zone, the connection is compared against
the rules (and policies) for the parent virtual zone.</para>
</refsect1>
<refsect1>
<title>FILES</title>

View File

@ -169,6 +169,17 @@ c:a,b ipv6</programlisting>
single bridge.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><emphasis role="bold">virtual</emphasis></term>
<listitem>
<para>Added in Shorewall 4.4.5. Virtual zones are containers
for other zones. See <ulink
url="shorewall6-nesting.html">shorewall6-nesting (5)</ulink>
for details.</para>
</listitem>
</varlistentry>
</variablelist>
</listitem>
</varlistentry>