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Allow IPv6 Address as the third argument to TPROXY
- also update the manpages to describe TPROXY Signed-off-by: Tom Eastep <teastep@shorewall.net>
This commit is contained in:
Tom Eastep
parent
aa31e52b96
commit
3f903fe3f1
@ -536,6 +536,7 @@ sub valid_6address( $ ) {
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}
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return 0 if @address > $max;
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return 0 unless $address =~ /^[a-f:]+$/;
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return 0 unless ( @address == $max ) || $address =~ /::/;
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return 0 if $address =~ /:::/ || $address =~ /::.*::/;
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@ -205,7 +205,15 @@ sub process_tc_rule( ) {
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my ( $mark, $designator, $remainder ) = split( /:/, $originalmark, 3 );
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fatal_error "Invalid MARK ($originalmark)" if defined $remainder || ! defined $mark || $mark eq '';
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fatal_error "Invalid MARK ($originalmark)" unless defined $mark || $mark eq '';
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if ( $remainder ) {
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if ( $originalmark =~ /^\w+\(?.*\)$/ ) {
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$mark = $originalmark; # Most likely, an IPv6 address is included in the parameter list
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} else {
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fatal_error "Invalid MARK ($originalmark)";
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}
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}
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my $chain = $globals{MARKING_CHAIN};
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my $target = 'MARK --set-mark';
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@ -376,6 +384,10 @@ sub process_tc_rule( ) {
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$target .= " --on-port $port";
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if ( supplied $ip ) {
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if ( $family == F_IPV6 ) {
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$ip = $1 if $ip =~ /^\[(.+)\]$/ || $ip =~ /^<(.+)>$/;
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}
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validate_address $ip, 1;
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$target .= " --on-ip $ip";
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}
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@ -43,26 +43,11 @@
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<variablelist>
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<varlistentry>
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<term><emphasis role="bold">MARK/CLASSIFY</emphasis> -
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{<emphasis>value</emphasis>|<emphasis>major</emphasis><emphasis
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role="bold">:</emphasis><emphasis>minor</emphasis>|<emphasis
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role="bold">RESTORE</emphasis>[<emphasis
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role="bold">/</emphasis><emphasis>mask</emphasis>]|<emphasis
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role="bold">SAVE</emphasis>[<emphasis
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role="bold">/</emphasis><emphasis>mask</emphasis>]|<emphasis
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role="bold">CONTINUE</emphasis>|<emphasis
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role="bold">SAME</emphasis>|<emphasis
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role="bold">COMMENT</emphasis>|<emphasis
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role="bold">IPMARK</emphasis>[([(<emphasis
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role="bold">src</emphasis>|<emphasis
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role="bold">dst</emphasis>}][,[<emphasis>mask1</emphasis>][,[<emphasis>mask2</emphasis>][,[<emphasis>shift</emphasis>]]]]])]}[<emphasis
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role="bold">:</emphasis>{<emphasis role="bold">C</emphasis>|<emphasis
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role="bold">F</emphasis>|<emphasis role="bold">P</emphasis>|<emphasis
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role="bold">T</emphasis>|<emphasis role="bold">CF</emphasis>|<emphasis
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role="bold">CP</emphasis>|<emphasis
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role="bold">CT</emphasis>|I:CI}]</term>
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<replaceable>mark</replaceable></term>
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<listitem>
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<para>May assume one of the following values.</para>
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<para>Where <replaceable>mark</replaceable> may assume one of the
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following values.</para>
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<orderedlist numeration="arabic">
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<listitem>
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@ -397,6 +382,39 @@ SAME $FW 0.0.0.0/0 tcp 80,443</programlisting>
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above so that all of your <replaceable>minor</replaceable>
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classes will have a value > 256.</para>
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</listitem>
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<listitem>
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<para><emphasis
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role="bold">TPROXY</emphasis>(<replaceable>mark</replaceable>[/<replaceable>mask</replaceable>][,[<replaceable>port</replaceable>][,[<replaceable>address</replaceable>]]])</para>
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<para>Transparently redirects a packet without altering the IP
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header. Requires a local provider to be defined in <ulink
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url="shorewall-providers.html">shorewall-providers</ulink>(5).</para>
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<para>There are three parameters to TPROXY - only the first
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(mark) is required:</para>
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<itemizedlist>
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<listitem>
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<para><replaceable>mark</replaceable> - the MARK value
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corresponding to the local provider in <ulink
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url="shorewall-providers.html">shorewall-providers</ulink>(5).</para>
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</listitem>
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<listitem>
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<para><replaceable>port</replaceable> - the port on which
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the proxy server is listening. If omitted, the original
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destination port.</para>
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</listitem>
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<listitem>
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<para><replaceable>address</replaceable> - a local (to the
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firewall) IP address on which the proxy server is listening.
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If omitted, the IP address of the interface on which the
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request arrives.</para>
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</listitem>
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</itemizedlist>
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</listitem>
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</orderedlist>
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</listitem>
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</varlistentry>
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@ -43,22 +43,11 @@
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<variablelist>
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<varlistentry>
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<term><emphasis role="bold">MARK/CLASSIFY</emphasis> -
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{<emphasis>value</emphasis>|<emphasis>major</emphasis><emphasis
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role="bold">:</emphasis><emphasis>minor</emphasis>|<emphasis
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role="bold">RESTORE</emphasis>[<emphasis
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role="bold">/</emphasis><emphasis>mask</emphasis>]|<emphasis
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role="bold">SAVE</emphasis>[<emphasis
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role="bold">/</emphasis><emphasis>mask</emphasis>]|<emphasis
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role="bold">CONTINUE</emphasis>|<emphasis
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role="bold">COMMENT</emphasis>}[<emphasis
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role="bold">:</emphasis>{<emphasis role="bold">C</emphasis>|<emphasis
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role="bold">F</emphasis>|<emphasis role="bold">P</emphasis>|<emphasis
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role="bold">T</emphasis>|<emphasis role="bold">CF</emphasis>|<emphasis
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role="bold">CP</emphasis>|<emphasis
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role="bold">CT</emphasis>|I|CI}]</term>
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<replaceable>mark</replaceable></term>
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<listitem>
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<para>May assume one of the following values.</para>
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<para><replaceable>mark</replaceable> may assume one of the
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following values.</para>
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<orderedlist numeration="arabic">
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<listitem>
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@ -290,6 +279,39 @@ SAME $FW 0.0.0.0/0 tcp 80,443</programlisting>
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<para>To stop the comment from being attached to further rules,
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simply include COMMENT on a line by itself.</para>
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</listitem>
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<listitem>
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<para><emphasis
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role="bold">TPROXY</emphasis>(<replaceable>mark</replaceable>[/<replaceable>mask</replaceable>][,[<replaceable>port</replaceable>][,[<replaceable>address</replaceable>]]])</para>
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<para>Transparently redirects a packet without altering the IP
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header. Requires a local provider to be defined in <ulink
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url="shorewall6-providers.html">shorewall6-providers</ulink>(5).</para>
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<para>There are three parameters to TPROXY - only the first
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(mark) is required:</para>
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<itemizedlist>
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<listitem>
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<para><replaceable>mark</replaceable> - the MARK value
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corresponding to the local provider in <ulink
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url="shorewall6-providers.html">shorewall6-providers</ulink>(5).</para>
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</listitem>
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<listitem>
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<para><replaceable>port</replaceable> - the port on which
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the proxy server is listening. If omitted, the original
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destination port.</para>
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</listitem>
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<listitem>
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<para><replaceable>address</replaceable> - a local (to the
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firewall) IP address on which the proxy server is listening.
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If omitted, the IP address of the interface on which the
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request arrives.</para>
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</listitem>
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</itemizedlist>
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</listitem>
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</orderedlist>
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</listitem>
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</varlistentry>
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