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https://github.com/vincentmli/bpfire.git
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tcp ddos: add XDP TCP DDoS UI
Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
This commit is contained in:
Vincent Li
283
html/cgi-bin/tcp-ddos.cgi
Executable file
283
html/cgi-bin/tcp-ddos.cgi
Executable file
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#!/usr/bin/perl
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###############################################################################
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# #
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# Copyright (C) 2024-2025 BPFire <vincent.mc.li@gmail.com> #
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# #
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# This program is free software: you can redistribute it and/or modify #
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# it under the terms of the GNU General Public License as published by #
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# the Free Software Foundation, either version 3 of the License, or #
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# (at your option) any later version. #
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# #
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# This program is distributed in the hope that it will be useful, #
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# but WITHOUT ANY WARRANTY; without even the implied warranty of #
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
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# GNU General Public License for more details. #
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# #
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# You should have received a copy of the GNU General Public License #
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# along with this program. If not, see <http://www.gnu.org/licenses/>. #
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# #
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###############################################################################
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use strict;
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# enable only the following on debugging purpose
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#use warnings;
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#use CGI::Carp 'fatalsToBrowser';
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use IO::Socket;
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require '/var/ipfire/general-functions.pl';
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require "${General::swroot}/location-functions.pl";
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require "${General::swroot}/lang.pl";
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require "${General::swroot}/header.pl";
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my %color = ();
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my %mainsettings = ();
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my %ddossettings=();
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my %checked=();
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my $errormessage='';
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my $counter = 0;
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my %tcp_ports=();
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my %udp_ports=();
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my $tcp_portfile = "${General::swroot}/ddos/tcp_ports";
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my $ddossettingfile = "${General::swroot}/ddos/tcp-ddos-settings";
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&get_tcp_ports();
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# Read configuration file.
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&General::readhash("${General::swroot}/main/settings", \%mainsettings);
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&General::readhash("/srv/web/ipfire/html/themes/ipfire/include/colors.txt", \%color);
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&Header::showhttpheaders();
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$ddossettings{'ENABLE_TCP_DDOS'} = 'off';
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$ddossettings{'ACTION'} = '';
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&Header::getcgihash(\%ddossettings);
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if ($ddossettings{'ACTION'} eq $Lang::tr{'save'})
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{
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# Loop through our locations array to prevent from
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# non existing countries or code.
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foreach my $p (values %tcp_ports) {
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# Check if blocking for this country should be enabled/disabled.
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if (exists $ddossettings{$p}) {
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$ddossettings{$p} = "on";
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} else {
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$ddossettings{$p} = "off";
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}
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}
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&General::writehash("$ddossettingfile", \%ddossettings);
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if ($ddossettings{'ENABLE_TCP_DDOS'} eq 'on') {
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&General::system('/usr/bin/touch', "${General::swroot}/ddos/enabletcpddos");
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&General::system('/usr/local/bin/tcpddosctrl', 'start');
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} else {
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&General::system('/usr/local/bin/tcpddosctrl', 'stop');
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unlink "${General::swroot}/ddos/enabletcpddos";
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}
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}
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&Header::openpage($Lang::tr{'xdp tcp ddos config'}, 1, '');
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&Header::openbigbox('100%', 'left', '', $errormessage);
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if ($errormessage) {
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&Header::openbox('100%', 'left', $Lang::tr{'error messages'});
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print "<font class='base' color=red>$errormessage </font>\n";
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&Header::closebox();
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}
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# Read configuration file.
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&General::readhash("$ddossettingfile", \%ddossettings);
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# Checkbox pre-selection.
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my $checked;
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if ($ddossettings{'ENABLE_TCP_DDOS'} eq "on") {
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$checked = "checked='checked'";
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}
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# Print box to enable/disable locationblock.
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print"<form method='POST' action='$ENV{'SCRIPT_NAME'}'>\n";
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&Header::openbox('100%', 'center', $Lang::tr{'xdp tcp ddos'});
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print <<END;
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<table width='95%'>
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<tr>
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<td width='50%' class='base'>$Lang::tr{'xdp tcp ddos enable'}
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<td><input type='checkbox' name='ENABLE_TCP_DDOS' $checked></td>
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<td align='center'><input type='submit' name='ACTION' value='$Lang::tr{'save'}'></td>
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</tr>
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</table>
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END
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&Header::closebox();
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&Header::openbox('100%', 'center', $Lang::tr{'xdp tcp port'});
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print <<END;
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<table width='95%' class='tbl' id="countries">
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<tr>
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<td width='5%' align='center' bgcolor='$color{'color20'}'></td>
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<td width='5%' align='center' bgcolor='$color{'color20'}'>
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<b>$Lang::tr{'port'}</b>
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</td>
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<td with='35%' align='left' bgcolor='$color{'color20'}'>
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<b>$Lang::tr{'service'}</b>
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</td>
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<td width='5%' bgcolor='$color{'color20'}'> </td>
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<td width='5%' align='center' bgcolor='$color{'color20'}'></td>
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<td width='5%' align='center' bgcolor='$color{'color20'}'>
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<b>$Lang::tr{'port'}</b>
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</td>
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<td with='35%' align='left' bgcolor='$color{'color20'}'>
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<b>$Lang::tr{'service'}</b>
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</td>
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</tr>
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END
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my $lines;
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my $lines2;
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my $col;
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# Sort output based on hash value port number
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for my $service ( sort { $tcp_ports{$a} cmp $tcp_ports{$b} }
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keys %tcp_ports )
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{
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my $port = $tcp_ports{$service};
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# Checkbox pre-selection.
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my $checked;
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if ($ddossettings{$port} eq "on") {
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$checked = "checked='checked'";
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}
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# Colour lines.
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if ($lines % 2) {
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$col="bgcolor='$color{'color20'}'";
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} else {
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$col="bgcolor='$color{'color22'}'";
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}
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# Grouping elements.
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my $line_start;
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my $line_end;
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if ($lines2 % 2) {
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# Increase lines (background color by once.
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$lines++;
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# Add empty column in front.
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$line_start="<td $col> </td>";
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# When the line number can be diveded by "2",
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# we are going to close the line.
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$line_end="</tr>";
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} else {
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# When the line number is not divideable by "2",
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# we are starting a new line.
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$line_start="<tr>";
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$line_end;
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}
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print "$line_start<td align='center' $col><input type='checkbox' name='$port' $checked></td>\n";
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print "<td align='center' $col>$port</td>\n";
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print "<td align='left' $col>$service</td>$line_end\n";
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$lines2++;
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}
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print <<END;
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</table>
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END
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&Header::closebox();
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print "</form>\n";
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&Header::closebigbox();
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&Header::closepage();
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sub get_tcp_ports()
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{
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my $fh;
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open($fh, '<', $tcp_portfile) or die "Unable to open file: $!";
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while (my $line = <$fh>) {
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chomp $line;
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next if $line =~ /^\s*#/; # Skip comments
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my ($service, $port) = $line =~ /^(\w+)\s+(\d+)\/tcp/;
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if ($service && $port) {
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$tcp_ports{$service} = $port;
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}
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}
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close($fh);
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}
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sub printxdp()
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{
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# print active SSH logins (grep outpout of "who -s")
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my @output = &General::system_output("/usr/local/bin/tcpddosctrl", "status");
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chomp(@output);
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# list active logins...
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foreach my $line (@output)
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{
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my $interface;
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my $prio;
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my $prog;
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my $mode;
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my $id;
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my $tag;
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my $action;
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#comment next below when having issue
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#next if $line !~ /^red0/;
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#next if $line !~ /^\s=>/;
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next if $line =~ /No XDP program loaded!/;
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if ($line =~ /^red0/) {
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my @arry = split(/\s+/, $line);
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$interface = $arry[0];
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$prio = "N/A";
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$prog = $arry[1];
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$mode = $arry[2];
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$id = $arry[3];
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$tag = $arry[4];
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$action = "N/A";
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} elsif ($line =~ /^\s=>/) {
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my @arry = split(/\s+/, $line);
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$interface = "red0";
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$prio = $arry[2];
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$prog = $arry[3];
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$mode = "N/A";
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$id = $arry[4];
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$tag = $arry[5];
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$action = $arry[6];
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}
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if ($line =~ /^red0/ or $line =~ /^\s=>/) {
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my $table_colour = ($id % 2) ? $color{'color20'} : $color{'color22'};
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print <<END;
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<tr bgcolor='$table_colour'>
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<td>$interface</td>
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<td>$prio</td>
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<td>$prog</td>
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<td>$mode</td>
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<td>$id</td>
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<td>$tag</td>
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<td>$action</td>
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</tr>
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END
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;
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}
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}
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}
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