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90 lines
3.1 KiB
Perl
Executable File
90 lines
3.1 KiB
Perl
Executable File
#!/usr/bin/perl
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###############################################################################
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# #
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# IPFire.org - A linux based firewall #
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# Copyright (C) 2005-2010 IPFire Team #
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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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require '/var/ipfire/general-functions.pl';
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require "${General::swroot}/lang.pl";
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require "${General::swroot}/header.pl";
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require "${General::swroot}/graphs.pl";
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my @querry = split(/\?/,$ENV{'QUERY_STRING'});
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$querry[0] = '' unless defined $querry[0];
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$querry[1] = 'hour' unless defined $querry[1];
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if ( $querry[0] ne~ "") {
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print "Content-type: image/png\n\n";
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binmode(STDOUT);
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&Graphs::updateentropygraph($querry[1]);
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} else {
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&Header::showhttpheaders();
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&Header::openpage($Lang::tr{'entropy'}, 1, '');
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&Header::openbigbox('100%', 'left');
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&Header::openbox('100%', 'center', $Lang::tr{'entropy'});
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&Graphs::makegraphbox("entropy.cgi", "day", '', 350);
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&Header::closebox();
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# Check for hardware support.
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my $message;
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my $message_colour = $Header::colourred;
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if (&has_hwrng()) {
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$message = $Lang::tr{'system has hwrng'};
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$message_colour = $Header::colourgreen;
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} elsif (&has_rdrand()) {
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$message = $Lang::tr{'system has rdrand'};
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$message_colour = $Header::colourgreen;
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} else {
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$message = $Lang::tr{'no hardware random number generator'};
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}
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&Header::openbox('100%', 'center', $Lang::tr{'hardware support'});
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print <<EOF;
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<p style="color: $message_colour; text-align: center;">$message</p>
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EOF
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&Header::closebox();
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&Header::closebigbox();
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&Header::closepage();
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}
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sub has_hwrng() {
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return (-c "/dev/hwrng");
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}
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sub has_rdrand() {
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open(FILE, "/proc/cpuinfo") or return 0;
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my @cpuinfo = <FILE>;
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close(FILE);
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my @result = grep(/rdrand/, @cpuinfo);
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if (@result) {
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return 1;
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}
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return 0;
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}
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