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1 | #!/usr/bin/perl | |
2 | ############################################################################### | |
3 | # # | |
4 | # IPFire.org - A linux based firewall # | |
5 | # Copyright (C) 2005-2010 IPFire Team # | |
6 | # # | |
7 | # This program is free software: you can redistribute it and/or modify # | |
8 | # it under the terms of the GNU General Public License as published by # | |
9 | # the Free Software Foundation, either version 3 of the License, or # | |
10 | # (at your option) any later version. # | |
11 | # # | |
12 | # This program is distributed in the hope that it will be useful, # | |
13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of # | |
14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # | |
15 | # GNU General Public License for more details. # | |
16 | # # | |
17 | # You should have received a copy of the GNU General Public License # | |
18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. # | |
19 | # # | |
20 | ############################################################################### | |
21 | ||
22 | use strict; | |
23 | ||
24 | # enable only the following on debugging purpose | |
25 | #use warnings; | |
26 | #use CGI::Carp 'fatalsToBrowser'; | |
27 | ||
28 | require '/var/ipfire/general-functions.pl'; | |
29 | require "${General::swroot}/lang.pl"; | |
30 | require "${General::swroot}/header.pl"; | |
31 | require "${General::swroot}/graphs.pl"; | |
32 | ||
33 | my @querry = split(/\?/,$ENV{'QUERY_STRING'}); | |
34 | $querry[0] = '' unless defined $querry[0]; | |
35 | $querry[1] = 'hour' unless defined $querry[1]; | |
36 | ||
37 | if ( $querry[0] ne~ "") { | |
38 | print "Content-type: image/png\n\n"; | |
39 | binmode(STDOUT); | |
40 | &Graphs::updateentropygraph($querry[1]); | |
41 | ||
42 | } else { | |
43 | &Header::showhttpheaders(); | |
44 | &Header::openpage($Lang::tr{'entropy'}, 1, ''); | |
45 | &Header::openbigbox('100%', 'left'); | |
46 | ||
47 | &Header::openbox('100%', 'center', $Lang::tr{'entropy'}); | |
48 | &Graphs::makegraphbox("entropy.cgi", "day", '', 350); | |
49 | &Header::closebox(); | |
50 | ||
51 | # Check for hardware support. | |
52 | my $message; | |
53 | my $message_colour = $Header::colourred; | |
54 | if (&has_hwrng()) { | |
55 | $message = $Lang::tr{'system has hwrng'}; | |
56 | $message_colour = $Header::colourgreen; | |
57 | } elsif (&has_rdrand()) { | |
58 | $message = $Lang::tr{'system has rdrand'}; | |
59 | $message_colour = $Header::colourgreen; | |
60 | } else { | |
61 | $message = $Lang::tr{'no hardware random number generator'}; | |
62 | } | |
63 | ||
64 | &Header::openbox('100%', 'center', $Lang::tr{'hardware support'}); | |
65 | print <<EOF; | |
66 | <p style="color: $message_colour; text-align: center;">$message</p> | |
67 | EOF | |
68 | &Header::closebox(); | |
69 | ||
70 | &Header::closebigbox(); | |
71 | &Header::closepage(); | |
72 | } | |
73 | ||
74 | sub has_hwrng() { | |
75 | return (-c "/dev/hwrng"); | |
76 | } | |
77 | ||
78 | sub has_rdrand() { | |
79 | open(FILE, "/proc/cpuinfo") or return 0; | |
80 | my @cpuinfo = <FILE>; | |
81 | close(FILE); | |
82 | ||
83 | my @result = grep(/rdrand/, @cpuinfo); | |
84 | if (@result) { | |
85 | return 1; | |
86 | } | |
87 | ||
88 | return 0; | |
89 | } |