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<!-- $Id: pcr.php 900 2017-01-06 19:25:47Z kgoldman $ -->
<?php
/* (c) Copyright IBM Corporation 2016. */
/* */
/* All rights reserved. */
/* */
/* Redistribution and use in source and binary forms, with or without */
/* modification, are permitted provided that the following conditions are */
/* met: */
/* */
/* Redistributions of source code must retain the above copyright notice, */
/* this list of conditions and the following disclaimer. */
/* */
/* Redistributions in binary form must reproduce the above copyright */
/* notice, this list of conditions and the following disclaimer in the */
/* documentation and/or other materials provided with the distribution. */
/* */
/* Neither the names of the IBM Corporation nor the names of its */
/* contributors may be used to endorse or promote products derived from */
/* this software without specific prior written permission. */
/* */
/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS */
/* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT */
/* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR */
/* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT */
/* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */
/* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */
/* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, */
/* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY */
/* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */
/* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE */
/* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
/********************************************************************************/
?>
<html>
<head>
<title>TSS 2.0 Demo PCRs
<?php
echo gethostname();
?>
</title>
<link rel="stylesheet" type="text/css" href="demo.css">
</head>
<body>
<div id="header">
<img src="ibm.png" style="float:right;width:200px;height:70px">
<h2>IBM TSS Demo PCRs -
<?php
echo gethostname();
?>
</h2>
</div>
<?php
require '/var/www/html/tpm2/nav.html';
?>
<div id="section">
<?php
require '/var/www/html/tpm2/halg.inc';
if ( $_SERVER['REQUEST_METHOD'] == 'POST' ) {
$command = $_POST['command'];
$ha = $_POST['ha'];
$ic = $_POST['ic'];
$retval == 0;
// parameter checks
if ($retval == 0) {
if (strlen($ha) == 0) {
echo "PCR Index must be specified<br>";
$retval = 1;
}
if ($command == 'PCR Extend') {
if (strlen($ic) == 0) {
echo "PCR Extend data must be specified<br>";
$retval = 1;
}
}
}
// construct the command
if ($retval == 0) {
switch ($command) {
case 'PCR Extend':
$commandStr = "/var/www/html/tpm2/pcrextend -halg $halg";
$commandStr .= " -ha " . $ha;
$commandStr .= " -ic " . $ic;
break;
case 'PCR Reset':
$commandStr = "/var/www/html/tpm2/pcrreset";
$commandStr .= " -ha " . $ha;
break;
default:
echo ("Invalid command $command");
$retval = 1;
break;
}
}
// run the command
if ($retval == 0) {
//echo 'Command string: ' . $commandStr. "<br>"; $retval = 0;
unset($output);
exec ($commandStr, $output, $retval);
if ($retval == 0) {
;
}
else {
echo "<br>" . $commandStr . "<br>";
for ($i = 0 ; $i < count($output) ; $i++) {
echo $output[$i] . "<br>";
}
}
}
}
echo "<h3>PCRs</h3>";
echo "<kbd>\n";
for ($i = '0' ; $i < '24' ; $i++) {
$commandStr = "/var/www/html/tpm2/pcrread -ha $i -halg $halg";
//echo 'Command string: ' . $commandStr. "<br>";
unset($output);
exec ($commandStr, $output, $retval);
printf("PCR %02d: ", $i);
if ($retval == 0) {
echo $output[2] . $output[3] . "<br>\n";
}
else {
printf("pcrread returned: $retval<br>\n");
}
}
echo "</kbd>";
?>
<form method="post" action="pcr.php">
<h3>PCR Extend and Reset</h3>
PCR Index <input type="text" name="ha" value="<?php
if (strlen($ha) != 0) {
echo $ha;
}
else {
echo "16";
}
?>">
<br>
PCR Extend Data <input type="text" name="ic" value="<?php
if (strlen($ic) != 0) {
echo $ic;
}
else {
echo "aaa";
}
?>">
<br>
<input type="submit" name="command" value="PCR Extend">
<br>
<input type="submit" name="command" value="PCR Reset">
<br>
</div>
<?php
require '/var/www/html/tpm2/footer.html';
?>
</body>
</html>
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