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Use LF as EOL consistently.

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Simon Josefsson 2013-04-17 17:24:50 +02:00
parent ce460ca737
commit 276616d871
5 changed files with 1007 additions and 1005 deletions
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2
NEWS
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@ -2,6 +2,8 @@
* Removed initial empty line from output for all commands.
* Use LF as EOL consistently.
* Updated release procedure.
* Version 2.22 (released 2013-03-12)

544
ykval-common.php
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@ -1,272 +1,272 @@
<?php
# Copyright (c) 2009-2013 Yubico AB
# 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.
#
# 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
# OWNER 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.
define('S_OK', 'OK');
define('S_BAD_OTP', 'BAD_OTP');
define('S_REPLAYED_OTP', 'REPLAYED_OTP');
define('S_DELAYED_OTP', 'DELAYED_OTP');
define('S_BAD_SIGNATURE', 'BAD_SIGNATURE');
define('S_MISSING_PARAMETER', 'MISSING_PARAMETER');
define('S_NO_SUCH_CLIENT', 'NO_SUCH_CLIENT');
define('S_OPERATION_NOT_ALLOWED', 'OPERATION_NOT_ALLOWED');
define('S_BACKEND_ERROR', 'BACKEND_ERROR');
define('S_NOT_ENOUGH_ANSWERS', 'NOT_ENOUGH_ANSWERS');
define('S_REPLAYED_REQUEST', 'REPLAYED_REQUEST');
define('TS_SEC', 1/8);
define('TS_REL_TOLERANCE', 0.3);
define('TS_ABS_TOLERANCE', 20);
define('TOKEN_LEN', 32);
define('OTP_MAX_LEN', 48); // TOKEN_LEN plus public identity of 0..16
function logdie ($logger, $str)
{
$logger->log(LOG_INFO, $str);
die($str . "\n");
}
function unescape($s) {
return str_replace('\\', "", $s);
}
function getHttpVal($key, $defaultVal) {
$val = $defaultVal;
if (array_key_exists($key, $_GET)) {
$val = $_GET[$key];
} else if (array_key_exists($key, $_POST)) {
$val = $_POST[$key];
}
$v = unescape(trim($val));
return $v;
}
function log_format() {
$str = "";
foreach (func_get_args() as $msg)
{
if (is_array($msg)) {
foreach($msg as $key => $value){
$str .= "$key=$value ";
}
} else {
$str .= $msg . " ";
}
}
return $str;
}
// Return eg. 2008-11-21T06:11:55Z0711
//
function getUTCTimeStamp() {
date_default_timezone_set('UTC');
$tiny = substr(microtime(false), 2, 3);
return date('Y-m-d\TH:i:s\Z0', time()) . $tiny;
}
# NOTE: When we evolve to using general DB-interface, this functinality
# should be moved there.
function DbTimeToUnix($db_time)
{
$unix=strptime($db_time, '%F %H:%M:%S');
return mktime($unix[tm_hour], $unix[tm_min], $unix[tm_sec], $unix[tm_mon]+1, $unix[tm_mday], $unix[tm_year]+1900);
}
function UnixToDbTime($unix)
{
return date('Y-m-d H:i:s', $unix);
}
// Sign a http query string in the array of key-value pairs
// return b64 encoded hmac hash
function sign($a, $apiKey, $logger) {
ksort($a);
$qs = urldecode(http_build_query($a));
// the TRUE at the end states we want the raw value, not hexadecimal form
$hmac = hash_hmac('sha1', utf8_encode($qs), $apiKey, true);
$hmac = base64_encode($hmac);
$logger->log(LOG_DEBUG, 'SIGN: ' . $qs . ' H=' . $hmac);
return $hmac;
} // sign an array of query string
function hex2b64 ($hex_str) {
$bin = pack("H*", $hex_str);
return base64_encode($bin);
}
function modhex2b64 ($modhex_str) {
$hex_str = strtr ($modhex_str, "cbdefghijklnrtuv", "0123456789abcdef");
return hex2b64($hex_str);
}
// This function takes a list of URLs. It will return the content of
// the first successfully retrieved URL, whose content matches ^OK.
// The request are sent asynchronously. Some of the URLs can fail
// with unknown host, connection errors, or network timeout, but as
// long as one of the URLs given work, data will be returned. If all
// URLs fail, data from some URL that did not match parameter $match
// (defaults to ^OK) is returned, or if all URLs failed, false.
function retrieveURLasync ($ident, $urls, $logger, $ans_req=1, $match="^OK", $returl=False, $timeout=10) {
$mh = curl_multi_init();
$ch = array();
foreach ($urls as $id => $url) {
$handle = curl_init();
$logger->log(LOG_DEBUG, $ident . " adding URL : " . $url);
curl_setopt($handle, CURLOPT_URL, $url);
curl_setopt($handle, CURLOPT_USERAGENT, "YK-VAL");
curl_setopt($handle, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($handle, CURLOPT_FAILONERROR, true);
curl_setopt($handle, CURLOPT_TIMEOUT, $timeout);
curl_multi_add_handle($mh, $handle);
$ch[$handle] = $handle;
}
$str = false;
$ans_count = 0;
$ans_arr = array();
do {
while (($mrc = curl_multi_exec($mh, $active)) == CURLM_CALL_MULTI_PERFORM)
;
while ($info = curl_multi_info_read($mh)) {
$logger->log(LOG_DEBUG, $ident . " curl multi info : ", $info);
if ($info['result'] == CURLE_OK) {
$str = curl_multi_getcontent($info['handle']);
$logger->log(LOG_DEBUG, $ident . " curl multi content : " . $str);
if (preg_match("/".$match."/", $str)) {
$logger->log(LOG_DEBUG, $ident . " response matches " . $match);
$error = curl_error ($info['handle']);
$errno = curl_errno ($info['handle']);
$cinfo = curl_getinfo ($info['handle']);
$logger->log(LOG_DEBUG, $ident . " errno/error: " . $errno . "/" . $error, $cinfo);
$ans_count++;
if ($returl) $ans_arr[]="url=" . $cinfo['url'] . "\n" . $str;
else $ans_arr[]=$str;
}
if ($ans_count >= $ans_req) {
foreach ($ch as $h) {
curl_multi_remove_handle ($mh, $h);
curl_close ($h);
}
curl_multi_close ($mh);
return $ans_arr;
}
curl_multi_remove_handle ($mh, $info['handle']);
curl_close ($info['handle']);
unset ($ch[$info['handle']]);
}
curl_multi_select ($mh);
}
} while($active);
foreach ($ch as $h) {
curl_multi_remove_handle ($mh, $h);
curl_close ($h);
}
curl_multi_close ($mh);
if ($ans_count>0) return $ans_arr;
return $str;
}
function retrieveURLsimple ($url, $match="^OK") {
foreach (file($url) as $line) {
if (preg_match("/".$match."/", $line)) {
return $line;
}
}
return false;
}
// $otp: A yubikey OTP
function KSMdecryptOTP($urls, $logger) {
$ret = array();
if (!is_array($urls)) {
$response = retrieveURLsimple ($urls);
} elseif (count($urls) == 1) {
$response = retrieveURLsimple ($urls[0]);
} else {
$response = retrieveURLasync ("YK-KSM", $urls, $logger, $ans_req=1, $match="^OK", $returl=False, $timeout=10);
if (is_array($response)) {
$response = $response[0];
}
}
if ($response) {
$logger->log(LOG_DEBUG, log_format("YK-KSM response: ", $response));
}
if (sscanf ($response,
"OK counter=%04x low=%04x high=%02x use=%02x",
$ret["session_counter"], $ret["low"], $ret["high"],
$ret["session_use"]) != 4) {
return false;
}
return $ret;
} // End decryptOTP
function sendResp($status, $logger, $apiKey = '', $extra = null) {
if ($status == null) {
$status = S_BACKEND_ERROR;
}
$a['status'] = $status;
$a['t'] = getUTCTimeStamp();
if ($extra){
foreach ($extra as $param => $value) $a[$param] = $value;
}
$h = sign($a, $apiKey, $logger);
$str = "h=" . $h . "\r\n";
$str .= "t=" . ($a['t']) . "\r\n";
if ($extra){
foreach ($extra as $param => $value) {
$str .= $param . "=" . $value . "\r\n";
}
}
$str .= "status=" . ($a['status']) . "\r\n";
$str .= "\r\n";
$logger->log(LOG_INFO, "Response: " . $str .
" (at " . date("c") . " " . microtime() . ")");
echo $str;
}
?>
<?php
# Copyright (c) 2009-2013 Yubico AB
# 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.
#
# 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
# OWNER 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.
define('S_OK', 'OK');
define('S_BAD_OTP', 'BAD_OTP');
define('S_REPLAYED_OTP', 'REPLAYED_OTP');
define('S_DELAYED_OTP', 'DELAYED_OTP');
define('S_BAD_SIGNATURE', 'BAD_SIGNATURE');
define('S_MISSING_PARAMETER', 'MISSING_PARAMETER');
define('S_NO_SUCH_CLIENT', 'NO_SUCH_CLIENT');
define('S_OPERATION_NOT_ALLOWED', 'OPERATION_NOT_ALLOWED');
define('S_BACKEND_ERROR', 'BACKEND_ERROR');
define('S_NOT_ENOUGH_ANSWERS', 'NOT_ENOUGH_ANSWERS');
define('S_REPLAYED_REQUEST', 'REPLAYED_REQUEST');
define('TS_SEC', 1/8);
define('TS_REL_TOLERANCE', 0.3);
define('TS_ABS_TOLERANCE', 20);
define('TOKEN_LEN', 32);
define('OTP_MAX_LEN', 48); // TOKEN_LEN plus public identity of 0..16
function logdie ($logger, $str)
{
$logger->log(LOG_INFO, $str);
die($str . "\n");
}
function unescape($s) {
return str_replace('\\', "", $s);
}
function getHttpVal($key, $defaultVal) {
$val = $defaultVal;
if (array_key_exists($key, $_GET)) {
$val = $_GET[$key];
} else if (array_key_exists($key, $_POST)) {
$val = $_POST[$key];
}
$v = unescape(trim($val));
return $v;
}
function log_format() {
$str = "";
foreach (func_get_args() as $msg)
{
if (is_array($msg)) {
foreach($msg as $key => $value){
$str .= "$key=$value ";
}
} else {
$str .= $msg . " ";
}
}
return $str;
}
// Return eg. 2008-11-21T06:11:55Z0711
//
function getUTCTimeStamp() {
date_default_timezone_set('UTC');
$tiny = substr(microtime(false), 2, 3);
return date('Y-m-d\TH:i:s\Z0', time()) . $tiny;
}
# NOTE: When we evolve to using general DB-interface, this functinality
# should be moved there.
function DbTimeToUnix($db_time)
{
$unix=strptime($db_time, '%F %H:%M:%S');
return mktime($unix[tm_hour], $unix[tm_min], $unix[tm_sec], $unix[tm_mon]+1, $unix[tm_mday], $unix[tm_year]+1900);
}
function UnixToDbTime($unix)
{
return date('Y-m-d H:i:s', $unix);
}
// Sign a http query string in the array of key-value pairs
// return b64 encoded hmac hash
function sign($a, $apiKey, $logger) {
ksort($a);
$qs = urldecode(http_build_query($a));
// the TRUE at the end states we want the raw value, not hexadecimal form
$hmac = hash_hmac('sha1', utf8_encode($qs), $apiKey, true);
$hmac = base64_encode($hmac);
$logger->log(LOG_DEBUG, 'SIGN: ' . $qs . ' H=' . $hmac);
return $hmac;
} // sign an array of query string
function hex2b64 ($hex_str) {
$bin = pack("H*", $hex_str);
return base64_encode($bin);
}
function modhex2b64 ($modhex_str) {
$hex_str = strtr ($modhex_str, "cbdefghijklnrtuv", "0123456789abcdef");
return hex2b64($hex_str);
}
// This function takes a list of URLs. It will return the content of
// the first successfully retrieved URL, whose content matches ^OK.
// The request are sent asynchronously. Some of the URLs can fail
// with unknown host, connection errors, or network timeout, but as
// long as one of the URLs given work, data will be returned. If all
// URLs fail, data from some URL that did not match parameter $match
// (defaults to ^OK) is returned, or if all URLs failed, false.
function retrieveURLasync ($ident, $urls, $logger, $ans_req=1, $match="^OK", $returl=False, $timeout=10) {
$mh = curl_multi_init();
$ch = array();
foreach ($urls as $id => $url) {
$handle = curl_init();
$logger->log(LOG_DEBUG, $ident . " adding URL : " . $url);
curl_setopt($handle, CURLOPT_URL, $url);
curl_setopt($handle, CURLOPT_USERAGENT, "YK-VAL");
curl_setopt($handle, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($handle, CURLOPT_FAILONERROR, true);
curl_setopt($handle, CURLOPT_TIMEOUT, $timeout);
curl_multi_add_handle($mh, $handle);
$ch[$handle] = $handle;
}
$str = false;
$ans_count = 0;
$ans_arr = array();
do {
while (($mrc = curl_multi_exec($mh, $active)) == CURLM_CALL_MULTI_PERFORM)
;
while ($info = curl_multi_info_read($mh)) {
$logger->log(LOG_DEBUG, $ident . " curl multi info : ", $info);
if ($info['result'] == CURLE_OK) {
$str = curl_multi_getcontent($info['handle']);
$logger->log(LOG_DEBUG, $ident . " curl multi content : " . $str);
if (preg_match("/".$match."/", $str)) {
$logger->log(LOG_DEBUG, $ident . " response matches " . $match);
$error = curl_error ($info['handle']);
$errno = curl_errno ($info['handle']);
$cinfo = curl_getinfo ($info['handle']);
$logger->log(LOG_DEBUG, $ident . " errno/error: " . $errno . "/" . $error, $cinfo);
$ans_count++;
if ($returl) $ans_arr[]="url=" . $cinfo['url'] . "\n" . $str;
else $ans_arr[]=$str;
}
if ($ans_count >= $ans_req) {
foreach ($ch as $h) {
curl_multi_remove_handle ($mh, $h);
curl_close ($h);
}
curl_multi_close ($mh);
return $ans_arr;
}
curl_multi_remove_handle ($mh, $info['handle']);
curl_close ($info['handle']);
unset ($ch[$info['handle']]);
}
curl_multi_select ($mh);
}
} while($active);
foreach ($ch as $h) {
curl_multi_remove_handle ($mh, $h);
curl_close ($h);
}
curl_multi_close ($mh);
if ($ans_count>0) return $ans_arr;
return $str;
}
function retrieveURLsimple ($url, $match="^OK") {
foreach (file($url) as $line) {
if (preg_match("/".$match."/", $line)) {
return $line;
}
}
return false;
}
// $otp: A yubikey OTP
function KSMdecryptOTP($urls, $logger) {
$ret = array();
if (!is_array($urls)) {
$response = retrieveURLsimple ($urls);
} elseif (count($urls) == 1) {
$response = retrieveURLsimple ($urls[0]);
} else {
$response = retrieveURLasync ("YK-KSM", $urls, $logger, $ans_req=1, $match="^OK", $returl=False, $timeout=10);
if (is_array($response)) {
$response = $response[0];
}
}
if ($response) {
$logger->log(LOG_DEBUG, log_format("YK-KSM response: ", $response));
}
if (sscanf ($response,
"OK counter=%04x low=%04x high=%02x use=%02x",
$ret["session_counter"], $ret["low"], $ret["high"],
$ret["session_use"]) != 4) {
return false;
}
return $ret;
} // End decryptOTP
function sendResp($status, $logger, $apiKey = '', $extra = null) {
if ($status == null) {
$status = S_BACKEND_ERROR;
}
$a['status'] = $status;
$a['t'] = getUTCTimeStamp();
if ($extra){
foreach ($extra as $param => $value) $a[$param] = $value;
}
$h = sign($a, $apiKey, $logger);
$str = "h=" . $h . "\r\n";
$str .= "t=" . ($a['t']) . "\r\n";
if ($extra){
foreach ($extra as $param => $value) {
$str .= $param . "=" . $value . "\r\n";
}
}
$str .= "status=" . ($a['status']) . "\r\n";
$str .= "\r\n";
$logger->log(LOG_INFO, "Response: " . $str .
" (at " . date("c") . " " . microtime() . ")");
echo $str;
}
?>

202
ykval-config.php
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@ -1,101 +1,101 @@
<?php # -*- php -*-
# Copyright (c) 2009-2013 Yubico AB
# 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.
#
# 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
# OWNER 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.
//ykval will use the configuration stored in /etc/yubico/val/config-db.php, if that file exists. If it does not exist, the below values will be used.
if(!include '/etc/yubico/val/config-db.php') {
$dbuser='ykval_verifier';
$dbpass='yourpassword';
$basepath='';
$dbname='ykval';
$dbserver='';
$dbport='';
$dbtype='mysql';
}
# For the validation interface.
$baseParams = array ();
$baseParams['__YKVAL_DB_DSN__'] = "$dbtype:dbname=$dbname;host=127.0.0.1"; # "oci:oracledb" for Oracle DB (with OCI library)
$baseParams['__YKVAL_DB_USER__'] = $dbuser;
$baseParams['__YKVAL_DB_PW__'] = $dbpass;
$baseParams['__YKVAL_DB_OPTIONS__'] = array(PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION);
# For the validation server sync
$baseParams['__YKVAL_SYNC_POOL__'] = array(/*"http://api2.example.com/wsapi/2.0/sync",*/
/*"http://api3.example.com/wsapi/2.0/sync",*/
/* "http://api4.example.com/wsapi/2.0/sync"*/);
# An array of IP addresses allowed to issue sync requests
# NOTE: You must use IP addresses here.
$baseParams['__YKVAL_ALLOWED_SYNC_POOL__'] = array(/*"1.2.3.4",*/
/*"2.3.4.5",*/
/*"3.4.5.6"*/);
# An array of IP addresses allowed to issue YubiKey activation/deactivation
# requests through ykval-revoke.php. NOTE: You must use IP addresses here.
$baseParams['__YKREV_IPS__'] = array(/*"127.0.0.1"*/);
# An array of IP addresses allowed to issue database resync requests through
# ykval-resync.php. NOTE: You must use IP addresses here.
#$baseParams['__YKRESYNC_IPS__'] = array("127.0.0.1");
#Use the same as for issuing sync requests:
$baseParams['__YKRESYNC_IPS__'] = $baseParams['__YKVAL_ALLOWED_SYNC_POOL__'];
# Specify how often the sync daemon awakens
$baseParams['__YKVAL_SYNC_INTERVAL__'] = 10;
# Specify how long the sync daemon will wait for response
$baseParams['__YKVAL_SYNC_RESYNC_TIMEOUT__'] = 30;
# Specify how old entries in the database should be considered aborted attempts
$baseParams['__YKVAL_SYNC_OLD_LIMIT__'] = 10;
# These are settings for the validation server.
$baseParams['__YKVAL_SYNC_FAST_LEVEL__'] = 1;
$baseParams['__YKVAL_SYNC_SECURE_LEVEL__'] = 40;
$baseParams['__YKVAL_SYNC_DEFAULT_LEVEL__'] = 60;
$baseParams['__YKVAL_SYNC_DEFAULT_TIMEOUT__'] = 1;
// otp2ksmurls: Return array of YK-KSM URLs for decrypting OTP for
// CLIENT. The URLs must be fully qualified, i.e., contain the OTP
// itself.
function otp2ksmurls ($otp, $client) {
//if ($client == 42) {
// return array("http://another-ykkms.example.com/wsapi/decrypt?otp=$otp");
//}
//if (preg_match ("/^dteffujehknh/", $otp)) {
// return array("http://different-ykkms.example.com/wsapi/decrypt?otp=$otp");
//}
return array(
//"http://ykkms1.example.com/wsapi/decrypt?otp=$otp",
//"http://ykkms2.example.com/wsapi/decrypt?otp=$otp",
"http://127.0.0.1/wsapi/decrypt?otp=$otp"
);
}
?>
<?php # -*- php -*-
# Copyright (c) 2009-2013 Yubico AB
# 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.
#
# 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
# OWNER 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.
//ykval will use the configuration stored in /etc/yubico/val/config-db.php, if that file exists. If it does not exist, the below values will be used.
if(!include '/etc/yubico/val/config-db.php') {
$dbuser='ykval_verifier';
$dbpass='yourpassword';
$basepath='';
$dbname='ykval';
$dbserver='';
$dbport='';
$dbtype='mysql';
}
# For the validation interface.
$baseParams = array ();
$baseParams['__YKVAL_DB_DSN__'] = "$dbtype:dbname=$dbname;host=127.0.0.1"; # "oci:oracledb" for Oracle DB (with OCI library)
$baseParams['__YKVAL_DB_USER__'] = $dbuser;
$baseParams['__YKVAL_DB_PW__'] = $dbpass;
$baseParams['__YKVAL_DB_OPTIONS__'] = array(PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION);
# For the validation server sync
$baseParams['__YKVAL_SYNC_POOL__'] = array(/*"http://api2.example.com/wsapi/2.0/sync",*/
/*"http://api3.example.com/wsapi/2.0/sync",*/
/* "http://api4.example.com/wsapi/2.0/sync"*/);
# An array of IP addresses allowed to issue sync requests
# NOTE: You must use IP addresses here.
$baseParams['__YKVAL_ALLOWED_SYNC_POOL__'] = array(/*"1.2.3.4",*/
/*"2.3.4.5",*/
/*"3.4.5.6"*/);
# An array of IP addresses allowed to issue YubiKey activation/deactivation
# requests through ykval-revoke.php. NOTE: You must use IP addresses here.
$baseParams['__YKREV_IPS__'] = array(/*"127.0.0.1"*/);
# An array of IP addresses allowed to issue database resync requests through
# ykval-resync.php. NOTE: You must use IP addresses here.
#$baseParams['__YKRESYNC_IPS__'] = array("127.0.0.1");
#Use the same as for issuing sync requests:
$baseParams['__YKRESYNC_IPS__'] = $baseParams['__YKVAL_ALLOWED_SYNC_POOL__'];
# Specify how often the sync daemon awakens
$baseParams['__YKVAL_SYNC_INTERVAL__'] = 10;
# Specify how long the sync daemon will wait for response
$baseParams['__YKVAL_SYNC_RESYNC_TIMEOUT__'] = 30;
# Specify how old entries in the database should be considered aborted attempts
$baseParams['__YKVAL_SYNC_OLD_LIMIT__'] = 10;
# These are settings for the validation server.
$baseParams['__YKVAL_SYNC_FAST_LEVEL__'] = 1;
$baseParams['__YKVAL_SYNC_SECURE_LEVEL__'] = 40;
$baseParams['__YKVAL_SYNC_DEFAULT_LEVEL__'] = 60;
$baseParams['__YKVAL_SYNC_DEFAULT_TIMEOUT__'] = 1;
// otp2ksmurls: Return array of YK-KSM URLs for decrypting OTP for
// CLIENT. The URLs must be fully qualified, i.e., contain the OTP
// itself.
function otp2ksmurls ($otp, $client) {
//if ($client == 42) {
// return array("http://another-ykkms.example.com/wsapi/decrypt?otp=$otp");
//}
//if (preg_match ("/^dteffujehknh/", $otp)) {
// return array("http://different-ykkms.example.com/wsapi/decrypt?otp=$otp");
//}
return array(
//"http://ykkms1.example.com/wsapi/decrypt?otp=$otp",
//"http://ykkms2.example.com/wsapi/decrypt?otp=$otp",
"http://127.0.0.1/wsapi/decrypt?otp=$otp"
);
}
?>

420
ykval-sync.php
View File

@ -1,210 +1,210 @@
<?php
# Copyright (c) 2009-2013 Yubico AB
# 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.
#
# 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
# OWNER 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.
require_once 'ykval-common.php';
require_once 'ykval-config.php';
require_once 'ykval-synclib.php';
$apiKey = '';
header("content-type: text/plain");
$myLog = new Log('ykval-sync');
$myLog->addField('ip', $_SERVER['REMOTE_ADDR']);
if(empty($_SERVER['QUERY_STRING'])) {
sendResp(S_MISSING_PARAMETER, $myLog, $apiKey);
exit;
}
$myLog->log(LOG_INFO, "Request: " . $_SERVER['QUERY_STRING']);
$sync = new SyncLib('ykval-sync:synclib');
$sync->addField('ip', $_SERVER['REMOTE_ADDR']);
if (! $sync->isConnected()) {
sendResp(S_BACKEND_ERROR, $myLog, $apiKey);
exit;
}
#
# Verify that request comes from valid server
#
$myLog->log(LOG_INFO, 'Received request from ' . $_SERVER['REMOTE_ADDR']);
$allowed = in_array($_SERVER['REMOTE_ADDR'], $baseParams['__YKVAL_ALLOWED_SYNC_POOL__']);
if (!$allowed) {
$myLog->log(LOG_NOTICE, 'Operation not allowed from IP ' . $_SERVER['REMOTE_ADDR']);
$myLog->log(LOG_DEBUG, 'Remote IP ' . $_SERVER['REMOTE_ADDR'] . ' not listed in allowed sync pool : ' .
implode(', ', $baseParams['__YKVAL_ALLOWED_SYNC_POOL__']));
sendResp(S_OPERATION_NOT_ALLOWED, $myLog, $apiKey);
exit;
}
#
# Define requirements on protocol
#
$syncParams=array('modified'=>Null,
'otp'=>Null,
'nonce'=>Null,
'yk_publicname'=>Null,
'yk_counter'=>Null,
'yk_use'=>Null,
'yk_high'=>Null,
'yk_low'=>Null);
#
# Extract values from HTTP request
#
$tmp_log = "Received ";
foreach ($syncParams as $param=>$value) {
$value = getHttpVal($param, Null);
if ($value==Null) {
$myLog->log(LOG_NOTICE, "Received request with parameter[s] (" . $param . ") missing value");
sendResp(S_MISSING_PARAMETER, $myLog, $apiKey);
exit;
}
$syncParams[$param]=$value;
$tmp_log .= "$param=$value ";
}
$myLog->log(LOG_INFO, $tmp_log);
#
# At this point we should have the otp so let's add it to the logging module
#
$myLog->addField('otp', $syncParams['otp']);
$sync->addField('otp', $syncParams['otp']);
#
# Verify correctness of input parameters
#
foreach (array('modified') as $param) {
if (preg_match("/^[0-9]+$/", $syncParams[$param])==0) {
$myLog->log(LOG_NOTICE, 'Input parameters ' . $param . ' not correct');
sendResp(S_MISSING_PARAMETER, $myLog, $apiKey);
exit;
}
}
foreach (array('yk_counter', 'yk_use', 'yk_high', 'yk_low') as $param) {
if (preg_match("/^(-1|[0-9]+)$/", $syncParams[$param])==0) {
$myLog->log(LOG_NOTICE, 'Input parameters ' . $param . ' not correct');
sendResp(S_MISSING_PARAMETER, $myLog, $apiKey);
exit;
}
}
#
# Get local counter data
#
$yk_publicname = $syncParams['yk_publicname'];
$localParams = $sync->getLocalParams($yk_publicname);
if (!$localParams) {
$myLog->log(LOG_NOTICE, 'Invalid Yubikey ' . $yk_publicname);
sendResp(S_BACKEND_ERROR, $myLog, $apiKey);
exit;
}
/* Conditional update local database */
$sync->updateDbCounters($syncParams);
$myLog->log(LOG_DEBUG, 'Local params ' , $localParams);
$myLog->log(LOG_DEBUG, 'Sync request params ' , $syncParams);
#
# Compare sync and local counters and generate warnings according to
#
# https://github.com/Yubico/yubikey-val/wiki/ServerReplicationProtocol
#
if ($sync->countersHigherThan($localParams, $syncParams)) {
$myLog->log(LOG_WARNING, 'Remote server out of sync.');
}
if ($sync->countersEqual($localParams, $syncParams)) {
if ($syncParams['modified']==$localParams['modified'] &&
$syncParams['nonce']==$localParams['nonce']) {
/* This is not an error. When the remote server received an OTP to verify, it would
* have sent out sync requests immediately. When the required number of responses had
* been received, the current implementation discards all additional responses (to
* return the result to the client as soon as possible). If our response sent last
* time was discarded, we will end up here when the background ykval-queue processes
* the sync request again.
*/
$myLog->log(LOG_INFO, 'Sync request unnecessarily sent');
}
if ($syncParams['modified']!=$localParams['modified'] &&
$syncParams['nonce']==$localParams['nonce']) {
$deltaModified = $syncParams['modified'] - $localParams['modified'];
if($deltaModified < -1 || $deltaModified > 1) {
$myLog->log(LOG_WARNING, 'We might have a replay. 2 events at different times have generated the same counters. The time difference is ' . $deltaModified . ' seconds');
}
}
if ($syncParams['nonce']!=$localParams['nonce']) {
$myLog->log(LOG_WARNING, 'Remote server has received a request to validate an already validated OTP ');
}
}
if ($localParams['active'] != 1) {
/* The remote server has accepted an OTP from a YubiKey which we would not.
* We still needed to update our counters with the counters from the OTP though.
*/
$myLog->log(LOG_WARNING, 'Received sync-request for de-activated Yubikey ' . $yk_publicname .
' - check database synchronization!!!');
sendResp(S_BAD_OTP, $myLog, $apiKey);
exit;
}
$extra=array('modified'=>$localParams['modified'],
'nonce'=>$localParams['nonce'],
'yk_publicname'=>$yk_publicname,
'yk_counter'=>$localParams['yk_counter'],
'yk_use'=>$localParams['yk_use'],
'yk_high'=>$localParams['yk_high'],
'yk_low'=>$localParams['yk_low']);
sendResp(S_OK, $myLog, $apiKey, $extra);
?>
<?php
# Copyright (c) 2009-2013 Yubico AB
# 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.
#
# 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
# OWNER 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.
require_once 'ykval-common.php';
require_once 'ykval-config.php';
require_once 'ykval-synclib.php';
$apiKey = '';
header("content-type: text/plain");
$myLog = new Log('ykval-sync');
$myLog->addField('ip', $_SERVER['REMOTE_ADDR']);
if(empty($_SERVER['QUERY_STRING'])) {
sendResp(S_MISSING_PARAMETER, $myLog, $apiKey);
exit;
}
$myLog->log(LOG_INFO, "Request: " . $_SERVER['QUERY_STRING']);
$sync = new SyncLib('ykval-sync:synclib');
$sync->addField('ip', $_SERVER['REMOTE_ADDR']);
if (! $sync->isConnected()) {
sendResp(S_BACKEND_ERROR, $myLog, $apiKey);
exit;
}
#
# Verify that request comes from valid server
#
$myLog->log(LOG_INFO, 'Received request from ' . $_SERVER['REMOTE_ADDR']);
$allowed = in_array($_SERVER['REMOTE_ADDR'], $baseParams['__YKVAL_ALLOWED_SYNC_POOL__']);
if (!$allowed) {
$myLog->log(LOG_NOTICE, 'Operation not allowed from IP ' . $_SERVER['REMOTE_ADDR']);
$myLog->log(LOG_DEBUG, 'Remote IP ' . $_SERVER['REMOTE_ADDR'] . ' not listed in allowed sync pool : ' .
implode(', ', $baseParams['__YKVAL_ALLOWED_SYNC_POOL__']));
sendResp(S_OPERATION_NOT_ALLOWED, $myLog, $apiKey);
exit;
}
#
# Define requirements on protocol
#
$syncParams=array('modified'=>Null,
'otp'=>Null,
'nonce'=>Null,
'yk_publicname'=>Null,
'yk_counter'=>Null,
'yk_use'=>Null,
'yk_high'=>Null,
'yk_low'=>Null);
#
# Extract values from HTTP request
#
$tmp_log = "Received ";
foreach ($syncParams as $param=>$value) {
$value = getHttpVal($param, Null);
if ($value==Null) {
$myLog->log(LOG_NOTICE, "Received request with parameter[s] (" . $param . ") missing value");
sendResp(S_MISSING_PARAMETER, $myLog, $apiKey);
exit;
}
$syncParams[$param]=$value;
$tmp_log .= "$param=$value ";
}
$myLog->log(LOG_INFO, $tmp_log);
#
# At this point we should have the otp so let's add it to the logging module
#
$myLog->addField('otp', $syncParams['otp']);
$sync->addField('otp', $syncParams['otp']);
#
# Verify correctness of input parameters
#
foreach (array('modified') as $param) {
if (preg_match("/^[0-9]+$/", $syncParams[$param])==0) {
$myLog->log(LOG_NOTICE, 'Input parameters ' . $param . ' not correct');
sendResp(S_MISSING_PARAMETER, $myLog, $apiKey);
exit;
}
}
foreach (array('yk_counter', 'yk_use', 'yk_high', 'yk_low') as $param) {
if (preg_match("/^(-1|[0-9]+)$/", $syncParams[$param])==0) {
$myLog->log(LOG_NOTICE, 'Input parameters ' . $param . ' not correct');
sendResp(S_MISSING_PARAMETER, $myLog, $apiKey);
exit;
}
}
#
# Get local counter data
#
$yk_publicname = $syncParams['yk_publicname'];
$localParams = $sync->getLocalParams($yk_publicname);
if (!$localParams) {
$myLog->log(LOG_NOTICE, 'Invalid Yubikey ' . $yk_publicname);
sendResp(S_BACKEND_ERROR, $myLog, $apiKey);
exit;
}
/* Conditional update local database */
$sync->updateDbCounters($syncParams);
$myLog->log(LOG_DEBUG, 'Local params ' , $localParams);
$myLog->log(LOG_DEBUG, 'Sync request params ' , $syncParams);
#
# Compare sync and local counters and generate warnings according to
#
# https://github.com/Yubico/yubikey-val/wiki/ServerReplicationProtocol
#
if ($sync->countersHigherThan($localParams, $syncParams)) {
$myLog->log(LOG_WARNING, 'Remote server out of sync.');
}
if ($sync->countersEqual($localParams, $syncParams)) {
if ($syncParams['modified']==$localParams['modified'] &&
$syncParams['nonce']==$localParams['nonce']) {
/* This is not an error. When the remote server received an OTP to verify, it would
* have sent out sync requests immediately. When the required number of responses had
* been received, the current implementation discards all additional responses (to
* return the result to the client as soon as possible). If our response sent last
* time was discarded, we will end up here when the background ykval-queue processes
* the sync request again.
*/
$myLog->log(LOG_INFO, 'Sync request unnecessarily sent');
}
if ($syncParams['modified']!=$localParams['modified'] &&
$syncParams['nonce']==$localParams['nonce']) {
$deltaModified = $syncParams['modified'] - $localParams['modified'];
if($deltaModified < -1 || $deltaModified > 1) {
$myLog->log(LOG_WARNING, 'We might have a replay. 2 events at different times have generated the same counters. The time difference is ' . $deltaModified . ' seconds');
}
}
if ($syncParams['nonce']!=$localParams['nonce']) {
$myLog->log(LOG_WARNING, 'Remote server has received a request to validate an already validated OTP ');
}
}
if ($localParams['active'] != 1) {
/* The remote server has accepted an OTP from a YubiKey which we would not.
* We still needed to update our counters with the counters from the OTP though.
*/
$myLog->log(LOG_WARNING, 'Received sync-request for de-activated Yubikey ' . $yk_publicname .
' - check database synchronization!!!');
sendResp(S_BAD_OTP, $myLog, $apiKey);
exit;
}
$extra=array('modified'=>$localParams['modified'],
'nonce'=>$localParams['nonce'],
'yk_publicname'=>$yk_publicname,
'yk_counter'=>$localParams['yk_counter'],
'yk_use'=>$localParams['yk_use'],
'yk_high'=>$localParams['yk_high'],
'yk_low'=>$localParams['yk_low']);
sendResp(S_OK, $myLog, $apiKey, $extra);
?>

844
ykval-verify.php
View File

@ -1,422 +1,422 @@
<?php
# Copyright (c) 2009-2013 Yubico AB
# 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.
#
# 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
# OWNER 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.
require_once 'ykval-common.php';
require_once 'ykval-config.php';
require_once 'ykval-synclib.php';
$apiKey = '';
header("content-type: text/plain");
$myLog = new Log('ykval-verify');
$myLog->addField('ip', $_SERVER['REMOTE_ADDR']);
$query_string = '';
if ($_POST) {
$kv = array();
foreach ($_POST as $key => $value) {
$kv[] = "$key=$value";
}
$query_string = "POST: " . join("&", $kv);
} else {
$query_string = "Request: " . $_SERVER['QUERY_STRING'];
}
$myLog->log(LOG_INFO, $query_string .
" (at " . date("c") . " " . microtime() . ") " .
(isset($_SERVER["HTTPS"]) && $_SERVER["HTTPS"] == "on" ? "HTTPS" : "HTTP"));
/* Detect protocol version */
if (preg_match("/\/wsapi\/([0-9]+)\.([0-9]+)\//", $_SERVER['REQUEST_URI'], $out)) {
$protocol_version=$out[1]+$out[2]*0.1;
} else {
$protocol_version=1.0;
}
$myLog->log(LOG_DEBUG, "found protocol version " . $protocol_version);
/* Extract values from HTTP request
*/
$h = getHttpVal('h', '');
$client = getHttpVal('id', 0);
$otp = getHttpVal('otp', '');
$otp = strtolower($otp);
if (preg_match("/^[jxe.uidchtnbpygk]+$/", $otp)) {
$new_otp = strtr($otp, "jxe.uidchtnbpygk", "cbdefghijklnrtuv");
$myLog->log(LOG_INFO, 'Dvorak OTP converting ' . $otp . ' to ' . $new_otp);
$otp = $new_otp;
}
$timestamp = getHttpVal('timestamp', 0);
/* Construct response parameters */
$extra=array();
if ($protocol_version>=2.0) {
$extra['otp']=$otp;
}
/* We have the OTP now, so let's add it to the logging */
$myLog->addField('otp', $otp);
if ($protocol_version>=2.0) {
$sl = getHttpVal('sl', '');
$timeout = getHttpVal('timeout', '');
$nonce = getHttpVal('nonce', '');
/* Add nonce to response parameters */
$extra['nonce']= $nonce;
/* Nonce is required from protocol 2.0 */
if(!$nonce) {
$myLog->log(LOG_NOTICE, 'Nonce is missing and protocol version >= 2.0');
sendResp(S_MISSING_PARAMETER, $myLog);
exit;
}
}
/* Sanity check HTTP parameters
* otp: one-time password
* id: client id
* timeout: timeout in seconds to wait for external answers, optional: if absent the server decides
* nonce: random alphanumeric string, 16 to 40 characters long. Must be non-predictable and changing for each request, but need not be cryptographically strong
* sl: "sync level", percentage of external servers that needs to answer (integer 0 to 100), or "fast" or "secure" to use server-configured values
* h: signature (optional)
* timestamp: requests timestamp/counters in response
*/
/* Change default protocol "strings" to numeric values */
if (isset($sl) && strcasecmp($sl, 'fast')==0) {
$sl=$baseParams['__YKVAL_SYNC_FAST_LEVEL__'];
}
if (isset($sl) && strcasecmp($sl, 'secure')==0) {
$sl=$baseParams['__YKVAL_SYNC_SECURE_LEVEL__'];
}
if (!isset($sl) || $sl == '') {
$sl=$baseParams['__YKVAL_SYNC_DEFAULT_LEVEL__'];
}
if (!isset($timeout) || $timeout == '') {
$timeout=$baseParams['__YKVAL_SYNC_DEFAULT_TIMEOUT__'];
}
if ($otp == '') {
$myLog->log(LOG_NOTICE, 'OTP is missing');
sendResp(S_MISSING_PARAMETER, $myLog);
exit;
}
if (strlen($otp) < TOKEN_LEN || strlen ($otp) > OTP_MAX_LEN) {
$myLog->log(LOG_NOTICE, 'Incorrect OTP length: ' . $otp);
sendResp(S_BAD_OTP, $myLog);
exit;
}
if (preg_match("/^[cbdefghijklnrtuv]+$/", $otp)==0) {
$myLog->log(LOG_NOTICE, 'Invalid OTP: ' . $otp);
sendResp(S_BAD_OTP, $myLog);
exit;
}
if (preg_match("/^[0-9]+$/", $client)==0){
$myLog->log(LOG_NOTICE, 'id provided in request must be an integer');
sendResp(S_MISSING_PARAMETER, $myLog);
exit;
}
if ($timeout && preg_match("/^[0-9]+$/", $timeout)==0) {
$myLog->log(LOG_NOTICE, 'timeout is provided but not correct');
sendResp(S_MISSING_PARAMETER, $myLog);
exit;
}
if (isset($nonce) && preg_match("/^[A-Za-z0-9]+$/", $nonce)==0) {
$myLog->log(LOG_NOTICE, 'NONCE is provided but not correct');
sendResp(S_MISSING_PARAMETER, $myLog);
exit;
}
if (isset($nonce) && (strlen($nonce) < 16 || strlen($nonce) > 40)) {
$myLog->log(LOG_NOTICE, 'Nonce too short or too long');
sendResp(S_MISSING_PARAMETER, $myLog);
exit;
}
if ($sl && (preg_match("/^[0-9]+$/", $sl)==0 || ($sl<0 || $sl>100))) {
$myLog->log(LOG_NOTICE, 'SL is provided but not correct');
sendResp(S_MISSING_PARAMETER, $myLog);
exit;
}
// NOTE: Timestamp parameter is not checked since current protocol says that 1 means request timestamp
// and anything else is discarded.
//// Get Client info from DB
//
if ($client <= 0) {
$myLog->log(LOG_NOTICE, 'Client ID is missing');
sendResp(S_MISSING_PARAMETER, $myLog);
exit;
}
/* Initialize the sync library. Strive to use this instead of custom
DB requests, custom comparisons etc */
$sync = new SyncLib('ykval-verify:synclib');
$sync->addField('ip', $_SERVER['REMOTE_ADDR']);
$sync->addField('otp', $otp);
if (! $sync->isConnected()) {
sendResp(S_BACKEND_ERROR, $myLog);
exit;
}
$cd=$sync->getClientData($client);
if(!$cd) {
$myLog->log(LOG_NOTICE, 'Invalid client id ' . $client);
sendResp(S_NO_SUCH_CLIENT, $myLog);
exit;
}
$myLog->log(LOG_DEBUG,"Client data:", $cd);
//// Check client signature
//
$apiKey = base64_decode($cd['secret']);
if ($h != '') {
// Create the signature using the API key
$a;
if($_GET) {
$a = $_GET;
} elseif($_POST) {
$a = $_POST;
} else {
sendRest(S_BACKEND_ERROR);
exit;
}
unset($a['h']);
$hmac = sign($a, $apiKey, $myLog);
// Compare it
if ($hmac != $h) {
$myLog->log(LOG_DEBUG, 'client hmac=' . $h . ', server hmac=' . $hmac);
sendResp(S_BAD_SIGNATURE, $myLog, $apiKey);
exit;
}
}
/* We need to add necessary parameters not available at earlier protocols after signature is computed.
*/
if ($protocol_version<2.0) {
/* We need to create a nonce manually here */
$nonce = md5(uniqid(rand()));
$myLog->log(LOG_INFO, 'protocol version below 2.0. Created nonce ' . $nonce);
}
//// Which YK-KSM should we talk to?
//
$urls = otp2ksmurls ($otp, $client);
if (!is_array($urls)) {
sendResp(S_BACKEND_ERROR, $myLog, $apiKey);
exit;
}
//// Decode OTP from input
//
$otpinfo = KSMdecryptOTP($urls, $myLog);
if (!is_array($otpinfo)) {
sendResp(S_BAD_OTP, $myLog, $apiKey);
exit;
}
$myLog->log(LOG_DEBUG, "Decrypted OTP:", $otpinfo);
//// Get Yubikey from DB
//
$devId = substr($otp, 0, strlen ($otp) - TOKEN_LEN);
$yk_publicname=$devId;
$localParams = $sync->getLocalParams($yk_publicname);
if (!$localParams) {
$myLog->log(LOG_NOTICE, 'Invalid Yubikey ' . $yk_publicname);
sendResp(S_BACKEND_ERROR, $myLog, $apiKey);
exit;
}
$myLog->log(LOG_DEBUG, "Auth data:", $localParams);
if ($localParams['active'] != 1) {
$myLog->log(LOG_NOTICE, 'De-activated Yubikey ' . $devId);
sendResp(S_BAD_OTP, $myLog, $apiKey);
exit;
}
/* Build OTP params */
$otpParams=array('modified'=>time(),
'otp'=>$otp,
'nonce'=>$nonce,
'yk_publicname'=>$devId,
'yk_counter'=>$otpinfo['session_counter'],
'yk_use'=>$otpinfo['session_use'],
'yk_high'=>$otpinfo['high'],
'yk_low'=>$otpinfo['low']);
/* First check if OTP is seen with the same nonce, in such case we have an replayed request */
if ($sync->countersEqual($localParams, $otpParams) &&
$localParams['nonce']==$otpParams['nonce']) {
$myLog->log(LOG_WARNING, 'Replayed request');
sendResp(S_REPLAYED_REQUEST, $myLog, $apiKey, $extra);
exit;
}
/* Check the OTP counters against local db */
if ($sync->countersHigherThanOrEqual($localParams, $otpParams)) {
$sync->log(LOG_WARNING, 'replayed OTP: Local counters higher');
$sync->log(LOG_WARNING, 'replayed OTP: Local counters ', $localParams);
$sync->log(LOG_WARNING, 'replayed OTP: Otp counters ', $otpParams);
sendResp(S_REPLAYED_OTP, $myLog, $apiKey, $extra);
exit;
}
/* Valid OTP, update database. */
if(!$sync->updateDbCounters($otpParams)) {
$myLog->log(LOG_CRIT, "Failed to update yubikey counters in database");
sendResp(S_BACKEND_ERROR, $myLog, $apiKey);
exit;
}
/* Queue sync requests */
if (!$sync->queue($otpParams, $localParams)) {
$myLog->log(LOG_CRIT, "ykval-verify:critical:failed to queue sync requests");
sendResp(S_BACKEND_ERROR, $myLog, $apiKey);
exit;
}
$nr_servers=$sync->getNumberOfServers();
$req_answers=ceil($nr_servers*$sl/100.0);
if ($req_answers>0) {
$syncres=$sync->sync($req_answers, $timeout);
$nr_answers=$sync->getNumberOfAnswers();
$nr_valid_answers=$sync->getNumberOfValidAnswers();
$sl_success_rate=floor(100.0 * $nr_valid_answers / $nr_servers);
} else {
$syncres=true;
$nr_answers=0;
$nr_valid_answers=0;
$sl_success_rate=0;
}
$myLog->log(LOG_INFO, "ykval-verify:notice:synclevel=" . $sl .
" nr servers=" . $nr_servers .
" req answers=" . $req_answers .
" answers=" . $nr_answers .
" valid answers=" . $nr_valid_answers .
" sl success rate=" . $sl_success_rate .
" timeout=" . $timeout);
if($syncres==False) {
/* sync returned false, indicating that
either at least 1 answer marked OTP as invalid or
there were not enough answers */
$myLog->log(LOG_WARNING, "ykval-verify:notice:Sync failed");
if ($nr_valid_answers!=$nr_answers) {
sendResp(S_REPLAYED_OTP, $myLog, $apiKey, $extra);
exit;
} else {
$extra['sl']=$sl_success_rate;
sendResp(S_NOT_ENOUGH_ANSWERS, $myLog, $apiKey, $extra);
exit;
}
}
/* Recreate parameters to make phising test work out
TODO: use timefunctionality in deltatime library instead */
$sessionCounter = $otpParams['yk_counter'];
$sessionUse = $otpParams['yk_use'];
$seenSessionCounter = $localParams['yk_counter'];
$seenSessionUse = $localParams['yk_use'];
$ad['high']=$localParams['yk_high'];
$ad['low']=$localParams['yk_low'];
$ad['accessed']=$sync->unixToDbTime($localParams['modified']);
//// Check the time stamp
//
if ($sessionCounter == $seenSessionCounter && $sessionUse > $seenSessionUse) {
$ts = ($otpinfo['high'] << 16) + $otpinfo['low'];
$seenTs = ($ad['high'] << 16) + $ad['low'];
$tsDiff = $ts - $seenTs;
$tsDelta = $tsDiff * TS_SEC;
//// Check the real time
//
$lastTime = strtotime($ad['accessed']);
$now = time();
$elapsed = $now - $lastTime;
$deviation = abs($elapsed - $tsDelta);
// Time delta server might verify multiple OTPS in a row. In such case validation server doesn't
// have time to tick a whole second and we need to avoid division by zero.
if ($elapsed != 0) {
$percent = $deviation/$elapsed;
} else {
$percent = 1;
}
$myLog->log(LOG_INFO, "Timestamp seen=" . $seenTs . " this=" . $ts .
" delta=" . $tsDiff . ' secs=' . $tsDelta .
' accessed=' . $lastTime .' (' . $ad['accessed'] . ') now='
. $now . ' (' . strftime("%Y-%m-%d %H:%M:%S", $now)
. ') elapsed=' . $elapsed .
' deviation=' . $deviation . ' secs or '.
round(100*$percent) . '%');
if ($deviation > TS_ABS_TOLERANCE && $percent > TS_REL_TOLERANCE) {
$myLog->log(LOG_NOTICE, "OTP failed phishing test");
if (0) {
sendResp(S_DELAYED_OTP, $myLog, $apiKey, $extra);
exit;
}
}
}
/* Fill up with more respone parameters */
if ($protocol_version>=2.0) {
$extra['sl'] = $sl_success_rate;
}
if ($timestamp==1){
$extra['timestamp'] = ($otpinfo['high'] << 16) + $otpinfo['low'];
$extra['sessioncounter'] = $sessionCounter;
$extra['sessionuse'] = $sessionUse;
}
sendResp(S_OK, $myLog, $apiKey, $extra);
?>
<?php
# Copyright (c) 2009-2013 Yubico AB
# 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.
#
# 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
# OWNER 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.
require_once 'ykval-common.php';
require_once 'ykval-config.php';
require_once 'ykval-synclib.php';
$apiKey = '';
header("content-type: text/plain");
$myLog = new Log('ykval-verify');
$myLog->addField('ip', $_SERVER['REMOTE_ADDR']);
$query_string = '';
if ($_POST) {
$kv = array();
foreach ($_POST as $key => $value) {
$kv[] = "$key=$value";
}
$query_string = "POST: " . join("&", $kv);
} else {
$query_string = "Request: " . $_SERVER['QUERY_STRING'];
}
$myLog->log(LOG_INFO, $query_string .
" (at " . date("c") . " " . microtime() . ") " .
(isset($_SERVER["HTTPS"]) && $_SERVER["HTTPS"] == "on" ? "HTTPS" : "HTTP"));
/* Detect protocol version */
if (preg_match("/\/wsapi\/([0-9]+)\.([0-9]+)\//", $_SERVER['REQUEST_URI'], $out)) {
$protocol_version=$out[1]+$out[2]*0.1;
} else {
$protocol_version=1.0;
}
$myLog->log(LOG_DEBUG, "found protocol version " . $protocol_version);
/* Extract values from HTTP request
*/
$h = getHttpVal('h', '');
$client = getHttpVal('id', 0);
$otp = getHttpVal('otp', '');
$otp = strtolower($otp);
if (preg_match("/^[jxe.uidchtnbpygk]+$/", $otp)) {
$new_otp = strtr($otp, "jxe.uidchtnbpygk", "cbdefghijklnrtuv");
$myLog->log(LOG_INFO, 'Dvorak OTP converting ' . $otp . ' to ' . $new_otp);
$otp = $new_otp;
}
$timestamp = getHttpVal('timestamp', 0);
/* Construct response parameters */
$extra=array();
if ($protocol_version>=2.0) {
$extra['otp']=$otp;
}
/* We have the OTP now, so let's add it to the logging */
$myLog->addField('otp', $otp);
if ($protocol_version>=2.0) {
$sl = getHttpVal('sl', '');
$timeout = getHttpVal('timeout', '');
$nonce = getHttpVal('nonce', '');
/* Add nonce to response parameters */
$extra['nonce']= $nonce;
/* Nonce is required from protocol 2.0 */
if(!$nonce) {
$myLog->log(LOG_NOTICE, 'Nonce is missing and protocol version >= 2.0');
sendResp(S_MISSING_PARAMETER, $myLog);
exit;
}
}
/* Sanity check HTTP parameters
* otp: one-time password
* id: client id
* timeout: timeout in seconds to wait for external answers, optional: if absent the server decides
* nonce: random alphanumeric string, 16 to 40 characters long. Must be non-predictable and changing for each request, but need not be cryptographically strong
* sl: "sync level", percentage of external servers that needs to answer (integer 0 to 100), or "fast" or "secure" to use server-configured values
* h: signature (optional)
* timestamp: requests timestamp/counters in response
*/
/* Change default protocol "strings" to numeric values */
if (isset($sl) && strcasecmp($sl, 'fast')==0) {
$sl=$baseParams['__YKVAL_SYNC_FAST_LEVEL__'];
}
if (isset($sl) && strcasecmp($sl, 'secure')==0) {
$sl=$baseParams['__YKVAL_SYNC_SECURE_LEVEL__'];
}
if (!isset($sl) || $sl == '') {
$sl=$baseParams['__YKVAL_SYNC_DEFAULT_LEVEL__'];
}
if (!isset($timeout) || $timeout == '') {
$timeout=$baseParams['__YKVAL_SYNC_DEFAULT_TIMEOUT__'];
}
if ($otp == '') {
$myLog->log(LOG_NOTICE, 'OTP is missing');
sendResp(S_MISSING_PARAMETER, $myLog);
exit;
}
if (strlen($otp) < TOKEN_LEN || strlen ($otp) > OTP_MAX_LEN) {
$myLog->log(LOG_NOTICE, 'Incorrect OTP length: ' . $otp);
sendResp(S_BAD_OTP, $myLog);
exit;
}
if (preg_match("/^[cbdefghijklnrtuv]+$/", $otp)==0) {
$myLog->log(LOG_NOTICE, 'Invalid OTP: ' . $otp);
sendResp(S_BAD_OTP, $myLog);
exit;
}
if (preg_match("/^[0-9]+$/", $client)==0){
$myLog->log(LOG_NOTICE, 'id provided in request must be an integer');
sendResp(S_MISSING_PARAMETER, $myLog);
exit;
}
if ($timeout && preg_match("/^[0-9]+$/", $timeout)==0) {
$myLog->log(LOG_NOTICE, 'timeout is provided but not correct');
sendResp(S_MISSING_PARAMETER, $myLog);
exit;
}
if (isset($nonce) && preg_match("/^[A-Za-z0-9]+$/", $nonce)==0) {
$myLog->log(LOG_NOTICE, 'NONCE is provided but not correct');
sendResp(S_MISSING_PARAMETER, $myLog);
exit;
}
if (isset($nonce) && (strlen($nonce) < 16 || strlen($nonce) > 40)) {
$myLog->log(LOG_NOTICE, 'Nonce too short or too long');
sendResp(S_MISSING_PARAMETER, $myLog);
exit;
}
if ($sl && (preg_match("/^[0-9]+$/", $sl)==0 || ($sl<0 || $sl>100))) {
$myLog->log(LOG_NOTICE, 'SL is provided but not correct');
sendResp(S_MISSING_PARAMETER, $myLog);
exit;
}
// NOTE: Timestamp parameter is not checked since current protocol says that 1 means request timestamp
// and anything else is discarded.
//// Get Client info from DB
//
if ($client <= 0) {
$myLog->log(LOG_NOTICE, 'Client ID is missing');
sendResp(S_MISSING_PARAMETER, $myLog);
exit;
}
/* Initialize the sync library. Strive to use this instead of custom
DB requests, custom comparisons etc */
$sync = new SyncLib('ykval-verify:synclib');
$sync->addField('ip', $_SERVER['REMOTE_ADDR']);
$sync->addField('otp', $otp);
if (! $sync->isConnected()) {
sendResp(S_BACKEND_ERROR, $myLog);
exit;
}
$cd=$sync->getClientData($client);
if(!$cd) {
$myLog->log(LOG_NOTICE, 'Invalid client id ' . $client);
sendResp(S_NO_SUCH_CLIENT, $myLog);
exit;
}
$myLog->log(LOG_DEBUG,"Client data:", $cd);
//// Check client signature
//
$apiKey = base64_decode($cd['secret']);
if ($h != '') {
// Create the signature using the API key
$a;
if($_GET) {
$a = $_GET;
} elseif($_POST) {
$a = $_POST;
} else {
sendRest(S_BACKEND_ERROR);
exit;
}
unset($a['h']);
$hmac = sign($a, $apiKey, $myLog);
// Compare it
if ($hmac != $h) {
$myLog->log(LOG_DEBUG, 'client hmac=' . $h . ', server hmac=' . $hmac);
sendResp(S_BAD_SIGNATURE, $myLog, $apiKey);
exit;
}
}
/* We need to add necessary parameters not available at earlier protocols after signature is computed.
*/
if ($protocol_version<2.0) {
/* We need to create a nonce manually here */
$nonce = md5(uniqid(rand()));
$myLog->log(LOG_INFO, 'protocol version below 2.0. Created nonce ' . $nonce);
}
//// Which YK-KSM should we talk to?
//
$urls = otp2ksmurls ($otp, $client);
if (!is_array($urls)) {
sendResp(S_BACKEND_ERROR, $myLog, $apiKey);
exit;
}
//// Decode OTP from input
//
$otpinfo = KSMdecryptOTP($urls, $myLog);
if (!is_array($otpinfo)) {
sendResp(S_BAD_OTP, $myLog, $apiKey);
exit;
}
$myLog->log(LOG_DEBUG, "Decrypted OTP:", $otpinfo);
//// Get Yubikey from DB
//
$devId = substr($otp, 0, strlen ($otp) - TOKEN_LEN);
$yk_publicname=$devId;
$localParams = $sync->getLocalParams($yk_publicname);
if (!$localParams) {
$myLog->log(LOG_NOTICE, 'Invalid Yubikey ' . $yk_publicname);
sendResp(S_BACKEND_ERROR, $myLog, $apiKey);
exit;
}
$myLog->log(LOG_DEBUG, "Auth data:", $localParams);
if ($localParams['active'] != 1) {
$myLog->log(LOG_NOTICE, 'De-activated Yubikey ' . $devId);
sendResp(S_BAD_OTP, $myLog, $apiKey);
exit;
}
/* Build OTP params */
$otpParams=array('modified'=>time(),
'otp'=>$otp,
'nonce'=>$nonce,
'yk_publicname'=>$devId,
'yk_counter'=>$otpinfo['session_counter'],
'yk_use'=>$otpinfo['session_use'],
'yk_high'=>$otpinfo['high'],
'yk_low'=>$otpinfo['low']);
/* First check if OTP is seen with the same nonce, in such case we have an replayed request */
if ($sync->countersEqual($localParams, $otpParams) &&
$localParams['nonce']==$otpParams['nonce']) {
$myLog->log(LOG_WARNING, 'Replayed request');
sendResp(S_REPLAYED_REQUEST, $myLog, $apiKey, $extra);
exit;
}
/* Check the OTP counters against local db */
if ($sync->countersHigherThanOrEqual($localParams, $otpParams)) {
$sync->log(LOG_WARNING, 'replayed OTP: Local counters higher');
$sync->log(LOG_WARNING, 'replayed OTP: Local counters ', $localParams);
$sync->log(LOG_WARNING, 'replayed OTP: Otp counters ', $otpParams);
sendResp(S_REPLAYED_OTP, $myLog, $apiKey, $extra);
exit;
}
/* Valid OTP, update database. */
if(!$sync->updateDbCounters($otpParams)) {
$myLog->log(LOG_CRIT, "Failed to update yubikey counters in database");
sendResp(S_BACKEND_ERROR, $myLog, $apiKey);
exit;
}
/* Queue sync requests */
if (!$sync->queue($otpParams, $localParams)) {
$myLog->log(LOG_CRIT, "ykval-verify:critical:failed to queue sync requests");
sendResp(S_BACKEND_ERROR, $myLog, $apiKey);
exit;
}
$nr_servers=$sync->getNumberOfServers();
$req_answers=ceil($nr_servers*$sl/100.0);
if ($req_answers>0) {
$syncres=$sync->sync($req_answers, $timeout);
$nr_answers=$sync->getNumberOfAnswers();
$nr_valid_answers=$sync->getNumberOfValidAnswers();
$sl_success_rate=floor(100.0 * $nr_valid_answers / $nr_servers);
} else {
$syncres=true;
$nr_answers=0;
$nr_valid_answers=0;
$sl_success_rate=0;
}
$myLog->log(LOG_INFO, "ykval-verify:notice:synclevel=" . $sl .
" nr servers=" . $nr_servers .
" req answers=" . $req_answers .
" answers=" . $nr_answers .
" valid answers=" . $nr_valid_answers .
" sl success rate=" . $sl_success_rate .
" timeout=" . $timeout);
if($syncres==False) {
/* sync returned false, indicating that
either at least 1 answer marked OTP as invalid or
there were not enough answers */
$myLog->log(LOG_WARNING, "ykval-verify:notice:Sync failed");
if ($nr_valid_answers!=$nr_answers) {
sendResp(S_REPLAYED_OTP, $myLog, $apiKey, $extra);
exit;
} else {
$extra['sl']=$sl_success_rate;
sendResp(S_NOT_ENOUGH_ANSWERS, $myLog, $apiKey, $extra);
exit;
}
}
/* Recreate parameters to make phising test work out
TODO: use timefunctionality in deltatime library instead */
$sessionCounter = $otpParams['yk_counter'];
$sessionUse = $otpParams['yk_use'];
$seenSessionCounter = $localParams['yk_counter'];
$seenSessionUse = $localParams['yk_use'];
$ad['high']=$localParams['yk_high'];
$ad['low']=$localParams['yk_low'];
$ad['accessed']=$sync->unixToDbTime($localParams['modified']);
//// Check the time stamp
//
if ($sessionCounter == $seenSessionCounter && $sessionUse > $seenSessionUse) {
$ts = ($otpinfo['high'] << 16) + $otpinfo['low'];
$seenTs = ($ad['high'] << 16) + $ad['low'];
$tsDiff = $ts - $seenTs;
$tsDelta = $tsDiff * TS_SEC;
//// Check the real time
//
$lastTime = strtotime($ad['accessed']);
$now = time();
$elapsed = $now - $lastTime;
$deviation = abs($elapsed - $tsDelta);
// Time delta server might verify multiple OTPS in a row. In such case validation server doesn't
// have time to tick a whole second and we need to avoid division by zero.
if ($elapsed != 0) {
$percent = $deviation/$elapsed;
} else {
$percent = 1;
}
$myLog->log(LOG_INFO, "Timestamp seen=" . $seenTs . " this=" . $ts .
" delta=" . $tsDiff . ' secs=' . $tsDelta .
' accessed=' . $lastTime .' (' . $ad['accessed'] . ') now='
. $now . ' (' . strftime("%Y-%m-%d %H:%M:%S", $now)
. ') elapsed=' . $elapsed .
' deviation=' . $deviation . ' secs or '.
round(100*$percent) . '%');
if ($deviation > TS_ABS_TOLERANCE && $percent > TS_REL_TOLERANCE) {
$myLog->log(LOG_NOTICE, "OTP failed phishing test");
if (0) {
sendResp(S_DELAYED_OTP, $myLog, $apiKey, $extra);
exit;
}
}
}
/* Fill up with more respone parameters */
if ($protocol_version>=2.0) {
$extra['sl'] = $sl_success_rate;
}
if ($timestamp==1){
$extra['timestamp'] = ($otpinfo['high'] << 16) + $otpinfo['low'];
$extra['sessioncounter'] = $sessionCounter;
$extra['sessionuse'] = $sessionUse;
}
sendResp(S_OK, $myLog, $apiKey, $extra);
?>