Bug #64159 [Csd->Fbk]: Truncated snmpget
| From: | lytboris@php.net | Date: | Fri, 03 May 2013 12:08:55 +0000 |
| Subject: | Bug #64159 [Csd->Fbk]: Truncated snmpget | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-178777@lists.php.net to get a copy of this message | ||
Edit report at https://bugs.php.net/bug.php?id=64159&edit=1
ID: 64159
Updated by: lytboris@php.net
Reported by: loic dot blot at unix-experience dot fr
Summary: Truncated snmpget
-Status: Closed
+Status: Feedback
Type: Bug
Package: SNMP related
Operating System: *
PHP Version: 5.4.11
Assigned To: lytboris
Block user comment: N
Private report: N
New Comment:
Please try using this snapshot:
http://snaps.php.net/php5.4-latest.tar.gz
For Windows:
http://windows.php.net/snapshots/
Previous Comments:
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[2013-05-03 12:08:02] lytboris@php.net
Automatic comment on behalf of lytboris
Revision: http://git.php.net/?p=php-src.git;a=commit;h=2c336c9cde524cb6465bbd75924b7e40251aefab
Log: Fixed bug #64159 (Truncated snmpget)
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[2013-05-03 12:08:00] lytboris@php.net
Automatic comment on behalf of lytboris
Revision: http://git.php.net/?p=php-src.git;a=commit;h=e36adfe94a663bc1eeb5d9d378dc80883de179db
Log: Fixed bug #64159 (Truncated snmpget)
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[2013-05-03 09:35:46] lytboris@php.net
Basically this is because of loosy algorithm predicting string length produced by snmp library
function that prints OID values.
As a walkaround one can set
===
snmp_set_valueretrieval(SNMP_VALUE_PLAIN);
===
(or OO API [SNMP Object]->valueretrieval)
and then use bin2hex to decode binary string into hex string.
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[2013-02-20 18:40:33] yordan dot yordanov at innologica dot com
Happening to me aslo. Here's my reproduction:
[root@monitor ~]# snmpwalk -cpublic -v1 192.168.0.232 -On
.1.3.6.1.4.1.9.9.46.1.6.1.1.4.10003
.1.3.6.1.4.1.9.9.46.1.6.1.1.4.10003 = Hex-STRING: 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 04 00 00 00
[root@monitor ~]# php -r
'print_r(snmprealwalk("192.168.0.232","public",".1.3.6.1.4.1.9.9.46.1.6.1.1.4.10
003"));'
Array
(
[SNMPv2-SMI::enterprises.9.9.46.1.6.1.1.4.10003] => Hex-STRING: 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
)
[root@monitor ~]# php -v
PHP 5.4.11 (cli) (built: Jan 16 2013 16:51:38)
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2013 Zend Technologies
[root@monitor ~]# uname -a
Linux xxxxxxxx 2.6.32-279.19.1.el6.x86_64 #1 SMP Wed Dec 19 07:05:20 UTC 2012
x86_64 x86_64 x86_64 GNU/Linux
[root@monitor ~]# cat /etc/centos-release
CentOS release 6.3 (Final)
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[2013-02-06 22:00:27] loic dot blot at unix-experience dot fr
do this on a CISCO 2950, 2960, 3750 or 4500 (that's all devices i have tested) with proper
community and ip.
<?php echo
snmpget("192.168.1.1","2c","public","1.3.6.1.4.1.9.9.46.1.6.1.1.4");
?>
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