FW: [ net-snmp-Bugs-3480541 ] Wrong index of disk (dskIndex)

[Alexey Kouznetsov]

Hello! 
Could you, please look at this also?
Explanation bellow at SF bug track

--- work/net-snmp-5.7.1/agent/mibgroup/ucd-snmp/disk_hw.c.orig  2011-09-@@
+++ work/net-snmp-5.7.1/agent/mibgroup/ucd-snmp/disk_hw.c       2012-02-11
21:55:16.000000000 +0400-322,7 +321,7 @@

     switch (vp->magic) {
     case MIBINDEX:
+        long_ret = disknum + 1;
-        long_ret = disknum;
         return ((u_char *) (&long_ret));
     case ERRORNAME:            /* DISKPATH */
         *var_len = strlen(entry->path);

Thank you!

-----Original Message-----
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Sent: Saturday, February 11, 2012 10:16 PM
To: SourceForge.net
Subject: [ net-snmp-Bugs-3480541 ] Wrong index of disk (dskIndex)

Bugs item #3480541, was opened at 2012-01-27 05:47
Message generated for change (Comment added) made by st-da
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Category: agent
Group: freeBSD
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Alexey (st-da)
Assigned to: Nobody/Anonymous (nobody)
Summary: Wrong index of disk (dskIndex)

Initial Comment:
# snmpwalk -c public 127.0.0.1 dskIndex 

UCD-SNMP-MIB::dskIndex.1 = INTEGER: 0
UCD-SNMP-MIB::dskIndex.2 = INTEGER: 1
UCD-SNMP-MIB::dskIndex.3 = INTEGER: 2
UCD-SNMP-MIB::dskIndex.4 = INTEGER: 3
UCD-SNMP-MIB::dskIndex.5 = INTEGER: 4
UCD-SNMP-MIB::dskIndex.6 = INTEGER: 5
UCD-SNMP-MIB::dskIndex.7 = INTEGER: 6


In my mind it have to be same mumbers in OID and in index

UCD-SNMP-MIB::dskIndex.1 = INTEGER: 1
UCD-SNMP-MIB::dskIndex.2 = INTEGER: 2
UCD-SNMP-MIB::dskIndex.3 = INTEGER: 3
UCD-SNMP-MIB::dskIndex.4 = INTEGER: 4
UCD-SNMP-MIB::dskIndex.5 = INTEGER: 5
UCD-SNMP-MIB::dskIndex.6 = INTEGER: 6
UCD-SNMP-MIB::dskIndex.7 = INTEGER: 7


# /usr/local/sbin/snmpd -v

NET-SNMP version:  5.7.1
Web:               http://www.net-snmp.org/
Email:             net-snmp-coders at lists.sourceforge.net

recenly built from ports on FreeBSD 8.2 stable. Looks lite it started from
5.7 and was correctly before. 

----------------------------------------------------------------------

>Comment By: Alexey (st-da)
Date: 2012-02-11 10:15

Message:
ops reverse + and - at last patch...

----------------------------------------------------------------------

Comment By: Alexey (st-da)
Date: 2012-02-11 10:07

Message:
disk index fixed for me by small path:

--- work/net-snmp-5.7.1/agent/mibgroup/ucd-snmp/disk_hw.c       2012-02-11
21:55:16.000000000 +0400
+++ work/net-snmp-5.7.1/agent/mibgroup/ucd-snmp/disk_hw.c.orig  2011-09-@@
-322,7 +321,7 @@

     switch (vp->magic) {
     case MIBINDEX:
-        long_ret = disknum + 1;
+        long_ret = disknum;
         return ((u_char *) (&long_ret));
     case ERRORNAME:            /* DISKPATH */
         *var_len = strlen(entry->path);


----------------------------------------------------------------------

Comment By: Alexey (st-da)
Date: 2012-02-02 06:09

Message:
there are same requets sfter we clean up the disk


UCD-SNMP-MIB::dskTotal.4 = INTEGER: 50777034
UCD-SNMP-MIB::dskAvail.4 = INTEGER: 36894232
UCD-SNMP-MIB::dskUsed.4 = INTEGER: 9820640


----------------------------------------------------------------------

Comment By: Alexey (st-da)
Date: 2012-02-02 05:53

Message:
There are some more problem:

df -k | egrep logs
/dev/aacd0s1g              50777034 46745456    -30584   100%    /logs


/usr/local/bin/snmpwalk -c public xxxxxx dsk| egrep '\.4 = '
UCD-SNMP-MIB::dskIndex.4 = INTEGER: 3
UCD-SNMP-MIB::dskPath.4 = STRING: /logs
UCD-SNMP-MIB::dskDevice.4 = STRING: /dev/aacd0s1g
UCD-SNMP-MIB::dskMinimum.4 = INTEGER: 524288
UCD-SNMP-MIB::dskMinPercent.4 = INTEGER: -1
UCD-SNMP-MIB::dskTotal.4 = INTEGER: 50777034
UCD-SNMP-MIB::dskAvail.4 = INTEGER: 2147483647
UCD-SNMP-MIB::dskUsed.4 = INTEGER: 46745264
UCD-SNMP-MIB::dskPercent.4 = INTEGER: 92
UCD-SNMP-MIB::dskPercentNode.4 = INTEGER: 1
UCD-SNMP-MIB::dskTotalLow.4 = Gauge32: 50777034
UCD-SNMP-MIB::dskTotalHigh.4 = Gauge32: 0
UCD-SNMP-MIB::dskAvailLow.4 = Gauge32: 4294936904
UCD-SNMP-MIB::dskAvailHigh.4 = Gauge32: 4294967295
UCD-SNMP-MIB::dskUsedLow.4 = Gauge32: 46745264
UCD-SNMP-MIB::dskUsedHigh.4 = Gauge32: 0
UCD-SNMP-MIB::dskErrorFlag.4 = INTEGER: noError(0)
UCD-SNMP-MIB::dskErrorMsg.4 = STRING: 

some unrealistic unavailable value
dskAvail.4 = INTEGER: 2147483647

Somethiong like unsigned where we save negative value ?

FreeBSD 8.2-STABLE #9: Tue Oct 11 07:07:46 UTC 2011

pkg_info -aI | egrep snmp
net-snmp-5.7_4      An extendable SNMP implementation


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