[Bug 587828] [NEW] Row creation in snmpTargetAddrTable fails in 64-bit version

[Ulrik Forsgren]

Public bug reported:

When trying to create a row in the snmpTargetAddrTable in a 64-bit
system the attempt fails with this error:

ddskufo at ddskufo-laptop:~/Skrivbord/SNMP RFC'er/snmpV2$ snmptable localhost snmpTargetAddrTable
SNMP-TARGET-MIB::snmpTargetAddrTable: No entries
ddskufo at ddskufo-laptop:~/Skrivbord/SNMP RFC'er/snmpV2$ snmpset localhost snmpTargetAddrRowStatus."'ulrik'" i 5
Error in packet.
Reason: wrongLength (The set value has an illegal length from what the agent expects)
Failed object: SNMP-TARGET-MIB::snmpTargetAddrRowStatus.'ulrik'


The error is located to this piece of code on row 1504 in net-snmp/agent/mibgroup/target/snmpTargetAddrEntry.c:

        if (var_val_len != sizeof(int)) {
            DEBUGMSGTL(("snmpTargetAddrEntry",
                        "write to snmpTargetAddrRowStatus: bad length\n"));
            char s[128];
            sprintf(&s, "int length %d != %d\n", sizeof(int), var_val_len);
            DEBUGMSGTL(("snmpTargetAddrEntry", s));
            return SNMP_ERR_WRONGLENGTH;
        }


var_val_len is reported as 4
sizeof(int) in a 64-bit system

And 4 != 8, which means SNMP_ERR_WRONGLENGTH will be returned.

In the case sizeof(int) should be replaced with 4 and the if statement should look like:
if (var_val_len != 4) {

It would be suitable for both 32-bit and 64-bit systems.


Package information:

Package: snmpd
Priority: optional
Section: net
Installed-Size: 1228
Maintainer: Ubuntu Core Developers <ubuntu-devel-discuss at lists.ubuntu.com>
Original-Maintainer: Net-SNMP Packaging Team <pkg-net-snmp-devel at lists.alioth.debian.org>
Architecture: amd64
Source: net-snmp
Version: 5.4.2.1~dfsg0ubuntu1-0ubuntu2
Replaces: snmptraplogd
Depends: libc6 (>= 2.4), libsnmp15 (>= 5.4.2.1~dfsg), libwrap0 (>= 7.6-4~), debconf (>= 0.5) | debconf-2.0, adduser, debconf, lsb-base (>= 3.2-13)
Conflicts: snmp (<< 3.6-3), snmptraplogd
Filename: pool/main/n/net-snmp/snmpd_5.4.2.1~dfsg0ubuntu1-0ubuntu2_amd64.deb
Size: 953054
MD5sum: 003d4e890109109fe632e31545ca6a9c
SHA1: 67805e1406c9ce59922c573e8dab15128a21172a
SHA256: 1b923d0809e7b1c85a67226afcb38f53972eb8d3ec5310755179f5ef6688ef54
Description: SNMP (Simple Network Management Protocol) agents
 The Simple Network Management Protocol (SNMP) provides a framework
 for the exchange of management information between agents (servers)
 and clients.
 .
 The Net-SNMP agent is a daemon which listens for incoming SNMP
 requests from clients and provides responses.
Homepage: http://net-snmp.sourceforge.net/
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Origin: Ubuntu
Supported: 5y

** Affects: net-snmp (Ubuntu)
     Importance: Undecided
         Status: New

-- 
Row creation in snmpTargetAddrTable fails in 64-bit version
https://bugs.launchpad.net/bugs/587828
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