vp->magic and OID passed by snmpd

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Greetings to all.

I am using the code generated by mib2c for my MIB file. It contains an array
like this.. :

*oid systemInfo_variables_oid[] = { 1, 3, 6, 1, 4, 1, 6305, 1, 10, 1, 2, 1
};*
*struct variable7 systemInfo_variables[] = {*
*.*
*.*
*.*
*/* Out of all the elements of array, one is below, pasting only relevant
code here */*

*#define OVERALLDISKOCCUPANCYINKB 276*

* {OVERALLDISKOCCUPANCYINKB, ASN_UNSIGNED, RONLY,
var_systemDiskStatsNotfyAttrTable, 4, {2, 18, 1, 1}},*

*.*

*.*

*.*

*}*



When I fire a snmpget for OID 1.3.6.1.4.1.6305.1.10.1.2.1.2.18.1.1.1, I get
an error like this:

RFC1155-SMI::enterprises.6305.1.10.1.2.1.2.18.1.2.1 = No Such Instance
currently exists at this OID

In my function, when I print OID and vp->magic, OID passed is correct
whereas vp->magic is not 276 and hence the relevant case for the switch
statement is not hit. snmpd calls var_systemDiskStatsNotfyAttrTable with
incorrect vp->magic. Any anyone give me some pointers on this... I have
copied the relevant code below:

*/*
* var_systemDiskStatsNotfyAttrTable():
* Handle this table separately from the scalar value case.
* The workings of this are basically the same as for var_systemInfo
above.
*/
unsigned char *
var_systemDiskStatsNotfyAttrTable (struct variable *vp,
oid * name,
size_t * length,
int exact,
size_t * var_len,
WriteMethod ** write_method)
{
..*

*.*

*switch (vp->magic)
{
case OVERALLDISKOCCUPANCYINKB:
VAR = (int*)&p_resp->overall_disk_occupancy; /* XXX **

* default:*

* ERROR_MSG(" ");*

* }*

*.*

*.*

*}*

Thanks a lot in advance for your help.

Shivani

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<div>Greetings to all.</div>
<div>&nbsp;</div>
<div>I am using the code generated by mib2c for my MIB file. It contains an array like this.. :</div>
<div>
<p><strong>oid systemInfo_variables_oid[] = { 1, 3, 6, 1, 4, 1, 6305, 1, 10, 1, 2, 1 };</strong></p></div>
<div><strong>struct variable7 systemInfo_variables[] = {</strong></div>
<div><strong>.</strong></div>
<div><strong>.</strong></div>
<div><strong>.</strong></div>
<div><strong>/* Out of all the elements of array, one is below, pasting only relevant code here&nbsp;*/</strong></div>
<div>
<p><strong><font color="#ff6666">#define OVERALLDISKOCCUPANCYINKB&nbsp;&nbsp;276</font></strong></p>
<p><strong>&nbsp;&nbsp;&nbsp; {OVERALLDISKOCCUPANCYINKB, ASN_UNSIGNED, RONLY,<br>&nbsp;&nbsp; var_systemDiskStatsNotfyAttrTable, 4, {2, 18, 1, 1}},</strong></p>
<p><strong>.</strong></p>
<p><strong>.</strong></p>
<p><strong>.</strong></p>
<p><strong>}</strong></p>
<p>&nbsp;</p>
<p>When I fire a snmpget for OID 1.3.6.1.4.1.6305.1.10.1.2.1.2.18.1.1.1, I get an error like this:</p><font face="Helv" size="2">
<p>RFC1155-SMI::enterprises.6305.1.10.1.2.1.2.18.1.2.1 = No Such Instance currently exists at this OID</p></font>
<p>In my function, when I print OID and&nbsp;vp-&gt;magic, OID passed is correct whereas vp-&gt;magic is&nbsp;not 276 and hence the relevant case for the switch statement is not hit. snmpd calls var_systemDiskStatsNotfyAttrTable with incorrect vp-&gt;magic. Any anyone give me some pointers on this... I have copied the relevant code below:
</p>
<p><strong>/*<br>&nbsp;* var_systemDiskStatsNotfyAttrTable():<br>&nbsp;*&nb sp;&nbsp; Handle this table separately from the scalar value case.<br>&nbsp;*&nbsp;&nbsp; The workings of this are basically the same as for var_systemInfo above.<br>&nbsp;*/<br>unsigned char *
<br>var_systemDiskStatsNotfyAttrTable (struct variable *vp,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; oid * name,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; size_t * length,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; int exact,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; size_t * var_len,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WriteMethod ** write_method)<br>{<br>.</strong></p>
<p><strong>.</strong></p>
<p><strong>switch (vp-&gt;magic)<br>&nbsp;&nbsp;&nbsp;&nbsp; {<br><font color="#ff0000">&nbsp;&nbsp;&nbsp;&nbsp; case OVERALLDISKOCCUPANCYINKB:<br>&nbsp;&nbsp;&nbsp;&nb sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; VAR = (int*)&amp;p_resp-&gt;overall_disk_occupancy;&nbsp;/* XXX *</font></strong></p>
<p><strong>&nbsp;&nbsp;&nbsp;&nbsp; default:</strong></p>
<p><strong>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb sp;&nbsp;ERROR_MSG(&quot; &quot;);</strong></p>
<p><strong>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</strong></p>
<p><strong>.</strong></p>
<p><strong>.</strong></p>
<p><strong>}</strong></p>
<p>Thanks a lot in advance for your help.</p>
<p>Shivani</p></div>

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