Re: Doubt regarding IF-MIB

sanjaykumar Tue, 19 Jan 2010 03:52:31 -0800

Hi Dave,

But In below function and other similar function,
data are not access from below Pointer but try to access the other element of "fTable_data data;" which are commented.

	/ * some data kept externally
         */
        netsnmp_interface_entry *ifentry;

int
ifMtu_get(ifTable_rowreq_ctx * rowreq_ctx, long *ifMtu_val_ptr)
{
   /** we should have a non-NULL pointer */
    netsnmp_assert(NULL != ifMtu_val_ptr);

    DEBUGMSGTL(("verbose:ifTable:ifMtu_get", "called\n"));

    netsnmp_assert(NULL != rowreq_ctx);

    /*
     * TODO:231:o: |-> Extract the current value of the ifMtu data.
     * copy (* ifMtu_val_ptr ) from rowreq_ctx->data
     */
    (*ifMtu_val_ptr) = rowreq_ctx->data.ifMtu; /*my doubt is here and in other similar function in                                                                 "if-mib/ifTable/ifTable.c" */

    return MFD_SUCCESS;
}                               /* ifMtu_get */

Rgds,
Sanjay

Dave Shield wrote:

2010/1/19 sanjaykumar <[email protected]>:

          I have a doubt regarding IF-MIB.
As I found that We get the data for if Table
from structure "ifTable_data  data;" an member of structure
"ifTable_rowreq_ctx * rowreq_ctx"
but what I observe that most of the member of  structure
"ifTable_data    data; "has been commented .
Then How does the If Table is getting updated ?


>From the final field of the ifTable_data structure:


        /*
         * some data kept externally
         */
        netsnmp_interface_entry *ifentry;

This structure is defined in the header file <net-snmp/data_access/interface.h>
and populated by the routines under if-mib/data_access

Dave

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Re: Doubt regarding IF-MIB

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