Greetings to all.
I have written my won sub-agent for my MIB. Below follows the relevant code
for the same:
void *VAR;
oid systemInfo_variables_oid[] = { *1,3,6,1,4,1,6305,1,10,1,2,1* };
struct variable4 systemInfo_variables[] = {
/* magic number , variable type , ro/rw , callback fn , L,
oidsuffix */
#define INDEX 1
{INDEX, ASN_UNSIGNED, RONLY, var_callTypeStatsNotfyAttrTable, 4, { 2,2,
1, 1 }},
#define TOTALCALLHOLDTIME 2
{TOTALCALLHOLDTIME, ASN_UNSIGNED, RONLY,
var_callTypeStatsNotfyAttrTable, 4, { 2,2, 1, 2 }},
};
void
init_systemInfo(void)
{
DEBUGMSGTL(("systemInfo", "Initializing\n"));
REGISTER_MIB("systemInfo", systemInfo_variables, variable4,
systemInfo_variables_oid);
}
unsigned char *
var_callTypeStatsNotfyAttrTable(struct variable *vp,
oid *name,
size_t *length,
int exact,
size_t *var_len,
WriteMethod **write_method)
{
int i,in_id, value1;
if (header_simple_table(vp,name,length,exact,var_len,write_method, 2)
== MATCH_FAILED )
return NULL;
printf("\nOID received=");
for(i=0;i<*length;i++)
printf("%d.",name[i]);
in_id = name[(*length)-1];
printf("\nin_id fetched = %d", in_id);
printf("\nvp->magic = %d",vp->magic);
switch (vp->magic)
{
case INDEX:
value1 = junk1[in_id-1].index;
printf("\n%d",value1);
VAR = (int *) &value1;
return (u_char *) VAR;
case TOTALCALLHOLDTIME:
value1 = junk1[in_id-1].CallHoldTime;
printf("\n%d", value1);
VAR = (int *) &value1;
return (u_char *) VAR;
default:
printf("\nDefault case");
ERROR_MSG("");
}
return NULL;
}
When I do a snmpget on any OID pertaining to any object in my MIB, I observe
that OID passed by the master agent is always
1.3.6.1.4.1.6305.1.10.1.2.1.2.2.1.1.1.
The master agent always calls the var_callTypeStatsNotfyAttrTable() with OID
of the very first element in my table. I found out that in the code
generated by mib2c, the array of OID was defined using variable4 and while
calling REGISTER_MIB, datatype passed was variable7. I tried passing the
same datatype also at both the places, yet I am not getting the right values
using snmpgetnext.
Can someone provide me with any pointers to solve this.. Thanks.
Shivani
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