May be i've found the problem, given below is the code generated after mib2c
netsnmp_variable_list *
sensorTable_get_next_data_point(void **my_loop_context,
void **my_data_context,
netsnmp_variable_list * put_index_data,
netsnmp_iterator_info *mydata)
{
struct sensorTable_entry *entry =
(struct sensorTable_entry *) *my_loop_context;
netsnmp_variable_list *idx = put_index_data;
if (entry) {
snmp_set_var_value(idx, entry->sensorIndex,
sizeof(entry->sensorIndex));
idx = idx->next_variable;
*my_data_context = (void *) entry;
*my_loop_context = (void *) entry->next;
} else {
return NULL;
}
}
One can notice that the function does not return any value if entry is
not null, Should one be returning idx here or anything else.
I put idx, then the crash goes away, but the table is not returned for
snmpwalk.... I am stumped.
Thanks
Sridhar
On 5/19/06, Sridhar Addagada <[EMAIL PROTECTED]> wrote:
I ran into few problems when compiling my mib using
mib2c.iterate.conf. Mentioned below is the sample of the table.
1. The data structure that got generated "sensorTable_entry" had
problem. The sensorIndex was repeted twice.
struct sensorTable_entry {
/* Index values */
long sensorIndex;
/* Column values */
long sensorIndex;
long sensorSdrVersion;
.....
....
}
2. bad function definition sensorTable_createEntry(long sensorIndex,)
as you can see the function prototype has a problem.
3. after fixing the above two and populating the table using a dummy
function inviked in initialize_table_sensorTable, I had a crash when i
performed snmpwalk. Attached is the backtrace from the crash.
Hope someone can take a look and give me pointer to fix this, the
crash problem but the problem with mib2c.iterate.conf, a perl expert
need to take a look.
Thanks,
Sridhar
-------------------------------- MIB-EXTRACT
---------------------------------------------
SensorEntry ::= SEQUENCE {
sensorIndex INTEGER, -- 01
sensorSdrVersion INTEGER, -- 02
sensorRecordType INTEGER, -- 03
sensorOwnerId INTEGER, -- 04
sensorOwnerLun INTEGER, -- 05
sensorNumber INTEGER, -- 06
sensorEntityId INTEGER, -- 07
sensorEntityInstance INTEGER, -- 08
sensorInitialization INTEGER, -- 09
sensorCapabilities INTEGER, -- 10
sensorType INTEGER, -- 11
sensorEvent INTEGER, -- 12
sensorAssertionEventMask INTEGER, -- 13
sensorDeassertionEventMask INTEGER, -- 14
sensorMask INTEGER, -- 15
sensorUnits INTEGER, -- 16
sensorBaseUnit INTEGER, -- 17
sensorModifierUnit INTEGER, -- 18
sensorLinearization INTEGER, -- 19
sensorM INTEGER, -- 20
sensorTolerance INTEGER, -- 21
sensorB INTEGER, -- 22
sensorAccuracy INTEGER, -- 23
sensorAccuracyExp INTEGER, -- 24
sensorRExp INTEGER, -- 25
sensorBExp INTEGER, -- 26
sensorCharacteristicFlags INTEGER, -- 27
sensorNominalReading INTEGER, -- 28
sensorNormalMaximum INTEGER, -- 29
sensorNormalMinimum INTEGER, -- 30
sensorMaximumReading INTEGER, -- 31
sensorMinimumReading INTEGER, -- 32
sensorUpperNonRecoverableThreshold INTEGER, -- 33
sensorUpperCriticalThreshold INTEGER, -- 34
sensorUpperNonCriticalThreshold INTEGER, -- 35
sensorLowerNonRecoverableThreshold INTEGER, -- 36
sensorLowerCriticalThreshold INTEGER, -- 37
sensorLowerNonCriticalThreshold INTEGER, -- 38
sensorPositiveGoingThresholdHysteresis INTEGER, -- 39
sensorNegativeGoingThresholdHysteresis INTEGER, -- 40
sensorOem INTEGER, -- 41
sensorIdStringType INTEGER, -- 42
sensorIdString DisplayString, -- 43
}
Thanks
Sridhar
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