Re: problem in SNMPSET on table with string data type columns
Hi Bill,
Thanks for the reply.
Here for registration of the table we are using below
functions:
netsnmp_create_handler_registration
netsnmp_create_table_data
netsnmp_table_helper_add_indexes
netsnmp_register_table
The problem we are facing is that if our table is columns,
c1, c2, and c3, and if c1 is of string data type.
Now if we are doing “snmpset
c1 val1 c2 val2 c3 val3” we are getting these values
val1, val2 and val3 properly in code and they are getting properly updated in
the table.
But if we are giving columns in different order like “snmpset
c3 val3 c1 val1 c2 val2” now we are not getting the
val1 value of string column c1 , what we gave in the SNMPSET.
For integer columns we are getting proper values
irrespective of their order in SNMPSET command. But if we are not giving the
string column in proper order in SNMPSET we are not getting its value. Only
getting
some garbage value (integer value of pervious column value in snmpset).
Could you please advise what could be the issue here?
Thanks and regards
S Sarath
On Wednesday, September 3, 2014 7:38 PM, Bill Fenner fen...@gmail.com wrote:
I've had trouble with multiple requests in ordered table_iterator tables. I
have no idea if that's what you're using, since you didn't give much info about
your use case. I just worked around it by injecting the serialize handler:
int result = netsnmp_register_table_iterator( reg, iinfo );
assert( result == MIB_REGISTERED_OK );
int injected = netsnmp_inject_handler( reg, netsnmp_get_serialize_handler()
);
assert( injected == SNMPERR_SUCCESS );
Bill
On Wed, Sep 3, 2014 at 3:19 AM, sarath azad saraths...@yahoo.co.in wrote:
Hello,
Could you please help in solving the below problem, in doing SNMPSET for
tables with string data?
thanks and regards
S Sarath
On Friday, August 22, 2014 9:03 PM, sarath azad saraths...@yahoo.co.in wrote:
Hello,
Could you please help in resolving the below issue?
For SNMPSET on a table which contains a column of
string data type, if we are giving values of all the columns in the
single SNMPSET query, then we are getting the values of the string column
properly,
only if the order of column values, in the query is same as the order of column
in the table.
ie. snmpset -v 2c -c public system-IP column
1 column 1 value column 2 column 2 value ...
If we are giving the values in the query in different order, then
for integer columns we are getting values properly as given in the query. But
for the string columns we are only getting some junk characters or value in the
previous column in the query.
The table handler function is written as below:
Int tableHandlerFunction
(netsnmp_mib_handler *handler, netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
netsnmp_request_info
*request;
netsnmp_table_request_info
*table_info;
char data[100];
for
(request = requests; request; request = request-next)
{
table_info =
netsnmp_extract_table_info(request);
switch (reqinfo-mode)
{
case MODE_SET_ACTION:
switch (table_info-colnum)
{
case COLUMN_STRING_COLUMN:
strcpy( data ,
requests-requestvb-val.string));
break;
thanks and regards
S Sarath
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Re: problem in SNMPSET on table with string data type columns
The only advice I have is to try the serialize handler.
Bill
On Thu, Sep 4, 2014 at 3:33 AM, sarath azad saraths...@yahoo.co.in wrote:
Hi Bill,
Thanks for the reply.
Here for registration of the table we are using below functions:
netsnmp_create_handler_registration
netsnmp_create_table_data
netsnmp_table_helper_add_indexes
netsnmp_register_table
The problem we are facing is that if our table is columns, c1, c2, and c3,
and if c1 is of string data type.
Now if we are doing “snmpset c1 val1 c2 val2 c3 val3” we are
getting these values val1, val2 and val3 properly in code and they are
getting properly updated in the table.
But if we are giving columns in different order like “snmpset c3 val3 c1
val1 c2 val2” now we are not getting the val1 value of string column
c1 , what we gave in the SNMPSET.
For integer columns we are getting proper values irrespective of their
order in SNMPSET command. But if we are not giving the string column in
proper order in SNMPSET we are not getting its value. Only getting some
garbage value (integer value of pervious column value in snmpset).
Could you please advise what could be the issue here?
Thanks and regards
S Sarath
On Wednesday, September 3, 2014 7:38 PM, Bill Fenner fen...@gmail.com
wrote:
I've had trouble with multiple requests in ordered table_iterator tables.
I have no idea if that's what you're using, since you didn't give much
info about your use case. I just worked around it by injecting the
serialize handler:
int result = netsnmp_register_table_iterator( reg, iinfo );
assert( result == MIB_REGISTERED_OK );
int injected = netsnmp_inject_handler( reg,
netsnmp_get_serialize_handler() );
assert( injected == SNMPERR_SUCCESS );
Bill
On Wed, Sep 3, 2014 at 3:19 AM, sarath azad saraths...@yahoo.co.in
wrote:
Hello,
Could you please help in solving the below problem, in doing SNMPSET for
tables with string data?
thanks and regards
S Sarath
On Friday, August 22, 2014 9:03 PM, sarath azad saraths...@yahoo.co.in
wrote:
Hello,
Could you please help in resolving the below issue?
For SNMPSET on a table which contains a column of string data type, if
we are giving values of all the columns in the single SNMPSET query, then
we are getting the values of the string column properly, only if the order
of column values, in the query is same as the order of column in the table.
ie. snmpset -v 2c -c public system-IP column 1 column 1 value
column 2 column 2 value ...
If we are giving the values in the query in different order, then for
integer columns we are getting values properly as given in the query. But
for the string columns we are only getting some junk characters or value in
the previous column in the query.
The table handler function is written as below:
Int tableHandlerFunction (netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
netsnmp_request_info *request;
netsnmp_table_request_info *table_info;
char data[100];
for (request = requests; request; request = request-next)
{
table_info = netsnmp_extract_table_info(request);
switch (reqinfo-mode)
{
case MODE_SET_ACTION:
switch (table_info-colnum)
{
case COLUMN_STRING_COLUMN:
strcpy( data ,
requests-requestvb-val.string));
break;
thanks and regards
S Sarath
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MFD compiled extension agent: snmpget returns Timeout: No Response from localhost:1161.
I'm new to Linux. I'm writing an SNMP extension agent using the MIB for Dummies (http://www.net-snmp.org/wiki/index.php/MIB_for_Dummies) config file (mib2c.mfd.conf). I successfully created my executable, adeSensorsTable, using my own adeSensorsTable.MIB (mib2c util auto-generated the C source code from adeSensorsTable.MIB, using mib2c.mfd.conf config file, which I compiled into an executable). I then ran my executable: On my 1st terminal, I typed: ./adeSensorsTable -f -L -DadeSensorsTable -M localhost:1161 It returns: No log handling enabled - turning on stderr logging registered debug token adeSensorsTable, 1 adeSensorsTable:init_adeSensorsTable: Registering adeSensorsTable as a mibs-for-dummies table. - On my 2nd terminal of the same PC: I then tried to use snmpget to reach one of my extension agent objects: To do that I first got the object OID using snmptranslate: snmptranslate -On x-MIB::adeSensorsTable.aDESensorsEntry.vrms and got: .1.3.6.1.4.1.43905.1.1.1.1.2 I then ran: snmpget -v 1 -c public localhost:1161 .1.3.6.1.4.1.43905.1.1.1.1.2 It returns: Timeout: No Response from localhost:1161. - Back on the 1st terminal where my snmp extension agent binary is running, adeSensorsTable, I have : Connection from UDP: [127.0.0.1]:55176-[127.0.0.1] Connection from UDP: [127.0.0.1]:55176-[127.0.0.1] Connection from UDP: [127.0.0.1]:55176-[127.0.0.1] Connection from UDP: [127.0.0.1]:55176-[127.0.0.1] Connection from UDP: [127.0.0.1]:55176-[127.0.0.1] I'm stumped here! I'd appreciate if you someone can provide some pointers on this. Thanks in advance! -- Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/___ Net-snmp-coders mailing list Net-snmp-coders@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/net-snmp-coders
