Okay.
I am not sure what went wrong here.
Can you please go through the below code snippet and try to find out
what could be the issue?
int forward_handler( netsnmp_pdu *pdu,
netsnmp_transport *transport,
netsnmp_trapd_handler *handler)
{
netsnmp_session session, *ss;
netsnmp_pdu *clone_v2_pdu;
int oldquick;
char buf[BUFSIZ], *cp;
DEBUGMSGTL(( "snmptrapd", "forward_handler (%s)\n",
handler->token));
#if 1 // MODIFICATION.. Converted SNMP v1 trap to V2 trap
netsnmp_pdu *v2_pdu = NULL;
if (pdu->command == SNMP_MSG_TRAP)
v2_pdu = convert_v1pdu_to_v2(pdu);
else
v2_pdu = pdu;
oldquick = snmp_get_quick_print();
snmp_set_quick_print(1);
#endif
snmp_sess_init( &session );
if (strchr( handler->token, ':') == NULL) {
snprintf( buf, BUFSIZ, "%s:%d", handler->token, SNMP_TRAP_PORT);
cp = buf;
} else {
cp = handler->token;
}
session.peername = cp;
//session.version = pdu->version; //ORIG.. commented for testing
session.version = v2_pdu->version; //Try 1
//session.version = SNMP_VERSION_2c; // Try 2
ss = snmp_open( &session );
if (!ss)
return NETSNMPTRAPD_HANDLER_FAIL;
/* XXX: wjh we should be caching sessions here and not always
reopening a session. It's very ineffecient, especially with v3
INFORMS which may require engineID probing */
clone_v2_pdu = snmp_clone_pdu(v2_pdu);
if (clone_v2_pdu->transport_data) {
free(clone_v2_pdu->transport_data);
clone_v2_pdu->transport_data = NULL;
clone_v2_pdu->transport_data_length = 0;
}
if (!snmp_send( ss, clone_v2_pdu )) {
snmp_sess_perror("Forward failed", ss);
snmp_free_pdu(clone_v2_pdu);
snmp_free_pdu(v2_pdu);
}
snmp_close( ss );
return NETSNMPTRAPD_HANDLER_OK;
}
thank you
renjith
-----Original Message-----
From: [email protected] [mailto:[email protected]] On
Behalf Of Dave Shield
Sent: Tuesday, October 19, 2010 6:58 PM
To: Renjith R. V.
Cc: [email protected]
Subject: Re: how to identify variable 'type' and 'value' from pdu
structure
On 19 October 2010 14:20, Renjith R. V. <[email protected]>
wrote:
> I haven't created any new session.
> The session related code in forward_handler() is attached below.
> I have updated session.version with the version available in v2_pdu
> which is created using convert_v1pdu_to_v2().
Yes - that should work.
The error you were getting before probably came from the earlier code
session.version = pdu->version;
(since the original pdu was v1)
Dave
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