Esempio n. 1
0
int CNotifyEvent::Callback(SnmpTarget &target, Pdu &pdu, SnmpSocket fd, int status)
{
  Oid trapid;
  pdu.get_notify_id(trapid);
  (void)fd;

  // Make the callback if the trap passed the filters
  if ((m_snmp) && (notify_filter(trapid, target)))
  {
    int reason;

    if (SNMP_CLASS_TL_FAILED == status)
      reason = SNMP_CLASS_TL_FAILED;
    else
      reason = SNMP_CLASS_NOTIFICATION;

    //------[ call into the callback function ]-------------------------
    if (m_snmp->get_notify_callback())
      (m_snmp->get_notify_callback())(
          reason,
          m_snmp,                        // snmp++ session who owns the req
          pdu,                        // trap pdu
          target,                        // target
          m_snmp->get_notify_callback_data()); // callback data
  }
  return SNMP_CLASS_SUCCESS;
}
Esempio n. 2
0
void MainWindow::async_callback(int reason, Snmp * /*snmp*/, Pdu &pdu,
				SnmpTarget &target)
{
  Vb nextVb;
  int pdu_error;
  QString prefix_text;
  QString notify_text;

  push_button_get_next->setEnabled(true);

  // What is the reason for this callback?
  if (reason == SNMP_CLASS_NOTIFICATION)
  {
    prefix_text = "Trap:    ";

    // get the notify id for traps
    Oid id;
    pdu.get_notify_id(id);
    notify_text = QString(" ID: %1 Type %2 -- ").arg(id.get_printable())
                  .arg(pdu.get_type());
  }
  else if (reason == SNMP_CLASS_ASYNC_RESPONSE)
  {
    prefix_text = "Response ";
  }
  else if (reason == SNMP_CLASS_TIMEOUT)
  {
    prefix_text = "Timeout  ";
  }
  else
  {
    QString err = QString("\nDid not receive async response/trap: (%1) %2\n")
                  .arg(reason).arg(Snmp::error_msg(reason));
    text_edit_output->append(err);
  }


  // Look at the error status of the Pdu
  pdu_error = pdu.get_error_status();
  if (pdu_error)
  {
    QString err = "\nResponse contains error:\n";
    err += Snmp::error_msg(pdu_error);
    text_edit_output->append(err);
    return;
  }

  // The Pdu must contain at least one Vb
  if (pdu.get_vb_count() == 0)
  {
    QString err = "\nPdu is empty\n";
    text_edit_output->append(err);
    return;
  }

  for (int i=0; i<pdu.get_vb_count(); i++)
  {
    // Get the Vb of the Pdu
    pdu.get_vb(nextVb, i);

    // Get Oid and value from the Vb and display it
    line_edit_obj_id->setText(nextVb.get_printable_oid());
    line_edit_value->setText(nextVb.get_printable_value());

    text_edit_output->append(prefix_text +
			     target.get_address().get_printable() +
			     " -- " +
			     notify_text +
			     line_edit_obj_id->text() + " = " +
			     line_edit_value->text() + "\n");
  }

  // If we received a inform pdu, we have to send a response
  if (pdu.get_type() == sNMP_PDU_INFORM)
  {
    text_edit_output->append("Sending response to inform.\n");

    // just change the value of the first vb
    pdu.get_vb(nextVb, 0);
    nextVb.set_value("This is the response.");
    pdu.set_vb(nextVb, 0);
    snmp->response(pdu, target);
  }
}
Esempio n. 3
0
int wpdu::set_trap_info(snmp_pdu *raw_pdu, const Pdu& pdu) const
{
  Oid enterprise;
  Oid trapid; // validate caller has set this correctly
  pdu.get_notify_id( trapid);
  if ( !trapid.valid() || trapid.length() < 2 ) {
     cmu_snmp::free_pdu( raw_pdu);
     return SNMP_CLASS_INVALID_NOTIFYID;
  }


  raw_pdu->specific_type=0;

  // TODO: object should emit numeric instead of this kind of mess...
  if ( trapid == coldStart)
    raw_pdu->trap_type = V1_COLD_START;  // cold start
  else if ( trapid == warmStart)
    raw_pdu->trap_type = V1_WARM_START;  // warm start
  else if( trapid == linkDown)
    raw_pdu->trap_type = V1_LINK_DOWN;  // link down
  else if ( trapid == linkUp)
    raw_pdu->trap_type = V1_LINK_UP;  // link up
  else if ( trapid == authenticationFailure )
    raw_pdu->trap_type = V1_AUTH_FAILURE;  // authentication failure
  else if ( trapid == egpNeighborLoss)
    raw_pdu->trap_type = V1_EGP_NEIGHBOR_LOSS;  // egp neighbor loss
  else {
    raw_pdu->trap_type = V1_ENT_SPECIFIC;     // enterprise specific
                               // last oid subid is the specific value
                               // if 2nd to last subid is "0", remove it
                               // enterprise is always the notify oid prefix
   raw_pdu->specific_type = (int) trapid[(int) (trapid.length() - 1)];
   trapid.trim(1);
   if ( trapid[(int)(trapid.length() - 1)] == 0 )
     trapid.trim(1);
   enterprise = trapid;
  }

  if ( raw_pdu->trap_type != V1_ENT_SPECIFIC)
    pdu.get_notify_enterprise( enterprise);
  if ( enterprise.length() > 0) {
    // note!!  To the contrary, enterprise OID val is
    // copied here and raw_pdu->enterprise is freed in free_pdu
    // as it should be (HDN)
    // these are hooks into an SNMP++ oid
    // and therefor the raw_pdu enterprise
    // should not free them. null them out!!
    SmiLPOID rawOid;
    rawOid = enterprise.oidval();
    // HDN - enterprise is a local object, cannot simply assign pointer
    //raw_pdu->enterprise = rawOid->ptr;
    raw_pdu->enterprise_length = (int) rawOid->len;
    ACE_NEW_RETURN(raw_pdu->enterprise,
                   oid[raw_pdu->enterprise_length],-1);
    ACE_OS::memcpy((char *)raw_pdu->enterprise,(char *)rawOid->ptr,
                   raw_pdu->enterprise_length * sizeof(oid));
  }

  TimeTicks timestamp;
  pdu.get_notify_timestamp( timestamp);
  raw_pdu->time = ( unsigned long) timestamp;

  // HDN - set agent addr using the local hostname if possible
  char localHostName[MAXHOSTNAMELEN];
  Snmp::get_host_name(localHostName, MAXHOSTNAMELEN);
  if (ACE_OS::strlen(localHostName) > 0) {
    GenAddress addr(localHostName);
    OctetStr octet;
    addr.to_octet(octet);
    ACE_OS::memcpy(&(raw_pdu->agent_addr.sin_addr),
                   octet.data(),
                   octet.length());
  }

  return 0;
}