/**
* 向管理进程发送Trap报文
*
* @throws IOException
*/
public void sendPDU() throws IOException {
// 设置 target
CommunityTarget target = new CommunityTarget();
target.setAddress(targetAddress);
// 通信不成功时的重试次数
target.setRetries(2);
// 超时时间
target.setTimeout(1500);
// snmp版本
target.setVersion(SnmpConstants.version2c);
// 创建 PDU
PDU pdu = new PDU();
pdu.add(
new VariableBinding(new OID(".1.3.6.1.2.3377.10.1.1.1.1"), new OctetString("SnmpTrap")));
pdu.add(new VariableBinding(new OID(".1.3.6.1.2.3377.10.1.1.1.2"), new OctetString("JavaEE")));
pdu.add(
new VariableBinding(
new OID(".1.3.6.1.4.1.12612.220.11.1.3.0.1"), new OctetString("test_barco")));
pdu.setType(PDU.TRAP);
// 向Agent发送PDU，并接收Response
ResponseEvent respEvnt = snmp.send(pdu, target);
// 解析Response
if (respEvnt != null && respEvnt.getResponse() != null) {
Vector<VariableBinding> recVBs = respEvnt.getResponse().getVariableBindings();
for (int i = 0; i < recVBs.size(); i++) {
VariableBinding recVB = recVBs.elementAt(i);
System.out.println(recVB.getOid() + " : " + recVB.getVariable());
}
}
}
VariableBinding getVarBindForSetRequest(String oid, int type, String value) {
VariableBinding vb = new VariableBinding(new OID(oid));
if (value != null) {
Variable variable;
switch (type) {
case DSnmpMibRecord.VALUE_TYPE_INTEGER32:
variable = new Integer32(Integer.parseInt(value));
break;
case DSnmpMibRecord.VALUE_TYPE_UNSIGNED_INTEGER32:
variable = new UnsignedInteger32(Long.parseLong(value));
break;
case DSnmpMibRecord.VALUE_TYPE_OCTET_STRING:
variable = new OctetString(value);
break;
case DSnmpMibRecord.VALUE_TYPE_NULL:
variable = new Null();
break;
case DSnmpMibRecord.VALUE_TYPE_OID:
variable = new OID(value);
break;
case DSnmpMibRecord.VALUE_TYPE_TIMETICKS:
variable = new TimeTicks(Long.parseLong(value));
break;
case DSnmpMibRecord.VALUE_TYPE_IP_ADDRESS:
variable = new IpAddress(value);
break;
default:
throw new IllegalArgumentException("Variable type " + type + " not supported");
}
vb.setVariable(variable);
}
return vb;
}
/**
* Encodes a <code>Variable</code> to an <code>OutputStream</code>.
*
* @param outputStream an <code>OutputStream</code>.
* @throws IOException if an error occurs while writing to the stream.
*/
@Override
public void encodeBER(OutputStream outputStream) throws IOException {
BER.encodeHeader(outputStream, type, getBERPayloadLength());
if (type == PDU.V1TRAP) {
enterprise.encodeBER(outputStream);
agentAddress.encodeBER(outputStream);
genericTrap.encodeBER(outputStream);
specificTrap.encodeBER(outputStream);
timestamp.encodeBER(outputStream);
} else {
requestID.encodeBER(outputStream);
errorStatus.encodeBER(outputStream);
errorIndex.encodeBER(outputStream);
}
int vbLength = 0;
for (VariableBinding variableBinding : variableBindings) {
vbLength += variableBinding.getBERLength();
}
BER.encodeHeader(outputStream, BER.SEQUENCE, vbLength);
for (VariableBinding vb : variableBindings) {
if (!isVariableV1(vb.getVariable())) {
throw new IOException("Cannot encode Counter64 into a SNMPv1 PDU");
}
vb.encodeBER(outputStream);
}
}
public void verify(VariableBinding vb) {
assertNotNull("variable binding should not be null", vb);
Variable val = vb.getVariable();
assertNotNull("variable should not be null", val);
assertEquals("OID (value: " + val + ")", new OID(m_expectedOid), vb.getOid());
assertEquals("syntax", m_expectedSyntax, vb.getSyntax());
assertEquals("value", m_expectedValue, val);
}
/**
* The method getAsString(Oid oid) is using the @see SnmpManager#get to get a String value of the
* specified OID.
*
* @param oid - the requested OID
* @return - a String with the result from the specified OID
* @throws SNMPTimeOutException - will be thrown if a timeout with request happens
* @throws snmp.exceptions.OIDDoesNotExistsException - will be thrown if the specified OID does
* not exist
* @throws PDURequestFailedException - will be thrown if an error occurs within the request
*/
public String getAsString(OID oid)
throws SNMPTimeOutException, PDURequestFailedException, OIDDoesNotExistsException {
// extract the response PDU (could be null if timed out)
VariableBinding ret = get(new OID[] {oid}).get(0);
String response = ret.getVariable().toString();
if (response.equals("noSuchObject")) throw new OIDDoesNotExistsException();
return response;
}
/**
* Decodes a <code>Variable</code> from an <code>InputStream</code>.
*
* @param inputStream an <code>InputStream</code> containing a BER encoded byte stream.
* @throws IOException
*/
@Override
public void decodeBER(BERInputStream inputStream) throws IOException {
MutableByte pduType = new MutableByte();
int length = BER.decodeHeader(inputStream, pduType);
int pduStartPos = (int) inputStream.getPosition();
switch (pduType.getValue()) {
case PDU.SET:
case PDU.GET:
case PDU.GETNEXT:
case PDU.V1TRAP:
case PDU.RESPONSE:
break;
// The following PDU types are not supported by the SNMPv1 standard!
case PDU.NOTIFICATION:
case PDU.INFORM:
if (SNMP4JSettings.isAllowSNMPv2InV1()) {
break;
}
// fall through
default:
throw new IOException("Unsupported PDU type: " + pduType.getValue());
}
this.setType(pduType.getValue());
if (getType() == PDU.V1TRAP) {
enterprise.decodeBER(inputStream);
agentAddress.decodeBER(inputStream);
genericTrap.decodeBER(inputStream);
specificTrap.decodeBER(inputStream);
timestamp.decodeBER(inputStream);
} else {
requestID.decodeBER(inputStream);
errorStatus.decodeBER(inputStream);
errorIndex.decodeBER(inputStream);
}
// reusing pduType here to save memory ;-)
pduType = new BER.MutableByte();
int vbLength = BER.decodeHeader(inputStream, pduType);
if (pduType.getValue() != BER.SEQUENCE) {
throw new IOException("Encountered invalid tag, SEQUENCE expected: " + pduType.getValue());
}
// rest read count
int startPos = (int) inputStream.getPosition();
variableBindings = new Vector<>();
while (inputStream.getPosition() - startPos < vbLength) {
VariableBinding vb = new VariableBinding();
vb.decodeBER(inputStream);
if (!isVariableV1(vb.getVariable())) {
throw new MessageException("Counter64 encountered in SNMPv1 PDU " + "(RFC 2576 §4.1.2.1)");
}
variableBindings.add(vb);
}
if (BER.isCheckSequenceLength()) {
BER.checkSequenceLength(vbLength, (int) inputStream.getPosition() - startPos, this);
BER.checkSequenceLength(length, (int) inputStream.getPosition() - pduStartPos, this);
}
}
private SnmpOidValuePair outputResponse(VariableBinding vb) {
SnmpOidValuePair oidval = new SnmpOidValuePair();
oidval.oid = vb.getOid().toString();
oidval.value_str = vb.getVariable().toString();
if (m_snmpResponseHandler != null) {
m_snmpResponseHandler.responseReceived(oidval);
}
return oidval;
}
public void set(VariableBinding binding) {
switch (binding.getOid().get(9)) {
case 1:
setUdpEndpointLocalAddressType(binding.getVariable().toInt());
break;
case 2:
setUdpEndpointLocalAddress(binding.getVariable().toString());
break;
case 3:
setUdpEndpointLocalPort(binding.getVariable().toInt());
break;
case 4:
setUdpEndpointRemoteAddressType(binding.getVariable().toInt());
break;
case 5:
setUdpEndpointRemoteAddress(binding.getVariable().toString());
break;
case 6:
setUdpEndpointRemotePort(binding.getVariable().toInt());
break;
case 7:
setUdpEndpointInstance(binding.getVariable().toInt());
break;
case 8:
setUdpEndpointProcess(binding.getVariable().toInt());
break;
}
}
public void set(VariableBinding binding) {
switch (binding.getOid().get(10)) {
case 1:
setEventIndex(binding.getVariable().toInt());
break;
case 2:
setEventDescription(binding.getVariable().toString());
break;
case 3:
setEventType(binding.getVariable().toInt());
break;
case 4:
setEventCommunity(binding.getVariable().toString());
break;
case 5:
setEventLastTimeSent(binding.getVariable().toInt());
break;
case 6:
setEventOwner(binding.getVariable().toString());
break;
case 7:
setEventStatus(binding.getVariable().toInt());
break;
}
}
/**
* Add directly a VariableBinding to the map it will be stored as a key/value and the original
* snmp datas will be lost only not
*
* @param vb
*/
public boolean addVariable(VariableBinding vb) {
boolean retValue = false;
if (vb == null) {
logger.error("null variable to add ?");
} else if (!vb.isException()) {
OID vbOid = vb.getOid();
put(vbOid, convertVar(vb.getVariable()));
retValue = true;
} else {
errors.put(vb.getOid(), vb.getSyntax());
int exception = vb.getSyntax();
String exceptionName = "";
switch (exception) {
case SMIConstants.EXCEPTION_END_OF_MIB_VIEW:
exceptionName = "End of mib view";
break;
case SMIConstants.EXCEPTION_NO_SUCH_INSTANCE:
exceptionName = "No such instance";
break;
case SMIConstants.EXCEPTION_NO_SUCH_OBJECT:
exceptionName = "No such object";
break;
default:
exceptionName = "Unknown exception";
break;
}
logger.trace("Exception " + exceptionName + " for " + vb.getOid());
}
return retValue;
}
/**
* @param ip
* @param community
*/
public static void snmpGetList(String ip, String community, List<String> oidList) {
CommunityTarget target = SnmpUtil.createDefault(ip, community);
Snmp snmp = null;
try {
PDU pdu = new PDU();
for (String oid : oidList) {
pdu.add(new VariableBinding(new OID(oid)));
}
DefaultUdpTransportMapping transport = new DefaultUdpTransportMapping();
transport.listen();
snmp = new Snmp(transport);
System.out.println("------->发送消息<-------");
pdu.setType(PDU.GET);
ResponseEvent respEvent = snmp.send(pdu, target);
System.out.println("PeerAddress:" + respEvent.getPeerAddress());
PDU response = respEvent.getResponse();
if (response == null) {
System.out.println("response is null, request time out");
} else {
System.out.println("response pdu size is " + response.size());
for (int i = 0; i < response.size(); i++) {
VariableBinding vb = response.get(i);
System.out.println(vb.getOid() + " = " + vb.getVariable());
}
}
System.out.println("SNMP GET List OID value finished !");
} catch (Exception e) {
e.printStackTrace();
System.out.println("SNMP GetList Exception:" + e);
} finally {
if (snmp != null) {
try {
snmp.close();
} catch (IOException ex1) {
snmp = null;
}
}
}
}
@Override
protected int getBERPayloadLengthPDU() {
if (getType() != PDU.V1TRAP) {
return super.getBERPayloadLengthPDU();
} else {
int length = 0;
// length for all vbs
for (VariableBinding variableBinding : variableBindings) {
length += variableBinding.getBERLength();
}
length += BER.getBERLengthOfLength(length) + 1;
length += agentAddress.getBERLength();
length += enterprise.getBERLength();
length += genericTrap.getBERLength();
length += specificTrap.getBERLength();
length += timestamp.getBERLength();
return length;
}
}
/**
* Method which takes a single OID and returns the response from the agent as a String.
*
* @param oid
* @return
* @throws IOException
*/
public String getAsString(OID... oid) throws IOException {
// ResponseEvent event = get(new OID[]{oid});
// return event.getResponse().get(0).getVariable().toString();
ResponseEvent event = get(oid);
PDU response = event.getResponse();
int size = oid.length;
// VariableBinding variableBinding=response.get(0);
// Variable variable=variableBinding.getVariable();
// String varStirng=variable.toString();
// return varStirng;
StringBuilder builder = new StringBuilder();
for (int i = 0; i < size; i++) {
VariableBinding variableBinding = response.get(i);
Variable variable = variableBinding.getVariable();
String varStirng = variable.toString();
String oi = variableBinding.getOid().toString();
builder.append("oid: ").append(oi).append(" var: ").append(varStirng).append("\n");
}
return builder.toString();
}
private boolean processWalk(PDU response, PDU request, OID rootOID) throws SnmpException {
if ((response == null)
|| (response.getErrorStatus() != 0)
|| (response.getType() == PDU.REPORT)) {
return true;
}
boolean finished = false;
OID lastOID = request.get(0).getOid();
for (int i = 0; (!finished) && (i < response.size()); i++) {
VariableBinding vb = response.get(i);
if ((vb.getOid() == null)
|| (vb.getOid().size() < rootOID.size())
|| (rootOID.leftMostCompare(rootOID.size(), vb.getOid()) != 0)) {
finished = true;
} else if (Null.isExceptionSyntax(vb.getVariable().getSyntax())) {
outputResponse(vb);
finished = true;
} else if (vb.getOid().compareTo(lastOID) <= 0) {
throw new SnmpException(
"Variable received is not lexicographic successor of requested one:"
+ vb.toString()
+ " <= "
+ lastOID);
} else {
outputResponse(vb);
lastOID = vb.getOid();
}
}
if (response.size() == 0) {
finished = true;
}
if (!finished) {
VariableBinding next = response.get(response.size() - 1);
next.setVariable(new Null());
request.set(0, next);
request.setRequestID(new Integer32(0));
}
return finished;
}
public void browse(URI url, SnmpUriCallback callback, Object userObject)
throws UnknownHostException {
Request request = createSnmpRequest(url);
PDU pdu = request.getPdu();
switch (request.getType()) {
case GET:
pdu.setType(PDU.GET);
pdu.addAll(VariableBinding.createFromOIDs(request.getOIDs()));
sendSnmpRequest(request, pdu, url, callback, userObject);
break;
case NEXT:
pdu.setType(PDU.GETNEXT);
pdu.addAll(VariableBinding.createFromOIDs(request.getOIDs()));
sendSnmpRequest(request, pdu, url, callback, userObject);
break;
case SUBTREE:
TreeUtils treeUtils = new TreeUtils(snmp, pduFactory);
TreeListener treeListener = new AsyncTreeListener(url, callback);
treeUtils.walk(request.getTarget(), request.getOIDs(), userObject, treeListener);
break;
}
}
public static List<String> get(
Snmp snmp, String address, String community, int version, int retry, String[] oids) {
List<String> list = new ArrayList<String>();
Address targetAddress = GenericAddress.parse(address);
CommunityTarget target = new CommunityTarget();
target.setCommunity(new OctetString(community));
target.setAddress(targetAddress);
target.setVersion(version);
target.setTimeout(1000);
target.setRetries(retry);
PDU pdu = new PDU();
pdu.setType(PDU.GET);
for (String oid : oids) {
pdu.add(new VariableBinding(new OID(oid)));
}
try {
ResponseEvent response = snmp.send(pdu, target);
PDU resposePdu = response.getResponse();
if (resposePdu != null) {
Vector<?> v = resposePdu.getVariableBindings();
for (Object o : v) {
if (o instanceof VariableBinding) {
VariableBinding vb = (VariableBinding) o;
String r = vb.getVariable().toString();
list.add(r);
}
}
}
} catch (IOException e) {
e.printStackTrace();
}
return list;
}
/**
* Creates a static managed object group for the sub-tree with the specified root OID.
*
* @param root the root OID of the sub-tree to be registered by this managed object.
* @param vbs the variable bindings to be returned in this sub-tree.
*/
public StaticMOGroup(OID root, VariableBinding[] vbs) {
this.root = root;
this.scope = new DefaultMOScope(root, true, root.nextPeer(), false);
for (VariableBinding vb : vbs) {
if ((vb.getOid() != null) && (vb.getVariable() != null)) {
if ((vb.getOid().size() >= root.size())
&& (vb.getOid().leftMostCompare(root.size(), root) == 0)) {
this.vbs.put(vb.getOid(), vb.getVariable());
}
}
}
}
/**
* Read a variable saved into @DriverConfiguration object
*
* @param propertyConfiguration driver configuration object
* @throws GenericException if configuration fatal error
*/
@Override
public void readValue(DriverConfiguration propertyConfiguration) throws GenericException {
try {
ResponseEvent response = snmpGet(String.valueOf(propertyConfiguration.getValue()));
if (response != null) {
if (log.isDebugEnabled()) {
log.debug("Got Snmp Get Response from Agent");
}
PDU responsePDU = response.getResponse();
if (responsePDU != null) {
int errorStatus = responsePDU.getErrorStatus();
if (errorStatus == PDU.noError) {
Vector<? extends VariableBinding> variableBindings = responsePDU.getVariableBindings();
if (log.isDebugEnabled()) {
log.debug(String.format("Snmp Get Response = %s", variableBindings));
}
VariableBinding variableBinding = variableBindings.get(0);
Variable variable = variableBinding.getVariable();
Object value = convert(variable, getValueType(variable));
setValue(propertyConfiguration, value);
} else {
notifyResponse(response, propertyConfiguration.getName());
}
} else {
if (log.isDebugEnabled()) {
log.debug("Error: Response PDU is null");
}
}
} else {
notifyResponse(response, propertyConfiguration.getName());
}
} catch (Exception e) {
throw new GenericException(e);
}
}
public static List<String[]> getTable(
Snmp snmp, String address, String community, int version, int retry, String[] colOids) {
List<String[]> list = new ArrayList<String[]>();
Address targetAddress = GenericAddress.parse(address);
CommunityTarget target = new CommunityTarget();
target.setCommunity(new OctetString(community));
target.setAddress(targetAddress);
target.setVersion(version);
target.setTimeout(1000);
target.setRetries(retry);
PDU pdu = new PDU();
pdu.setType(PDU.GETNEXT);
for (String oid : colOids) {
pdu.add(new VariableBinding(new OID(oid)));
}
int i = 0;
String firstOid = colOids[0];
Vector<VariableBinding> row = null;
do {
row = getTableRow(snmp, target, colOids, firstOid);
if (row != null && colOids.length == row.size()) {
String[] ss = new String[colOids.length];
for (int n = 0; n < colOids.length; n++) {
VariableBinding vb = row.get(n);
String r = vb.getVariable().toString();
colOids[n] = vb.getOid().toString();
ss[n] = r;
}
list.add(ss);
}
} while (i++ < 200 && row != null);
return list;
}
private static Vector<VariableBinding> getTableRow(
Snmp snmp, CommunityTarget target, String[] colOids, String firstOid) {
PDU pdu = new PDU();
pdu.setType(PDU.GETNEXT);
for (String oid : colOids) {
pdu.add(new VariableBinding(new OID(oid)));
}
Vector<VariableBinding> v = null;
try {
ResponseEvent response = snmp.send(pdu, target);
PDU resposePdu = response.getResponse();
if (resposePdu != null) {
v = resposePdu.getVariableBindings();
if (v != null && v.size() > 0) {
VariableBinding vb = v.get(0);
String oid = vb.getOid().toString();
if (!oid.startsWith(firstOid)) return null;
}
}
} catch (IOException e) {
e.printStackTrace();
}
return v;
}
public void processPdu(CommandResponderEvent pRequest) {
final PDU requestPdu = pRequest.getPDU();
if (requestPdu == null) {
return;
}
try {
final PDU responsePdu = new PDU(requestPdu);
responsePdu.setType(PDU.RESPONSE);
if (requestPdu.getType() == PDU.GET) {
for (VariableBinding binding : responsePdu.toArray()) {
final OID oid = binding.getOid();
final String path = jmxMib.getPathFromOid(oid.toString());
if (path == null) {
binding.setVariable(Null.noSuchObject);
continue;
}
final JmxAttribute attribute = jmxIndex.getAttributeAtPath(path);
if (attribute == null) {
binding.setVariable(Null.noSuchObject);
continue;
}
final Variable variable = getVariableFromJmxAttribute(attribute);
if (variable != null) {
binding.setVariable(variable);
}
}
} else if (requestPdu.getType() == PDU.GETNEXT) {
for (VariableBinding binding : responsePdu.toArray()) {
final OID oid = binding.getOid();
final String next = jmxMib.getNextOidFromOid(oid.toString());
if (next == null) {
binding.setVariable(Null.noSuchObject);
continue;
}
final OID nextOid = new OID(next);
binding.setOid(nextOid);
final String path = jmxMib.getPathFromOid(nextOid.toString());
if (path == null) {
binding.setVariable(Null.noSuchObject);
continue;
}
final JmxAttribute attribute = jmxIndex.getAttributeAtPath(path);
if (attribute == null) {
binding.setVariable(Null.noSuchObject);
continue;
}
final Variable variable = getVariableFromJmxAttribute(attribute);
if (variable != null) {
binding.setVariable(variable);
}
}
} else {
}
pRequest.getStateReference().setTransportMapping(pRequest.getTransportMapping());
pRequest
.getMessageDispatcher()
.returnResponsePdu(
pRequest.getMessageProcessingModel(),
pRequest.getSecurityModel(),
pRequest.getSecurityName(),
pRequest.getSecurityLevel(),
responsePdu,
pRequest.getMaxSizeResponsePDU(),
pRequest.getStateReference(),
new StatusInformation());
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* This method will be called whenever a pdu is received on the given port specified in the
* listen() method.
*/
public synchronized void processPdu(CommandResponderEvent cmdRespEvent) {
logger.info("Received PDU...");
PDU pdu = cmdRespEvent.getPDU();
if (pdu != null) {
try {
Event event;
Map<String, String> headers;
StringBuilder stringBuilder = new StringBuilder();
// getVariableBindings: Gets the variable binding vector.
Vector<? extends VariableBinding> vbs = pdu.getVariableBindings();
for (VariableBinding vb : vbs) {
// To extract only the value of the OID
// stringBuilder.append(vb.getVariable().toString());
stringBuilder.append(vb.toString() + ",");
}
String messageString = stringBuilder.toString();
// trick: remove the last comma
messageString = messageString.replaceAll(",$", "");
byte[] message = messageString.getBytes();
event = new SimpleEvent();
headers = new HashMap<String, String>();
headers.put("timestamp", String.valueOf(System.currentTimeMillis()));
logger.info("Message: {}", messageString);
event.setBody(message);
event.setHeaders(headers);
if (event == null) {
return;
}
// store the event to underlying channels(s)
getChannelProcessor().processEvent(event);
counterGroup.incrementAndGet("events.success");
} catch (ChannelException ex) {
counterGroup.incrementAndGet("events.dropped");
logger.error("Error writting to channel", ex);
return;
}
logger.info("Trap Type = " + pdu.getType());
logger.info("Variable Bindings = " + pdu.getVariableBindings());
int pduType = pdu.getType();
if ((pduType != PDU.TRAP)
&& (pduType != PDU.V1TRAP)
&& (pduType != PDU.REPORT)
&& (pduType != PDU.RESPONSE)) {
pdu.setErrorIndex(0);
pdu.setErrorStatus(0);
pdu.setType(PDU.RESPONSE);
StatusInformation statusInformation = new StatusInformation();
StateReference ref = cmdRespEvent.getStateReference();
try {
System.out.println(cmdRespEvent.getPDU());
cmdRespEvent
.getMessageDispatcher()
.returnResponsePdu(
cmdRespEvent.getMessageProcessingModel(),
cmdRespEvent.getSecurityModel(),
cmdRespEvent.getSecurityName(),
cmdRespEvent.getSecurityLevel(),
pdu,
cmdRespEvent.getMaxSizeResponsePDU(),
ref,
statusInformation);
} catch (MessageException ex) {
System.err.println("Error while sending response: " + ex.getMessage());
LogFactory.getLogger(SnmpRequest.class).error(ex);
}
}
}
}
private void parseVariableBinding(Element variable, PDU pdu) throws Exception {
String name = variable.attributeValue("name");
String value = variable.attributeValue("value");
String type = variable.attributeValue("type");
String mibName = null;
if (name == null) {
throw new Exception("ERROR : The variablebinding name is required to send the variable.");
}
VariableBinding varBind = null;
boolean found = false;
if (name.startsWith(
"1.")) // if name begin with digit 1 follow by a dot, it is an oid, else we consider it's a
// variable mib
{
varBind = new VariableBinding(new OID(name));
found = true;
} else {
if (name.contains(".")) {
mibName = name.substring(0, name.indexOf('.'));
name = name.substring(name.indexOf('.') + 1);
}
Mib[] mibs = mibLoader.getAllMibs();
for (int i = 0; (i < mibs.length) && !found; i++) {
Collection symbols = mibs[i].getAllSymbols();
for (Object symb : symbols) {
if (symb instanceof MibValueSymbol) {
if (((MibValueSymbol) symb).getName().equalsIgnoreCase(name)) {
if ((mibName == null)
|| ((MibValueSymbol) symb).getMib().getName().equalsIgnoreCase(mibName)) {
varBind =
new VariableBinding(new OID(((MibValueSymbol) symb).getValue().toString()));
if (type == null) {
type = findType((MibValueSymbol) symb);
}
found = true;
break;
}
}
} else if (symb instanceof MibTypeSymbol) {
// System.out.println("mibTypeSymbol " +
// ((MibTypeSymbol)symb).getName() + " for mib name " + mibs[i].getName());
} else if (symb instanceof MibMacroSymbol) {
// System.out.println("mibMacroSymbol " +
// ((MibMacroSymbol)symb).getName() + " for mib name " + mibs[i].getName());
} else {
throw new Exception(
"ERROR : Unknown class for variablebinding \"" + symb.getClass() + "\"");
}
}
}
}
if (!found) {
throw new Exception(
"ERROR : Unknown varbinding name \"" + name + "\" not found in the MIB files.");
}
if (type == null) // /if type not set, search in mib
{
Mib[] mibs = mibLoader.getAllMibs();
for (int i = 0; (i < mibs.length); i++) {
MibValueSymbol symbol = mibs[i].getSymbolByValue(varBind.getOid().toString());
if (symbol != null) {
// set type in function of information in variable
type = findType(symbol);
break;
}
}
}
if ((value != null) && (value.length() > 0)) {
if (type == null) {
throw new Exception(
"ERROR : The variablebinding type is required : it is not defined nor in XML script nor in MIB files.");
}
if (type.equalsIgnoreCase("counter64")) {
varBind.setVariable(new Counter64(Long.parseLong(value)));
} else if (type.equalsIgnoreCase("integer32")) {
varBind.setVariable(new Integer32(Integer.parseInt(value)));
} else if (type.equalsIgnoreCase("octetString") || type.equalsIgnoreCase("octet string")) {
varBind.setVariable(new OctetString(value));
} else if (type.equalsIgnoreCase("opaque")) {
varBind.setVariable(new Opaque(value.getBytes()));
} else if (type.equalsIgnoreCase("oid")) {
varBind.setVariable(new OID(value));
} else if (type.equalsIgnoreCase("genericAddress")) {
GenericAddress add = new GenericAddress();
add.setValue(value);
varBind.setVariable(add);
} else if (type.equalsIgnoreCase("ipAddress")) {
varBind.setVariable(new IpAddress(value));
} else if (type.equalsIgnoreCase("unsignedInteger32")) {
varBind.setVariable(new UnsignedInteger32(Integer.parseInt(value)));
} else if (type.equalsIgnoreCase("counter32")) {
varBind.setVariable(new Counter32(Long.parseLong(value)));
} else if (type.equalsIgnoreCase("gauge32")) {
varBind.setVariable(new Gauge32(Long.parseLong(value)));
} else if (type.equalsIgnoreCase("timeTicks")) {
varBind.setVariable(new TimeTicks(Long.parseLong(value)));
} else {
throw new Exception(
"Error : Unknown variablebinding type \""
+ type
+ "\" : not understood by the application");
}
}
pdu.add(varBind);
}
public Variable getVariable(String name) {
OID oid;
OctetString context = null;
int pos = name.indexOf(':');
if (pos >= 0) {
context = new OctetString(name.substring(0, pos));
oid = new OID(name.substring(pos + 1, name.length()));
} else {
oid = new OID(name);
}
final DefaultMOContextScope scope = new DefaultMOContextScope(context, oid, true, oid, true);
MOQuery query = new DefaultMOQuery(scope, false, this);
ManagedObject mo = server.lookup(query);
if (mo != null) {
final VariableBinding vb = new VariableBinding(oid);
final RequestStatus status = new RequestStatus();
SubRequest req =
new SubRequest() {
private boolean completed;
private MOQuery query;
public boolean hasError() {
return false;
}
public void setErrorStatus(int errorStatus) {
status.setErrorStatus(errorStatus);
}
public int getErrorStatus() {
return status.getErrorStatus();
}
public RequestStatus getStatus() {
return status;
}
public MOScope getScope() {
return scope;
}
public VariableBinding getVariableBinding() {
return vb;
}
public Request getRequest() {
return null;
}
public Object getUndoValue() {
return null;
}
public void setUndoValue(Object undoInformation) {}
public void completed() {
completed = true;
}
public boolean isComplete() {
return completed;
}
public void setTargetMO(ManagedObject managedObject) {}
public ManagedObject getTargetMO() {
return null;
}
public int getIndex() {
return 0;
}
public void setQuery(MOQuery query) {
this.query = query;
}
public MOQuery getQuery() {
return query;
}
public SubRequestIterator repetitions() {
return null;
}
public void updateNextRepetition() {}
public Object getUserObject() {
return null;
}
public void setUserObject(Object userObject) {}
};
mo.get(req);
return vb.getVariable();
}
return null;
}
/** {@inheritDoc} */
public PDU processPdu(PDU pdu) throws SnmpToolkitException {
Log log = LogFactory.getLog(this.getClass());
// 応答用のPDUを生成する
PDU retPdu = new PDU();
retPdu.setType(PDU.RESPONSE);
// 要求のリクエストIDを取得し、応答PDUにセットする
Integer32 requestID = pdu.getRequestID();
retPdu.setRequestID(requestID);
// SNMP4J用の型変換オブジェクト
SnmpVariableHelper varHelper = new Snmp4jVariableHelper();
// AgentServiceからAgentを取得する
Agent agent = this.agentService_.getAgent();
// 要求PDUのVarbindを走査する
int varCount = 0;
List<?> reqVarbinds = pdu.getVariableBindings();
for (Object reqVarbindObj : reqVarbinds) {
varCount++;
// 要求されているOIDを取得する
VariableBinding reqVarbind = (VariableBinding) reqVarbindObj;
OID oid = reqVarbind.getOid();
// GETNEXTでない場合は、指定されたOIDそのものを取得しようとする
// GETNEXTの場合は、指定されたOID配下で最も近いオブジェクトを探す
boolean exact = (pdu.getType() != PDU.GETNEXT);
SnmpVarbind foundVarbind = agent.findObject(oid.toString(), exact);
if (foundVarbind == null) {
// Varbindが見つからなかった場合はnoSuchNameを返す
log.warn("varbind is not found. oid=" + oid.toString());
retPdu.setErrorStatus(SnmpConstants.SNMP_ERROR_NO_SUCH_NAME);
retPdu.setErrorIndex(varCount);
Variable retObject = new Null();
VariableBinding retVarbind = new VariableBinding(oid, retObject);
retPdu.add(retVarbind);
break;
}
// READ-WRITEでなければエラー応答を返す
String accessibility = foundVarbind.getAccessibility();
if (accessibility.equals(SnmpVarbind.ACCESSIBILITY_NOT_ACCESSIBLE) == true) {
log.warn("varbind is not accessible. accessibility=" + accessibility);
retPdu.setErrorStatus(SnmpConstants.SNMP_ERROR_NO_ACCESS);
retPdu.setErrorIndex(varCount);
Variable retObject = new Null();
VariableBinding retVarbind = new VariableBinding(oid, retObject);
retPdu.add(retVarbind);
break;
}
try {
// 正常の応答を返す
retPdu.setErrorStatus(SnmpConstants.SNMP_ERROR_SUCCESS);
retPdu.setErrorIndex(0);
log.debug("varbind is found: " + foundVarbind.toString());
String typeStr = foundVarbind.getType();
Object retValueObj = foundVarbind.getValue();
Variable retObject = (Variable) varHelper.createAsnObject(retValueObj, typeStr);
OID retOID = new OID(foundVarbind.getOid());
VariableBinding retVarbind = new VariableBinding(retOID, retObject);
retPdu.add(retVarbind);
} catch (Exception exception) {
log.warn("exception occured", exception);
// 未知のエラーを示す応答PDUを作成する
retPdu.setErrorStatus(SnmpConstants.SNMP_ERROR_GENERAL_ERROR);
retPdu.setErrorIndex(varCount);
if (foundVarbind != null) {
OID retOID = new OID(foundVarbind.getOid());
Variable retObject = new Null();
VariableBinding retVarbind = new VariableBinding(retOID, retObject);
retPdu.add(retVarbind);
}
}
}
return retPdu;
}
