/**
* Parses a textual representation of an object ID as dotted string (e.g. "1.3.6.1.2.1.1") and
* returns its raw value.
*
* @param text a textual representation of an OID.
* @return the raw OID value.
* @throws ParseException if the OID cannot be parsed successfully.
*/
public int[] parse(String text) throws ParseException {
StringTokenizer st = new StringTokenizer(text, ".", true);
int size = st.countTokens();
int[] value = new int[size];
size = 0;
StringBuffer buf = null;
while (st.hasMoreTokens()) {
String t = st.nextToken();
if ((buf == null) && t.startsWith("'")) {
buf = new StringBuffer();
t = t.substring(1);
}
if ((buf != null) && (t.endsWith("'"))) {
buf.append(t.substring(0, t.length() - 1));
OID o = new OctetString(buf.toString()).toSubIndex(true);
int[] h = value;
value = new int[st.countTokens() + h.length + o.size()];
System.arraycopy(h, 0, value, 0, size);
System.arraycopy(o.getValue(), 0, value, size, o.size());
size += o.size();
buf = null;
} else if (buf != null) {
buf.append(t);
} else if (!".".equals(t)) {
value[size++] = (int) Long.parseLong(t.trim());
}
}
if (size < value.length) {
int[] h = value;
value = new int[size];
System.arraycopy(h, 0, value, 0, size);
}
return value;
}
public void _setIndex(OID oid) {
byte[] _oidBytes = oid.toByteArray();
int[] _oidInts = oid.toIntArray();
int arrayOffset = 11;
int _len;
_index = new OID(_oidInts, 11, (oid.size() - 11)).toString();
setEventIndex(_oidInts[arrayOffset]);
arrayOffset += 1;
}
/**
* 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());
}
}
}
}
/**
* 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 Map collect() {
java.util.Map res = null;
try {
java.util.Map a =
snmpAdapter.get(ipAdEntIfIndexAttr, new OID(ipAdEntIfIndexOID.toString() + "." + nodeIP));
if (a != null && a.get(ipAdEntIfIndexAttr) != null) {
String ifIndex = (String) a.get(ipAdEntIfIndexAttr);
res =
snmpAdapter.get(
ifPhysAddressAttr,
new OID(ifPhysAddressOID.toString() + "." + new Integer(ifIndex)));
}
return res;
} catch (Exception e) {
// TODO Auto-generated catch block
// e.printStackTrace();
if (e instanceof SNMPTimeoutException || e instanceof SNMPCredentialFailException) {
log.error("Get MAC error for " + nodeIP + ":" + e.getMessage());
} else {
log.error("Get MAC error for " + nodeIP, e);
}
}
return null;
}
/**
* 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 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;
}
@Override
public void transform(SmiModule module, SmiObject object) {
OID oid = object.getOID();
if (standardFilterCriteria(module, object)) {
if (oid != null) {
System.out.println("+++++++++++++++++++");
System.out.printf("name: %s%noid: %s%n", oid, oid.toDottedString());
System.out.printf("SyntaxString: %s%nSyntax: %s%n", oid.getSyntaxString(), oid.getSyntax());
System.out.printf("ObjectName: %s%nType: %s%n", object.getObjectName(), object.getType());
System.out.printf(
"ObjectName:SNMP.%s.%s%n",
module.getModuleName(), PluginUtil.toUpperUnderscore(object.getObjectName(), '.'));
String smiSyntax = getSmiSyntax(object.getSmiSyntax());
System.out.printf(
"SmiSyntax: %s%nReference: %s%n",
smiSyntax == null ? object.getSmiSyntax() : smiSyntax, object.getReference());
System.out.printf("Description: %s%n", object.getDescription());
System.out.printf("Oid Syntax: %s%n", oid.getSyntaxString());
System.out.println("-------------------");
}
}
}
public void _setIndex(OID oid) {
byte[] _oidBytes = oid.toByteArray();
int[] _oidInts = oid.toIntArray();
int arrayOffset = 10;
int _len;
_index = new OID(_oidInts, 10, (oid.size() - 10)).toString();
setUdpEndpointLocalAddressType(_oidInts[arrayOffset]);
arrayOffset += 1;
_len = _oidInts[arrayOffset++];
setUdpEndpointLocalAddress(_getObjectIdentifier(_oidInts, arrayOffset, _len));
arrayOffset += _len;
setUdpEndpointLocalPort(_oidInts[arrayOffset]);
arrayOffset += 1;
setUdpEndpointRemoteAddressType(_oidInts[arrayOffset]);
arrayOffset += 1;
_len = _oidInts[arrayOffset++];
setUdpEndpointRemoteAddress(_getObjectIdentifier(_oidInts, arrayOffset, _len));
arrayOffset += _len;
setUdpEndpointRemotePort(_oidInts[arrayOffset]);
arrayOffset += 1;
setUdpEndpointInstance(_oidInts[arrayOffset]);
arrayOffset += 1;
}
private int enumerateIndexed(JrdsElement hostEleme, ProbeDescSummary summary, boolean withOid)
throws IOException {
OID indexOid = new OID(summary.specifics.get("indexOid"));
int count = 0;
log(Level.TRACE, "Will enumerate %s", indexOid);
Set<OID> oidsSet = Collections.singleton(indexOid);
Map<OID, Object> indexes = SnmpRequester.TREE.doSnmpGet(active, oidsSet);
log(Level.TRACE, "Elements : %s", indexes);
for (Map.Entry<OID, Object> e : indexes.entrySet()) {
count++;
Map<String, String> beans = new HashMap<String, String>(2);
OID rowOid = e.getKey();
String indexName = e.getValue().toString();
beans.put("index", indexName);
int[] index = Arrays.copyOfRange(rowOid.getValue(), indexOid.size(), rowOid.size());
// If we wanted to generate a static oid
if (withOid) {
OID suffixOid = new OID(index);
beans.put("oid", suffixOid.toString());
}
// We try to auto-generate the label
String label = summary.specifics.get("labelOid");
String labelValue = null;
if (label != null && !label.isEmpty()) {
OID suffixOid = new OID(index);
for (String lookin : label.split(",")) {
OID labelOID = new OID(lookin.trim() + "." + suffixOid.toString());
labelValue = getLabel(active, labelOID);
if (labelValue != null) break;
}
}
addProbe(hostEleme, summary.name, labelValue, null, null, beans);
}
return count;
}
@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;
}
}
public void rowChanged(MOTableRowEvent event) {
if ((event.getType() == MOTableRowEvent.CREATE)
|| (event.getType() == MOTableRowEvent.UPDATED)) {
// ignore
return;
}
// update counter
Counter32 counter = (Counter32) event.getRow().getValue(Snmp4jDemoMib.idxSnmp4jDemoEntryCol3);
if (counter == null) {
counter = new Counter32(0);
((MOMutableTableRow) event.getRow())
.setValue(Snmp4jDemoMib.idxSnmp4jDemoEntryCol3, counter);
}
counter.increment();
// update timestamp
TimeStamp timestamp =
(TimeStamp) event.getTable().getColumn(Snmp4jDemoMib.idxSnmp4jDemoEntryCol4);
timestamp.update((MOMutableTableRow) event.getRow(), Snmp4jDemoMib.idxSnmp4jDemoEntryCol4);
// fire notification
Integer32 type = new Integer32(Snmp4jDemoMib.Snmp4jDemoTableRowModificationEnum.updated);
switch (event.getType()) {
case MOTableRowEvent.ADD:
type.setValue(Snmp4jDemoMib.Snmp4jDemoTableRowModificationEnum.created);
break;
case MOTableRowEvent.DELETE:
type.setValue(Snmp4jDemoMib.Snmp4jDemoTableRowModificationEnum.deleted);
break;
}
VariableBinding[] payload = new VariableBinding[2];
OID table = event.getTable().getOID();
OID updateCount = new OID(table);
updateCount.append(Snmp4jDemoMib.colSnmp4jDemoEntryCol3);
updateCount.append(event.getRow().getIndex());
OID modifyType = new OID(table);
modifyType.append(Snmp4jDemoMib.colSnmp4jDemoTableRowModification);
modifyType.append(event.getRow().getIndex());
payload[0] = new VariableBinding(updateCount, counter);
payload[1] = new VariableBinding(modifyType, type);
// modules.getSnmp4jDemoMib().snmp4jDemoEvent(
// agent.getNotificationOriginator(), new OctetString(), payload);
}
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();
}
}
/**
* Sets the "enterprise" OID of the SNMPv1 trap. The enterprise OID could be any OID although the
* name could lead to the assumption that the enterprise OID has to be an OID under the
* iso(1).org(3).dod(6).internet(1).private(4).enterprises(1) node, but that's not true.
*
* @param enterprise an OID instance.
* @throws UnsupportedOperationException if the type of this PDU is not {@link PDU#V1TRAP}.
*/
public void setEnterprise(OID enterprise) {
checkV1TRAP();
checkNull(enterprise);
this.enterprise = (OID) enterprise.clone();
}
/** {@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;
}
public OID getID() {
return (OID) ID.clone();
}
private Request createSnmpRequest(URI url) throws UnknownHostException {
String host = url.getHost();
int port = url.getPort();
if (port == -1) {
port = SnmpConstants.DEFAULT_COMMAND_RESPONDER_PORT;
}
String userInfo = url.getUserInfo();
if (userInfo == null) {
userInfo = defaultUserInfo;
}
String path = url.getPath();
String[] segments = path.split("/");
String contextInfo;
String contextName = "";
OctetString contextEngineID = null;
String oidPart = null;
if (segments.length > 1) {
contextInfo = segments[0];
oidPart = segments[1];
String[] contextInfos = contextInfo.split(";");
if (contextInfos.length > 1) {
contextEngineID = OctetString.fromHexStringPairs(contextInfos[1]);
}
contextName = contextInfos[0];
} else if (segments.length == 1) {
oidPart = segments[0];
}
Target t = createTarget(new OctetString(userInfo));
if (host != null) {
if (t instanceof CertifiedTarget) {
t.setAddress(new TlsAddress(InetAddress.getByName(host), port));
} else {
t.setAddress(new UdpAddress(InetAddress.getByName(host), port));
}
} else {
t = defaultTarget;
}
PDU pdu = pduFactory.createPDU(t);
if (pdu instanceof ScopedPDU) {
if (contextEngineID != null) {
((ScopedPDU) pdu).setContextEngineID(contextEngineID);
}
if (contextName != null) {
((ScopedPDU) pdu).setContextName(new OctetString(contextName));
}
}
SnmpUriType type = SnmpUriType.GET;
if (oidPart != null && oidPart.endsWith(".*")) {
type = SnmpUriType.SUBTREE;
oidPart = oidPart.substring(0, oidPart.length() - 2);
} else if (oidPart != null && oidPart.endsWith("+")) {
type = SnmpUriType.NEXT;
oidPart = oidPart.substring(0, oidPart.length() - 1);
}
List<OID> oids;
if (oidPart != null && oidPart.contains("(")) {
String[] oidStrings = oidPart.split("[\\(,\\),\\,]");
oids = new ArrayList<>(oidStrings.length);
for (String oidString : oidStrings) {
if (!oidString.isEmpty()) {
OID o = new OID(oidString);
if (o.isValid()) {
oids.add(o);
}
}
}
} else if (oidPart != null) {
oids = Collections.singletonList(new OID(oidPart));
} else {
oids = Collections.emptyList();
}
return new Request(t, pdu, oids.toArray(new OID[oids.size()]), type);
}
