Snmp

farahoo Messages postés 45 Date d'inscription vendredi 12 février 2010 Statut Membre Dernière intervention 9 mai 2010 - 17 mars 2010 à 10:58
cs_DARKSIDIOUS Messages postés 15814 Date d'inscription jeudi 8 août 2002 Statut Membre Dernière intervention 4 mars 2013 - 17 mars 2010 à 13:42
jessaye dexecuter ce code mais sa ne fonctionne pas aidez moi svp a trouver les causes


/* * SNMP Package
*
* Copyright (C) 2004, Jonathan Sevy <jsevy@mcs.drexel.edu>
*
* This is free software. Redistribution and use in source and binary forms, with
* or without modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/


package org.snmp4ant.snmp;

import java.io.*;
import java.net.*;


public class prog1 {

/**
* The class SNMPv1CommunicationInterface defines methods for communicating with SNMP entities.
* The approach is that from version 1 of SNMP, using no encryption of data. Communication occurs
* via UDP, using port 161, the standard SNMP port.
*/

public class SNMPv1CommunicationInterface
{
public static final int SNMPPORT = 161;

// largest size for datagram packet payload; based on
// RFC 1157, need to handle messages of at least 484 bytes
private int receiveBufferSize = 512;

private int version;
private InetAddress hostAddress;
private String community;
DatagramSocket dSocket;

public int requestID = 1;




/**
* Construct a new communication object to communicate with the specified host using the
* given community name. The version setting should be either 0 (version 1) or 1 (version 2,
* a la RFC 1157).
*/

public SNMPv1CommunicationInterface(int version, InetAddress hostAddress, String community)
throws SocketException
{
this.version = version;
this.hostAddress = hostAddress;
this.community = community;

dSocket = new DatagramSocket();
dSocket.setSoTimeout(15000); //15 seconds
}




/**
* Permits setting timeout value for underlying datagram socket (in milliseconds).
*/

public void setSocketTimeout(int socketTimeout)
throws SocketException
{
dSocket.setSoTimeout(socketTimeout);
}



/**
* Close the "connection" with the device.
*/

public void closeConnection()
throws SocketException
{
dSocket.close();
}






/**
* Retrieve all MIB variable values subsequent to the starting object identifier
* given in startID (in dotted-integer notation). Return as SNMPVarBindList object.
* Uses SNMPGetNextRequests to retrieve variable values in sequence.
* @throws IOException Thrown when timeout experienced while waiting for response to request.
* @throws SNMPBadValueException
*/

public SNMPVarBindList retrieveAllMIBInfo(String startID)
throws IOException, SNMPBadValueException
{
// send GetNextRequests until receive
// an error message or a repeat of the object identifier we sent out
SNMPVarBindList retrievedVars = new SNMPVarBindList();


int errorStatus = 0;
int errorIndex = 0;

SNMPObjectIdentifier requestedObjectIdentifier = new SNMPObjectIdentifier(startID);
SNMPVariablePair nextPair = new SNMPVariablePair(requestedObjectIdentifier, new SNMPNull());
SNMPSequence varList = new SNMPSequence();
varList.addSNMPObject(nextPair);
SNMPPDU pdu = new SNMPPDU(SNMPBERCodec.SNMPGETNEXTREQUEST, requestID, errorStatus, errorIndex, varList);
SNMPMessage message = new SNMPMessage(version, community, pdu);
byte[] messageEncoding = message.getBEREncoding();
DatagramPacket outPacket = new DatagramPacket(messageEncoding, messageEncoding.length, hostAddress, SNMPPORT);


dSocket.send(outPacket);



while (errorStatus == 0)
{

DatagramPacket inPacket = new DatagramPacket(new byte[receiveBufferSize], receiveBufferSize);

dSocket.receive(inPacket);

byte[] encodedMessage = inPacket.getData();


SNMPMessage receivedMessage = new SNMPMessage(SNMPBERCodec.extractNextTLV(encodedMessage,0).value);
//errorStatus = ((BigInteger)((SNMPInteger)((receivedMessage.getPDU()).getSNMPObjectAt(1))).getValue()).intValue();


varList = (receivedMessage.getPDU()).getVarBindList();
SNMPSequence newPair = (SNMPSequence)(varList.getSNMPObjectAt(0));

SNMPObjectIdentifier newObjectIdentifier = (SNMPObjectIdentifier)(newPair.getSNMPObjectAt(0));
@SuppressWarnings("unused")
SNMPObject newValue = newPair.getSNMPObjectAt(1);

retrievedVars.addSNMPObject(newPair);


if (requestedObjectIdentifier.equals(newObjectIdentifier))
break;

requestedObjectIdentifier = newObjectIdentifier;

requestID++;
nextPair = new SNMPVariablePair(requestedObjectIdentifier, new SNMPNull());
varList = new SNMPSequence();
varList.addSNMPObject(nextPair);
pdu = new SNMPPDU(SNMPBERCodec.SNMPGETNEXTREQUEST, requestID, errorStatus, errorIndex, varList);
message = new SNMPMessage(version, community, pdu);
messageEncoding = message.getBEREncoding();
outPacket = new DatagramPacket(messageEncoding, messageEncoding.length, hostAddress, SNMPPORT);

dSocket.send(outPacket);

}


return retrievedVars;

}



@SuppressWarnings("unused")
private String hexByte(byte b)
{
int pos = b;
if (pos < 0)
pos += 256;
String returnString = new String();
returnString += Integer.toHexString(pos/16);
returnString += Integer.toHexString(pos%16);
return returnString;
}





/**
* Retrieve the MIB variable value corresponding to the object identifier
* given in itemID (in dotted-integer notation). Return as SNMPVarBindList object; if no
* such variable (either due to device not supporting it, or community name having incorrect
* access privilege), SNMPGetException thrown
* @throws IOException Thrown when timeout experienced while waiting for response to request.
* @throws SNMPBadValueException
* @throws SNMPGetException Thrown if supplied OID has value that can't be retrieved
*/

public SNMPVarBindList getMIBEntry(String itemID)
throws IOException, SNMPBadValueException, SNMPGetException
{
// send GetRequest to specified host to retrieve specified object identifier

SNMPVarBindList retrievedVars = new SNMPVarBindList();


int errorStatus = 0;
int errorIndex = 0;


SNMPObjectIdentifier requestedObjectIdentifier = new SNMPObjectIdentifier(itemID);
SNMPVariablePair nextPair = new SNMPVariablePair(requestedObjectIdentifier, new SNMPNull());
SNMPSequence varList = new SNMPSequence();
varList.addSNMPObject(nextPair);
SNMPPDU pdu = new SNMPPDU(SNMPBERCodec.SNMPGETREQUEST, requestID, errorStatus, errorIndex, varList);

SNMPMessage message = new SNMPMessage(version, community, pdu);

byte[] messageEncoding = message.getBEREncoding();


/*
System.out.println("Request Message bytes:");

for (int i = 0; i < messageEncoding.length; ++i)
System.out.print(hexByte(messageEncoding[i]) + " ");
*/

DatagramPacket outPacket = new DatagramPacket(messageEncoding, messageEncoding.length, hostAddress, SNMPPORT);

dSocket.send(outPacket);


while (true) // wait until receive reply for requestID & OID (or error)
{

DatagramPacket inPacket = new DatagramPacket(new byte[receiveBufferSize], receiveBufferSize);

dSocket.receive(inPacket);

byte[] encodedMessage = inPacket.getData();

/*
System.out.println("Message bytes:");

for (int i = 0; i < encodedMessage.length; ++i)
{
System.out.print(hexByte(encodedMessage[i]) + " ");
}
*/


SNMPMessage receivedMessage = new SNMPMessage(SNMPBERCodec.extractNextTLV(encodedMessage,0).value);
SNMPPDU receivedPDU = receivedMessage.getPDU();

// check request identifier; if incorrect, just ignore packet and continue waiting
if (receivedPDU.getRequestID() == requestID)
{

// check error status; if retrieval problem, throw SNMPGetException
if (receivedPDU.getErrorStatus() != 0)
throw new SNMPGetException("OID " + itemID + " not available for retrieval", receivedPDU.getErrorIndex(), receivedPDU.getErrorStatus());


varList = receivedPDU.getVarBindList();
SNMPSequence newPair = (SNMPSequence)(varList.getSNMPObjectAt(0));

SNMPObjectIdentifier newObjectIdentifier = (SNMPObjectIdentifier)(newPair.getSNMPObjectAt(0));
@SuppressWarnings("unused")
SNMPObject newValue = newPair.getSNMPObjectAt(1);

// check the object identifier to make sure the correct variable has been received;
// if not, just continue waiting for receive
if (newObjectIdentifier.toString().equals(itemID))
{
// got the right one; add it to retrieved var list and break!
retrievedVars.addSNMPObject(newPair);
break;
}

}

}


requestID++;


return retrievedVars;

}




/**
* Retrieve the MIB variable values corresponding to the object identifiers
* given in the array itemID (in dotted-integer notation). Return as SNMPVarBindList object;
* if no such variable (either due to device not supporting it, or community name having incorrect
* access privilege), SNMPGetException thrown
* @throws IOException Thrown when timeout experienced while waiting for response to request.
* @throws SNMPBadValueException
* @throws SNMPGetException Thrown if one of supplied OIDs has value that can't be retrieved
*/

public SNMPVarBindList getMIBEntry(String[] itemID)
throws IOException, SNMPBadValueException, SNMPGetException
{
// send GetRequest to specified host to retrieve values of specified object identifiers

SNMPVarBindList retrievedVars = new SNMPVarBindList();
SNMPSequence varList = new SNMPSequence();

int errorStatus = 0;
int errorIndex = 0;

for (int i = 0; i < itemID.length; i++)
{
SNMPObjectIdentifier requestedObjectIdentifier = new SNMPObjectIdentifier(itemID[i]);
SNMPVariablePair nextPair = new SNMPVariablePair(requestedObjectIdentifier, new SNMPNull());
varList.addSNMPObject(nextPair);
}


SNMPPDU pdu = new SNMPPDU(SNMPBERCodec.SNMPGETREQUEST, requestID, errorStatus, errorIndex, varList);

SNMPMessage message = new SNMPMessage(version, community, pdu);

byte[] messageEncoding = message.getBEREncoding();


/*
System.out.println("Request Message bytes:");

for (int i = 0; i < messageEncoding.length; ++i)
System.out.print(hexByte(messageEncoding[i]) + " ");
*/

DatagramPacket outPacket = new DatagramPacket(messageEncoding, messageEncoding.length, hostAddress, SNMPPORT);


dSocket.send(outPacket);


while (true) // wait until receive reply for requestID & OID (or error)
{

DatagramPacket inPacket = new DatagramPacket(new byte[receiveBufferSize], receiveBufferSize);

dSocket.receive(inPacket);

byte[] encodedMessage = inPacket.getData();

/*
System.out.println("Message bytes:");

for (int i = 0; i < encodedMessage.length; ++i)
{
System.out.print(hexByte(encodedMessage[i]) + " ");
}
*/


SNMPMessage receivedMessage = new SNMPMessage(SNMPBERCodec.extractNextTLV(encodedMessage,0).value);
SNMPPDU receivedPDU = receivedMessage.getPDU();

// check request identifier; if incorrect, just ignore packet and continue waiting
if (receivedPDU.getRequestID() == requestID)
{

// check error status; if retrieval problem, throw SNMPGetException
if (receivedPDU.getErrorStatus() != 0)
{
// determine error index
errorIndex = receivedPDU.getErrorIndex();
throw new SNMPGetException("OID " + itemID[errorIndex - 1] + " not available for retrieval", errorIndex, receivedPDU.getErrorStatus());
}

// copy info from retrieved sequence to var bind list
varList = receivedPDU.getVarBindList();

for (int i = 0; i < varList.size(); i++)
{
SNMPSequence newPair = (SNMPSequence)(varList.getSNMPObjectAt(i));

SNMPObjectIdentifier newObjectIdentifier = (SNMPObjectIdentifier)(newPair.getSNMPObjectAt(0));
@SuppressWarnings("unused")
SNMPObject newValue = newPair.getSNMPObjectAt(1);

if (newObjectIdentifier.toString().equals(itemID[i]))
{
retrievedVars.addSNMPObject(newPair);
}
else
{
// wrong OID; throw GetException
throw new SNMPGetException("OID " + itemID[i] + " expected at index " + i + ", OID " + newObjectIdentifier + " received", i+1, SNMPRequestException.FAILED);
}
}

break;

}

}


requestID++;


return retrievedVars;

}





/**
* Retrieve the MIB variable value corresponding to the object identifier following that
* given in itemID (in dotted-integer notation). Return as SNMPVarBindList object; if no
* such variable (either due to device not supporting it, or community name having incorrect
* access privilege), variable value will be SNMPNull object
* @throws IOException Thrown when timeout experienced while waiting for response to request.
* @throws SNMPBadValueException
* @throws SNMPGetException Thrown if one the OID following the supplied OID has value that can't be retrieved
*/

public SNMPVarBindList getNextMIBEntry(String itemID)
throws IOException, SNMPBadValueException, SNMPGetException
{
// send GetRequest to specified host to retrieve specified object identifier

SNMPVarBindList retrievedVars = new SNMPVarBindList();


int errorStatus = 0;
int errorIndex = 0;


SNMPObjectIdentifier requestedObjectIdentifier = new SNMPObjectIdentifier(itemID);
SNMPVariablePair nextPair = new SNMPVariablePair(requestedObjectIdentifier, new SNMPNull());
SNMPSequence varList = new SNMPSequence();
varList.addSNMPObject(nextPair);
SNMPPDU pdu = new SNMPPDU(SNMPBERCodec.SNMPGETNEXTREQUEST, requestID, errorStatus, errorIndex, varList);

SNMPMessage message = new SNMPMessage(version, community, pdu);

byte[] messageEncoding = message.getBEREncoding();


/*
System.out.println("Request Message bytes:");

for (int i = 0; i < messageEncoding.length; ++i)
System.out.print(hexByte(messageEncoding[i]) + " ");
*/

DatagramPacket outPacket = new DatagramPacket(messageEncoding, messageEncoding.length, hostAddress, SNMPPORT);


dSocket.send(outPacket);


while (true) // wait until receive reply for requestID & OID (or error)
{

DatagramPacket inPacket = new DatagramPacket(new byte[receiveBufferSize], receiveBufferSize);

dSocket.receive(inPacket);

byte[] encodedMessage = inPacket.getData();

/*
System.out.println("Message bytes:");

for (int i = 0; i < encodedMessage.length; ++i)
{
System.out.print(hexByte(encodedMessage[i]) + " ");
}
*/


SNMPMessage receivedMessage = new SNMPMessage(SNMPBERCodec.extractNextTLV(encodedMessage,0).value);
SNMPPDU receivedPDU = receivedMessage.getPDU();

// check request identifier; if incorrect, just ignore packet and continue waiting
if (receivedPDU.getRequestID() == requestID)
{

// check error status; if retrieval problem, throw SNMPGetException
if (receivedPDU.getErrorStatus() != 0)
throw new SNMPGetException("OID " + itemID + " not available for retrieval", receivedPDU.getErrorIndex(), receivedPDU.getErrorStatus());


varList = receivedPDU.getVarBindList();
SNMPSequence newPair = (SNMPSequence)(varList.getSNMPObjectAt(0));

@SuppressWarnings("unused")
SNMPObjectIdentifier newObjectIdentifier = (SNMPObjectIdentifier)(newPair.getSNMPObjectAt(0));
@SuppressWarnings("unused")
SNMPObject newValue = newPair.getSNMPObjectAt(1);

retrievedVars.addSNMPObject(newPair);

break;

}

}


requestID++;


return retrievedVars;

}





/**
* Retrieve the MIB variable value corresponding to the object identifiers following those
* given in the itemID array (in dotted-integer notation). Return as SNMPVarBindList object;
* if no such variable (either due to device not supporting it, or community name having
* incorrect access privilege), SNMPGetException thrown
* @throws IOException Thrown when timeout experienced while waiting for response to request.
* @throws SNMPBadValueException
* @throws SNMPGetException Thrown if OID following one of supplied OIDs has value that can't be retrieved
*/

public SNMPVarBindList getNextMIBEntry(String[] itemID)
throws IOException, SNMPBadValueException, SNMPGetException
{
// send GetRequest to specified host to retrieve values of specified object identifiers

SNMPVarBindList retrievedVars = new SNMPVarBindList();
SNMPSequence varList = new SNMPSequence();

int errorStatus = 0;
int errorIndex = 0;

for (int i = 0; i < itemID.length; i++)
{
SNMPObjectIdentifier requestedObjectIdentifier = new SNMPObjectIdentifier(itemID[i]);
SNMPVariablePair nextPair = new SNMPVariablePair(requestedObjectIdentifier, new SNMPNull());
varList.addSNMPObject(nextPair);
}

SNMPPDU pdu = new SNMPPDU(SNMPBERCodec.SNMPGETNEXTREQUEST, requestID, errorStatus, errorIndex, varList);
SNMPMessage message = new SNMPMessage(version, community, pdu);

byte[] messageEncoding = message.getBEREncoding();


/*
System.out.println("Request Message bytes:");

for (int i = 0; i < messageEncoding.length; ++i)
System.out.print(hexByte(messageEncoding[i]) + " ");
*/

DatagramPacket outPacket = new DatagramPacket(messageEncoding, messageEncoding.length, hostAddress, SNMPPORT);


dSocket.send(outPacket);


while (true) // wait until receive reply for requestID & OID (or error)
{

DatagramPacket inPacket = new DatagramPacket(new byte[receiveBufferSize], receiveBufferSize);

dSocket.receive(inPacket);

byte[] encodedMessage = inPacket.getData();

/*
System.out.println("Message bytes:");

for (int i = 0; i < encodedMessage.length; ++i)
{
System.out.print(hexByte(encodedMessage[i]) + " ");
}
*/


SNMPMessage receivedMessage = new SNMPMessage(SNMPBERCodec.extractNextTLV(encodedMessage,0).value);
SNMPPDU receivedPDU = receivedMessage.getPDU();

// check request identifier; if incorrect, just ignore packet and continue waiting
if (receivedPDU.getRequestID() == requestID)
{

// check error status; if retrieval problem, throw SNMPGetException
if (receivedPDU.getErrorStatus() != 0)
{
// determine error index
errorIndex = receivedPDU.getErrorIndex();
throw new SNMPGetException("OID following " + itemID[errorIndex - 1] + " not available for retrieval", errorIndex, receivedPDU.getErrorStatus());
}

// copy info from retrieved sequence to var bind list
varList = receivedPDU.getVarBindList();

for (int i = 0; i < varList.size(); i++)
{
SNMPSequence newPair = (SNMPSequence)(varList.getSNMPObjectAt(i));

@SuppressWarnings("unused")
SNMPObjectIdentifier newObjectIdentifier = (SNMPObjectIdentifier)(newPair.getSNMPObjectAt(0));
@SuppressWarnings("unused")
SNMPObject newValue = newPair.getSNMPObjectAt(1);

retrievedVars.addSNMPObject(newPair);

}

break;

}

}


requestID++;


return retrievedVars;

}







/**
* Set the MIB variable value of the object identifier
* given in startID (in dotted-integer notation). Return SNMPVarBindList object returned
* by device in its response; can be used to check that setting was successful.
* Uses SNMPGetNextRequests to retrieve variable values in sequence.
* @throws IOException Thrown when timeout experienced while waiting for response to request.
* @throws SNMPBadValueException
*/

public SNMPVarBindList setMIBEntry(String itemID, SNMPObject newValue)
throws IOException, SNMPBadValueException, SNMPSetException
{
// send SetRequest to specified host to set value of specified object identifier

SNMPVarBindList retrievedVars = new SNMPVarBindList();

int errorStatus = 0;
int errorIndex = 0;

SNMPObjectIdentifier requestedObjectIdentifier = new SNMPObjectIdentifier(itemID);
SNMPVariablePair nextPair = new SNMPVariablePair(requestedObjectIdentifier, newValue);



SNMPSequence varList = new SNMPSequence();
varList.addSNMPObject(nextPair);
SNMPPDU pdu = new SNMPPDU(SNMPBERCodec.SNMPSETREQUEST, requestID, errorStatus, errorIndex, varList);


SNMPMessage message = new SNMPMessage(version, community, pdu);
byte[] messageEncoding = message.getBEREncoding();

/*
System.out.println("Message bytes:");

for (int i = 0; i < messageEncoding.length; ++i)
{
System.out.print(getHex(messageEncoding[i]) + " ");
}
*/


DatagramPacket outPacket = new DatagramPacket(messageEncoding, messageEncoding.length, hostAddress, SNMPPORT);


dSocket.send(outPacket);


while (true) // wait until receive reply for correct OID (or error)
{

DatagramPacket inPacket = new DatagramPacket(new byte[receiveBufferSize], receiveBufferSize);

dSocket.receive(inPacket);


byte[] encodedMessage = inPacket.getData();

/*
System.out.println("Message bytes:");

for (int i = 0; i < encodedMessage.length; ++i)
{
System.out.print((encodedMessage[i]) + " ");
}
*/



SNMPMessage receivedMessage = new SNMPMessage(SNMPBERCodec.extractNextTLV(encodedMessage,0).value);

SNMPPDU receivedPDU = receivedMessage.getPDU();


// check request identifier; if incorrect, just ignore packet and continue waiting
if (receivedPDU.getRequestID() == requestID)
{

// check error status; if retrieval problem, throw SNMPGetException
if (receivedPDU.getErrorStatus() != 0)
{
switch (receivedPDU.getErrorStatus())
{
case 1:
throw new SNMPSetException("Value supplied for OID " + itemID + " too big.", receivedPDU.getErrorIndex(), receivedPDU.getErrorStatus());

case 2:
throw new SNMPSetException("OID " + itemID + " not available for setting.", receivedPDU.getErrorIndex(), receivedPDU.getErrorStatus());

case 3:
throw new SNMPSetException("Bad value supplied for OID " + itemID + ".", receivedPDU.getErrorIndex(), receivedPDU.getErrorStatus());

case 4:
throw new SNMPSetException("OID " + itemID + " read-only.", receivedPDU.getErrorIndex(), receivedPDU.getErrorStatus());

default:
throw new SNMPSetException("Error setting OID " + itemID + ".", receivedPDU.getErrorIndex(), receivedPDU.getErrorStatus());

}
}


varList = receivedPDU.getVarBindList();
SNMPSequence newPair = (SNMPSequence)(varList.getSNMPObjectAt(0));

// check the object identifier to make sure the correct variable has been received;
// if not, just continue waiting for receive
if (((SNMPObjectIdentifier)newPair.getSNMPObjectAt(0)).toString().equals(itemID))
{
// got the right one; add it to retrieved var list and break!
retrievedVars.addSNMPObject(newPair);
break;
}

}

}


requestID++;


return retrievedVars;

}




/**
* Set the MIB variable values of the supplied object identifiers given in the
* itemID array (in dotted-integer notation). Return SNMPVarBindList returned
* by device in its response; can be used to check that setting was successful.
* Uses SNMPGetNextRequests to retrieve variable values in sequence.
* @throws IOException Thrown when timeout experienced while waiting for response to request.
* @throws SNMPBadValueException
*/

public SNMPVarBindList setMIBEntry(String[] itemID, SNMPObject[] newValue)
throws IOException, SNMPBadValueException, SNMPSetException
{
// check that OID and value arrays have same size
if (itemID.length != newValue.length)
{
throw new SNMPSetException("OID and value arrays must have same size", 0, SNMPRequestException.FAILED);
}


// send SetRequest to specified host to set values of specified object identifiers

SNMPVarBindList retrievedVars = new SNMPVarBindList();
SNMPSequence varList = new SNMPSequence();

int errorStatus = 0;
int errorIndex = 0;


for (int i = 0; i < itemID.length; i++)
{
SNMPObjectIdentifier requestedObjectIdentifier = new SNMPObjectIdentifier(itemID[i]);
SNMPVariablePair nextPair = new SNMPVariablePair(requestedObjectIdentifier, newValue[i]);
varList.addSNMPObject(nextPair);
}

SNMPPDU pdu = new SNMPPDU(SNMPBERCodec.SNMPSETREQUEST, requestID, errorStatus, errorIndex, varList);
SNMPMessage message = new SNMPMessage(version, community, pdu);

byte[] messageEncoding = message.getBEREncoding();

/*
System.out.println("Message bytes:");

for (int i = 0; i < messageEncoding.length; ++i)
{
System.out.print(getHex(messageEncoding[i]) + " ");
}
*/


DatagramPacket outPacket = new DatagramPacket(messageEncoding, messageEncoding.length, hostAddress, SNMPPORT);

dSocket.send(outPacket);


while (true) // wait until receive reply for correct OID (or error)
{

DatagramPacket inPacket = new DatagramPacket(new byte[receiveBufferSize], receiveBufferSize);

dSocket.receive(inPacket);

byte[] encodedMessage = inPacket.getData();

/*
System.out.println("Message bytes:");

for (int i = 0; i < encodedMessage.length; ++i)
{
System.out.print((encodedMessage[i]) + " ");
}
*/



SNMPMessage receivedMessage = new SNMPMessage(SNMPBERCodec.extractNextTLV(encodedMessage,0).value);

SNMPPDU receivedPDU = receivedMessage.getPDU();


// check request identifier; if incorrect, just ignore packet and continue waiting
if (receivedPDU.getRequestID() == requestID)
{

// check error status; if retrieval problem, throw SNMPGetException
if (receivedPDU.getErrorStatus() != 0)
{
errorIndex = receivedPDU.getErrorIndex();

switch (receivedPDU.getErrorStatus())
{
case 1:
throw new SNMPSetException("Value supplied for OID " + itemID[errorIndex - 1] + " too big.", receivedPDU.getErrorIndex(), receivedPDU.getErrorStatus());

case 2:
throw new SNMPSetException("OID " + itemID[errorIndex - 1] + " not available for setting.", receivedPDU.getErrorIndex(), receivedPDU.getErrorStatus());

case 3:
throw new SNMPSetException("Bad value supplied for OID " + itemID[errorIndex - 1] + ".", receivedPDU.getErrorIndex(), receivedPDU.getErrorStatus());

case 4:
throw new SNMPSetException("OID " + itemID[errorIndex - 1] + " read-only.", receivedPDU.getErrorIndex(), receivedPDU.getErrorStatus());

default:
throw new SNMPSetException("Error setting OID " + itemID[errorIndex - 1] + ".", receivedPDU.getErrorIndex(), receivedPDU.getErrorStatus());

}
}


// copy info from retrieved sequence to var bind list
varList = receivedPDU.getVarBindList();

for (int i = 0; i < varList.size(); i++)
{
SNMPSequence newPair = (SNMPSequence)(varList.getSNMPObjectAt(i));

SNMPObjectIdentifier newObjectIdentifier = (SNMPObjectIdentifier)(newPair.getSNMPObjectAt(0));
//SNMPObject receivedValue = newPair.getSNMPObjectAt(1);

if (newObjectIdentifier.toString().equals(itemID[i]))
{
retrievedVars.addSNMPObject(newPair);
}
else
{
// wrong OID; throw GetException
throw new SNMPSetException("OID " + itemID[i] + " expected at index " + i + ", OID " + newObjectIdentifier + " received", i+1, SNMPRequestException.FAILED);
}
}

break;

}

}


requestID++;


return retrievedVars;

}




/**
* Retrieve all MIB variable values whose OIDs start with the supplied baseID. Since the entries of
* an SNMP table have the form .<tableEntry>., this will retrieve all of the table
* data as an SNMPVarBindList object consisting of sequence of SNMPVariablePairs.
* Uses SNMPGetNextRequests to retrieve variable values in sequence.
* @throws IOException Thrown when timeout experienced while waiting for response to request.
* @throws SNMPBadValueException
*/

public SNMPVarBindList retrieveMIBTable(String baseID)
throws IOException, SNMPBadValueException, SNMPGetException
{
// send GetNextRequests until receive
// an error message or a repeat of the object identifier we sent out
SNMPVarBindList retrievedVars = new SNMPVarBindList();


int errorStatus = 0;
int errorIndex = 0;

String currentID = baseID;
SNMPObjectIdentifier requestedObjectIdentifier = new SNMPObjectIdentifier(currentID);


while (errorStatus == 0)
{

SNMPVariablePair nextPair = new SNMPVariablePair(requestedObjectIdentifier, new SNMPNull());
SNMPSequence varList = new SNMPSequence();
varList.addSNMPObject(nextPair);
SNMPPDU pdu = new SNMPPDU(SNMPBERCodec.SNMPGETNEXTREQUEST, requestID, errorStatus, errorIndex, varList);
SNMPMessage message = new SNMPMessage(version, community, pdu);
byte[] messageEncoding = message.getBEREncoding();
DatagramPacket outPacket = new DatagramPacket(messageEncoding, messageEncoding.length, hostAddress, SNMPPORT);

/*
System.out.println("Request bytes:");

for (int i = 0; i < messageEncoding.length; ++i)
{
System.out.print(getHex(messageEncoding[i]) + " ");
}
*/

dSocket.send(outPacket);


DatagramPacket inPacket = new DatagramPacket(new byte[receiveBufferSize], receiveBufferSize);

dSocket.receive(inPacket);

byte[] encodedMessage = inPacket.getData();


SNMPMessage receivedMessage = new SNMPMessage(SNMPBERCodec.extractNextTLV(encodedMessage,0).value);
SNMPPDU receivedPDU = receivedMessage.getPDU();

// check request identifier; if incorrect, just ignore packet and continue waiting
if (receivedPDU.getRequestID() == requestID)
{

// check error status; if retrieval problem, just break - could be there are no additional OIDs
if (receivedPDU.getErrorStatus() != 0)
{
break;
//throw new SNMPGetException("OID following " + requestedObjectIdentifier + " not available for retrieval");
}

varList = receivedPDU.getVarBindList();
SNMPSequence newPair = (SNMPSequence)(varList.getSNMPObjectAt(0));

SNMPObjectIdentifier newObjectIdentifier = (SNMPObjectIdentifier)(newPair.getSNMPObjectAt(0));
@SuppressWarnings("unused")
SNMPObject newValue = newPair.getSNMPObjectAt(1);

// now see if retrieved ID starts with table base; if not, done with table - break
String newOIDString = (String)newObjectIdentifier.toString();
if (!newOIDString.startsWith(baseID))
break;

retrievedVars.addSNMPObject(newPair);

requestedObjectIdentifier = newObjectIdentifier;

requestID++;

}


}


return retrievedVars;

}




/**
* Retrieve all MIB variable values whose OIDs start with the supplied baseIDs. The normal way for
* this to be used is for the base OID array to consist of the base OIDs of the columns of a table.
* This method will then retrieve all of the entries of the table corresponding to these columns, one
* row at a time (i.e., the entries for each row will be retrieved in a single SNMP request). This
* will retrieve the table data as an SNMPVarBindList object consisting of sequence of SNMPVariablePairs,
* with the entries for each row grouped together. This may provide a more convenient arrangement of
* the table data than the simpler retrieveMIBTable method taking a single OID as argument; in addition,
* it's more efficient, requiring one SNMP request per row rather than one request per entry.
* Uses SNMPGetNextRequests to retrieve variable values for each row in sequence.
* @throws IOException Thrown when timeout experienced while waiting for response to request.
* @throws SNMPBadValueException
* @throws SNMPGetException Thrown if incomplete row retrieved
*/

public SNMPVarBindList retrieveMIBTable(String[] baseID)
throws IOException, SNMPBadValueException, SNMPGetException
{
// send GetNextRequests until receive
// an error message or a repeat of the object identifier we sent out
SNMPVarBindList retrievedVars = new SNMPVarBindList();

int errorStatus = 0;
int errorIndex = 0;

SNMPObjectIdentifier[] requestedObjectIdentifier = new SNMPObjectIdentifier[baseID.length];
for (int i = 0; i < baseID.length; i++)
{
requestedObjectIdentifier[i] = new SNMPObjectIdentifier(baseID[i]);
}


retrievalLoop:

while (errorStatus == 0)
{

SNMPSequence varList = new SNMPSequence();

for (int i = 0; i < requestedObjectIdentifier.length; i++)
{
SNMPVariablePair nextPair = new SNMPVariablePair(requestedObjectIdentifier[i], new SNMPNull());
varList.addSNMPObject(nextPair);
}

SNMPPDU pdu = new SNMPPDU(SNMPBERCodec.SNMPGETNEXTREQUEST, requestID, errorStatus, errorIndex, varList);
SNMPMessage message = new SNMPMessage(version, community, pdu);

byte[] messageEncoding = message.getBEREncoding();

DatagramPacket outPacket = new DatagramPacket(messageEncoding, messageEncoding.length, hostAddress, SNMPPORT);

/*
System.out.println("Request bytes:");

for (int i = 0; i < messageEncoding.length; ++i)
{
System.out.print(getHex(messageEncoding[i]) + " ");
}
*/

dSocket.send(outPacket);


DatagramPacket inPacket = new DatagramPacket(new byte[receiveBufferSize], receiveBufferSize);

dSocket.receive(inPacket);

byte[] encodedMessage = inPacket.getData();


SNMPMessage receivedMessage = new SNMPMessage(SNMPBERCodec.extractNextTLV(encodedMessage,0).value);
SNMPPDU receivedPDU = receivedMessage.getPDU();

// check request identifier; if incorrect, just ignore packet and continue waiting
if (receivedPDU.getRequestID() == requestID)
{

// check error status; if retrieval problem for error index 1, just break - assume there are no additional OIDs
// to retrieve. If index is other than 1, throw exception
if (receivedPDU.getErrorStatus() != 0)
{
int retrievedErrorIndex = receivedPDU.getErrorIndex();

if (retrievedErrorIndex == 1)
{
break retrievalLoop;
}
}

// copy info from retrieved sequence to var bind list
varList = receivedPDU.getVarBindList();

// make sure got the right number of vars in reply; if not, throw GetException
if(varList.size() != requestedObjectIdentifier.length)
{
throw new SNMPGetException("Incomplete row of table received", 0, SNMPRequestException.FAILED);
}

// copy the retrieved variable pairs into retrievedVars
for (int i = 0; i < varList.size(); i++)
{
SNMPSequence newPair = (SNMPSequence)(varList.getSNMPObjectAt(i));

SNMPObjectIdentifier newObjectIdentifier = (SNMPObjectIdentifier)(newPair.getSNMPObjectAt(0));
@SuppressWarnings("unused")
SNMPObject newValue = newPair.getSNMPObjectAt(1);

// now see if retrieved ID starts with table base; if not, done with table - break
String newOIDString = (String)newObjectIdentifier.toString();
if (!newOIDString.startsWith(baseID[i]))
{
if (i == 0)
{
// it's the first element of the row; just break
break retrievalLoop;
}
}

retrievedVars.addSNMPObject(newPair);

// set requested identifiers array to current identifiers to do get-next for next row
requestedObjectIdentifier[i] = newObjectIdentifier;
}


requestID++;

}


}


return retrievedVars;

}






/**
* Set the size of the buffer used to receive response packets. RFC 1157 stipulates that an SNMP
* implementation must be able to receive packets of at least 484 bytes, so if you try to set the
* size to a value less than this, the receive buffer size will be set to 484 bytes. In addition,
* the maximum size of a UDP packet payload is 65535 bytes, so setting the buffer to a larger size
* will just waste memory. The default value is 512 bytes. The value may need to be increased if
* get-requests are issued for multiple OIDs.
*/

public void setReceiveBufferSize(int receiveBufferSize)
{
if (receiveBufferSize >= 484)
{
this.receiveBufferSize = receiveBufferSize;
}
else
{
this.receiveBufferSize = 484;
}
}



/**
* Returns the current size of the buffer used to receive response packets.
*/

public int getReceiveBufferSize()
{
return this.receiveBufferSize;
}



}

}

9 réponses

cs_DARKSIDIOUS Messages postés 15814 Date d'inscription jeudi 8 août 2002 Statut Membre Dernière intervention 4 mars 2013 131
17 mars 2010 à 11:06
Salut,

sa ne fonctionne pas


C'est sûr qu'avec autant de détail, ca va être facile de t'aider...

Qu'est-ce qui "ne fonctionne pas" ?
______________________________________

AVANT de poster votre message, veuillez lire, comprendre, et appliquer notre réglement
0
farahoo Messages postés 45 Date d'inscription vendredi 12 février 2010 Statut Membre Dernière intervention 9 mai 2010
17 mars 2010 à 11:21
salut
en faite jarrive pas alexecuter sur netbeans
jai pa su corriger les erreurs qui existe sur ce programme elles sont plusieurs
netbeans souligne en rouge les lignes suivantes
package org.snmp4ant.snmp;
SNMPMessage receivedMessage = new SNMPMessage(SNMPBERCodec.extractNextTLV(encodedMessage,0).value);
//errorStatus = ((BigInteger)((SNMPInteger)((receivedMessage.getPDU()).getSNMPObjectAt(1))).getValue()).intValue();


varList = (receivedMessage.getPDU()).getVarBindList();
SNMPSequence newPair = (SNMPSequence)(varList.getSNMPObjectAt(0));

SNMPObjectIdentifier newObjectIdentifier = (SNMPObjectIdentifier)(newPair.getSNMPObjectAt(0));
@SuppressWarnings("unused")
SNMPObject newValue = newPair.getSNMPObjectAt(1);

retrievedVars.addSNMPObject(newPair);
0
cs_DARKSIDIOUS Messages postés 15814 Date d'inscription jeudi 8 août 2002 Statut Membre Dernière intervention 4 mars 2013 131
17 mars 2010 à 11:40
Salut,

Très certainement un problème de bibliothèque qui ne sont pas ajouté au classpath de ton application.
______________________________________

AVANT de poster votre message, veuillez lire, comprendre, et appliquer notre réglement
0
farahoo Messages postés 45 Date d'inscription vendredi 12 février 2010 Statut Membre Dernière intervention 9 mai 2010
17 mars 2010 à 11:42
comment je lajoute ds le classpath je ne sais pas
0

Vous n’avez pas trouvé la réponse que vous recherchez ?

Posez votre question
cs_DARKSIDIOUS Messages postés 15814 Date d'inscription jeudi 8 août 2002 Statut Membre Dernière intervention 4 mars 2013 131
17 mars 2010 à 11:57
Salut,

Déjà, il te faut connaître les dépendances du code que tu utilises (voir sur le site où tu as trouvé le code, ou demande à l'auteur), ensuite, il te faut télécharger les jar de ces dépendances, et les rajouter en tant que bibliothèques externes sous netbeans (pour cà, je te laisse regarder sur le net ou attendre la réponse d'autres membres : je n'utilise pas netbeans).
______________________________________

AVANT de poster votre message, veuillez lire, comprendre, et appliquer notre réglement
0
farahoo Messages postés 45 Date d'inscription vendredi 12 février 2010 Statut Membre Dernière intervention 9 mai 2010
17 mars 2010 à 12:03
ok
jai des fichiers rpm comment les ouvrir
0
cs_DARKSIDIOUS Messages postés 15814 Date d'inscription jeudi 8 août 2002 Statut Membre Dernière intervention 4 mars 2013 131
17 mars 2010 à 12:17
Salut,

Tu es sous linux ?

Un fichier rpm est un package d'installation pour mandriva il me semble.
______________________________________

AVANT de poster votre message, veuillez lire, comprendre, et appliquer notre réglement
0
farahoo Messages postés 45 Date d'inscription vendredi 12 février 2010 Statut Membre Dernière intervention 9 mai 2010
17 mars 2010 à 13:30
non
je ne suis pas sous linux
0
cs_DARKSIDIOUS Messages postés 15814 Date d'inscription jeudi 8 août 2002 Statut Membre Dernière intervention 4 mars 2013 131
17 mars 2010 à 13:42
Salut,

Alors je vois pas trop qu'est-ce que tu veux faire avec ton fichier rpm : il te faut les fichiers jar des dépendances du code que tu as trouvé.

Au pire, demande de l'aide à l'auteur de ce code.

______________________________________

AVANT de poster votre message, veuillez lire, comprendre, et appliquer notre réglement
0