/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at
* trunk/nasutekds/resource/legal-notices/NasuTekDS.LICENSE
* or https://NasuTekDS.dev.java.net/NasuTekDS.LICENSE.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at
* trunk/nasutekds/resource/legal-notices/NasuTekDS.LICENSE. If applicable,
* add the following below this CDDL HEADER, with the fields enclosed
* by brackets "[]" replaced with your own identifying information:
* Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*
*
* Copyright 2008 Sun Microsystems, Inc.
*/
// NasuTekDS imports
import org.nasutekds.server.snmp.DIRECTORY_SERVER_MIBOidTable;
// OpenDMK imports
//
import com.sun.management.snmp.SnmpDefinitions;
import com.sun.management.snmp.SnmpVarBindList;
import com.sun.management.snmp.SnmpEngine;
import com.sun.management.snmp.SnmpEngineParameters;
import com.sun.management.snmp.SnmpOid;
import com.sun.management.snmp.SnmpOidTableSupport;
import com.sun.management.snmp.SnmpStatusException;
import com.sun.management.snmp.manager.SnmpRequest;
import com.sun.management.snmp.manager.SnmpSession;
import com.sun.management.snmp.manager.SnmpPeer;
import com.sun.management.snmp.manager.SnmpParameters;
import com.sun.management.snmp.manager.usm.SnmpUsmPeer;
import com.sun.management.snmp.manager.usm.SnmpUsmParameters;
/**
* This class perform a SNMP get operation.
*/
public class SNMPGet {
/**
* Gets the calling arguments.
*
* @param args SNMP version + SNMP agent host + SNMP agent port + community
* @return 0 if the init succeeded or 1 if the init failed
*/
public int init(String[] args) {
int rc = 0;
System.out.println("\n");
if (args.length < 5) {
// Missing arguments
System.out.println(
"usage: " +
" -v <SNMP version>" +
" -h <remoteHost>" +
" -p <port>" +
" -o <oids>" +
" -c <community/context>" +
" -u <user>" +
" -l <securityLevel>" +
" -f <securityFile>" +
" -s <connectionStatus>" +
" -n <checkOIDs>" +
" -w <snmpwalk>");
rc = 1;
} else {
for (int i = 0; i < args.length; i++) {
String opt = args[i];
String val = args[i + 1];
switch (opt.charAt(1)) {
case 'v':
version = new Integer(val).intValue();
break;
case 'h':
remoteHost = val;
break;
case 'p':
port = new Integer(val).intValue();
break;
case 'o':
oids = val;
break;
case 'c':
community = val;
break;
case 'u':
user = val;
break;
case 'l':
if (val.compareTo("noauthnopriv") == 0) {
securityLevel = SnmpDefinitions.noAuthNoPriv;
} else if (val.compareTo("authnopriv") == 0) {
securityLevel = SnmpDefinitions.authNoPriv;
} else if (val.compareTo("authpriv") == 0) {
securityLevel = SnmpDefinitions.authPriv;
} else {
System.out.println(
"Unknown security level " + opt.charAt(1) + ".");
rc = 1;
}
break;
case 'f':
securityFile = val;
break;
case 's':
connectStatus = val;
break;
case 'n':
validOIDs = new Boolean(val).booleanValue();
break;
case 'w':
walk = new Boolean(val).booleanValue();
break;
default:
System.out.println("Unknown option -" + opt.charAt(1) + ".");
rc = 1;
}
if (rc == 1) {
break;
}
i = i + 1;
}
}
if (rc == 0) {
System.out.println("init() of SNMPGet succeeded");
} else {
System.out.println("init() of SNMPGet failed");
}
return rc;
}
/**
* Open SNMP connection with SNMP agent.
*
* @return 0 if the connect succeeded or 1 if the connect failed
*/
public int connect() {
int rc = 0;
try {
// The OidTable generated by mibgen when compiling DIRECTORY_SERVER_MIB
//
final SnmpOidTableSupport oidTable = new DIRECTORY_SERVER_MIBOidTable();
// Specify the OidTable containing all the DIRECTORY_SERVER_MIB knowledge
//
SnmpOid.setSnmpOidTable(oidTable);
switch (version) {
case 1:
case 2:
// Create the session
//
session = new SnmpSession("Get V" + version + " session");
// Disable PduFixedOnError option
//
session.snmpOptions.setPduFixedOnError(false);
// Create an SnmpPeer object for representing the entity
// to communicate with.
//
final SnmpPeer agent = new SnmpPeer(remoteHost, port);
// Specify the read and write community to be used
//
final SnmpParameters params = new SnmpParameters(
community,
community);
// Specify the protocol version
//
switch (version) {
case 1:
params.setProtocolVersion(SnmpDefinitions.snmpVersionOne);
break;
case 2:
params.setProtocolVersion(SnmpDefinitions.snmpVersionTwo);
break;
}
// Associate the parameters with the agent
//
agent.setTimeout(timeOut);
agent.setMaxTries(maxRetries);
agent.setParams(params);
// Set the default peer (agent) to a SnmpSession
//
session.setDefaultPeer(agent);
break;
case 3:
// Custom engine parameters
final SnmpEngineParameters engineParameters =
new SnmpEngineParameters();
// Activate encryption
engineParameters.activateEncryption();
// Set the security file
engineParameters.setSecurityFile(securityFile);
// Create the session
//
session = new SnmpSession(
engineParameters,
null,
"Get V3 session",
null);
// SNMP V3 introduces the notion of SnmpEngine. An engine is
// associated to the session. Other objects might need
// the engine. You can access it using getEngine method.
//
final SnmpEngine engine = session.getEngine();
// Create an SnmpUsmPeer object for representing the entity
// to communicate with
//
final SnmpUsmPeer agentV3 = new SnmpUsmPeer(engine, remoteHost, port);
// Create USM parameters for the principal defaultuser (user used when
// requests are sent: the defaultUser is a template and for this
// reason we cannot find it under the user mib (not created as a user)
//
final SnmpUsmParameters paramsV3 = new SnmpUsmParameters(
engine,
user);
// Set the security level authentication but without privacy
//
paramsV3.setSecurityLevel(securityLevel);
// Set the context name
//
if (community.compareTo("null") != 0) {
paramsV3.setContextName(community.getBytes());
}
// Set the contextEngineId discovered by the peer upon
// its creation
//
paramsV3.setContextEngineId(agentV3.getEngineId().getBytes());
// Associate the parameters with the agent
//
agentV3.setTimeout(timeOut);
agentV3.setMaxTries(maxRetries);
agentV3.setParams(paramsV3);
if (securityLevel != SnmpDefinitions.noAuthNoPriv) {
// Discover timeliness of creation and boot
//
try {
agentV3.processUsmTimelinessDiscovery();
} catch (SnmpStatusException e) {
if (connectStatus.compareTo("SnmpStatusException") == 0) {
System.out.println(
"connect() of SNMPGet catched as expected a " +
"SNMP status exception: " + e.getMessage() + "\"");
} else {
System.out.println(
"connect() of SNMPGet should not catch a " +
"SNMP status exception: " + e.getMessage() + "\"");
rc = 1;
}
} catch (Exception e) {
System.out.println(
"connect() of SNMPGet catched an unexpected exception: " +
e.getMessage() + "\"");
rc = 1;
}
}
if (rc == 0) {
// Set the default peer (agent) to a SnmpSession
//
session.setDefaultPeer(agentV3);
}
break;
default:
System.out.println(
"connect() of SNMPGet: Unknown SNMP version: " +
version + " .");
rc = 1;
}
} catch (Exception e) {
System.out.println(
"connect() of SNMPGet catched an unexpected exception: " +
e.getMessage() + "\"");
rc = 1;
}
if (rc == 0) {
System.out.println("connect() of SNMPGet succeeded");
} else {
System.out.println("connect() of SNMPGet failed");
}
return rc;
}
/**
* Perform an SNMP get request on SNMP agent.
*
* @return 0 if the getRequest succeeded or 1 if the getRequest failed
*/
public int getRequest() {
int rc = 0;
String previousOID = "";
try {
// Build the list of variables you want to query
//
final SnmpVarBindList list = new SnmpVarBindList("Get varbind list");
// Read specific OIDs
//
if (walk) {
// Walk request
//
list.addVarBind("0.0");
previousOID = "0.0";
} else {
// Get request
//
list.addVarBind(oids);
}
// Make the SNMP get request
//
System.out.println(
"getRequest() of SNMPGet: Start SNMP V" + version +
" GET request for SNMP agent on \"" + remoteHost +
"\" at port \"" + port + "\".");
while (previousOID.compareTo("end") != 0) {
SnmpRequest request = null;
if (walk) {
// Walk request
//
request = session.snmpGetNextRequest(null, list);
} else {
// Get request
//
request = session.snmpGetRequest(null, list);
}
// Check for a timeout of the request
//
boolean completed =
request.waitForCompletion((maxRetries + 1) * timeOut);
if (completed == false) {
if (connectStatus.compareTo("reqTimeout") != 0) {
System.out.println(
"getRequest() of SNMPGet: Request timed out, " +
"check reachability of agent.");
// Print request
//
System.out.println(
"getRequest() of SNMPGet: Request= " +
request.toString() + ".");
rc = 1;
} else {
System.out.println(
"getRequest() of SNMPGet: Request timed out as expected.");
}
}
if (rc == 0 && completed) {
System.out.println(
"getRequest() of SNMPGet: Finish SNMP V" +
version + " GET request.");
// Now we have a response. Check if the response contains an error
//
String errorStatus = SnmpRequest.snmpErrorToString(
request.getErrorStatus());
if (errorStatus.compareTo("noError") != 0) {
System.out.println(
"getRequest() of SNMPGet: Error status= " +
errorStatus + ".");
System.out.println(
"getRequest() of SNMPGet: Error index= " +
request.getErrorIndex() + ".");
if (errorStatus.compareTo(connectStatus) == 0) {
System.out.println(
"getRequest() of SNMPGet: Get request failed as " +
"expected with " + connectStatus + " status.");
} else {
if (walk && errorStatus.compareTo("noSuchName") == 0) {
System.out.println(
"getRequest() of SNMPGet: Get request failed as " +
"expected with " + connectStatus + " status.");
} else {
System.out.println(
"getRequest() of SNMPGet: Get request should " +
"fail with " + connectStatus + " status.");
rc = 1;
}
}
previousOID = "end";
} else {
// Now we shall display the content of the result
//
SnmpVarBindList resp = request.getResponseVarBindList();
System.out.println("getRequest() of SNMPGet: Result=");
String tmpOID = "";
String realOID = "";
for (int i = 0; i < resp.getVarBindCount(); i++) {
tmpOID = resp.getVarBindAt(i).getOid().toString();
int endIndex = tmpOID.lastIndexOf(".");
String indexOID = tmpOID.substring(endIndex, tmpOID.length());
realOID = tmpOID.substring(0, endIndex);
if (realOID.startsWith("1.3.6.1.2.1.66.2")) {
endIndex = realOID.lastIndexOf(".");
realOID = realOID.substring(0, endIndex);
}
String name = resp.getVarBindAt(i).resolveVarName(realOID).getName();
String value = resp.getVarBindAt(i).getStringValue();
System.out.println(name + indexOID + "=" + value);
if (walk) {
list.removeVarBind(previousOID);
list.addVarBind(tmpOID);
previousOID = tmpOID;
} else {
previousOID = "end";
}
}
if (connectStatus.compareTo("noError") != 0) {
// Request should failed
//
System.out.println(
"getRequest() of SNMPGet: Get request should " +
"fail with " + connectStatus + " status.");
rc = 1;
} else {
if (validOIDs) {
// Check that we obtain correct values for the OIDs
//
if (resp.checkForValidValues()) {
System.out.println(
"getRequest() of SNMPGet: Returned values for" +
" OIDs are correct.");
} else {
System.out.println(
"getRequest() of SNMPGet: Returned values for" +
" OIDs are not correct.");
rc = 1;
}
} else {
// Check that we obtain incorrect values for the OIDs
//
if (resp.checkForValidValues()) {
System.out.println(
"getRequest() of SNMPGet: Returned values for" +
" OIDs should not be correct.");
rc = 1;
} else {
System.out.println(
"getRequest() of SNMPGet: Returned values for" +
" OIDs are not correct as expected.");
}
}
}
}
}
}
} catch (Exception e) {
System.out.println(
"connect() of SNMPGet catched an unexpected exception: " +
e.getMessage() + "\"");
rc = 1;
}
if (rc == 0) {
System.out.println("getRequest() of SNMPGet succeeded");
} else {
System.out.println("getRequest() of SNMPGet failed");
}
return rc;
}
/**
* Close SNMP connection with SNMP agent.
*/
public void disconnect() {
// Stop and destroy the SnmpSession if still there
try {
session.destroySession();
session = null;
} catch (Exception e) {
// possible session already ended
}
System.out.println("disconnect() of SNMPGet succeeded");
}
/**
* Main.
*
* @param args arguments
*/
public static void main(String[] args) {
SNMPGet client = new SNMPGet();
int rc = 0;
// Retrieve parameters
rc = client.init(args);
// If init() succeeded then open connection
if (rc == 0) {
rc = client.connect();
}
// If connect() succeeded then perform get request
if (rc == 0 && connectStatus.compareTo("SnmpStatusException") != 0) {
rc = client.getRequest();
}
// Close connection
client.disconnect();
System.exit(rc);
}
// Arguments
int version = 0;
String remoteHost = null;
int port = 0;
String oids = null;
String community = null;
String user = null;
int securityLevel = SnmpDefinitions.authNoPriv;
String securityFile = null;
static String connectStatus = null;
boolean validOIDs = true;
boolean walk = false;
// SnmpSession
SnmpSession session = null;
int timeOut = 30000; // default value
int maxRetries = 1;
}