Examples with DefaultUdpTransportMapping org.snmp4j.transport.DefaultUdpTransportMapping used on opensource projects

Example 11 with DefaultUdpTransportMapping

use of org.snmp4j.transport.DefaultUdpTransportMapping in project opennms by OpenNMS.

the class Snmp4JStrategy method registerForTraps.

@Override
public void registerForTraps(final TrapNotificationListener listener, InetAddress address, int snmpTrapPort, List<SnmpV3User> snmpUsers) throws IOException {
    final RegistrationInfo info = new RegistrationInfo(listener, address, snmpTrapPort);
    final Snmp4JTrapNotifier trapNotifier = new Snmp4JTrapNotifier(listener);
    info.setHandler(trapNotifier);
    final UdpAddress udpAddress;
    if (address == null) {
        udpAddress = new UdpAddress(snmpTrapPort);
    } else {
        udpAddress = new UdpAddress(address, snmpTrapPort);
    }
    // Set socket option SO_REUSEADDR so that we can bind to the port even if it
    // has recently been closed by passing 'true' as the second argument here.
    final DefaultUdpTransportMapping transport = new DefaultUdpTransportMapping(udpAddress, true);
    // Increase the receive buffer for the socket
    LOG.debug("Attempting to set receive buffer size to {}", Integer.MAX_VALUE);
    transport.setReceiveBufferSize(Integer.MAX_VALUE);
    LOG.debug("Actual receive buffer size is {}", transport.getReceiveBufferSize());
    info.setTransportMapping(transport);
    Snmp snmp = new Snmp(transport);
    snmp.addCommandResponder(trapNotifier);
    if (snmpUsers != null) {
        for (SnmpV3User user : snmpUsers) {
            SnmpAgentConfig config = new SnmpAgentConfig();
            config.setVersion(SnmpConfiguration.VERSION3);
            config.setSecurityName(user.getSecurityName());
            config.setAuthProtocol(user.getAuthProtocol());
            config.setAuthPassPhrase(user.getAuthPassPhrase());
            config.setPrivProtocol(user.getPrivProtocol());
            config.setPrivPassPhrase(user.getPrivPassPhrase());
            Snmp4JAgentConfig agentConfig = new Snmp4JAgentConfig(config);
            UsmUser usmUser = new UsmUser(agentConfig.getSecurityName(), agentConfig.getAuthProtocol(), agentConfig.getAuthPassPhrase(), agentConfig.getPrivProtocol(), agentConfig.getPrivPassPhrase());
            /* This doesn't work as expected. Basically SNMP4J is ignoring the engineId
                if (user.getEngineId() == null) {
                    snmp.getUSM().addUser(agentConfig.getSecurityName(), usmUser);
                } else {
                    snmp.getUSM().addUser(agentConfig.getSecurityName(), new OctetString(user.getEngineId()), usmUser);
                }
                */
            snmp.getUSM().addUser(agentConfig.getSecurityName(), usmUser);
        }
    }
    info.setSession(snmp);
    s_registrations.put(listener, info);
    snmp.listen();
}

Example 12 with DefaultUdpTransportMapping

use of org.snmp4j.transport.DefaultUdpTransportMapping in project opennms by OpenNMS.

the class Snmp4jTrapReceiverIT method testTrapReceiverWithoutOpenNMS.

/*
     * IMPORTANT:
     *
     * The sentence <code>snmp.getUSM().addUser(...)</code>, is the only requirement
     * in order to properly process SNMPv3 traps.
     * 
     * This is related with the credentials that should be created for Trapd in order
     * to properly authenticate and/or decode SNMPv3 traps in OpenNMS.
     * 
     * This is a user that should be configured (or should be used) by the external
     * devices to send SNMPv3 Traps to OpenNMS.
     * 
     * The SNMPv3 users should be configured in trapd-configuration.xml
     */
@Test
public void testTrapReceiverWithoutOpenNMS() throws Exception {
    final Snmp4JStrategy strategy = new Snmp4JStrategy();
    assertEquals(0, m_trapCount);
    LOG.debug("SNMP4J: Register for Traps");
    DefaultUdpTransportMapping transportMapping = null;
    Snmp snmp = null;
    try {
        // Set socket option SO_REUSEADDR so that we can bind to the port even if it
        // has recently been closed by passing 'true' as the second argument here.
        transportMapping = new DefaultUdpTransportMapping(new UdpAddress(9162), true);
        snmp = new Snmp(transportMapping);
        snmp.addCommandResponder(this);
        snmp.getUSM().addUser(new OctetString("opennmsUser"), new UsmUser(new OctetString("opennmsUser"), AuthMD5.ID, new OctetString("0p3nNMSv3"), PrivDES.ID, new OctetString("0p3nNMSv3")));
        snmp.listen();
        sendTraps(strategy, SnmpConfiguration.AUTH_PRIV);
        await().atMost(5, SECONDS).until(() -> m_trapCount, equalTo(2));
    } finally {
        LOG.debug("SNMP4J: Unregister for Traps");
        if (snmp != null) {
            try {
                snmp.close();
            } catch (final IOException e) {
                LOG.debug("Failed to close Snmp object: {}", snmp, e);
            }
        }
        if (transportMapping != null) {
            try {
                transportMapping.close();
            } catch (final IOException e) {
                LOG.debug("Failed to close transport mapping: {}", transportMapping, e);
            }
        }
    }
    LOG.debug("SNMP4J: Checking Trap status");
    assertEquals(2, m_trapCount);
    snmp.getUSM().removeAllUsers();
}

Example 13 with DefaultUdpTransportMapping

use of org.snmp4j.transport.DefaultUdpTransportMapping in project opennms by OpenNMS.

the class MockAgentTest method testGetSysName.

public void testGetSysName() throws IOException {
    Snmp snmp = new Snmp(new DefaultUdpTransportMapping());
    snmp.listen();
    Address addr = new UdpAddress(InetAddress.getLocalHost(), 9161);
    //Address addr = new UdpAddress(InetAddressUtils.addr("192.168.0.100"), 161);
    Target target = new CommunityTarget(addr, new OctetString("public"));
    target.setVersion(SnmpConstants.version1);
    target.setTimeout(3000);
    target.setRetries(3);
    PDUv1 getRequest = new PDUv1();
    getRequest.add(new VariableBinding(new OID("1.3.6.1.2.1.1.5.0")));
    ResponseEvent e = snmp.get(getRequest, target);
    PDU response = e.getResponse();
    assertEquals(new OctetString("mockhost"), response.get(0).getVariable());
}

Example 14 with DefaultUdpTransportMapping

use of org.snmp4j.transport.DefaultUdpTransportMapping in project opennms by OpenNMS.

the class MockSnmpAgentIT method sendRequestV3.

private PDU sendRequestV3(PDU pdu) {
    PDU response = null;
    OctetString userId = new OctetString("opennmsUser");
    OctetString pw = new OctetString("0p3nNMSv3");
    UserTarget target = new UserTarget();
    target.setSecurityLevel(SecurityLevel.AUTH_PRIV);
    target.setSecurityName(userId);
    target.setAddress(new UdpAddress(InetAddressUtils.addr("127.0.0.1"), m_agent.getPort()));
    target.setVersion(SnmpConstants.version3);
    target.setTimeout(DEFAULT_TIMEOUT);
    TransportMapping<UdpAddress> transport = null;
    Snmp snmp = null;
    try {
        USM usm = new USM(SecurityProtocols.getInstance(), new OctetString(MPv3.createLocalEngineID()), 0);
        SecurityModels.getInstance().addSecurityModel(usm);
        transport = new DefaultUdpTransportMapping();
        snmp = new Snmp(transport);
        UsmUser user = new UsmUser(userId, AuthMD5.ID, pw, PrivDES.ID, pw);
        snmp.getUSM().addUser(userId, user);
        transport.listen();
        ResponseEvent e = snmp.send(pdu, target);
        response = e.getResponse();
    } catch (final IOException e) {
        e.printStackTrace();
    } finally {
        if (snmp != null) {
            try {
                snmp.close();
            } catch (final IOException e) {
                e.printStackTrace();
            }
        }
        if (transport != null) {
            try {
                transport.close();
            } catch (final IOException e) {
                e.printStackTrace();
            }
        }
    }
    return response;
}

Example 15 with DefaultUdpTransportMapping

use of org.snmp4j.transport.DefaultUdpTransportMapping in project opennms by OpenNMS.

the class BrocadeMibIT method sendRequestV3.

private PDU sendRequestV3(PDU pdu) throws IOException {
    PDU response;
    OctetString userId = new OctetString("opennmsUser");
    OctetString pw = new OctetString("0p3nNMSv3");
    UserTarget target = new UserTarget();
    target.setSecurityLevel(SecurityLevel.AUTH_PRIV);
    target.setSecurityName(userId);
    target.setAddress(new UdpAddress(m_agent.getInetAddress(), m_agent.getPort()));
    target.setVersion(SnmpConstants.version3);
    target.setTimeout(5000);
    TransportMapping<UdpAddress> transport = null;
    try {
        USM usm = new USM(SecurityProtocols.getInstance(), new OctetString(MPv3.createLocalEngineID()), 0);
        SecurityModels.getInstance().addSecurityModel(usm);
        transport = new DefaultUdpTransportMapping();
        Snmp snmp = new Snmp(transport);
        UsmUser user = new UsmUser(userId, AuthMD5.ID, pw, PrivDES.ID, pw);
        snmp.getUSM().addUser(userId, user);
        transport.listen();
        ResponseEvent e = snmp.send(pdu, target);
        response = e.getResponse();
    } finally {
        if (transport != null) {
            transport.close();
        }
    }
    return response;
}