Examples with Snmp org.opennms.netmgt.xml.event.Snmp used on opensource projects

Example 1 with Snmp

use of org.opennms.netmgt.xml.event.Snmp in project opennms by OpenNMS.

the class SnmpTrapHelper method forwardV1Trap.

/**
 * Create an SNMP V1 trap, based on the content of the specified event, and
 * forward the trap to the specified address and port. It is assumed that
 * the specified event represents an SNMP V1 or V2 trap that was received by
 * OpenNMS (TrapD).
 *
 * @param event
 *            The event upon which the trap content should be based
 * @param destAddr
 *            The address to which the trap should be forwarded
 * @param destPort
 *            The port to which the trap should be forwarded
 * @exception Throws
 *                SnmpTrapHelperException if the variable binding cannot be
 *                added to the trap for any reason.
 * @throws org.opennms.netmgt.scriptd.helper.SnmpTrapHelperException if any.
 */
public void forwardV1Trap(Event event, String destAddr, int destPort) throws SnmpTrapHelperException {
    // the event must correspond to an SNMP trap
    Snmp snmpInfo = event.getSnmp();
    if (snmpInfo == null) {
        throw new SnmpTrapHelperException("Cannot forward an event with no SNMP info: " + event.getUei());
    }
    // check the version of the original trap
    String version = snmpInfo.getVersion();
    SnmpV1TrapBuilder trap = SnmpUtils.getV1TrapBuilder();
    if ("v1".equals(version)) {
        trap.setEnterprise(SnmpObjId.get(snmpInfo.getId()));
        InetAddress agentAddress;
        agentAddress = InetAddressUtils.addr(event.getSnmphost());
        if (agentAddress == null) {
            throw new SnmpTrapHelperException("Invalid ip address.");
        }
        trap.setAgentAddress(agentAddress);
        if (snmpInfo.hasGeneric()) {
            trap.setGeneric(snmpInfo.getGeneric());
        }
        if (snmpInfo.hasSpecific()) {
            trap.setSpecific(snmpInfo.getSpecific());
        }
        trap.setTimeStamp(snmpInfo.getTimeStamp());
        // varbinds
        int i = 0;
        for (Parm parm : event.getParmCollection()) {
            try {
                Value value = parm.getValue();
                addVarBinding(trap, parm.getParmName(), value.getType(), value.getEncoding(), value.getContent());
            } catch (SnmpTrapHelperException e) {
                throw new SnmpTrapHelperException(e.getMessage() + " in event parm[" + i + "]");
            } finally {
                i++;
            }
        }
    } else if ("v2".equals(version)) {
        // converting V2 trap to V1 (see RFC2576)
        trap.setEnterprise(SnmpObjId.get(snmpInfo.getId()));
        String addr = null;
        for (Parm parm : event.getParmCollection()) {
            if (SNMP_TRAP_ADDRESS_OID.equals(parm.getParmName())) {
                addr = parm.getValue().getContent();
                break;
            }
        }
        if (addr == null) {
            addr = "0.0.0.0";
        }
        InetAddress agentAddress;
        agentAddress = InetAddressUtils.addr(addr);
        if (agentAddress == null) {
            throw new SnmpTrapHelperException("Invalid ip address.");
        }
        trap.setAgentAddress(agentAddress);
        trap.setGeneric(snmpInfo.getGeneric());
        trap.setSpecific(snmpInfo.getSpecific());
        trap.setTimeStamp(snmpInfo.getTimeStamp());
        // varbinds
        int i = 0;
        for (Parm parm : event.getParmCollection()) {
            Value value = parm.getValue();
            if (!(EventConstants.TYPE_SNMP_COUNTER64.equals(value.getType()))) {
                try {
                    addVarBinding(trap, parm.getParmName(), value.getType(), value.getEncoding(), value.getContent());
                } catch (SnmpTrapHelperException e) {
                    throw new SnmpTrapHelperException(e.getMessage() + " in event parm[" + i + "]");
                }
            }
            i++;
        }
    } else {
        throw new SnmpTrapHelperException("Invalid SNMP version: " + version);
    }
    // send the trap
    sendTrap(destAddr, destPort, snmpInfo.getCommunity(), trap);
}

Example 2 with Snmp

use of org.opennms.netmgt.xml.event.Snmp in project opennms by OpenNMS.

the class SnmpTrapHelper method forwardV2Trap.

/**
 * Create an SNMP V2 trap, based on the content of the specified event, and
 * forward the trap to the specified address and port. It is assumed that
 * the specified event represents an SNMP V1 or V2 trap that was received by
 * OpenNMS (TrapD).
 *
 * @param event
 *            The event upon which the trap content should be based
 * @param destAddr
 *            The address to which the trap should be forwarded
 * @param destPort
 *            The port to which the trap should be forwarded
 * @exception Throws
 *                SnmpTrapHelperException if the variable binding cannot be
 *                added to the trap for any reason.
 * @throws org.opennms.netmgt.scriptd.helper.SnmpTrapHelperException if any.
 */
public void forwardV2Trap(Event event, String destAddr, int destPort) throws SnmpTrapHelperException {
    // the event must correspond to an SNMP trap
    Snmp snmpInfo = event.getSnmp();
    if (snmpInfo == null) {
        throw new SnmpTrapHelperException("Cannot forward an event with no SNMP info: " + event.getUei());
    }
    // check the version of the original trap
    String version = snmpInfo.getVersion();
    SnmpTrapBuilder packet = SnmpUtils.getV2TrapBuilder();
    if ("v1".equals(version)) {
        // converting V1 trap to V2 (see RFC2576)
        addVarBinding(packet, SNMP_SYSUPTIME_OID, EventConstants.TYPE_SNMP_TIMETICKS, Long.toString(snmpInfo.getTimeStamp()));
        String oid;
        if (snmpInfo.getGeneric() == ENTERPRISE_SPECIFIC && snmpInfo.hasSpecific()) {
            oid = snmpInfo.getId() + ".0." + snmpInfo.getSpecific();
        } else {
            oid = SNMP_TRAPS + '.' + (snmpInfo.getGeneric() + 1);
        }
        addVarBinding(packet, SNMP_TRAP_OID, EventConstants.TYPE_SNMP_OBJECT_IDENTIFIER, oid);
        // add the V1 var bindings
        boolean addrPresent = false;
        boolean communityPresent = false;
        boolean enterprisePresent = false;
        int i = 0;
        for (Parm parm : event.getParmCollection()) {
            Value value = parm.getValue();
            try {
                addVarBinding(packet, parm.getParmName(), value.getType(), value.getEncoding(), value.getContent());
            } catch (SnmpTrapHelperException e) {
                throw new SnmpTrapHelperException(e.getMessage() + " in event parm[" + i + "]");
            }
            if (SNMP_TRAP_ADDRESS_OID.equals(parm.getParmName())) {
                addrPresent = true;
            } else if (SNMP_TRAP_COMMUNITY_OID.equals(parm.getParmName())) {
                communityPresent = true;
            } else if (SNMP_TRAP_ENTERPRISE_OID.equals(parm.getParmName())) {
                enterprisePresent = true;
            }
            i++;
        }
        if (!addrPresent) {
            addVarBinding(packet, SNMP_TRAP_ADDRESS_OID, EventConstants.TYPE_SNMP_IPADDRESS, event.getSnmphost());
        }
        if (!communityPresent) {
            addVarBinding(packet, SNMP_TRAP_COMMUNITY_OID, EventConstants.TYPE_SNMP_OCTET_STRING, snmpInfo.getCommunity());
        }
        if (!enterprisePresent) {
            addVarBinding(packet, SNMP_TRAP_ENTERPRISE_OID, EventConstants.TYPE_SNMP_OBJECT_IDENTIFIER, snmpInfo.getId());
        }
    } else if ("v2".equals(version)) {
        addVarBinding(packet, SNMP_SYSUPTIME_OID, EventConstants.TYPE_SNMP_TIMETICKS, Long.toString(snmpInfo.getTimeStamp()));
        String oid;
        if (snmpInfo.getGeneric() == ENTERPRISE_SPECIFIC) {
            oid = snmpInfo.getId() + "." + snmpInfo.getSpecific();
        } else {
            oid = SNMP_TRAPS + '.' + (snmpInfo.getGeneric() + 1);
        }
        addVarBinding(packet, SNMP_TRAP_OID, EventConstants.TYPE_SNMP_OBJECT_IDENTIFIER, oid);
        int i = 0;
        for (Parm parm : event.getParmCollection()) {
            Value value = parm.getValue();
            try {
                addVarBinding(packet, parm.getParmName(), value.getType(), value.getEncoding(), value.getContent());
            } catch (SnmpTrapHelperException e) {
                throw new SnmpTrapHelperException(e.getMessage() + " in event parm[" + i + "]");
            }
            i++;
        }
    } else {
        throw new SnmpTrapHelperException("Invalid SNMP version: " + version);
    }
    // send the trap
    sendTrap(destAddr, destPort, snmpInfo.getCommunity(), packet);
}

Example 3 with Snmp

use of org.opennms.netmgt.xml.event.Snmp in project opennms by OpenNMS.

the class SnmpTrapHelper method forwardTrap.

/**
 * Create an SNMP trap, based on the content of the specified event, and
 * forward the trap to the specified address and port. It is assumed that
 * the specified event represents an SNMP V1 or V2 trap that was received by
 * OpenNMS (TrapD). The type of trap to be created depends on the type of
 * the original trap (i.e. if the original trap was an SNMP V1 trap, an SNMP
 * V1 trap will be created; if the original trap was an SNMP V2 trap, an
 * SNMP V2 trap will be created).
 *
 * @param event
 *            The event upon which the trap content should be based
 * @param destAddr
 *            The address to which the trap should be forwarded
 * @param destPort
 *            The port to which the trap should be forwarded
 * @exception Throws
 *                SnmpTrapHelperException if the variable binding cannot be
 *                added to the trap for any reason.
 * @throws org.opennms.netmgt.scriptd.helper.SnmpTrapHelperException if any.
 */
public void forwardTrap(Event event, String destAddr, int destPort) throws SnmpTrapHelperException {
    Snmp snmpInfo = event.getSnmp();
    if (snmpInfo == null) {
        throw new SnmpTrapHelperException("Cannot forward an event with no SNMP info: " + event.getUei());
    }
    String version = snmpInfo.getVersion();
    if ("v1".equals(version)) {
        forwardV1Trap(event, destAddr, destPort);
    } else if ("v2".equals(version)) {
        forwardV2Trap(event, destAddr, destPort);
    } else {
        throw new SnmpTrapHelperException("Invalid SNMP version: " + version);
    }
}