| public decode ( byte buffer, int length ) : int | ||
| buffer | byte | Packet buffer |
| length | int | Buffer length |
| return | int | |
///<summary>
///Actual work in backgroundworker thread
///</summary>
private void worker_DoWork(object sender, DoWorkEventArgs e)
{
BackgroundWorker worker = sender as BackgroundWorker;
// Construct a socket and bind it to the trap manager port 10162
Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
IPEndPoint ipep = new IPEndPoint(IPAddress.Any, 162);
EndPoint ep = (EndPoint)ipep;
socket.Bind(ep);
// Disable timeout processing. Just block until packet is received
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 0);
bool run = true;
int inlen;
int ver;
while (run)
{
byte[] indata = new byte[16 * 1024];
// 16KB receive buffer int inlen = 0;
IPEndPoint peer = new IPEndPoint(IPAddress.Any, 0);
EndPoint inep = (EndPoint)peer;
try
{
inlen = socket.ReceiveFrom(indata, ref inep);
}
catch (Exception ex)
{
Console.WriteLine("Exception {0}", ex.Message);
inlen = -1;
}
if (inlen > 0)
{
// Check protocol version int
ver = SnmpPacket.GetProtocolVersion(indata, inlen);
if (ver == (int)SnmpVersion.Ver1)
{
// Parse SNMP Version 1 TRAP packet
SnmpV1TrapPacket pkt = new SnmpV1TrapPacket();
pkt.decode(indata, inlen);
Console.WriteLine("** SNMP Version 1 TRAP received from {0}:", inep.ToString());
Console.WriteLine("*** Trap generic: {0}", pkt.Pdu.Generic);
Console.WriteLine("*** Trap specific: {0}", pkt.Pdu.Specific);
Console.WriteLine("*** Agent address: {0}", pkt.Pdu.AgentAddress.ToString());
Console.WriteLine("*** Timestamp: {0}", pkt.Pdu.TimeStamp.ToString());
Console.WriteLine("*** VarBind count: {0}", pkt.Pdu.VbList.Count);
Console.WriteLine("*** VarBind content:");
//Looking for 1.3.6.1.3.5.0 and refreshing Plot.
double voltage = Double.Parse(pkt.Pdu.VbList[4].Value.ToString());
voltageLine.Points.Add(new DataPoint(double.Parse(pkt.Pdu.TimeStamp.ToString()), voltage));
model.RefreshPlot(true);
Console.WriteLine("** End of SNMP Version 1 TRAP data.");
}
}
else
{
if (inlen == 0)
Console.WriteLine("Zero length packet received.");
}
}
Yield(1000000);
}
/// <summary>
/// Thread that will keep listening for traps
/// </summary>
public void TrapThread()
{
// Construct a socket and bind it to the trap manager port 162
Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
IPEndPoint ipep = new IPEndPoint(IPAddress.Any, 16009);
EndPoint ep = (EndPoint)ipep;
socket.Bind(ep);
// Disable timeout processing. Just block until packet is received
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 0);
run_trap_thread = true;
int inlen = -1;
while (run_trap_thread)
{
byte[] indata = new byte[16 * 1024];
// 16KB receive buffer int inlen = 0;
IPEndPoint peer = new IPEndPoint(IPAddress.Any, 0);
EndPoint inep = (EndPoint)peer;
inlen = socket.ReceiveFrom(indata, ref inep);
if (inlen > 0) {
// Check protocol version int
int ver = SnmpPacket.GetProtocolVersion(indata, inlen);
// Parse SNMP Version 1 TRAP packet
SnmpV1TrapPacket pkt = new SnmpV1TrapPacket();
pkt.decode(indata, inlen);
string underAttackOid = "1";
string foundEnemyOid = "2";
string headOid = "5.1";
string legsOid = "5.2";
string armsOid = "5.3";
foreach (Vb v in pkt.Pdu.VbList) {
Debug.Log("for each vb");
switch (v.Oid.ToString())
{
case "1.3.2.5." + "1":
underAttack = int.Parse(v.Value.ToString());
break;
// found enemy
case "1.3.2.5." + "2":
foundEnemy = int.Parse(v.Value.ToString());
break;
// head bellow 50
case "1.3.2.5." + "5.1":
healthWarning = 1;
HeadHealth = int.Parse(v.Value.ToString());
break;
// head bellow 25
case "1.3.2.5." + "5.2":
healthWarning = 1;
LegsHealth = int.Parse(v.Value.ToString());
break;
// head destroyed
case "1.3.2.5." + "5.3":
healthWarning = 1;
ArmHealth = int.Parse(v.Value.ToString());
break;
}
}
} else {
if (inlen == 0)
Console.WriteLine("Zero length packet received.");
}
}
Debug.Log(" trap thread EXITT");
}
public void zlapPulapke()
{
/*!
*Kod pochodzi ze strony http://www.snmpsharpnet.com/?page_id=117
*/
Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
IPEndPoint ipep = new IPEndPoint(IPAddress.Any, 162);
EndPoint ep = (EndPoint)ipep;
socket.Bind(ep);
// Disable timeout processing. Just block until packet is received
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 0);
bool run = true;
int inlen = -1;
while (run)
{
byte[] indata = new byte[16 * 1024];
// 16KB receive buffer int inlen = 0;
IPEndPoint peer = new IPEndPoint(IPAddress.Any, 0);
EndPoint inep = (EndPoint)peer;
try
{
inlen = socket.ReceiveFrom(indata, ref inep);
}
catch (Exception ex)
{
Console.WriteLine("Exception {0}", ex.Message);
inlen = -1;
}
if (inlen > 0)
{
Console.WriteLine("TAK");
listaWierszyZeZlapanejPualpki.Clear();
// Check protocol version int
int ver = SnmpPacket.GetProtocolVersion(indata, inlen);
if (ver == (int)SnmpVersion.Ver1)
{
// Parse SNMP Version 1 TRAP packet
SnmpV1TrapPacket pkt = new SnmpV1TrapPacket();
pkt.decode(indata, inlen);
listaWierszyZeZlapanejPualpki.Add("** SNMP Version 1 TRAP otrzymane od " + inep.ToString());
listaWierszyZeZlapanejPualpki.Add("*** Trap generic: " + pkt.Pdu.Generic);
listaWierszyZeZlapanejPualpki.Add("*** Trap specific: " + pkt.Pdu.Specific);
listaWierszyZeZlapanejPualpki.Add("*** Agent address: " + pkt.Pdu.AgentAddress.ToString());
listaWierszyZeZlapanejPualpki.Add("*** Timestamp: " + pkt.Pdu.TimeStamp.ToString());
listaWierszyZeZlapanejPualpki.Add("*** VarBind count: " + pkt.Pdu.VbList.Count);
listaWierszyZeZlapanejPualpki.Add("*** VarBind content:");
foreach (Vb v in pkt.Pdu.VbList)
{
StringBuilder budowaStringa = new StringBuilder();
budowaStringa.Append("**** ");
budowaStringa.Append(v.Oid.ToString());
budowaStringa.Append(" " + SnmpConstants.GetTypeName(v.Value.Type));
budowaStringa.Append(": " + v.Value.ToString());
listaWierszyZeZlapanejPualpki.Add(budowaStringa.ToString());
}
listaWierszyZeZlapanejPualpki.Add("** Koniec SNMP Version 1 TRAP data.");
flagaWierszyZeZlapanejPulapki = true;
//return true;
}
else {
// Parse SNMP Version 2 TRAP packet
SnmpV2Packet pkt = new SnmpV2Packet();
pkt.decode(indata, inlen);
listaWierszyZeZlapanejPualpki.Clear();
listaWierszyZeZlapanejPualpki.Add("** SNMP Version 2 TRAP otrzymane od " + inep.ToString());
if ((SnmpSharpNet.PduType)pkt.Pdu.Type != PduType.V2Trap)
{
listaWierszyZeZlapanejPualpki.Add("*** NOT an SNMPv2 trap ****");
}
else {
listaWierszyZeZlapanejPualpki.Add("*** Community: " + pkt.Community.ToString());
listaWierszyZeZlapanejPualpki.Add("*** VarBind count: " + pkt.Pdu.VbList.Count);
listaWierszyZeZlapanejPualpki.Add("*** VarBind content:");
foreach (Vb v in pkt.Pdu.VbList)
{
StringBuilder budowaStringa = new StringBuilder();
budowaStringa.Append("**** ");
budowaStringa.Append(v.Oid.ToString());
budowaStringa.Append(" " + SnmpConstants.GetTypeName(v.Value.Type));
budowaStringa.Append(": " + v.Value.ToString());
listaWierszyZeZlapanejPualpki.Add(budowaStringa.ToString());
}
listaWierszyZeZlapanejPualpki.Add("** Koniec SNMP Version 2 TRAP data.");
}
flagaWierszyZeZlapanejPulapki = true;
//return true;
}
}
else {
if (inlen == 0)
{
listaWierszyZeZlapanejPualpki.Clear();
listaWierszyZeZlapanejPualpki.Add("Przechwycono pusty pakiet");
flagaWierszyZeZlapanejPulapki = true;
//return true;
}
}
}
//return false;
}
private void button1_Click(object sender, EventArgs e)
{
// Construct a socket and bind it to the trap manager port 162
Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
IPEndPoint ipep = new IPEndPoint(IPAddress.Any, 162);
EndPoint ep = (EndPoint)ipep;
socket.Bind(ep);
// Disable timeout processing. Just block until packet is received
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 0);
bool run = true;
int inlen = -1;
while (run)
{
Application.DoEvents();
Thread.Sleep(100);
byte[] indata = new byte[16 * 1024];
// 16KB receive buffer int inlen = 0;
IPEndPoint peer = new IPEndPoint(IPAddress.Any, 0);
EndPoint inep = (EndPoint)peer;
try
{
inlen = socket.ReceiveFrom(indata, ref inep);
}
catch (Exception ex)
{
Console.WriteLine("Exception {0}", ex.Message);
inlen = -1;
}
if (inlen > 0)
{
// Check protocol version int
int ver = SnmpPacket.GetProtocolVersion(indata, inlen);
if (ver == (int)SnmpVersion.Ver1)
{
// Parse SNMP Version 1 TRAP packet
SnmpV1TrapPacket pkt = new SnmpV1TrapPacket();
pkt.decode(indata, inlen);
Console.WriteLine("** SNMP Version 1 TRAP received from {0}:", inep.ToString());
Console.WriteLine("*** Trap generic: {0}", pkt.Pdu.Generic);
Console.WriteLine("*** Trap specific: {0}", pkt.Pdu.Specific);
Console.WriteLine("*** Agent address: {0}", pkt.Pdu.AgentAddress.ToString());
Console.WriteLine("*** Timestamp: {0}", pkt.Pdu.TimeStamp.ToString());
Console.WriteLine("*** VarBind count: {0}", pkt.Pdu.VbList.Count);
Console.WriteLine("*** VarBind content:");
foreach (Vb v in pkt.Pdu.VbList)
{
Console.WriteLine("**** {0} {1}: {2}", v.Oid.ToString(), SnmpConstants.GetTypeName(v.Value.Type), v.Value.ToString());
textBox1.Text += "\n" + v.Oid.ToString() + "|" + SnmpConstants.GetTypeName(v.Value.Type) + "|" + v.Value.ToString();
}
Console.WriteLine("** End of SNMP Version 1 TRAP data.");
}
else
{
// Parse SNMP Version 2 TRAP packet
SnmpV2Packet pkt = new SnmpV2Packet();
pkt.decode(indata, inlen);
Console.WriteLine("** SNMP Version 2 TRAP received from {0}:", inep.ToString());
if ((SnmpSharpNet.PduType)pkt.Pdu.Type != PduType.V2Trap)
{
Console.WriteLine("*** NOT an SNMPv2 trap ****");
}
else
{
Console.WriteLine("*** Community: {0}", pkt.Community.ToString());
Console.WriteLine("*** VarBind count: {0}", pkt.Pdu.VbList.Count);
Console.WriteLine("*** VarBind content:");
foreach (Vb v in pkt.Pdu.VbList)
{
Console.WriteLine("**** {0} {1}: {2}",
v.Oid.ToString(), SnmpConstants.GetTypeName(v.Value.Type), v.Value.ToString());
}
Console.WriteLine("** End of SNMP Version 2 TRAP data.");
}
}
}
else
{
if (inlen == 0)
Console.WriteLine("Zero length packet received.");
}
}
}
///<summary>
///Actual work in backgroundworker thread
///</summary>
private void worker_DoWork(object sender, DoWorkEventArgs e)
{
BackgroundWorker worker = sender as BackgroundWorker;
// Construct a socket and bind it to the trap manager port 10162
Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
IPEndPoint ipep = new IPEndPoint(IPAddress.Any, 10162);
EndPoint ep = (EndPoint)ipep;
socket.Bind(ep);
// Disable timeout processing. Just block until packet is received
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 0);
bool run = true;
int inlen;
int ver;
while (run)
{
byte[] indata = new byte[16 * 1024];
// 16KB receive buffer int inlen = 0;
IPEndPoint peer = new IPEndPoint(IPAddress.Any, 0);
EndPoint inep = (EndPoint)peer;
try
{
inlen = socket.ReceiveFrom(indata, ref inep);
}
catch (Exception ex)
{
Console.WriteLine("Exception {0}", ex.Message);
inlen = -1;
}
if (inlen > 0)
{
// Check protocol version int
ver = SnmpPacket.GetProtocolVersion(indata, inlen);
if (ver == (int)SnmpVersion.Ver1)
{
// Parse SNMP Version 1 TRAP packet
SnmpV1TrapPacket pkt = new SnmpV1TrapPacket();
pkt.decode(indata, inlen);
Console.WriteLine("** SNMP Version 1 TRAP received from {0}:", inep.ToString());
Console.WriteLine("*** Trap generic: {0}", pkt.Pdu.Generic);
Console.WriteLine("*** Trap specific: {0}", pkt.Pdu.Specific);
Console.WriteLine("*** Agent address: {0}", pkt.Pdu.AgentAddress.ToString());
Console.WriteLine("*** Timestamp: {0}", pkt.Pdu.TimeStamp.ToString());
Console.WriteLine("*** VarBind count: {0}", pkt.Pdu.VbList.Count);
Console.WriteLine("*** VarBind content:");
foreach (Vb v in pkt.Pdu.VbList)
{
Console.WriteLine("**** {0} {1}: {2}", v.Oid.ToString(), SnmpConstants.GetTypeName(v.Value.Type), v.Value.ToString());
string voltage = v.Value.ToString();
double max = 3.3;
string[] values = voltage.Split('V');
_worker.ReportProgress((int)Math.Floor((double)((double.Parse(values[0], CultureInfo.InvariantCulture) / max * 100))));
currentVoltage = voltage;
double test = double.Parse(values[0]);
voltageLine.Points.Add(new DataPoint(double.Parse(pkt.Pdu.TimeStamp.ToString()), double.Parse(values[0], CultureInfo.InvariantCulture)));
model.RefreshPlot(true);
}
Console.WriteLine("** End of SNMP Version 1 TRAP data.");
}
}
else
{
if (inlen == 0)
Console.WriteLine("Zero length packet received.");
}
}
Yield(1000000);
}
private void backgroundWorker_DoWork(object sender, DoWorkEventArgs e)
{
BackgroundWorker parentWorker = sender as BackgroundWorker;
bool running = true;
// Construct a socket and bind it to the trap manager port 162
Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
IPAddress ip = IPAddress.Parse(LISTEN_IP);
IPEndPoint ipep = new IPEndPoint(ip, LISTEN_PORT);
EndPoint ep = (EndPoint)ipep;
socket.Bind(ep);
// Disable timeout processing. Just block until packet is received
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 0);
while (running) {
byte[] indata = new byte[16 * 1024];
// 16KB receive buffer int inlen = 0;
IPEndPoint peer = new IPEndPoint(IPAddress.Any, 0);
EndPoint inep = (EndPoint)peer;
int inlen = 0;
int ver;
try {
inlen = socket.ReceiveFrom(indata, ref inep);
} catch (Exception ex) {
Console.WriteLine("Exception {0}", ex.Message);
inlen = -1;
}
if (inlen > 0) {
Console.WriteLine("inlen > 0");
// Check protocol version int
ver = SnmpPacket.GetProtocolVersion(indata, inlen);
if (ver == (int)SnmpVersion.Ver1) {
// Parse SNMP Version 1 TRAP packet
SnmpV1TrapPacket pkt = new SnmpV1TrapPacket();
pkt.decode(indata, inlen);
Console.WriteLine("** SNMP Version 1 TRAP received from {0}:", inep.ToString());
Console.WriteLine("*** Trap generic: {0}", pkt.Pdu.Generic);
Console.WriteLine("*** Trap specific: {0}", pkt.Pdu.Specific);
Console.WriteLine("*** Agent address: {0}", pkt.Pdu.AgentAddress.ToString());
Console.WriteLine("*** Timestamp: {0}", pkt.Pdu.TimeStamp.ToString());
Console.WriteLine("*** VarBind count: {0}", pkt.Pdu.VbList.Count);
Console.WriteLine("*** VarBind content:");
foreach (Vb v in pkt.Pdu.VbList) {
Console.WriteLine("**** {0} {1}: {2}", v.Oid.ToString(), SnmpConstants.GetTypeName(v.Value.Type), v.Value.ToString());
if (v.Oid.ToString().Equals(SNMP_OID_VOLTAGE)) {
this.currentVoltage = double.Parse(v.Value.ToString(), CultureInfo.InvariantCulture);
this.lsVoltage.Points.Add(new DataPoint(pkt.Pdu.TimeStamp, this.currentVoltage));
dataPoints++;
if (dataPoints >= 50) {
for (int i = 0; i < dataPoints - 50; i++) {
this.lsVoltage.Points.RemoveAt(i);
dataPoints--;
}
}
this.pModel.RefreshPlot(true);
parentWorker.ReportProgress((int)Math.Floor((this.currentVoltage / MAX_VOLTAGE) * 100));
}
}
Console.WriteLine("** End of SNMP Version 1 TRAP data.");
}
} else {
if (inlen == 0)
Console.WriteLine("Zero length packet received.");
}
}
}
