public string getSnmp(string oid, string host, int port)
{
string hostIP;
int Port;
string Oid;
string get = "";
Oid = oid;
hostIP = host;
Port = port;
//共同体类型
OctetString community = new OctetString("public");
AgentParameters param = new AgentParameters(community);
//设置snmp版本
param.Version = (int)SnmpVersion.Ver1;
IpAddress agent = new IpAddress(hostIP);
//构建目标
UdpTarget target = new UdpTarget((IPAddress)agent, port, 2000, 1);
Pdu pdu = new Pdu(PduType.Get);
pdu.VbList.Add(Oid);
//发送snmp请求
SnmpV1Packet result = (SnmpV1Packet)target.Request(pdu, param);
get = result.Pdu.VbList[0].Value.ToString();
return(get);
}
}//将对应id的条目的值设置为data
private void GetPrinterResponse(object input_id)
{
string id = input_id.ToString();
string ipaddr = null;
for (int i = 0; i < Common.dt_printer.Rows.Count; i++)
{
string tmp = Common.dt_printer.Rows[i]["Id"].ToString();
if (tmp == (string)id)
{
ipaddr = Common.dt_printer.Rows[i]["dev_ip"].ToString();
}
}
int feq = Common.getfequency((string)id);
OctetString community = new OctetString("public");
AgentParameters param = new AgentParameters(community);
param.Version = SnmpVersion.Ver1;
IpAddress agent = new IpAddress(ipaddr);
UdpTarget target = new UdpTarget((IPAddress)agent, 161, 2000, 1);
Pdu pdu = new Pdu(PduType.Get);
pdu.VbList.Add("1.3.6.1.2.1.43.11.1.1.9.1.1");
for (; ;)
{
if (canceltokensource.IsCancellationRequested == true)
{
Common.writetologfrm(string.Format("打印机 设备ID:{1} 线程{0}终止", Thread.CurrentThread.ManagedThreadId, id.ToString()));
target.Dispose();
this.Close();
break;//若收到cancellationToken消息则取消此线程
}
try
{
SnmpV1Packet result = (SnmpV1Packet)target.Request(pdu, param);
if (result != null)
{
if (result.Pdu.ErrorStatus != 0)
{
Common.writetologfrm(string.Format("打印机 ID:{0} 获取信息异常码{1}在{2}上", (string)id, result.Pdu.ErrorStatus, result.Pdu.ErrorIndex));
}
else
{
int i = Convert.ToInt32(result.Pdu.VbList[0].Value.ToString());
this.Invoke(new MethodInvoker(() => { show_data(id, i); }));
}
}
else
{
Common.writetologfrm(string.Format("打印机 ID:{0} 未收到回复", (string)id));
}
}
catch {
Common.writetologfrm(string.Format("打印机 ID:{0} 获取信息异常", (string)id));
}
Thread.Sleep(Common.getfequency((string)id));
}
//target.Dispose();
}//Printer线程工作内容
public void setSnmp(string oid, string host, int port, string value)
{
string hostIP;
int Port;
string Oid;
string Value;
Oid = oid;
hostIP = host;
Port = port;
Value = value;
//共同体类型
OctetString community = new OctetString("private");
AgentParameters param = new AgentParameters(community);
//设置snmp版本
param.Version = (int)SnmpVersion.Ver1;
IpAddress agent = new IpAddress(hostIP);
//构建目标
UdpTarget target = new UdpTarget((IPAddress)agent, port, 2000, 1);
Pdu pdu = new Pdu(PduType.Set);
pdu.VbList.Add(new SnmpSharpNet.Oid(Oid), new OctetString(Value));
//发送snmp请求
SnmpV1Packet result = (SnmpV1Packet)target.Request(pdu, param);
}
private string GetCounters(string ip, string query)
{
try
{
OctetString community = new OctetString("public");
AgentParameters param = new AgentParameters(community);
param.Version = SnmpVersion.Ver1;
IpAddress agent = new IpAddress(ip);
UdpTarget target = new UdpTarget((IPAddress)agent, 161, 3000, 1);
Pdu pdu = new Pdu(PduType.Get);
pdu.VbList.Add(query);
SnmpV1Packet result = (SnmpV1Packet)target.Request(pdu, param);
if (result != null)
{
return(result.Pdu.VbList[0].Value.ToString());
}
else
{
return("-");
}
}
catch
{
return("-");
}
}
/**
* Preparing informations for labeling.
*/
private string getBilling(AgentParameters param, UdpTarget target, string OID_Billing)
{
// Pdu class used for all requests
Pdu pdu = new Pdu(PduType.Get);
pdu.VbList.Add(OID_Billing);
// Make SNMP request
SnmpV1Packet result = (SnmpV1Packet)target.Request(pdu, param);
long value = 0;
try
{
value = long.Parse(result.Pdu.VbList[0].Value.ToString());
}
catch (OverflowException e)
{
Console.WriteLine(e.Message);
}
printer.setBilling(value.ToString("#,#", CultureInfo.InvariantCulture));
return(value.ToString("#,#", CultureInfo.InvariantCulture));
}
private void Snmp_Get(string ip, string oid, string comm)
{
OctetString community = new OctetString(comm);
AgentParameters param = new AgentParameters(community);
param.Version = SnmpVersion.Ver1;
IpAddress agent = new IpAddress(ip);
UdpTarget target = new UdpTarget((IPAddress)agent, 161, 2000, 1);
Pdu pdu = new Pdu(PduType.Get);
pdu.VbList.Add(oid);
SnmpV1Packet result = (SnmpV1Packet)target.Request(pdu, param);
if (result != null)
{
if (result.Pdu.ErrorStatus != 0)
{
this.txtTest.Text += string.Format("Error in SNMP reply. Error {0} index {1} \r\n", result.Pdu.ErrorStatus, result.Pdu.ErrorIndex);
}
else
{
int index = this.dataGridView1.Rows.Add();
this.dataGridView1.Rows[index].Cells[0].Value = "hello";
this.dataGridView1.Rows[index].Cells[1].Value = result.Pdu.VbList[0].Oid.ToString();
this.dataGridView1.Rows[index].Cells[2].Value = SnmpConstants.GetTypeName(result.Pdu.VbList[0].Value.Type);
this.dataGridView1.Rows[index].Cells[3].Value = result.Pdu.VbList[0].Value.ToString();
}
}
}
/// <summary>
/// Prints the packets
/// </summary>
/// <param name="result"></param>
public void PrintPacketRecv(SnmpV1Packet result)
{
// ErrorStatus other then 0 is an error returned by
// the Agent - see SnmpConstants for error definitions
if (result.Pdu.Type == PduType.Set)
{
PacketPrinterRcv.text = "Set ";
}
if (result.Pdu.Type == PduType.Get)
{
PacketPrinterRcv.text = "Get ";
}
if (result.Pdu.ErrorStatus != 0)
{
// agent reported an error with the request
PacketPrinterRcv.text = "Error: status " + result.Pdu.ErrorStatus + " Index " + result.Pdu.ErrorIndex;
}
else
{
// Reply variables are returned in the same order as they were added
// to the VbList
foreach (Vb VarBind in result.Pdu.VbList)
{
PacketPrinterRcv.text = "Request OID: " + VarBind.Oid.ToString() + " Type " + SnmpConstants.GetTypeName(VarBind.Value.Type) + " Value " + VarBind.Value.ToString();
}
}
}
public void ParseSnmResponse2()
{
var packetVersion = SnmpPacket.GetProtocolVersion(Packet2, Packet2.Length);
Assert.Equal(ESnmpVersion.Ver1, packetVersion);
var packet = new SnmpV1Packet();
packet.Decode(Packet2, Packet2.Length);
Assert.Equal("public", packet.Community.ToString());
Assert.False(packet.IsRequest);
Assert.True(packet.IsResponse);
Assert.Equal(38, packet.Pdu.RequestId);
Assert.Equal(EPduErrorStatus.NoError, packet.Pdu.ErrorStatus);
Assert.Equal(0, packet.Pdu.ErrorIndex);
Assert.Equal(1, packet.Pdu.VbCount);
var vb = packet.Pdu.GetVb(0);
Assert.NotNull(vb);
Assert.Equal(new Oid("1.3.6.1.2.1.1.2.0"), vb.Oid);
Assert.Equal((byte)(EAsnType.Constructor | EAsnType.Sequence), vb.Type);
Assert.Equal((byte)EAsnType.ObjectId, vb.Value.Type);
Assert.Equal(new Oid("1.3.6.1.4.1.2001.1.1.1.297.93.1.27.2.2.1"), vb.Value);
}
/*
* Fetching informations from Printer.
*/
private void setCheckerPrinter(AgentParameters param, UdpTarget target, string s)
{
try
{
// Pdu class used for all requests
Pdu pdu = new Pdu(PduType.Get);
pdu.VbList.Add(s);
// Make SNMP request
SnmpV1Packet result = (SnmpV1Packet)target.Request(pdu, param);
printer.uniquePrinterNumber = result.Pdu.VbList[0].Value.ToString();
printer.setBilling(getBilling(param, target, OID_Billing));
addMessagesToList(param, target);
printer.setStatus(getStatus(param, target, OID_Status));
//Console.WriteLine(getMessages(param, target, OID_Message5).Equals("Null"));
//printer.setMessage(getMessages(param,target,OID_Message1));
//Console.WriteLine(printer.getName() + " message: " + getMessages(param, target, OID_Message3));
}
catch (SnmpException e)
{
printer.setBilling("0");
Console.WriteLine(e.Message);
}
}
private SNMPJsonPacket sendRequest(string oid)
{
SnmpV1Packet packet = this.GetRequest((string)oid);
SNMPJsonPacket packetJson = new SNMPJsonPacket(packet.Pdu.VbList[0].Oid.ToString(), packet.Pdu.VbList[0].Value.ToString(), packet.Pdu.VbList[0].Type.ToString());
return(packetJson);
}
private void GetMore(int n)
{
OctetString community = new OctetString(txtConStr.Text);
AgentParameters param = new AgentParameters(community);
param.Version = SnmpVersion.Ver1;
try
{
IpAddress agent = new IpAddress(txtIPAgent.Text);
UdpTarget target = new UdpTarget((IPAddress)agent, 161, 2000, 1);
Pdu pdu = new Pdu(PduType.Get);
string[] row;
for (int i = 1; i <= n; i++)
{
pdu.VbList.Add("1.3.6.1.2.1.2.2.1.2." + i.ToString());
pdu.VbList.Add("1.3.6.1.2.1.2.2.1.3." + i.ToString());
pdu.VbList.Add("1.3.6.1.2.1.2.2.1.5." + i.ToString());
pdu.VbList.Add("1.3.6.1.2.1.2.2.1.10." + i.ToString());
pdu.VbList.Add("1.3.6.1.2.1.2.2.1.16." + i.ToString());
SnmpV1Packet result = (SnmpV1Packet)target.Request(pdu, param);
row = new string[] { i.ToString(), result.Pdu.VbList[0].Value.ToString(), GetType(int.Parse(result.Pdu.VbList[1].Value.ToString())), result.Pdu.VbList[2].Value.ToString(), result.Pdu.VbList[3].Value.ToString(), result.Pdu.VbList[4].Value.ToString() };
dgvList.Rows.Add(row);
pdu.Reset();
}
target.Close();
}
catch (Exception ex)
{
rtbGuiGet.Text = "Đã xảy ra lỗi: " + ex.Message.ToString();
}
}
public void ParseSnmpGet1()
{
var packetVersion = SnmpPacket.GetProtocolVersion(Packet1, Packet1.Length);
Assert.Equal(ESnmpVersion.Ver1, packetVersion);
var packet = new SnmpV1Packet();
packet.Decode(Packet1, Packet1.Length);
Assert.Equal("public", packet.Community.ToString());
Assert.True(packet.IsRequest);
Assert.False(packet.IsResponse);
Assert.Equal(38, packet.Pdu.RequestId);
Assert.Equal(EPduErrorStatus.NoError, packet.Pdu.ErrorStatus);
Assert.Equal(0, packet.Pdu.ErrorIndex);
Assert.Equal(1, packet.Pdu.VbCount);
var vb = packet.Pdu.GetVb(0);
Assert.NotNull(vb);
Assert.Equal(new Oid("1.3.6.1.2.1.1.2.0"), vb.Oid);
}
public void ParseSnmpGet7()
{
var packetVersion = SnmpPacket.GetProtocolVersion(Packet7, Packet7.Length);
Assert.Equal(ESnmpVersion.Ver1, packetVersion);
var packet = new SnmpV1Packet();
packet.Decode(Packet7, Packet7.Length);
Assert.Equal("public", packet.Community.ToString());
Assert.True(packet.IsRequest);
Assert.False(packet.IsResponse);
Assert.Equal(41, packet.Pdu.RequestId);
Assert.Equal(EPduErrorStatus.NoError, packet.Pdu.ErrorStatus);
Assert.Equal(0, packet.Pdu.ErrorIndex);
Assert.Equal(3, packet.Pdu.VbCount);
var vb = packet.Pdu.GetVb(0);
Assert.NotNull(vb);
Assert.Equal(new Oid("1.3.6.1.4.1.253.8.64.4.2.1.7.10.14130104"), vb.Oid);
vb = packet.Pdu.GetVb(1);
Assert.NotNull(vb);
Assert.Equal(new Oid("1.3.6.1.4.1.253.8.64.4.2.1.7.10.14130102"), vb.Oid);
vb = packet.Pdu.GetVb(2);
Assert.NotNull(vb);
Assert.Equal(new Oid("1.3.6.1.4.1.253.8.64.4.2.1.5.10.14130400"), vb.Oid);
}
public static string getRequestProxy(string content)
{
string result = "";
content = content.Remove(content.Length - 1);
SnmpV1Packet packet = Instance.GetRequest(content);
return(packet.Pdu.VbList[0].Value.ToString());
}
public void monitorObject(object OID)
{
while (monitor)
{
SnmpV1Packet packet = this.GetRequest((string)OID);
this.windowHandler.addMonitorRow(packet.Pdu.VbList[0].Oid.ToString(), packet.Pdu.VbList[0].Value.ToString(), packet.Pdu.VbList[0].Type.ToString(), this.ipPort);
Thread.Sleep(5000);
}
}
public SnmpV1Packet GetMonitorRequest(string OID)
{
this.param.Version = SnmpVersion.Ver1;
Pdu pduM = new Pdu(PduType.Get);
pduM.VbList.Add(OID);
SnmpV1Packet resultM = (SnmpV1Packet)target.Request(pduM, param);
return(resultM);
}
//多執行緒檢察linux
private void CheckLinuxDiskThread(object obj)
{
//0 = TargetName, 1= TargetIP ,2=TargetAlert ,3=TargetSpaceLog ,4=id ,5=TargetWarning
string[] Askitem = new string[6];
Askitem = (string[])obj;
try
{
// SNMP community name
OctetString community = new OctetString("public");
AgentParameters param = new AgentParameters(community);
param.Version = SnmpVersion.Ver1;
IpAddress agent = new IpAddress(Askitem[1]);//TargetIP
// Construct target
UdpTarget target = new UdpTarget((IPAddress)agent, 161, 2000, 1);
// Pdu class used for all requests
Pdu pdu = new Pdu(PduType.Get);
pdu.VbList.Add(".1.3.6.1.4.1.2021.9.1.2.1"); //代號
pdu.VbList.Add(".1.3.6.1.4.1.2021.9.1.6.1"); //總空間
pdu.VbList.Add(".1.3.6.1.4.1.2021.9.1.8.1"); //已用空間
// Make SNMP request
SnmpV1Packet result = (SnmpV1Packet)target.Request(pdu, param);
//取得 總空間kb 已用空間kb 分割區帶號
int AllKB = int.Parse(result.Pdu.VbList[1].Value.ToString());
int UseKB = int.Parse(result.Pdu.VbList[2].Value.ToString());
int FreeKB = AllKB - UseKB;
int AllMB = AllKB / 1024;
int FreeMB = FreeKB / 1024;
int AllGB = AllMB / 1024;
int FreeGB = FreeMB / 1024;
string ID = result.Pdu.VbList[0].Value.ToString();
//委派傳出
string[] text = new string[10];
text[0] = Askitem[0]; //名稱
text[1] = ID; //代號
text[2] = AllMB.ToString(); //總空間mb
text[3] = AllGB.ToString(); //總空間gb
text[4] = FreeMB.ToString(); //剩餘mb
text[5] = FreeGB.ToString(); //剩餘gb
text[6] = Askitem[2]; //警戒值
text[7] = "Linux"; //檢察linux
text[8] = Askitem[4]; //WindowsTargetID
text[9] = Askitem[5]; //TargetWaning
this.Invoke(new D_AddAlreadyGridView(AddAlreadyGridView), new object[] { text });
//如果低於警戒值
if (FreeMB <= Convert.ToInt32(Askitem[2]))
{
this.Invoke(new D_AddAlertGridView(AddAlertGridView), new object[] { text });
}
}
catch (Exception x)
{
this.Invoke(new D_AddErrorList(AddErrorList), Askitem[0] + " >>> " + x.Message.ToString());
}
this.Invoke(new D_AddProgress(AddProgress), null);
}
public string GetHersteller()
{
// SNMP community name
OctetString community = new OctetString("public");
// Define agent parameters class
AgentParameters param = new AgentParameters(community);
// Set SNMP version to 1 (or 2)
param.Version = SnmpVersion.Ver1;
// Construct the agent address object
// IpAddress class is easy to use here because
// it will try to resolve constructor parameter if it doesn't
// parse to an IP address
IpAddress agent = new IpAddress(Ip);
// Construct target
UdpTarget target = new UdpTarget((IPAddress)agent, 161, 250, 1);
// Pdu class used for all requests
Pdu pdu = new Pdu(PduType.Get);
pdu.VbList.Add(".1.3.6.1.2.1.25.3.2.1.3.1"); //sysDescr
// Make SNMP request
try
{
SnmpV1Packet result = (SnmpV1Packet)target.Request(pdu, param);
// If result is null then agent didn't reply or we couldn't parse the reply.
if (result != null)
{
// ErrorStatus other then 0 is an error returned by
// the Agent - see SnmpConstants for error definitions
if (result.Pdu.ErrorStatus != 0)
{
// agent reported an error with the request
return("Error in SNMP reply.");
}
else
{
// Reply variables are returned in the same order as they were added
// to the VbList
target.Close();
return(result.Pdu.VbList[0].Value.ToString());
}
}
else
{
target.Close();
return("No response received from SNMP agent.");
}
}
catch { target.Close(); return("Fehler"); }
}
private string getMessages(AgentParameters param, UdpTarget target, string OID_Message)
{
// Pdu class used for all requests
Pdu pdu = new Pdu(PduType.Get);
pdu.VbList.Add(OID_Message);
// Make SNMP request
SnmpV1Packet result = (SnmpV1Packet)target.Request(pdu, param);
string value = result.Pdu.VbList[0].Value.ToString();
return(value.ToString());
}
public SnmpV1Packet GetNextRequest(string OID)
{
this.param.Version = SnmpVersion.Ver1;
this.pdu = new Pdu(PduType.GetNext);
this.pdu.VbList.Add(OID);
result = (SnmpV1Packet)target.Request(pdu, param);
OidNumber = result.Pdu.VbList[0].Oid.ToString();
type = SnmpConstants.GetTypeName(result.Pdu.VbList[0].Value.Type);
value = result.Pdu.VbList[0].Value.ToString();
ipPort = address + ":161";
return(result);
}
public SNMPResultSet Get(string pOID)
{
SNMPResultSet snmpResult = null;
// Define agent parameters class
AgentParameters param = new AgentParameters(new OctetString(CommunityName));
// Set SNMP version to 1 (or 2)
param.Version = SnmpVersion.Ver1;
// Construct target
UdpTarget target = new UdpTarget((IPAddress)AgentIP, 161, 2000, 1);
// Pdu class used for all requests
Pdu pdu = new Pdu(PduType.Get);
pdu.VbList.Add(pOID);
// Make SNMP request
SnmpV1Packet result = (SnmpV1Packet)target.Request(pdu, param);
// If result is null then agent didn't reply or we couldn't parse the reply.
if (result != null)
{
// ErrorStatus other then 0 is an error returned by
// the Agent - see SnmpConstants for error definitions
if (result.Pdu.ErrorStatus != 0)
{
// agent reported an error with the request
Console.WriteLine("Error in SNMP reply. Error {0} index {1}",
result.Pdu.ErrorStatus,
result.Pdu.ErrorIndex);
}
else
{
// Reply variables are returned in the same order as they were added
// to the VbList
snmpResult = new SNMPResultSet(result.Pdu.VbList[0].Oid.ToString(), SnmpConstants.GetTypeName(result.Pdu.VbList[0].Value.Type), result.Pdu.VbList[0].Value.ToString());
}
}
else
{
Console.WriteLine("No response received from SNMP agent.");
}
target.Close();
return(snmpResult);
}
private void Get(int n)
{
OctetString community = new OctetString(txtConStr.Text);
AgentParameters param = new AgentParameters(community);
param.Version = SnmpVersion.Ver1;
try
{
IpAddress agent = new IpAddress(txtIPAgent.Text);
UdpTarget target = new UdpTarget((IPAddress)agent, 161, 2000, 1);
Pdu pdu = new Pdu(PduType.Get);
pdu.VbList.Add("1.3.6.1.2.1.1.1." + n.ToString()); //sysDescr
pdu.VbList.Add("1.3.6.1.2.1.1.2." + n.ToString()); //sysObjectID
pdu.VbList.Add("1.3.6.1.2.1.1.3." + n.ToString()); //sysUpTime
pdu.VbList.Add("1.3.6.1.2.1.1.4." + n.ToString()); //sysContact
pdu.VbList.Add("1.3.6.1.2.1.1.5." + n.ToString()); //sysName
pdu.VbList.Add("1.3.6.1.2.1.2.1." + n.ToString()); //ifNumbber
SnmpV1Packet result = (SnmpV1Packet)target.Request(pdu, param);
if (result != null)
{
if (result.Pdu.ErrorStatus != 0)
{
rtbGuiGet.Text = "Error in SNMP reply. Error " + result.Pdu.ErrorStatus + " index " + result.Pdu.ErrorIndex;
}
else
{
rtbGuiGet.Text = "sysDescr(" + result.Pdu.VbList[0].Oid.ToString() + ") (" + SnmpConstants.GetTypeName(result.Pdu.VbList[0].Value.Type) + "): " + result.Pdu.VbList[0].Value.ToString();
rtbGuiGet.Text = rtbGuiGet.Text + "\n" + "sysObjectID(" + result.Pdu.VbList[1].Oid.ToString() + ") (" + SnmpConstants.GetTypeName(result.Pdu.VbList[1].Value.Type) + "): " + result.Pdu.VbList[1].Value.ToString();
rtbGuiGet.Text = rtbGuiGet.Text + "\n" + "sysUpTime(" + result.Pdu.VbList[2].Oid.ToString() + ") (" + SnmpConstants.GetTypeName(result.Pdu.VbList[2].Value.Type) + "): " + result.Pdu.VbList[2].Value.ToString();
rtbGuiGet.Text = rtbGuiGet.Text + "\n" + "sysContact(" + result.Pdu.VbList[3].Oid.ToString() + ") (" + SnmpConstants.GetTypeName(result.Pdu.VbList[3].Value.Type) + "): " + result.Pdu.VbList[3].Value.ToString();
rtbGuiGet.Text = rtbGuiGet.Text + "\n" + "sysName(" + result.Pdu.VbList[4].Oid.ToString() + ") (" + SnmpConstants.GetTypeName(result.Pdu.VbList[4].Value.Type) + "): " + result.Pdu.VbList[4].Value.ToString();
rtbGuiGet.Text = rtbGuiGet.Text + "\n" + "ifNumber(" + result.Pdu.VbList[5].Oid.ToString() + ") (" + SnmpConstants.GetTypeName(result.Pdu.VbList[5].Value.Type) + "): " + result.Pdu.VbList[5].Value.ToString();
GetMore(int.Parse(result.Pdu.VbList[5].Value.ToString()));
}
}
else
{
rtbGuiGet.Text = "No response received from SNMP agent.";
}
target.Close();
}
catch (Exception ex)
{
rtbGuiGet.Text = "Đã xảy ra lỗi: " + ex.Message.ToString();
}
}
private void btnSet_Click(object sender, EventArgs e)
{
IpAddress agent = new IpAddress(this.IP);
UdpTarget target = new UdpTarget((IPAddress)agent, 162, 2000, 1);
Pdu pdu = new Pdu(PduType.Set);
//pdu.VbList.Add(this.OID, new Integer32());
OctetString community = new OctetString(this.comm);
AgentParameters param = new AgentParameters(community);
param.Version = SnmpVersion.Ver1;
SnmpV1Packet result = (SnmpV1Packet)target.Request(pdu, param);
}
private int getStatus(AgentParameters param, UdpTarget target, string OID_Status)
{
// Pdu class used for all requests
Pdu pdu = new Pdu(PduType.Get);
pdu.VbList.Add(OID_Status);
// Make SNMP request
SnmpV1Packet result = (SnmpV1Packet)target.Request(pdu, param);
string value = result.Pdu.VbList[0].Value.ToString();
try
{
return(Int32.Parse(value));
}
catch (FormatException e)
{
throw new FormatException(e.Message);
}
}
public void ParseSnmpResponse8()
{
var packetVersion = SnmpPacket.GetProtocolVersion(Packet8, Packet8.Length);
Assert.Equal(ESnmpVersion.Ver1, packetVersion);
var packet = new SnmpV1Packet();
packet.Decode(Packet8, Packet8.Length);
Assert.Equal("public", packet.Community.ToString());
Assert.False(packet.IsRequest);
Assert.True(packet.IsResponse);
Assert.Equal(41, packet.Pdu.RequestId);
Assert.Equal(EPduErrorStatus.NoError, packet.Pdu.ErrorStatus);
Assert.Equal(0, packet.Pdu.ErrorIndex);
Assert.Equal(3, packet.Pdu.VbCount);
var vb = packet.Pdu.GetVb(0);
Assert.NotNull(vb);
Assert.Equal(new Oid("1.3.6.1.4.1.253.8.64.4.2.1.7.10.14130104"), vb.Oid);
Assert.Equal((byte)EAsnType.OctetString, vb.Value.Type);
Assert.Equal(new byte[] { 0x31, 0x37, 0x32, 0x2e, 0x33, 0x31, 0x2e, 0x31, 0x39, 0x2e, 0x32 }, vb.Value as OctetString);
vb = packet.Pdu.GetVb(1);
Assert.NotNull(vb);
Assert.Equal(new Oid("1.3.6.1.4.1.253.8.64.4.2.1.7.10.14130102"), vb.Oid);
Assert.Equal((byte)EAsnType.OctetString, vb.Value.Type);
Assert.Equal(new byte[] { 0x32, 0x35, 0x35, 0x2e, 0x32, 0x35, 0x35, 0x2e, 0x32, 0x35, 0x35, 0x2e, 0x30 }, vb.Value as OctetString);
vb = packet.Pdu.GetVb(2);
Assert.NotNull(vb);
Assert.Equal(new Oid("1.3.6.1.4.1.253.8.64.4.2.1.5.10.14130400"), vb.Oid);
Assert.Equal((byte)EAsnType.Integer, vb.Value.Type);
Assert.Equal(1, vb.Value as Integer32);
}
static void Main(string[] args)
{
// SNMP community name
OctetString community = new OctetString("public");
// Define agent parameters class
AgentParameters param = new AgentParameters(community);
// Set SNMP version to 1 (or 2)
param.Version = SnmpVersion.Ver1;
// Construct the agent address object
//IpAddress agent = new IpAddress("127.0.0.1"); //Taylor: Change the 127.0.0.1 to the IP address of your own controller's
IpAddress agent = new IpAddress("192.168.2.109"); //Taylor: Change the 127.0.0.1 to the IP address of your own controller's
// Construct target
UdpTarget target = new UdpTarget((IPAddress)agent, 501, 2000, 0); //Taylor: 503 should be the same NTCIP port in your controller's network setting. You may change to other port numbers (but be consistent with your controller) Other numbers do not matter
// Pdu class used for all relevant requests
Pdu pdu1 = new Pdu(PduType.Get);
Pdu pdu2 = new Pdu(PduType.Get);
Pdu pdu3 = new Pdu(PduType.Get);
Pdu pdu4 = new Pdu(PduType.Get);
Pdu pdu5 = new Pdu(PduType.Get);
Pdu pdu6 = new Pdu(PduType.Get);
Pdu pdu7 = new Pdu(PduType.Get);
Pdu pdu8 = new Pdu(PduType.Get);
Pdu pdu9 = new Pdu(PduType.Get);
Pdu pdu10 = new Pdu(PduType.Get);
Pdu pdu11 = new Pdu(PduType.Get);
Pdu pdu12 = new Pdu(PduType.Get);
Pdu pdu13 = new Pdu(PduType.Get);
Pdu pdu14 = new Pdu(PduType.Get);
Pdu pdu15 = new Pdu(PduType.Get);
Pdu pdu16 = new Pdu(PduType.Get);
//pdu class for set //taylor: add in May 2019
Pdu pdu17 = new Pdu(PduType.Set);
Pdu pdu18 = new Pdu(PduType.Set);
Pdu pdu19 = new Pdu(PduType.Set);
Pdu pdu20 = new Pdu(PduType.Set);
Pdu pdu21 = new Pdu(PduType.Set);
Pdu pdu22 = new Pdu(PduType.Set);
pdu1.VbList.Add("1.3.6.1.4.1.1206.4.2.1.1.4.1.4.1"); //Taylor: green status of Phase 1-8;it will be a decimal integer. you need to convert it a 9-bit binary. for each bit, 1 is current green 0 is not green
pdu2.VbList.Add("1.3.6.1.4.1.1206.4.2.1.1.4.1.4.2"); //Taylor: Phase 9-16; if not activated, then the returned value is zero
pdu3.VbList.Add("1.3.6.1.4.1.1206.4.2.1.1.4.1.3.1"); //Taylor: yellow status of Phase 1-8; convert the returned decimal integer to binary. if a bit is 1, then currently that phase is yellow. otherwise is not yellow
pdu4.VbList.Add("1.3.6.1.4.1.1206.4.2.1.1.4.1.3.2"); //Taylor: yellow phase 9-16; if the phase is no activated, then return value is zero
//Taylor: no need to poll red since if neither green nor yellow, then it's red
/////////////////////Ped phase status
pdu5.VbList.Add("1.3.6.1.4.1.1206.4.2.1.1.4.1.7.1"); //Taylor: walk status of Ped Phase 1-8; convert the returned decimal integer to binary. if a bit is 1, then currently that phase is yellow. otherwise is not yellow
pdu6.VbList.Add("1.3.6.1.4.1.1206.4.2.1.1.4.1.7.2"); //Taylor: walk status of Ped Phase 9-16; convert the returned decimal integer to binary. if a bit is 1, then currently that phase is yellow. otherwise is not yellow
pdu7.VbList.Add("1.3.6.1.4.1.1206.4.2.1.1.4.1.6.1"); //Taylor: ped clearance status of Ped Phase 1-8; convert the returned decimal integer to binary. if a bit is 1, then currently that phase is yellow. otherwise is not yellow
pdu8.VbList.Add("1.3.6.1.4.1.1206.4.2.1.1.4.1.6.2"); //Taylor: ped clearance of Ped Phase 9-16; convert the returned decimal integer to binary. if a bit is 1, then currently that phase is yellow. otherwise is not yellow
//if a ped phase is neither walk nor ped clearance. then it's solid "don't walk"
//Poll dets status
pdu9.VbList.Add("1.3.6.1.4.1.1206.4.2.1.2.4.1.2.1"); //Taylor: det status of channel 1-8; returned a decimal integer. converted to a binary first
pdu10.VbList.Add("1.3.6.1.4.1.1206.4.2.1.2.4.1.2.2"); //Taylor: det status of channel 9-16; returned a decimal integer. converted to a binary first
pdu11.VbList.Add("1.3.6.1.4.1.1206.4.2.1.2.4.1.2.3"); //Taylor: det status of channel 17-24; returned a decimal integer. converted to a binary first
pdu12.VbList.Add("1.3.6.1.4.1.1206.4.2.1.2.4.1.2.4"); //Taylor: det status of channel 25-32; returned a decimal integer. converted to a binary first
pdu13.VbList.Add("1.3.6.1.4.1.1206.4.2.1.2.4.1.2.5"); //Taylor: det status of channel 33-40; returned a decimal integer. converted to a binary first
pdu14.VbList.Add("1.3.6.1.4.1.1206.4.2.1.2.4.1.2.6"); //Taylor: det status of channel 41-48; returned a decimal integer. converted to a binary first
pdu15.VbList.Add("1.3.6.1.4.1.1206.4.2.1.2.4.1.2.7"); //Taylor: det status of channel 49-56; returned a decimal integer. converted to a binary first
pdu16.VbList.Add("1.3.6.1.4.1.1206.4.2.1.2.4.1.2.8"); //Taylor: det status of channel 57-64; returned a decimal integer. converted to a binary first
//Phase controls //
pdu17.VbList.Add(new Oid("1.3.6.1.4.1.1206.4.2.1.1.5.1.2.1"), new Integer32(255)); //Taylor: phase 1~8 omit (if binary, from right to left: phase 1-8, but you will need to input the corresponding decimal). e.g., if you wish to omit 3 and 7. the binary value will be 01000100 and the decimal value is 68. replace the last digit in the 1.3.6.xxxx.2.1 with 2 if you wish to omit 9~16
pdu18.VbList.Add(new Oid("1.3.6.1.4.1.1206.4.2.1.1.5.1.3.1"), new Integer32(68)); //Taylor: Ped 1-8 omits
pdu19.VbList.Add(new Oid("1.3.6.1.4.1.1206.4.2.1.1.5.1.4.1"), new Integer32(68)); //Taylor: Phase 1-8 hold . 1.3....4."1". can be relaced with 2 for phase 9~16
pdu20.VbList.Add(new Oid("1.3.6.1.4.1.1206.4.2.1.1.5.1.5.1"), new Integer32(68)); //taylor place or lift phase 1-8 force-off (if you wish to force phase 1 and 5, the binary will be 00010001 and the decmial is 17
pdu21.VbList.Add(new Oid("1.3.6.1.4.1.1206.4.2.1.1.5.1.6.1"), new Integer32(68)); //Taylor: place (1) or lift (0)phase 1-8 vehicle call
pdu21.VbList.Add(new Oid("1.3.6.1.4.1.1206.4.2.1.1.5.1.7.1"), new Integer32(68)); //Taylor: place or lift ped call
// Taylor: Just use the green 1-8 and yellow 1-8 and det 1-8 as illustration. Please extend to others PDU as defined above if needed
SnmpV1Packet result1 = (SnmpV1Packet)target.Request(pdu1, param);
// green status of phase 1-8
if (result1 != null)
{
// ErrorStatus other then 0 is an error returned by
// the Agent - see SnmpConstants for error definitions
if (result1.Pdu.ErrorStatus != 0)
{
// agent reported an error with the request
Console.WriteLine("Error in SNMP reply. Error {0} index {1}",
result1.Pdu.ErrorStatus,
result1.Pdu.ErrorIndex);
}
else
{
// Reply variables are returned in the same order as they were added
// to the VbList
String green1to8 = result1.Pdu.VbList[0].Value.ToString();//Taylor: Using https://www.mathsisfun.com/binary-decimal-hexadecimal-converter.html to convert decimal to binary (from right to left, phase 1 to 8). You may need a function to do this in the code
}
}
// yellow status of phase 1-8
SnmpV1Packet result3 = (SnmpV1Packet)target.Request(pdu3, param);
if (result3 != null)
{
// ErrorStatus other then 0 is an error returned by
// the Agent - see SnmpConstants for error definitions
if (result3.Pdu.ErrorStatus != 0)
{
// agent reported an error with the request
Console.WriteLine("Error in SNMP reply. Error {0} index {1}",
result3.Pdu.ErrorStatus,
result3.Pdu.ErrorIndex);
}
else
{
// Reply variables are returned in the same order as they were added
// to the VbList
String yellow1to8 = result3.Pdu.VbList[0].Value.ToString();
}
}
// Status of det 1-8
SnmpV1Packet result9 = (SnmpV1Packet)target.Request(pdu9, param);
if (result9 != null)
{
// ErrorStatus other then 0 is an error returned by
// the Agent - see SnmpConstants for error definitions
if (result9.Pdu.ErrorStatus != 0)
{
// agent reported an error with the request
Console.WriteLine("Error in SNMP reply. Error {0} index {1}",
result9.Pdu.ErrorStatus,
result9.Pdu.ErrorIndex);
}
else
{
// Reply variables are returned in the same order as they were added
// to the VbList
String det1to8 = result9.Pdu.VbList[0].Value.ToString();
}
}
else
{
Console.WriteLine("No response received from SNMP agent.");
}
//Set (write) example: phase 1-8 omit
//SnmpV1Packet result17 = (SnmpV1Packet)target.Request(pdu17, param);
SnmpV1Packet result17 = target.Request(pdu17, param) as SnmpV1Packet;// Taylor: I set the omit value 255 (1111111). it means all 8 phases are omit and you should be able to see this status on your front panel
// ^ (from left to right means the status of phase 8, 7,...,2,1)
//If you wish to
if (result17 != null)
{
// ErrorStatus other then 0 is an error returned by
// the Agent - see SnmpConstants for error definitions
if (result17.Pdu.ErrorStatus != 0)
{
// agent reported an error with the request
Console.WriteLine("Error in SNMP reply. Error {0} index {1}", result17.Pdu.ErrorStatus, result17.Pdu.ErrorIndex);
}
else
{
// Reply variables are returned in the same order as they were added
// to the VbList
String phaseomit1to8 = result17.Pdu.VbList[0].Value.ToString();
}
}
else
{
Console.WriteLine("No response received from SNMP agent.");
}
target.Close();
}
public void GetInfoOID(DataTable dtInterfaceGauge, out DataTable dt)
{
dt = dtInterfaceGauge.Copy();
if (dtInterfaceGauge.Rows.Count > 0)
{
// SNMP community name
OctetString community = new OctetString(_community);
// Define agent parameters class
AgentParameters param = new AgentParameters(community);
// Set SNMP version to 1 (or 2)
param.Version = SnmpVersion.Ver1;
// Construct the agent address object
// IpAddress class is easy to use here because
// it will try to resolve constructor parameter if it doesn't
// parse to an IP address
IpAddress agent = new IpAddress(_ipHost);
// Construct target
UdpTarget target = new UdpTarget((IPAddress)agent, 161, 2000, 1);
// Pdu class used for all requests
Pdu pdu = new Pdu(PduType.Get);
for (int i = 0; i < dtInterfaceGauge.Rows.Count; i++)
{
pdu.VbList.Add(dtInterfaceGauge.Rows[i]["OIDIn"].ToString());
pdu.VbList.Add(dtInterfaceGauge.Rows[i]["OIDOut"].ToString());
}
// Make SNMP request
SnmpV1Packet result = (SnmpV1Packet)target.Request(pdu, param);
// If result is null then agent didn't reply or we couldn't parse the reply.
if (result != null)
{
// ErrorStatus other then 0 is an error returned by
// the Agent - see SnmpConstants for error definitions
if (result.Pdu.ErrorStatus != 0)
{
// agent reported an error with the request
Console.WriteLine("Error in SNMP reply. Error {0} index {1}",
result.Pdu.ErrorStatus,
result.Pdu.ErrorIndex);
}
else
{
// Reply variables are returned in the same order as they were added
// to the VbList
// MessageBox.Show(result.Pdu.VbList[0].Oid.ToString() + " (" + SnmpConstants.GetTypeName(result.Pdu.VbList[0].Value.Type) + ") " + result.Pdu.VbList[0].Value.ToString());
for (int i = 0; i < dtInterfaceGauge.Rows.Count; i++)
{
dtInterfaceGauge.Rows[i]["InBandwidth"] = result.Pdu.VbList[i + i].Value.ToString();
dtInterfaceGauge.Rows[i]["OutBandwidth"] = result.Pdu.VbList[i + i + 1].Value.ToString();
}
dt = dtInterfaceGauge;
}
}
else
{
Console.WriteLine("No response received from SNMP agent.");
}
target.Close();
}
}
private void GetDisk()
{
OctetString community = new OctetString(txtConStr.Text);
AgentParameters param = new AgentParameters(community);
param.Version = SnmpVersion.Ver1;
try
{
IpAddress agent = new IpAddress(txtIPAgent.Text);
UdpTarget target = new UdpTarget((IPAddress)agent, 161, 2000, 1);
Pdu pdu = new Pdu(PduType.Get);
pdu.VbList.Add("1.3.6.1.2.1.1.1.0"); //sysDescr
pdu.VbList.Add("1.3.6.1.2.1.1.2.0"); //sysObjectID
pdu.VbList.Add("1.3.6.1.2.1.1.3.0"); //sysUpTime
pdu.VbList.Add("1.3.6.1.2.1.1.4.0"); //sysContact
pdu.VbList.Add("1.3.6.1.2.1.1.5.0"); //sysName
pdu.VbList.Add("1.3.6.1.2.1.25.1.2.0"); //hrSystemDate
pdu.VbList.Add("1.3.6.1.2.1.25.1.5.0"); //hrSystemNumUsers
pdu.VbList.Add("1.3.6.1.2.1.25.1.6.0"); //hrSystemProcesses
pdu.VbList.Add("1.3.6.1.2.1.25.2.2.0"); //hrMemorySize
//pdu.VbList.Add("1.3.6.1.2.1.1.5." + n.ToString()); //sysName
//pdu.VbList.Add("1.3.6.1.2.1.2.1." + n.ToString()); //ifNumbber
SnmpV1Packet result = (SnmpV1Packet)target.Request(pdu, param);
if (result != null)
{
if (result.Pdu.ErrorStatus != 0)
{
rtbGuiGet.Text = "Error in SNMP reply. Error " + result.Pdu.ErrorStatus + " index " + result.Pdu.ErrorIndex;
}
else
{
// Reply variables are returned in the same order as they were added
// to the VbList
////////////////////////////////////
//rtbAddInfo.Text = "hrSystemDate(" + result.Pdu.VbList[0].Oid.ToString() + ") (" + SnmpConstants.GetTypeName(result.Pdu.VbList[0].Value.Type) + "):\n\t" + result.Pdu.VbList[0].Value.ToString();
//rtbAddInfo.Text += "\n\t-------------------\n\t-------------------\n" + "hrSystemNumUsers(" + result.Pdu.VbList[1].Oid.ToString() + ") (" + SnmpConstants.GetTypeName(result.Pdu.VbList[1].Value.Type) + "): " + result.Pdu.VbList[1].Value.ToString();
//rtbAddInfo.Text += "\n\t-------------------\n" + "hrSystemProcesses(" + result.Pdu.VbList[2].Oid.ToString() + ") (" + SnmpConstants.GetTypeName(result.Pdu.VbList[2].Value.Type) + "): " + result.Pdu.VbList[2].Value.ToString();
rtbAddInfo.Text += "" + "hrMemorySize(" + result.Pdu.VbList[3].Oid.ToString() + ") (" + SnmpConstants.GetTypeName(result.Pdu.VbList[3].Value.Type) + "): " + result.Pdu.VbList[3].Value.ToString();
for (int i = 1; i < 10; i++)
{
pdu.Reset();
pdu.VbList.Add("1.3.6.1.2.1.25.2.3.1.3." + i.ToString());
try
{
result = (SnmpV1Packet)target.Request(pdu, param);
if (result.Pdu.VbList[0].Value.ToString() != "Null")
{
rtbAddInfo.Text += "\n\t" + "hrStorageDescr." + i.ToString() + "(" + result.Pdu.VbList[0].Oid.ToString() + ") (" + SnmpConstants.GetTypeName(result.Pdu.VbList[0].Value.Type) + "): " + result.Pdu.VbList[0].Value.ToString();
}
}
catch (Exception)
{ }
}
}
}
else
{
rtbAddInfo.Text = "No response received from SNMP agent.";
}
target.Close();
}
catch (Exception ex)
{
rtbGuiGet.Text = "Đã xảy ra lỗi: " + ex.Message.ToString();
}
}
private void GetOne(int n, RichTextBox rtb)
{
n++;
// SNMP community name
OctetString community = new OctetString(txtConStr.Text);
// Define agent parameters class
AgentParameters param = new AgentParameters(community);
// Set SNMP version to 1 (or 2)
param.Version = SnmpVersion.Ver1;
// Construct the agent address object
// IpAddress class is easy to use here because
// it will try to resolve constructor parameter if it doesn't
// parse to an IP address
try
{
IpAddress agent = new IpAddress(txtIPAgent.Text);
// Construct target
UdpTarget target = new UdpTarget((IPAddress)agent, 161, 2000, 1);
// Pdu class used for all requests
Pdu pdu = new Pdu(PduType.Get);
pdu.VbList.Add("1.3.6.1.2.1.2.2.1.2." + n.ToString()); //ifDescr
pdu.VbList.Add("1.3.6.1.2.1.2.2.1.3." + n.ToString()); //ifType
pdu.VbList.Add("1.3.6.1.2.1.2.2.1.5." + n.ToString()); //ifSpeed
pdu.VbList.Add("1.3.6.1.2.1.2.2.1.6." + n.ToString()); //ifPhysAddress
pdu.VbList.Add("1.3.6.1.2.1.2.2.1.7." + n.ToString()); //ifAdminStatus
pdu.VbList.Add("1.3.6.1.2.1.2.2.1.8." + n.ToString()); //ifOperStatus
// Make SNMP request
SnmpV1Packet result = (SnmpV1Packet)target.Request(pdu, param);
// If result is null then agent didn't reply or we couldn't parse the reply.
if (result != null)
{
// ErrorStatus other then 0 is an error returned by
// the Agent - see SnmpConstants for error definitions
if (result.Pdu.ErrorStatus != 0)
{
// agent reported an error with the request
rtb.Text = "Error in SNMP reply. Error " + result.Pdu.ErrorStatus + " index " + result.Pdu.ErrorIndex;
}
else
{
// Reply variables are returned in the same order as they were added to the VbList
rtb.Text = "ifDescr(" + result.Pdu.VbList[0].Oid.ToString() + ") (" + SnmpConstants.GetTypeName(result.Pdu.VbList[0].Value.Type) + "): " + "\n\t" + result.Pdu.VbList[0].Value.ToString();
rtb.Text = rtb.Text + "\n" + "ifType(" + result.Pdu.VbList[1].Oid.ToString() + ") (" + SnmpConstants.GetTypeName(result.Pdu.VbList[1].Value.Type) + "): " + "\n\t" + GetType(int.Parse(result.Pdu.VbList[1].Value.ToString()));
rtb.Text = rtb.Text + "\n" + "ifSpeed(" + result.Pdu.VbList[2].Oid.ToString() + ") (" + SnmpConstants.GetTypeName(result.Pdu.VbList[2].Value.Type) + "): " + "\n\t" + result.Pdu.VbList[2].Value.ToString();
rtb.Text = rtb.Text + "\n" + "ifPhysAddress(" + result.Pdu.VbList[3].Oid.ToString() + ") (" + SnmpConstants.GetTypeName(result.Pdu.VbList[3].Value.Type) + "): " + "\n\t" + result.Pdu.VbList[3].Value.ToString();
rtb.Text = rtb.Text + "\n" + "ifAdminStatus(" + result.Pdu.VbList[4].Oid.ToString() + ") (" + SnmpConstants.GetTypeName(result.Pdu.VbList[4].Value.Type) + "): " + "\n\t" + GetStatus(int.Parse(result.Pdu.VbList[4].Value.ToString()));
rtb.Text = rtb.Text + "\n" + "ifOperStatus(" + result.Pdu.VbList[5].Oid.ToString() + ") (" + SnmpConstants.GetTypeName(result.Pdu.VbList[5].Value.Type) + "): " + "\n\t" + GetStatus(int.Parse(result.Pdu.VbList[5].Value.ToString()));
}
}
else
{
rtb.Text = "No response received from SNMP agent.";
}
target.Close();
}
catch (Exception ex)
{
rtb.Text = "Đã xảy ra lỗi: " + ex.Message.ToString();
}
}
// Method broadcast references the IPEndPoint class -
// IPEndPoint contains host and local or remote port information needed by an application to connect to a service on a host.
// It does this by combining the host's IP address and port number of a service, the IPEndPoint class forms a connection point to a service.
// link to msft docs - https://docs.microsoft.com/en-us/dotnet/api/system.net.ipendpoint?view=netframework-4.8
private static void broadcast(object interfaceIP)
{
Spinner spin = new Spinner();
spin.Start();
object[] str;
Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, true);
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 5000);
NetworkInterface.GetAllNetworkInterfaces();
socket.Bind(new IPEndPoint((IPAddress)interfaceIP, 161)); // 161 = snmp udp port
IPEndPoint pEndPoint = new IPEndPoint(IPAddress.Broadcast, 161);
SnmpV1Packet snmpV2Packet = new SnmpV1Packet("public");
snmpV2Packet.Pdu.VbList.Add("1.3.6.1.2.1.1.1.0");
socket.SendTo(snmpV2Packet.encode(), pEndPoint);
IPEndPoint pEndPoint1 = new IPEndPoint(IPAddress.Any, 0);
byte[] numArray = new byte[32768];
DateTime now = DateTime.Now;
while ((DateTime.Now - now).TotalSeconds < 20)
{
int num = 0;
try
{
EndPoint endPoint = pEndPoint1;
num = socket.ReceiveFrom(numArray, ref endPoint);
pEndPoint1 = (IPEndPoint)endPoint;
}
catch
{
SocketException se = new SocketException();
num = -1;
}
if (num > 0)
{
if ((pEndPoint1.Address.Equals(IPAddress.Broadcast) ? false : !pEndPoint1.Address.Equals((IPAddress)interfaceIP)))
{
try
{
snmpV2Packet.decode(numArray, num);
DeviceDiscovery.UpdateListViewCallback updateListViewCallback = new DeviceDiscovery.UpdateListViewCallback(UpdateListView);
if (snmpV2Packet.Pdu.VbList[0].Value.ToString() != "Null")
{
string truncatedName = trunc(snmpV2Packet.Pdu.VbList[0].Value.ToString(), 29);
ipList.Add(pEndPoint1.Address.ToString());
nameList.Add(truncatedName);
}
}
catch
{
continue;
}
}
}
}
socket.Close();
if (ipList.Count == 0)
{
Console.WriteLine("No devices found on network.");
}
else
{
spin.Stop();
// clear current line
int currLine = Console.CursorTop;
Console.SetCursorPosition(0, Console.CursorTop);
Console.Write(new string(' ', Console.WindowWidth));
Console.SetCursorPosition(0, currLine);
Console.WriteLine();
Console.ForegroundColor = ConsoleColor.DarkMagenta;
Console.WriteLine("{0,-33} {1,25}", "Name", "IP Address ");
Console.WriteLine("{0,-33} {1,25}", "---------------------------", "----------- ");
for (int x = 0; x < nameList.Count; x++)
{
Console.ForegroundColor = ConsoleColor.DarkCyan;
Console.Write("{0,-33}", (x + 1) + ". " + nameList[x]);
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("{0,25}", ipList[x]);
}
displayMenu();
}
}
