}//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
//SNMP get方法
private 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 = SnmpVersion.Ver2;
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
SnmpV2Packet result = (SnmpV2Packet)target.Request(pdu, param);
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
this.textBox1.Text += string.Format("Error in SNMP reply. Error {0} index {1} \r\n", result.Pdu.ErrorStatus, result.Pdu.ErrorIndex);
}
else
{
// Reply variables are returned in the same order as they were added
// to the VbList
//result.Pdu.VbList[0].Oid.ToString()
//SnmpConstants.GetTypeName(result.Pdu.VbList[0].Value.Type)
//result.Pdu.VbList[0].Value.ToString())
get = result.Pdu.VbList[0].Value.ToString();
}
target.Dispose();
}
return(get);
}
}//将对应id的条目的状态栏设置为橘红色
private void GetSNMPResponse(object input_id)
{
//inputmodel temp =new inputmodel();
//temp = (inputmodel)mod;
//CancellationTokenSource token = temp.canceltoken;
string id = (string)input_id;
string ipaddr = null;
for (int i = 0; i < Common.dt_snmp.Rows.Count; i++)
{
string tmp = Common.dt_snmp.Rows[i]["Id"].ToString();
if (tmp == (string)id)
{
ipaddr = Common.dt_snmp.Rows[i]["dev_ip"].ToString();
}
}
int feq = Common.getfequency((string)id);
//填充snmp包头信息
OctetString community = new OctetString("public");
//社区
AgentParameters param = new AgentParameters(community);
//版本
param.Version = SnmpVersion.Ver1;
//ip地址代理
IpAddress agent = new IpAddress(ipaddr);
//定义udp包
UdpTarget target = new UdpTarget((IPAddress)agent, 161, 2000, 1);
Pdu pdu = new Pdu(PduType.Get);
//填充pdu列表
pdu.VbList.Add(".1.3.6.1.2.1.1.3.0"); //设备名的OID号
for (; ;)
{
if (canceltokensource.IsCancellationRequested == true)
{
Common.writetologfrm(string.Format("SNMP 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
}
Dictionary <string, string> output_cache = new Dictionary <string, string>();
try
{
//创建snmp请求
SnmpV1Packet result = (SnmpV1Packet)target.Request(pdu, param);
if (result != null)
{
//errorstatus不等于0则错误
if (result.Pdu.ErrorStatus != 0)
{
this.Invoke(new MethodInvoker(() => show_failed((string)id)));
}
else
{ //正确则返回pdu数据
for (int x = 0; x < result.Pdu.VbList.Count; x++)
{
this.Invoke(new MethodInvoker(() => show_success((string)id)));
output_cache.Add(result.Pdu.VbList[x].Oid.ToString(), result.Pdu.VbList[x].Value.ToString());
}
}
}
else
{
this.Invoke(new MethodInvoker(() => show_failed((string)id)));
}
}
catch (Exception e)
{
this.Invoke(new MethodInvoker(() => Common.writetologfrm(string.Format("SNMP异常 ID:{0} 描述:{1} ", id.ToString(), e.Message))));
this.Invoke(new MethodInvoker(() => show_failed((string)id)));
continue;
}
finally
{
Thread.Sleep(Common.getfequency((string)id));
}
}
//target.Dispose();
}//SNMP线程工作内容
private void button11_Click(object sender, EventArgs e)
{
//SnmpTest snt = new SnmpTest(tbAddress.Text, "public", ".1.3.6.1.4.1.38446");
//string[] t= {".1.3.6.1.4.1.38446"};
//snt.Test();
OctetString community = new OctetString("public");
AgentParameters param = new AgentParameters(community);
param.Version = SnmpVersion.Ver2;
IpAddress agent = new IpAddress("192.168.1.120");
UdpTarget target = new UdpTarget((IPAddress)agent, 161, 2000, 1);
Pdu pdu2 = new Pdu(PduType.GetBulk);
pdu2.VbList.Add(".1.3.6.1.4.1.38446.1.1.2.1.13");
SnmpV2Packet result2 = (SnmpV2Packet)target.Request(pdu2, param);
int i = result2.Pdu.VbCount;
string str = SnmpConstants.GetTypeName(result2.Pdu.VbList[0].Value.Type);
string str2 = result2.Pdu.VbList[0].Value.ToString();
return;
// Define Oid that is the root of the MIB
// tree you wish to retrieve
Oid rootOid = new Oid(".1.3.6.1.4.1.38446.1.5.9.1.9"); // ifDescr
// This Oid represents last Oid returned by
// the SNMP agent
Oid lastOid = (Oid)rootOid.Clone();
// Pdu class used for all requests
Pdu pdu = new Pdu(PduType.GetBulk);
// In this example, set NonRepeaters value to 0
pdu.NonRepeaters = 0;
// MaxRepetitions tells the agent how many Oid/Value pairs to return
// in the response.
pdu.MaxRepetitions = 5;
// Loop through results
while (lastOid != null)
{
// When Pdu class is first constructed, RequestId is set to 0
// and during encoding id will be set to the random value
// for subsequent requests, id will be set to a value that
// needs to be incremented to have unique request ids for each
// packet
if (pdu.RequestId != 0)
{
pdu.RequestId += 1;
}
// Clear Oids from the Pdu class.
pdu.VbList.Clear();
// Initialize request PDU with the last retrieved Oid
pdu.VbList.Add(lastOid);
// Make SNMP request
SnmpV2Packet result = (SnmpV2Packet)target.Request(pdu, param);
// You should catch exceptions in the Request if using in real application.
// 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);
lastOid = null;
break;
}
else
{
// Walk through returned variable bindings
foreach (Vb v in result.Pdu.VbList)
{
// Check that retrieved Oid is "child" of the root OID
if (rootOid.IsRootOf(v.Oid))
{
Console.WriteLine("{0} ({1}): {2}",
v.Oid.ToString(),
SnmpConstants.GetTypeName(v.Value.Type),
v.Value.ToString());
lastOid = v.Oid;
}
else
{
// we have reached the end of the requested
// MIB tree. Set lastOid to null and exit loop
lastOid = null;
}
}
}
}
else
{
Console.WriteLine("No response received from SNMP agent.");
}
}
target.Dispose();
}
