/// <summary>
/// Converts the given byte array to an OID.<br/>
/// Optionally, the constructed OID will be appended at the end of the <paramref name="rootOid" />.paramref name="rootOid"<br/>
/// For example: byte[] { 0xb8, 0x27, 0xeb, 0x97, 0xb6, 0x39 } will convert to "184.39.235.151.182.57".
/// </summary>
/// <param name="bytes">The byte array to convert.</param>
/// <param name="rootOid">The root OID to append the converted byte array to.</param>
/// <returns>A byte array with the hex values of the string.</returns>
public static Oid ToDottedDecimalOid(this byte[] bytes, Oid rootOid = null)
{
if (bytes == null)
{
throw new ArgumentNullException(nameof(bytes), "The bytes array to convert is null");
}
Oid returnOid = (Oid)rootOid?.Clone() ?? new Oid();
returnOid.Add(bytes.ToDottedDecimalString());
return(returnOid);
}
private System.Collections.Generic.Dictionary <string, string> ReceiveResponseWithTableVB(TableVarBinding tableVb, Pdu pdu, UdpTarget target, IAgentParameters param)
{
if (string.IsNullOrEmpty(tableVb.TableEntryOid))
{
throw new System.ArgumentNullException("The TableEntryOid can not be null or empty.");
}
Oid oid = new Oid(tableVb.TableEntryOid);
Oid oid2 = null;
if (string.IsNullOrEmpty(tableVb.ColumnOid))
{
oid2 = (Oid)oid.Clone();
}
else
{
oid2 = new Oid(tableVb.ColumnOid);
}
System.Collections.Generic.Dictionary <string, string> dictionary = new System.Collections.Generic.Dictionary <string, string>();
while (oid2 != null)
{
pdu.VbList.Clear();
pdu.VbList.Add(oid2);
SnmpPacket snmpPacket = target.Request(pdu, param);
this.validateResponse(snmpPacket, pdu);
foreach (Vb current in snmpPacket.Pdu.VbList)
{
if (!oid.IsRootOf(current.Oid))
{
oid2 = null;
break;
}
if (current.Value.Type == SnmpConstants.SMI_ENDOFMIBVIEW)
{
oid2 = null;
break;
}
string key = current.Oid.ToString();
if (!dictionary.ContainsKey(key))
{
dictionary.Add(key, current.Value.ToString());
oid2 = current.Oid;
}
}
}
return(dictionary);
}
public static Dictionary <string, string> getWalkValue_v3(string host, int port, int snmpver, string comm, string irootOid)
{
Dictionary <string, string> dic = new Dictionary <string, string>();
// SNMP community name
OctetString community = new OctetString(comm);
// Define agent parameters class
AgentParameters param = new AgentParameters(community);
// Set SNMP version to 2 (GET-BULK only works with SNMP ver 2 and 3)
param.Version = SnmpVersion.Ver3;
// 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(host);
// Construct target
UdpTarget target = new UdpTarget((IPAddress)agent, port, 2000, 1);
// Define Oid that is the root of the MIB
// tree you wish to retrieve
Oid rootOid = new Oid(irootOid); // 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 = 1000;
try
{
// 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
SnmpV3Packet result = new SnmpV3Packet();
result.authPriv(ASCIIEncoding.UTF8.GetBytes("milan"),
ASCIIEncoding.UTF8.GetBytes("myAuthSecret"), AuthenticationDigests.MD5,
ASCIIEncoding.UTF8.GetBytes("myPrivSecret"), PrivacyProtocols.DES);
result = (SnmpV3Packet)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)
{
// 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))
{
dic.Add(v.Oid.ToString(), v.Value.ToString());
}
else
{
// we have reached the end of the requested
// MIB tree. Set lastOid to null and exit loop
lastOid = null;
}
}
}
}
}
target.Close();
return(dic);
}
catch (Exception ex)
{
ex.Message.ToString();
target.Close();
return(dic);
}
}
private List <Vb> ReadFdbPortTable(SnmpTarget snmpTarget)
{
var community = new OctetString(
string.IsNullOrEmpty(snmpTarget.Community) ? "public" : snmpTarget.Community);
var param = new AgentParameters(community)
{
Version = SnmpVersion.Ver2
};
var agent = new IpAddress(snmpTarget.IpAddress);
var target = new UdpTarget((IPAddress)agent, 161, 2000, 1);
var rootOid = new Oid(SnmpOids.Dot1DTpFdbPort);
var lastOid = (Oid)rootOid.Clone();
var pdu = new Pdu(PduType.GetBulk)
{
NonRepeaters = 0, MaxRepetitions = 5
};
var results = new List <Vb>();
while (lastOid != null)
{
if (pdu.RequestId != 0)
{
pdu.RequestId += 1;
}
pdu.VbList.Clear();
pdu.VbList.Add(lastOid);
var result = (SnmpV2Packet)target.Request(pdu, param);
if (result != null)
{
if (result.Pdu.ErrorStatus != 0)
{
Console.WriteLine("Error in SNMP reply. Error {0} index {1}",
result.Pdu.ErrorStatus,
result.Pdu.ErrorIndex);
break;
}
foreach (var v in result.Pdu.VbList)
{
if (rootOid.IsRootOf(v.Oid))
{
Console.WriteLine("{0} ({1}): {2}",
v.Oid,
SnmpConstants.GetTypeName(v.Value.Type),
v.Value);
results.Add(v);
lastOid = v.Value.Type == SnmpConstants.SMI_ENDOFMIBVIEW ? null : v.Oid;
}
else
{
lastOid = null;
}
}
}
else
{
Console.WriteLine("No response received from SNMP agent.");
}
}
target.Close();
return(results);
}
public void Update()
{
Oid rootOid = new Oid("1.3.6.1.2.1.31.1.1.1.1.2");
Oid lastOid = (Oid)rootOid.Clone();
while (lastOid != null)
{
if (pdu.RequestId != 0)
{
pdu.RequestId++;
}
pdu.VbList.Clear();
pdu.VbList.Add(lastOid);
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
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());
if (v.Value.Type == SnmpConstants.SMI_ENDOFMIBVIEW)
{
lastOid = null;
}
else
{
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.Close();
/*SnmpV2Packet result = null;
*
* try
* {
* result = (SnmpV2Packet)target.Request(pdu, param);
* } catch(Exception e)
* {
* Console.WriteLine(e.Message);
* }
*
* if (result != null)
* {
* if (result.Pdu.ErrorStatus != 0)
* {
* Console.WriteLine("Error in SNMP reply. Error {0} index {1}",
* result.Pdu.ErrorStatus,
* result.Pdu.ErrorIndex);
* }
* else
* {
* Console.WriteLine("sysDescr({0}) ({1}): {2}",
* result.Pdu.VbList[0].Oid.ToString(),
* SnmpConstants.GetTypeName(result.Pdu.VbList[0].Value.Type),
* result.Pdu.VbList[0].Value.ToString());
* Console.WriteLine("sysObjectID({0}) ({1}): {2}",
* result.Pdu.VbList[1].Oid.ToString(),
* SnmpConstants.GetTypeName(result.Pdu.VbList[1].Value.Type),
* result.Pdu.VbList[1].Value.ToString());
* Console.WriteLine("sysUpTime({0}) ({1}): {2}",
* result.Pdu.VbList[2].Oid.ToString(),
* SnmpConstants.GetTypeName(result.Pdu.VbList[2].Value.Type),
* result.Pdu.VbList[2].Value.ToString());
* Console.WriteLine("sysContact({0}) ({1}): {2}",
* result.Pdu.VbList[3].Oid.ToString(),
* SnmpConstants.GetTypeName(result.Pdu.VbList[3].Value.Type),
* result.Pdu.VbList[3].Value.ToString());
* Console.WriteLine("sysName({0}) ({1}): {2}",
* result.Pdu.VbList[4].Oid.ToString(),
* SnmpConstants.GetTypeName(result.Pdu.VbList[4].Value.Type),
* result.Pdu.VbList[4].Value.ToString());
*
* }
* }
* else
* {
* Console.WriteLine("No Response received from snmp agent.");
* }*/
}
public void GetTree()
{
int counter = 0;
param.Version = SnmpVersion.Ver1;
Oid rootOid = new Oid("1.3.6.1.2.1");
Oid lastOid = (Oid)rootOid.Clone();
Pdu pdu = new Pdu(PduType.GetNext);
while (lastOid != null)
{
if (pdu.RequestId != 0)
{
pdu.RequestId += 1;
}
pdu.VbList.Clear();
pdu.VbList.Add(lastOid);
SnmpV1Packet result = (SnmpV1Packet)target.Request(pdu, param);
if (result != null)
{
if (result.Pdu.ErrorStatus != 0)
{
Console.WriteLine("Error in SNMP reply. Error {0} index {1}",
result.Pdu.ErrorStatus, result.Pdu.ErrorIndex);
lastOid = null;
break;
}
else
{
foreach (Vb v in result.Pdu.VbList)
{
if (rootOid.IsRootOf(v.Oid))
{
OidNumber = v.Oid.ToString();
string temp = OidNumber.Substring(OidNumber.Length - 2);
if (temp == ".0")
{
counter = 0;
string name = translate(OidNumber.Remove(OidNumber.Length - 2), null);
if (name != null)
{
lista.Add(new Dane(v.Oid.ToString(), name));
}
}
else
{
if (translate(lastOid.ToString().Remove(lastOid.ToString().Length - 2), null) != null && counter == 0)
{
int length = lastOid.ToString().Length - 2;
string oid = OidNumber.Substring(0, length);
string name = translate(oid, null);
if (name != null)
{
lista.Add(new Dane(oid, name));
counter++;
}
}
}
lastOid = v.Oid;
}
else
{
lastOid = null;
}
}
}
}
else
{
Console.WriteLine("No response received from SNMP agent.");
}
}
foreach (var i in lista)
{
if (OidNumber.Contains("1.3.6.1.2.1.55"))
{
break;
}
}
}
/// <summary>
/// Will get the rest of the variables, parts and percentages
/// </summary>
private Dictionary<String, String> getData()
{
Dictionary<String, String> dictionary = new Dictionary<String, String>();
OctetString community = new OctetString( "public" );
AgentParameters param = new AgentParameters( community );
param.Version = SnmpVersion.Ver1;
IpAddress agent = new IpAddress( printerName );
UdpTarget target = new UdpTarget( (System.Net.IPAddress)agent, 161, 2000, 1 );
Oid rootOid = new Oid( printerOID ); // ifDescr
Oid lastOid = (Oid)rootOid.Clone();
Pdu pdu = new Pdu( PduType.GetNext );
while ( lastOid != null )
{
// When Pdu class is first constructed, RequestId is set to a random value
// that needs to be incremented on subsequent requests made using the
// same instance of the Pdu class.
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
SnmpV1Packet result = null;
try
{
result = (SnmpV1Packet)target.Request( pdu, param );
}
catch
{
return null;
}
// 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 ) )
{
dictionary.Add( v.Oid.ToString(), v.Value.ToString() );
lastOid = v.Oid;
}
else
{
lastOid = null;
}
}
}
}
else
{
Console.WriteLine( "No response received from SNMP agent." );
}
}
target.Close();
return dictionary;
}
private void snmpwalk()
{
try
{
string hexstr = @"[0-9a-fA-F]{2}\s[0-9a-fA-F]{2}\s[0-9a-fA-F]{2}\s";
//匹配连续三组十六进制字符的正则式
Regex regex = new Regex(hexstr);
OctetString community = new OctetString("public");
AgentParameters param = new AgentParameters(community);
param.Version = SnmpVersion.Ver1;
IpAddress agent = new IpAddress(Common.getipbyid(id));
UdpTarget target = new UdpTarget((IPAddress)agent, 161, 2000, 1);
List <string> miblist = Common.getmonitoritems(id);
//Dictionary<string, string> output_cache = new Dictionary<string, string>();
Pdu pdu = new Pdu(PduType.GetNext);
for (int i = 0; i < miblist.Count; i++)
{
Oid rootOid = new Oid(miblist[i]);
Oid lastOid = (Oid)rootOid.Clone();
while (lastOid != null)
{
string resultstring = null;
if (pdu.RequestId != 0)
{
pdu.RequestId += 1;
}
pdu.VbList.Clear();
pdu.VbList.Add(lastOid);
SnmpV1Packet result = (SnmpV1Packet)target.Request(pdu, param);
if (result != null)
{
if (result.Pdu.ErrorStatus != 0)
{
Common.writetologfrm(string.Format("SNMP Walk(GET-Next错误),错误号:{0} 错误位置:{1}", result.Pdu.ErrorStatus, result.Pdu.ErrorIndex));
lastOid = null;
break;
}
else
{
foreach (Vb vb in result.Pdu.VbList)
{ //检查子节点
if (rootOid.IsRootOf(vb.Oid))
{
//如果字符是三组16进制开头的，则转码成中文
string sourcevalue = vb.Value.ToString();
MatchCollection matchlist = regex.Matches(sourcevalue);
if (matchlist.Count > 0)
{
sourcevalue = sourcevalue.Replace(" ", "");
resultstring += getchsfromhex(sourcevalue);
}
else
{
resultstring += vb.Value.ToString();
}
resultstring += "\r\n---------------------------------\r\n";
lastOid = vb.Oid;
//键与值加入dictionary
dict.Add(vb.Oid.ToString(), resultstring);
}
else
{ //到尾后清空oid
lastOid = null;
}
}
}
}
else
{
Common.writetologfrm("SNMP Walk(GET-Next）未能收到回复");
}
}
//获取中文名，与oid合并后加入listbox
string tmpstr = "sys_mib='" + rootOid + "'";
DataRow[] dr = Common.dt_snmp_allitems.Select(tmpstr);
string chsname = dr[0]["sys_service"].ToString();
list_items.Items.Add(chsname + "@" + rootOid.ToString());
}
}
catch (Exception e) {
MessageBox.Show(string.Format("获取SNMP消息遇到错误!\r\n{0}", e.Message), "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
public static void GetTable(string host, string community, string oid, DataGridView table)
{
string type;
Program.mibObjectsTypes.TryGetValue(Program.mibObjects.FirstOrDefault(x => x.Value == oid).Key, out type);
if (type != "T")
{
MessageBox.Show("Selected position is not a table!");
return;
}
table.Rows.Clear();
table.Refresh();
Dictionary <String, Dictionary <uint, AsnType> > result = new Dictionary <String, Dictionary <uint, AsnType> >();
List <uint> tableColumns = new List <uint>();
List <string> tableRows = new List <string>();
AgentParameters param;
IpAddress peer;
try
{
param = new AgentParameters(SnmpVersion.Ver2, new OctetString(community));
peer = new IpAddress(host);
}
catch (Exception e)
{
MessageBox.Show("Invalid IP/port or community settings");
return;
}
if (!peer.Valid)
{
MessageBox.Show("Unable to resolve name or error in address for peer: {0}", host);
return;
}
UdpTarget target = new UdpTarget((System.Net.IPAddress)peer);
Oid startOid = new Oid(oid);
startOid.Add(1);
Pdu getNextPdu = Pdu.GetNextPdu();
Oid curOid = (Oid)startOid.Clone();
List <string> columnNames = new List <string>();
string searchOid = "." + startOid.ToString();
foreach (KeyValuePair <string, string> kvp in Program.mibObjects)
{
if (kvp.Value.Contains(searchOid) && !kvp.Value.Equals(searchOid))
{
columnNames.Add(kvp.Key);
}
}
while (startOid.IsRootOf(curOid))
{
SnmpPacket res = null;
try
{
res = target.Request(getNextPdu, param);
}
catch (Exception ex)
{
MessageBox.Show("Request failed: {0}", ex.Message);
target.Close();
return;
}
if (res.Pdu.ErrorStatus != 0)
{
MessageBox.Show("SNMP agent returned error " + res.Pdu.ErrorStatus + " for request Vb index " + res.Pdu.ErrorIndex);
target.Close();
return;
}
foreach (Vb v in res.Pdu.VbList)
{
curOid = (Oid)v.Oid.Clone();
if (startOid.IsRootOf(v.Oid))
{
uint[] childOids = Oid.GetChildIdentifiers(startOid, v.Oid);
uint[] instance = new uint[childOids.Length - 1];
Array.Copy(childOids, 1, instance, 0, childOids.Length - 1);
String strInst = InstanceToString(instance);
uint column = childOids[0];
if (!tableColumns.Contains(column))
{
tableColumns.Add(column);
}
if (result.ContainsKey(strInst))
{
result[strInst][column] = (AsnType)v.Value.Clone();
}
else
{
result[strInst] = new Dictionary <uint, AsnType>();
result[strInst][column] = (AsnType)v.Value.Clone();
}
}
else
{
break;
}
}
if (startOid.IsRootOf(curOid))
{
getNextPdu.VbList.Clear();
getNextPdu.VbList.Add(curOid);
}
}
target.Close();
if (result.Count <= 0)
{
MessageBox.Show("No results returned.");
}
else
{
table.ColumnCount = tableColumns.Count + 1;
table.Columns[0].Name = "Instance";
for (int i = 0; i < tableColumns.Count; i++)
{
table.Columns[i + 1].Name = columnNames[i];
//table.Columns[i + 1].Name = "Column id " + tableColumns[i];
}
foreach (KeyValuePair <string, Dictionary <uint, AsnType> > kvp in result)
{
tableRows.Add(kvp.Key);
foreach (uint column in tableColumns)
{
if (kvp.Value.ContainsKey(column))
{
tableRows.Add(kvp.Value[column].ToString());
}
else
{
tableRows.Add("");
}
}
table.Rows.Add(tableRows.ToArray());
tableRows.Clear();
}
}
}
/// <summary>
/// Funkcja zwracająca , zaczynając od obiektu o oid podanym w argumencie.
/// </summary>
/// <param name="version"></param>
/// <param name="startOid"></param>
/// <returns></returns>
public Dictionary <String, Dictionary <uint, AsnType> > GetTableRequest(SnmpVersion version, string _startOid)
{
Dictionary <String, Dictionary <uint, AsnType> > resultDictionary = new Dictionary <String, Dictionary <uint, AsnType> >();
//To jest OID tabeli na wejściu funkcji
Oid startOid = new Oid(_startOid);
/*
* // Not every row has a value for every column so keep track of all columns available in the table
* List<uint> tableColumns = new List<uint>();
*
* //Każda tabela OID ma na końcu .1 dla wpisu OID, trzeba go dodać do tabeli
* startOid.Add(1);
*
* //Przygotowanie PDU do zapytania
* Pdu pdu = new Pdu(PduType.GetNext);
*
* //Dodanie startOid do VarBindList PDU
* pdu.VbList.Add(startOid);
*/
Oid currentOid = (Oid)startOid.Clone();
AgentParameters param = new AgentParameters(
version, new OctetString(snmp.Community));
//Dopoki nie osiagniemy konca tabeli
while (startOid.IsRootOf(currentOid))
{
SnmpPacket result = null;
try
{
result = this.GetNextRequest(SnmpVersion.Ver2, currentOid.ToString(), this.snmp.PeerIP);
}
catch (Exception e)
{
Console.WriteLine("GetTableRequest(): request failed. " + e.Message);
return(null);
}
if (result.Pdu.ErrorStatus != 0)
{
Console.WriteLine("SNMP Agent returned error: " + result.Pdu.ErrorStatus +
" for request with Vb of index: " + result.Pdu.ErrorIndex);
return(null);
}
foreach (Vb v in result.Pdu.VbList)
{
currentOid = (Oid)v.Oid.Clone();
//upewniamy sie ze jestesmy w tabeli
if (startOid.IsRootOf(v.Oid))
{
//Otrzymanie ID childa z OID
uint[] childOids = Oid.GetChildIdentifiers(startOid, v.Oid);
// Get the value instance and converted it to a dotted decimal
// string to use as key in result dictionary
uint[] instance = new uint[childOids.Length - 1];
Array.Copy(childOids, 1, instance, 0, childOids.Length - 1);
String strInst = InstanceToString(instance);
// Column id is the first value past <table oid>.entry in the response OID
uint column = childOids[0];
if (resultDictionary.ContainsKey(strInst))
{
resultDictionary[strInst][column] = (AsnType)v.Value.Clone();
}
else
{
resultDictionary[strInst] = new Dictionary <uint, AsnType>();
resultDictionary[strInst][column] = (AsnType)v.Value.Clone();
}
}
else
{
// We've reached the end of the table. No point continuing the loop
break;
}
}
}
return(resultDictionary);
}
static int SNMPGet(string mac, string ip)
{
// 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.Ver2;
// 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);
UdpTarget target = new UdpTarget((IPAddress)agent, 161, 2000, 1);
Oid rootOid = new Oid(".1.3.6.1.2.1.17.7.1.2.2.1.2.1"); // dot1qTpFdbPort, .iso.org.dod.internet.mgmt.mib-2.dot1dBridge.qBridgeMIB.qBridgeMIBObjects.dot1qTp.dot1qTpFdbTable.dot1qTpFdbEntry.dot1qTpFdbPort
Oid lastOid = (Oid)rootOid.Clone();
Pdu pdu = new Pdu(PduType.GetNext);
while (lastOid != null)
{
// When Pdu class is first constructed, RequestId is set to a random value
// that needs to be incremented on subsequent requests made using the
// same instance of the Pdu class.
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());
*/
if (v.Oid.ToString().EndsWith(mac))
{
target.Close();
return(Convert.ToInt32(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.Close();
return(-1);
}
public List <WalkTowerDevice> WalkSendReturn(string IP, int Port, string Version, string communityRead, List <WalkTowerDevice> walkList, string towerName, string DeviceName, int deviceID)
{
string walkTimeOutOID = "";
using (IDbConnection connection = new SqlConnection(ConfigurationManager.ConnectionStrings["DeviceConnection"].ConnectionString))
{
var mibInf = connection.Query <MibTreeInformation>("Select * From [TreeInformation]").ToList();
OctetString community = new OctetString(communityRead);
AgentParameters param = new AgentParameters(community);
if (Version == "V1")
{
param.Version = SnmpVersion.Ver1;
}
if (Version == "V2")
{
param.Version = SnmpVersion.Ver2;
}
IpAddress agent = new IpAddress(IP);
UdpTarget target = new UdpTarget((IPAddress)agent, Port, 2000, 1);
Oid rootOid = new Oid(".1.3.6.1");
Oid lastOid = (Oid)rootOid.Clone();
Pdu pdu = new Pdu(PduType.GetNext);
while (lastOid != null)
{
try
{
if (pdu.RequestId != 0)
{
pdu.RequestId += 1;
}
pdu.VbList.Clear();
pdu.VbList.Add(lastOid);
if (walkTimeOutOID == lastOid.ToString())
{
WalkTimeOunt++;
}
if (WalkTimeOunt <= 10)
{
walkTimeOutOID = lastOid.ToString();
}
else
{
return(walkList);
}
if (Version == "V1")
{
result = (SnmpV1Packet)target.Request(pdu, param);
}
if (Version == "V2")
{
result = (SnmpV2Packet)target.Request(pdu, param);
}
if (result != null)
{
if (result.Pdu.ErrorStatus != 0)
{
lastOid = null;
break;
}
else
{
foreach (Vb v in result.Pdu.VbList)
{
if (rootOid.IsRootOf(v.Oid))
{
WalkTowerDevice walk = new WalkTowerDevice();
ID++;
walk.ID = ID;
walk.WalkID = ID;
string oid = v.Oid.ToString();
var OidMibdescription = mibInf.Where(m => m.OID == oid).FirstOrDefault();
if (OidMibdescription == null)
{
oid = oid.Remove(oid.Length - 1);
oid = oid.Remove(oid.Length - 1);
OidMibdescription = mibInf.Where(o => o.OID == oid).FirstOrDefault();
}
if (OidMibdescription == null)
{
oid = oid.Remove(oid.Length - 1);
oid = oid.Remove(oid.Length - 1);
OidMibdescription = mibInf.Where(o => o.OID == oid).FirstOrDefault();
if (OidMibdescription != null)
{
walk.WalkDescription = OidMibdescription.Description;
}
}
else
{
walk.WalkDescription = OidMibdescription.Description;
}
if (OidMibdescription != null)
{
walk.WalkDescription = OidMibdescription.Description;
}
else
{
walk.WalkDescription = "Is Not Description";
}
walk.WalkOID = v.Oid.ToString();
var oidname = mibInf.Where(o => o.OID == oid).FirstOrDefault();
if (oidname != null)
{
walk.OIDName = oidname.Name;
}
else
{
walk.OIDName = "Is Not Name";
}
walk.Type = v.Value.ToString();
walk.Value = SnmpConstants.GetTypeName(v.Value.Type);
walk.ScanInterval = 60;
walk.DeviceName = DeviceName;
walk.TowerName = towerName;
walk.DeviceID = deviceID;
walk.IP = IP;
walk.Version = Version;
//walk.StartCorrect = "0";
//walk.EndCorrect = "0";
//walk.OneStartError = "0";
//walk.OneEndError = "0";
//walk.OneStartCrash = "0";
//walk.OneEndCrash = "0";
//walk.TwoStartError = "0";
//walk.TwoEndError = "0";
//walk.TwoStartCrash = "0";
//walk.TwoEndCrash = "0";
walkList.Add(walk);
lastOid = v.Oid;
}
else
{
lastOid = null;
}
}
}
}
}
catch (Exception e) { }
}
target.Close();
}
return(walkList);
}
private void GetTable(String host, AgentParameters param, String tableOID, DataGridView table)
{
table.Rows.Clear();
table.Refresh();
Dictionary <String, Dictionary <uint, AsnType> > result = new Dictionary <String, Dictionary <uint, AsnType> >();
List <uint> tableColumns = new List <uint>();
List <string> tableRows = new List <string>();
IpAddress peer = new IpAddress(host);
if (!peer.Valid)
{
MessageBox.Show("Unable to resolve name or error in address for peer: {0}", host);
return;
}
UdpTarget target = new UdpTarget((IPAddress)peer);
Oid startOid = new Oid(tableOID);
startOid.Add(1);
Pdu nextPdu = Pdu.GetNextPdu();
nextPdu.VbList.Add(startOid);
Oid curOid = (Oid)startOid.Clone();
List <string> colNames = new List <string>();
string searchOid = "." + startOid.ToString();
foreach (KeyValuePair <string, string> kvp in Program.MIbsList)
{
if (kvp.Value.Contains(searchOid) && !kvp.Value.Equals(searchOid))
{
colNames.Add(kvp.Key);
}
}
while (startOid.IsRootOf(curOid))
{
SnmpPacket res = null;
try
{
res = target.Request(nextPdu, param);
}
catch (Exception e)
{
MessageBox.Show("Request failed: {0}", e.Message);
target.Close();
return;
}
if (res.Pdu.ErrorStatus != 0)
{
MessageBox.Show("SNMP agent returned error " + res.Pdu.ErrorStatus + " for request Vb index " + res.Pdu.ErrorIndex);
target.Close();
return;
}
foreach (Vb v in res.Pdu.VbList)
{
curOid = (Oid)v.Oid.Clone();
if (startOid.IsRootOf(v.Oid))
{
uint[] childOids = Oid.GetChildIdentifiers(startOid, v.Oid);
uint[] instance = new uint[childOids.Length - 1];
Array.Copy(childOids, 1, instance, 0, childOids.Length - 1);
String strInst = InstanceToString(instance);
uint column = childOids[0];
if (!tableColumns.Contains(column))
{
tableColumns.Add(column);
}
if (result.ContainsKey(strInst))
{
result[strInst][column] = (AsnType)v.Value.Clone();
}
else
{
result[strInst] = new Dictionary <uint, AsnType>();
result[strInst][column] = (AsnType)v.Value.Clone();
}
}
else
{
break;
}
}
if (startOid.IsRootOf(curOid))
{
nextPdu.VbList.Clear();
nextPdu.VbList.Add(curOid);
}
}
target.Close();
if (result.Count <= 0)
{
MessageBox.Show("No results returned.");
}
else
{
table.ColumnCount = tableColumns.Count + 1;
table.Columns[0].Name = "Instance";
for (int i = 0; i < tableColumns.Count; i++)
{
//table.Columns[i + 1].Name = "Column id " + tableColumns[i];
table.Columns[i + 1].Name = colNames[i];
}
foreach (KeyValuePair <string, Dictionary <uint, AsnType> > kvp in result)
{
tableRows.Add(kvp.Key);
foreach (uint column in tableColumns)
{
if (kvp.Value.ContainsKey(column))
{
tableRows.Add(kvp.Value[column].ToString());
}
else
{
tableRows.Add("");
}
}
table.Rows.Add(tableRows.ToArray());
tableRows.Clear();
}
}
}
private void ConstructListByIP(IpAddress agentIP, string equipName)
{
if (string.IsNullOrEmpty(equipName))
{
try
{
equipName = App.idAndEquipList[App.ipAndIPinfoList[agentIP.ToString()].EquipIndex].Name;
}
catch { }
}
ocInterfaces.Clear();
OctetString community = new OctetString(App.snmpCommunity);
AgentParameters param = new AgentParameters(community);
param.DisableReplySourceCheck = !App.snmpCheckSrcFlag;
// Set SNMP version to 2 (GET-BULK only works with SNMP ver 2 and 3)
param.Version = SnmpVersion.Ver2;
// Construct target
UdpTarget target = new UdpTarget((IPAddress)agentIP, App.snmpPort, App.snmpTimeout, App.snmpRetry);
// Define Oid that is the root of the MIB
// tree you wish to retrieve
Oid rootOid = new Oid("1.3.6.1.2.1.2.2.1.1"); // ifIndex
// 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 = null;
try
{
result = (SnmpV2Packet)target.Request(pdu, param);
}
catch (Exception ex)
{
MessageBox.Show("获取SNMP应答出现错误\n" + ex.Message);
target.Close();
return;
}
// 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
MessageBox.Show(string.Format("SNMP应答数据包中有错误。 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))
{
if (v.Value.Type == SnmpConstants.SMI_ENDOFMIBVIEW)
{
lastOid = null;
}
else
{
lastOid = v.Oid;
}
Integer32 f = v.Value as Integer32;
Interface intf = new Interface(agentIP);
intf.EquipName = equipName;
//intf.TimerInteral = double.Parse(cbbTimerInterval.Text);
ocInterfaces.Add(f, intf);
}
else
{
// we have reached the end of the requested
// MIB tree. Set lastOid to null and exit loop
lastOid = null;
break; // 每个数据包获取5个值，一旦有一个不是这一列的数据，后面的应该都不是了
}
}
}
}
else
{
MessageBox.Show("指定网管代理未返回有效信息");
}
}
target.Close();
string errorMessage;
foreach (Integer32 i in ocInterfaces.Keys)
{
string strOid = "1.3.6.1.2.1.2.2.1.2." + i.ToString();
VbCollection vbc = SnmpHelper.GetResultsFromOids(agentIP, new string[] { strOid }, out errorMessage);
ocInterfaces[i].Descr = vbc[0].Value.ToString();
ocInterfaces[i].IfIndex = i;
}
}
/// <summary>
/// Performs SNMP walk using Ver 1 GetNext operation.
/// </summary>
/// <param name="interfaceIdWalkRootOid">The retrievable value to start walking at. The actual OID is resolved from the device database.</param>
/// <returns>A <see cref="VbCollection" /> with the received data.</returns>
/// <remarks>Derived from example code at <see href="http://www.snmpsharpnet.com/?page_id=108" />.</remarks>
private VbCollection DoWalkGetNext(Oid interfaceIdWalkRootOid)
{
// This Oid represents last Oid returned by
// the SNMP agent
Oid lastOid = (Oid)interfaceIdWalkRootOid.Clone();
// Pdu class used for all requests
Pdu pdu = new Pdu(PduType.GetNext);
VbCollection returnCollection = new VbCollection();
// Loop through results
while (lastOid != null)
{
// When Pdu class is first constructed, RequestId is set to a random value
// that needs to be incremented on subsequent requests made using the
// same instance of the Pdu class.
Interlocked.CompareExchange(ref nextRequestId, 0, int.MaxValue); // wrap the request ID
pdu.RequestId = Interlocked.Increment(ref nextRequestId);
// Clear Oids from the Pdu class.
pdu.VbList.Clear();
// Initialize request PDU with the last retrieved Oid
pdu.VbList.Add(lastOid);
SnmpV1Packet result;
using (var target = new UdpTarget((IPAddress)this.Address, this.Options.Port, Convert.ToInt32(this.Options.Timeout.TotalMilliseconds), this.Options.Retries))
{
// Make SNMP request
result = (SnmpV1Packet)target.Request(pdu, this.QueryParameters);
}
SnmpAbstraction.RecordSnmpRequest(this.Address, pdu, result);
// You should catch exceptions in the Request if using in real application.
// [DJ3MU] : Yeah - cool idea - but I still wouldn't know what else to do with them.
// So for now, let fly them out to our caller.
// 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
log.Warn($"Error in SNMP reply of device '{this.Address}': Error status {result.Pdu.ErrorStatus} at index {result.Pdu.ErrorIndex}");
lastOid = null;
break;
}
else
{
// Walk through returned variable bindings
foreach (Vb v in result.Pdu.VbList)
{
// Check that retrieved Oid is "child" of the root OID
if (interfaceIdWalkRootOid.IsRootOf(v.Oid))
{
returnCollection.Add(v);
lastOid = v.Oid;
}
else
{
// we have reached the end of the requested
// MIB tree. Set lastOid to null and exit loop
lastOid = null;
}
}
}
}
else
{
throw new HamnetSnmpException($"No response received from SNMP agent for device '{this.Address}'", this.Address?.ToString());
}
}
return(returnCollection);
}
public PartialViewResult WalkEditPreset(int?page, string presetName)
{
walkSearch.Clear();
SearchNameWalk = "";
if (presetName != "Preset" && presetName != "Select" && presetName != "All")
{
Checked.Clear();
Time.Clear();
All = "All";
Select = "";
ViewBag.All = All;
ViewBag.Select = Select;
var preset = db.Presets.Where(p => p.PresetName == presetName).FirstOrDefault();
PresetEditName = presetName;
PresetIND = 0;
walkList.Clear();
ViewBag.IP = IPadrress;
var devicename = db.devicesTypes.Where(d => d.ID == preset.DeviceTypeID).FirstOrDefault();
var walkOid = db.MibTreeInformations.Where(m => m.DeviceID == devicename.ID).FirstOrDefault();
OctetString community = new OctetString("public");
AgentParameters param = new AgentParameters(community);
param.Version = SnmpVersion.Ver2;
IpAddress agent = new IpAddress(preset.DeviceIP);
UdpTarget target = new UdpTarget((IPAddress)agent, 161, 2000, 1);
Oid rootOid = new Oid(walkOid.OID); // ifDescr
Oid lastOid = (Oid)rootOid.Clone();
Pdu pdu = new Pdu(PduType.GetNext);
while (lastOid != null)
{
if (pdu.RequestId != 0)
{
pdu.RequestId += 1;
}
pdu.VbList.Clear();
pdu.VbList.Add(lastOid);
SnmpV2Packet result = (SnmpV2Packet)target.Request(pdu, param);
if (result != null)
{
foreach (Vb v in result.Pdu.VbList)
{
if (rootOid.IsRootOf(v.Oid))
{
WalkDevice walk = new WalkDevice();
ID++;
string oid = "." + v.Oid.ToString();
var OidMibdescription = db.MibTreeInformations.Where(m => m.OID == oid).FirstOrDefault();
if (OidMibdescription == null)
{
oid = oid.Remove(oid.Length - 1);
oid = oid.Remove(oid.Length - 1);
OidMibdescription = db.MibTreeInformations.Where(o => o.OID == oid).FirstOrDefault();
}
if (OidMibdescription == null)
{
oid = oid.Remove(oid.Length - 1);
oid = oid.Remove(oid.Length - 1);
OidMibdescription = db.MibTreeInformations.Where(o => o.OID == oid).FirstOrDefault();
if (OidMibdescription != null)
{
walk.WalkDescription = OidMibdescription.Description;
}
}
else
{
walk.WalkDescription = OidMibdescription.Description;
}
walk.ID = ID;
walk.WalkID = ID;
if (OidMibdescription != null)
{
walk.WalkOID = v.Oid.ToString();
}
//if (OidMibdescription!=null)
//walk.WalkDescription = OidMibdescription.Description;
walk.Type = v.Value.ToString();
walk.Time = 60;
walkList.Add(walk);
lastOid = v.Oid;
}
else
{
lastOid = null;
}
}
}
}
target.Close();
var CheckedItem = db.WalkDevices.Where(w => w.PresetID == preset.ID).ToList();
foreach (var ch in CheckedItem)
{
Checked.Add(ch.WalkID);
string[] s = { ch.WalkID.ToString(), ch.Time.ToString() };
Time.Add(s);
ViewBag.Tim = Time;
ViewBag.Checke = Checked;
}
ViewBag.Tim = Time;
ViewBag.Checke = Checked;
}
else
{
var preset_edit = db.Presets.Where(p => p.PresetName == PresetEditName).FirstOrDefault();
ViewBag.Tim = Time;
ViewBag.Checke = Checked;
if (presetName == "All")
{
All = "All";
Select = "";
ViewBag.All = All;
ViewBag.Select = Select;
PresetIND = 0;
return(PartialView("_WalkView", walkList.ToPagedList(page ?? 1, viewSearch)));
}
if (presetName == "Select")
{
Select = "Select";
All = "";
ViewBag.Select = Select;
ViewBag.All = All;
PresetIND = 1;
walkListEdit.Clear();
foreach (var ch in Checked)
{
walkListEdit.Add(walkList[ch - 1]);
}
return(PartialView("_WalkView", walkListEdit.ToPagedList(page ?? 1, viewSearch)));
}
}
EditInd = 1;
ViewBag.Edit = EditInd;
return(PartialView("_WalkView", walkList.ToPagedList(page ?? 1, viewSearch)));
}
public static void TestOidCollection()
{
int i;
OidCollection c = new OidCollection();
Assert.Equal(0, c.Count);
Oid o0 = new Oid(SHA1_Oid, SHA1_Name);
i = c.Add(o0);
Assert.Equal(0, i);
Oid o1 = new Oid(SHA256_Oid, SHA256_Name);
i = c.Add(o1);
Assert.Equal(1, i);
Assert.Equal(2, c.Count);
Assert.Same(o0, c[0]);
Assert.Same(o1, c[1]);
Assert.Throws<ArgumentOutOfRangeException>(() => GC.KeepAlive(c[-1]));
Assert.Throws<ArgumentOutOfRangeException>(() => GC.KeepAlive(c[c.Count]));
Oid o2 = new Oid(SHA1_Oid, SHA1_Name);
i = c.Add(o2);
Assert.Equal(2, i);
// If there multiple matches, the one with the lowest index wins.
Assert.Same(o0, c[SHA1_Name]);
Assert.Same(o0, c[SHA1_Oid]);
Assert.Same(o1, c[SHA256_Name]);
Assert.Same(o1, c[SHA256_Oid]);
Oid o3 = new Oid(null, null);
i = c.Add(o3);
Assert.Equal(3, i);
Assert.Throws<ArgumentNullException>(() => GC.KeepAlive(c[null]));
Object o = c["BOGUSBOGUS"];
Assert.Null(c["BOGUSBOGUS"]);
Oid[] a = new Oid[10];
for (int j = 0; j < a.Length; j++)
{
a[j] = new Oid(null, null);
}
Oid[] a2 = (Oid[])(a.Clone());
c.CopyTo(a2, 3);
Assert.Equal(a[0], a2[0]);
Assert.Equal(a[1], a2[1]);
Assert.Equal(a[2], a2[2]);
Assert.Equal(o0, a2[3]);
Assert.Equal(o1, a2[4]);
Assert.Equal(o2, a2[5]);
Assert.Equal(o3, a2[6]);
Assert.Equal(a[7], a2[7]);
Assert.Equal(a[8], a2[8]);
Assert.Equal(a[9], a2[9]);
Assert.Throws<ArgumentNullException>(() => c.CopyTo(null, 0));
Assert.Throws<ArgumentNullException>(() => c.CopyTo(null, -1));
Assert.Throws<ArgumentOutOfRangeException>(() => c.CopyTo(a, -1));
Assert.Throws<ArgumentException>(() => c.CopyTo(a, 7));
Assert.Throws<ArgumentOutOfRangeException>(() => c.CopyTo(a, 1000));
ICollection ic = c;
Assert.Throws<ArgumentException>(() => ic.CopyTo(new Oid[4, 3], 0));
Assert.Throws<InvalidCastException>(() => ic.CopyTo(new string[100], 0));
return;
}
public Dictionary<string, string> walk(UdpTarget target, string oid)
{
Dictionary<string, string> Output = new Dictionary<string, string>();
// Define Oid that is the root of the MIB
// tree you wish to retrieve
Oid rootOid = new Oid(oid); // 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.GetNext);
if (useCache == true ) {
Dictionary<string, string> data = getCache(target, oid);
if (data.Count > 0 ) {
return data;
}
}
// Loop through results
while (lastOid != null)
{
// When Pdu class is first constructed, RequestId is set to a random value
// that needs to be incremented on subsequent requests made using the
// same instance of the Pdu class.
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
SnmpV1Packet result = (SnmpV1Packet)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());
*/
// keep the result
Output.Add(v.Oid.ToString(), 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.");
}
}
if (useCache == true || overrideCache == true ) {
setCache(target, oid, Output);
}
return Output;
}
private int getSNMPParam(string ipAddr, SnmpSharpNet.Oid oid_needed)
{
try
{
OctetString community = new OctetString("public");
AgentParameters param = new AgentParameters(community);
param.Version = SnmpVersion.Ver2;
IpAddress agent = new IpAddress(ipAddr);
UdpTarget target = new UdpTarget((IPAddress)agent, 161, 2000, 1);
Oid rootOid = new Oid(oid_needed);
Oid lastOid = (Oid)rootOid.Clone();
Pdu pdu = new Pdu(PduType.GetBulk);
pdu.NonRepeaters = 0;
pdu.MaxRepetitions = 5;
while (lastOid != null)
{
if (pdu.RequestId != 0)
{
pdu.RequestId += 1;
}
pdu.VbList.Clear();
pdu.VbList.Add(lastOid);
try
{
SnmpV2Packet result = (SnmpV2Packet)target.Request(pdu, param);
if (result != null)
{
if (result.Pdu.ErrorStatus != 0)
{
throw new NullReferenceException();
}
else
{
foreach (Vb v in result.Pdu.VbList)
{
if (rootOid.IsRootOf(v.Oid))
{
if (v.Value.Type == SnmpConstants.SMI_ENDOFMIBVIEW)
{
lastOid = null;
}
else
{
lastOid = v.Oid;
}
target.Close();
return(Convert.ToInt32(v.Value));
}
else
{
lastOid = null;
}
}
}
}
else
{
throw new NullReferenceException();
}
}
catch (NullReferenceException)
{
}
}
target.Close();
return(0);
}
catch (Exception)
{
return(0);
}
}
private void GetTable(Oid oid)
{
SnmpV2Packet localResult = new SnmpV2Packet();
//table[n] wskazuje kolumny
//table[n][m] wskazuje konkretne komórki
List <List <String> > table = new List <List <String> >();
List <string> columnOID = new List <string>();
// This is the table OID supplied on the command line
Oid startOid = oid;
// Each table OID is followed by .1 for the entry OID. Add it to the table OID
// Add Entry OID to the end of the table OID
startOid.Add(1);
// Current OID will keep track of the last retrieved OID and be used as
// indication that we have reached end of table
Oid currentOid = (Oid)startOid.Clone();
Oid prevOid = null;
// Keep looping through results until end of table
// startOid.IsRootOf(curOid)
// Compares the passed object identifier against self to determine if self is the root of the passed object.
// If the passed object is in the same root tree as self then a true value is returned.
// Otherwise a false value is returned from the object.
while (true)
{
//make GetNext
localResult = _mainForm.GetNextRequest(currentOid);
//set prev before changing current
prevOid = currentOid;
uint[] prevChildOids = Oid.GetChildIdentifiers(startOid, prevOid);
//set OID result to currentOid
currentOid = localResult.Pdu.VbList[0].Oid;
// Make sure we are dealing with an OID that is part of the table
if (startOid.IsRootOf(currentOid))
{
//get every childOid start from startOID to currentOID
// if startOid = .1.1 and currentOid = .1.1.2.1 result will be [0] = 2 [1] = 1
uint[] currentChildOids = Oid.GetChildIdentifiers(startOid, currentOid);
//first column
if ((prevOid == startOid))
{
table.Add(new List <string>());
Oid columnOid = (Oid)startOid.Clone();
columnOid.Add(currentChildOids[0]);
columnOID.Add(columnOid.ToString());
}
//next columns
if (currentChildOids != null && prevChildOids != null)
{
//the first element is always name of column (new parameter in table)
if ((currentChildOids[0] > prevChildOids[0]))
{
//it means, currentOid is showing another column (parameter)
//adding another column!
table.Add(new List <string>());
Oid columnOid = (Oid)startOid.Clone();
columnOid.Add(currentChildOids[0]);
columnOID.Add(columnOid.ToString());
}
}
//saving the values
table[table.Count - 1].Add(localResult.Pdu.VbList[0].Value.ToString());
}
else
{
// We've reached the end of the table. No point continuing the loop
//wychodzi z pętli tylko wtedy, gdy wyszlismy poza korzeń czyli długość curOid jest taka sama jak start i nie sa równe
break;
}
}//end of while
/*
* startOid - początkowe .1.0
* prevOid - Oid z poprzedniego wywołania (służy do patrzenia, czy jesteśmy jeszcze w tej samej kolumnie czy już w nastepnej
* currentOid - otrzymane OID z metody GetNext
*
* curOid musi zawierać całe startOid i być dłuższe aby while działał
*
*/
ShowTable(columnOID, table);
}
/// <summary>SNMP WALK operation</summary>
/// <remarks>
/// When using SNMP version 1, walk is performed using GET-NEXT calls. When using SNMP version 2,
/// walk is performed using GET-BULK calls.
/// </remarks>
/// <example>Example SNMP walk operation using SNMP version 1:
/// <code>
/// String snmpAgent = "10.10.10.1";
/// String snmpCommunity = "private";
/// SimpleSnmp snmp = new SimpleSnmp(snmpAgent, snmpCommunity);
/// Dictionary<Oid, AsnType> result = snmp.Walk(SnmpVersion.Ver1, "1.3.6.1.2.1.1");
/// if( result == null ) {
/// Console.WriteLine("Request failed.");
/// } else {
/// foreach (KeyValuePair<Oid, AsnType> entry in result)
/// {
/// Console.WriteLine("{0} = {1}: {2}", entry.Key.ToString(), SnmpConstants.GetTypeName(entry.Value.Type),
/// entry.Value.ToString());
/// }
/// </code>
/// Will return:
/// <code>
/// 1.3.6.1.2.1.1.1.0 = OctetString: "Dual core Intel notebook"
/// 1.3.6.1.2.1.1.2.0 = ObjectId: 1.3.6.1.9.233233.1.1
/// 1.3.6.1.2.1.1.3.0 = TimeTicks: 0d 0h 0m 1s 420ms
/// 1.3.6.1.2.1.1.4.0 = OctetString: "*****@*****.**"
/// 1.3.6.1.2.1.1.5.0 = OctetString: "milans-nbook"
/// 1.3.6.1.2.1.1.6.0 = OctetString: "Developer home"
/// 1.3.6.1.2.1.1.8.0 = TimeTicks: 0d 0h 0m 0s 10ms
/// </code>
///
/// To use SNMP version 2, change snmp.Set() method call first parameter to SnmpVersion.Ver2.
/// </example>
/// <param name="version">SNMP protocol version. Acceptable values are SnmpVersion.Ver1 and
/// SnmpVersion.Ver2</param>
/// <param name="rootOid">OID to start WALK operation from. Only child OIDs of the rootOid will be
/// retrieved and returned</param>
/// <param name="tryGetBulk">this param is used to use get bulk on V2 requests</param>
/// <returns>Oid => AsnType value mappings on success, empty dictionary if no data was found or
/// null on error</returns>
public Dictionary<Oid, AsnType> Walk(bool tryGetBulk, SnmpVersion version, string rootOid)
{
if (!Valid)
{
if (!_suppressExceptions)
{
throw new SnmpException("SimpleSnmp class is not valid.");
}
return null;
}
// function only works on SNMP version 1 and SNMP version 2 requests
if (version != SnmpVersion.Ver1 && version != SnmpVersion.Ver2)
{
if (!_suppressExceptions)
{
throw new SnmpInvalidVersionException("SimpleSnmp support SNMP version 1 and 2 only.");
}
return null;
}
if (rootOid.Length < 2)
{
if (!_suppressExceptions)
{
throw new SnmpException(SnmpException.InvalidOid, "RootOid is not a valid Oid");
}
return null;
}
Oid root = new Oid(rootOid);
if (root.Length <= 0)
{
return null; // unable to parse root oid
}
Oid lastOid = (Oid)root.Clone();
Dictionary<Oid, AsnType> result = new Dictionary<Oid, AsnType>();
while (lastOid != null && root.IsRootOf(lastOid))
{
Dictionary<Oid, AsnType> val = null;
if (version == SnmpVersion.Ver1)
{
val = GetNext(version, new string[] { lastOid.ToString() });
}
else
{
if (tryGetBulk == true)
{
val = GetBulk(new string[] { lastOid.ToString() });
}
else
{
val = GetNext(version, new string[] { lastOid.ToString() });
}
}
// check that we have a result
if (val == null)
{
// error of some sort happened. abort...
return null;
}
foreach (KeyValuePair<Oid, AsnType> entry in val)
{
if (root.IsRootOf(entry.Key))
{
if (result.ContainsKey(entry.Key))
{
if (result[entry.Key].Type != entry.Value.Type)
{
throw new SnmpException(SnmpException.OidValueTypeChanged, "OID value type changed for OID: " + entry.Key.ToString());
}
else
result[entry.Key] = entry.Value;
}
else
{
result.Add(entry.Key, entry.Value);
}
lastOid = (Oid)entry.Key.Clone();
}
else
{
// it's faster to check if variable is null then checking IsRootOf
lastOid = null;
break;
}
}
}
return result;
}
public List <Host> SNMPWalk(string inOID)
{
List <Host> hosts = new List <Host>();
Oid rootOid = new Oid(inOID);
Oid lastOid = (Oid)rootOid.Clone();
Pdu pdu = new Pdu(PduType.GetBulk);
pdu.NonRepeaters = 0;
pdu.MaxRepetitions = 5;
while (lastOid != null)
{
if (pdu.RequestId != 0)
{
pdu.RequestId += 1;
}
pdu.VbList.Clear();
pdu.VbList.Add(lastOid);
SnmpV2Packet result = (SnmpV2Packet)target.Request(pdu, param);
if (result != null)
{
if (result.Pdu.ErrorStatus != 0)
{
Console.WriteLine("Error in SNMP reply. Error {0} index {1}",
result.Pdu.ErrorStatus,
result.Pdu.ErrorIndex);
lastOid = null;
break;
}
else
{
foreach (Vb v in result.Pdu.VbList)
{
if (rootOid.IsRootOf(v.Oid))
{
string s = Regex.Replace(v.Oid.ToString(), "(" + inOID + ".)|((Integer32))", String.Empty);
hosts.Add(new Host(v.Oid.ToString(), v.Value.ToString()));
Console.WriteLine("{0} ({1}): {2}",
v.Oid.ToString(),
SnmpConstants.GetTypeName(v.Value.Type),
v.Value.ToString());
if (v.Value.Type == SnmpConstants.SMI_ENDOFMIBVIEW)
{
lastOid = null;
}
else
{
lastOid = v.Oid;
}
}
else
{
lastOid = null;
}
}
}
}
else
{
Console.WriteLine("No response received from SNMP agent.");
}
}
target.Close();
return(hosts);
}
static void Main(string[] args)
{
// Delete file if it exists.
if (File.Exists(@".\\SnmpDump.txt"))
{
File.Delete(@".\\SnmpDump.txt");
}
if (args.Length != 3)
{
Console.WriteLine("Syntax: SnmpTable.exe <host> <community> <table oid>");
return;
}
Dictionary <String, Dictionary <uint, AsnType> > result = new Dictionary <String, Dictionary <uint, AsnType> >();
List <uint> tableColumns = new List <uint>();
AgentParameters param = new AgentParameters(SnmpVersion.Ver2, new OctetString(args[1]));
IpAddress peer = new IpAddress(args[0]);
if (!peer.Valid)
{
Console.WriteLine("Unable to resolve name or error in address for peer: {0}", args[0]);
return;
}
UdpTarget target = new UdpTarget((IPAddress)peer);
Oid startOid = new Oid(args[2]);
startOid.Add(1);
Pdu bulkPdu = Pdu.GetBulkPdu();
bulkPdu.VbList.Add(startOid);
bulkPdu.NonRepeaters = 0;
bulkPdu.MaxRepetitions = 100;
Oid curOid = (Oid)startOid.Clone();
while (startOid.IsRootOf(curOid))
{
SnmpPacket res = null;
try
{
res = target.Request(bulkPdu, param);
}
catch (Exception ex)
{
Console.WriteLine("Request failed: {0}", ex.Message);
target.Close();
return;
}
if (res.Version != SnmpVersion.Ver2)
{
Console.WriteLine("Received wrong SNMP version response packet.");
target.Close();
return;
}
if (res.Pdu.ErrorStatus != 0)
{
Console.WriteLine("SNMP agent returned error {0} for request Vb index {1}",
res.Pdu.ErrorStatus, res.Pdu.ErrorIndex);
target.Close();
return;
}
foreach (Vb v in res.Pdu.VbList)
{
curOid = (Oid)v.Oid.Clone();
if (startOid.IsRootOf(v.Oid))
{
uint[] childOids = Oid.GetChildIdentifiers(startOid, v.Oid);
uint[] instance = new uint[childOids.Length - 1];
Array.Copy(childOids, 1, instance, 0, childOids.Length - 1);
String strInst = InstanceToString(instance);
uint column = childOids[0];
if (!tableColumns.Contains(column))
{
tableColumns.Add(column);
}
if (result.ContainsKey(strInst))
{
result[strInst][column] = (AsnType)v.Value.Clone();
}
else
{
result[strInst] = new Dictionary <uint, AsnType>();
result[strInst][column] = (AsnType)v.Value.Clone();
}
}
else
{
break;
}
}
if (startOid.IsRootOf(curOid))
{
bulkPdu.VbList.Clear();
bulkPdu.VbList.Add(curOid);
bulkPdu.NonRepeaters = 0;
bulkPdu.MaxRepetitions = 100;
}
}
target.Close();
if (result.Count <= 0)
{
Console.WriteLine("No results returned.\n");
}
else
{
foreach (uint column in tableColumns)
{
//Console.Write("\tColumn id {0}", column);
}
Console.WriteLine("");
foreach (KeyValuePair <string, Dictionary <uint, AsnType> > kvp in result)
{
//Console.WriteLine("{0}", kvp.Key);
string Entry = "";
foreach (uint column in tableColumns)
{
if (kvp.Value.ContainsKey(column))
{
//Console.WriteLine("\t{0} ({1})", kvp.Value[column].ToString(),SnmpConstants.GetTypeName(kvp.Value[column].Type));
Entry += kvp.Value[column].ToString() + ";";
}
else
{
Console.Write("\t-");
}
}
using (StreamWriter sw = File.AppendText(path))
{
Console.WriteLine(Entry);
sw.WriteLine(Entry);
}
}
}
}
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();
}
static Dictionary <string, string> WalkJob(string host, string oid)
{
Dictionary <string, string> values = new Dictionary <string, string>();
// SNMP community name
try
{
OctetString community = new OctetString("public");
// Define agent parameters class
AgentParameters param = new AgentParameters(community);
// Set SNMP version to 1
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(host);
// Construct target
UdpTarget target = new UdpTarget((IPAddress)agent, 161, 2000, 1);
// Define Oid that is the root of the MIB
// tree you wish to retrieve
Oid rootOid = new Oid(oid); // 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.GetNext);
// Loop through results
while (lastOid != null)
{
// When Pdu class is first constructed, RequestId is set to a random value
// that needs to be incremented on subsequent requests made using the
// same instance of the Pdu class.
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
SnmpV1Packet result = (SnmpV1Packet)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))
{
//Debug.WriteLine("{0} ({1}): {2}",
// v.Oid.ToString(),
// SnmpConstants.GetTypeName(v.Value.Type),
// v.Value.ToString());
values.Add(v.Oid.ToString(), 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.Close();
}
catch (Exception ex)
{
Debug.WriteLine(ex.StackTrace);
}
return(values);
}
public static void GetTable()
{
Dictionary<String, Dictionary<uint, AsnType>> result = new Dictionary<String, Dictionary<uint, AsnType>>();
// Not every row has a value for every column so keep track of all columns available in the table
List<uint> tableColumns = new List<uint>();
// Prepare agent information
AgentParameters param = new AgentParameters(SnmpVersion.Ver2, new OctetString("public"));
IpAddress peer = new IpAddress("192.168.15.42");
if (!peer.Valid)
{
Console.WriteLine("Unable to resolve name or error in address for peer: {0}", "");
return;
}
UdpTarget target = new UdpTarget((IPAddress)peer);
// This is the table OID supplied on the command line
Oid startOid = new Oid("1.3.6.1.2.1.47.1.1.1");
// Each table OID is followed by .1 for the entry OID. Add it to the table OID
startOid.Add(1); // Add Entry OID to the end of the table OID
// Prepare the request PDU
Pdu bulkPdu = Pdu.GetBulkPdu();
bulkPdu.VbList.Add(startOid);
// We don't need any NonRepeaters
bulkPdu.NonRepeaters = 0;
// Tune MaxRepetitions to the number best suited to retrive the data
bulkPdu.MaxRepetitions = 100;
// Current OID will keep track of the last retrieved OID and be used as
// indication that we have reached end of table
Oid curOid = (Oid)startOid.Clone();
// Keep looping through results until end of table
while (startOid.IsRootOf(curOid))
{
SnmpPacket res = null;
try
{
res = target.Request(bulkPdu, param);
}
catch (Exception ex)
{
Console.WriteLine("Request failed: {0}", ex.Message);
target.Close();
return;
}
// For GetBulk request response has to be version 2
if (res.Version != SnmpVersion.Ver2)
{
Console.WriteLine("Received wrong SNMP version response packet.");
target.Close();
return;
}
// Check if there is an agent error returned in the reply
if (res.Pdu.ErrorStatus != 0)
{
Console.WriteLine("SNMP agent returned error {0} for request Vb index {1}",
res.Pdu.ErrorStatus, res.Pdu.ErrorIndex);
target.Close();
return;
}
// Go through the VbList and check all replies
foreach (Vb v in res.Pdu.VbList)
{
curOid = (Oid)v.Oid.Clone();
// VbList could contain items that are past the end of the requested table.
// Make sure we are dealing with an OID that is part of the table
if (startOid.IsRootOf(v.Oid))
{
// Get child Id's from the OID (past the table.entry sequence)
uint[] childOids = Oid.GetChildIdentifiers(startOid, v.Oid);
// Get the value instance and converted it to a dotted decimal
// string to use as key in result dictionary
uint[] instance = new uint[childOids.Length - 1];
Array.Copy(childOids, 1, instance, 0, childOids.Length - 1);
String strInst = InstanceToString(instance);
// Column id is the first value past <table oid>.entry in the response OID
uint column = childOids[0];
if (!tableColumns.Contains(column))
tableColumns.Add(column);
if (result.ContainsKey(strInst))
{
result[strInst][column] = (AsnType)v.Value.Clone();
}
else
{
result[strInst] = new Dictionary<uint, AsnType>();
result[strInst][column] = (AsnType)v.Value.Clone();
}
}
else
{
// We've reached the end of the table. No point continuing the loop
break;
}
}
// If last received OID is within the table, build next request
if (startOid.IsRootOf(curOid))
{
bulkPdu.VbList.Clear();
bulkPdu.VbList.Add(curOid);
bulkPdu.NonRepeaters = 0;
bulkPdu.MaxRepetitions = 100;
}
}
target.Close();
if (result.Count <= 0)
{
Console.WriteLine("No results returned.\n");
}
else
{
Console.Write("Instance");
foreach (uint column in tableColumns)
{
Console.Write("\tColumn id {0}", column);
}
Console.WriteLine("");
foreach (KeyValuePair<string, Dictionary<uint, AsnType>> kvp in result)
{
Console.Write("{0}", kvp.Key);
foreach (uint column in tableColumns)
{
if (kvp.Value.ContainsKey(column))
{
Console.Write("\t{0} ({1})", kvp.Value[column].ToString(),
SnmpConstants.GetTypeName(kvp.Value[column].Type));
}
else
{
Console.Write("\t-");
}
}
Console.WriteLine("");
}
}
}
static void remoteCall(string[] args)
{
// SNMP community name
OctetString community = new OctetString("public");
// Define agent parameters class
AgentParameters param = new AgentParameters(community);
// Set SNMP version to 2 (GET-BULK only works with SNMP ver 2 and 3)
param.Version = SnmpVersion.Ver2;
// 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("127.0.0.1");
// Construct target
UdpTarget target = new UdpTarget((IPAddress)agent, 161, 2000, 1);
// Define Oid that is the root of the MIB
// tree you wish to retrieve
Oid rootOid = new Oid("1.3.6.1.2.1.2.2.1.2"); // 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());
if (v.Value.Type == SnmpConstants.SMI_ENDOFMIBVIEW)
lastOid = null;
else
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.Close();
}
private List <SnmpResult <int, long> > ProcessTargetsTraffic(SnmpTarget snmpTarget, string snmpOid,
string communityString = "public")
{
var results = new List <SnmpResult <int, long> >();
var community = new OctetString(communityString);
var param = new AgentParameters(community)
{
Version = SnmpVersion.Ver2
};
var agent = new IpAddress(snmpTarget.IpAddress);
var target = new UdpTarget((IPAddress)agent, 161, 2000, 1);
var rootOid = new Oid(snmpOid);
var lastOid = (Oid)rootOid.Clone();
var pdu = new Pdu(PduType.GetBulk)
{
NonRepeaters = 0, MaxRepetitions = 5
};
while (lastOid != null)
{
if (pdu.RequestId != 0)
{
pdu.RequestId += 1;
}
pdu.VbList.Clear();
pdu.VbList.Add(lastOid);
var result = (SnmpV2Packet)target.Request(pdu, param);
if (result != null)
{
if (result.Pdu.ErrorStatus != 0)
{
Console.WriteLine("Error in SNMP reply. Error {0} index {1}",
result.Pdu.ErrorStatus,
result.Pdu.ErrorIndex);
break;
}
foreach (var v in result.Pdu.VbList)
{
var current = new SnmpResult <int, long>();
if (rootOid.IsRootOf(v.Oid))
{
Console.WriteLine("{0} ({1}): {2}",
v.Oid,
SnmpConstants.GetTypeName(v.Value.Type),
v.Value);
current.Result = Convert.ToInt64(v.Value.ToString());
current.Identifier = Convert.ToInt32(v.Oid.ToString().Split('.').Last());
current.Oid = v.Oid.ToString();
current.SnmpTarget = snmpTarget;
results.Add(current);
lastOid = v.Value.Type == SnmpConstants.SMI_ENDOFMIBVIEW ? null : v.Oid;
}
else
{
lastOid = null;
}
}
}
else
{
Console.WriteLine("No response received from SNMP agent.");
}
}
target.Close();
return(results);
}
private void cbbSelectEquip_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
Equipment equip = (sender as ComboBox).SelectedItem as Equipment;
string equipName = equip.Name;
int equipID = equip.Index;
IpAddress agentIP = null;
try
{
object strIP = App.DBHelper.returnScalar(string.Format("SELECT IP_Address FROM IPAddress WHERE(IP_EquipID = {0}) AND (IP_IsDefaultIP = 1)", equipID));
if (strIP == null)
{
MessageBox.Show("数据库中没有" + equipName + "的默认管理IP地址");
return;
}
if (IpAddress.IsIP(strIP.ToString()))
{
agentIP = new IpAddress(strIP.ToString());
}
else
{
MessageBox.Show("地址格式错误");
return;
}
}
catch
{
MessageBox.Show("读取数据库出现错误\n" + e.ToString());
}
OctetString community = new OctetString("public");
AgentParameters param = new AgentParameters(community);
// Set SNMP version to 2 (GET-BULK only works with SNMP ver 2 and 3)
param.Version = SnmpVersion.Ver2;
// Construct target
UdpTarget target = new UdpTarget((IPAddress)agentIP, 161, 2000, 1);
// Define Oid that is the root of the MIB
// tree you wish to retrieve
Oid rootOid1 = new Oid("1.3.6.1.2.1.2.2.1.1"); // ifIndex
Oid rootOid2 = new Oid("1.3.6.1.2.1.2.2.1.2"); // ifDescr
// This Oid represents last Oid returned by
// the SNMP agent
Oid lastOid1 = (Oid)rootOid1.Clone();
Oid lastOid2 = (Oid)rootOid2.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 (lastOid1 != null && lastOid2 != 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(lastOid1);
pdu.VbList.Add(lastOid2);
// 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);
MessageBox.Show(string.Format("SNMP应答数据包中有错误。 Error {0} index {1}", result.Pdu.ErrorStatus, result.Pdu.ErrorIndex));
lastOid1 = null;
lastOid2 = 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 (rootOid1.IsRootOf(v.Oid))
{
if (v.Value.Type == SnmpConstants.SMI_ENDOFMIBVIEW)
{
lastOid1 = null;
}
else
{
lastOid1 = v.Oid;
}
var f = v.Value;
//Interface interface = new Interface(v.Value.,)
}
else if (rootOid2.IsRootOf(v.Oid))
{
if (v.Value.Type == SnmpConstants.SMI_ENDOFMIBVIEW)
{
lastOid2 = null;
}
else
{
lastOid2 = v.Oid;
}
var f = v.Value;
}
else
{
// we have reached the end of the requested
// MIB tree. Set lastOid to null and exit loop
lastOid1 = null;
lastOid2 = null;
}
// if (rootOid.IsRootOf(v.Oid))
// {
// Console.WriteLine("{0} ({1}): {2}",
// v.Oid.ToString(),
// SnmpConstants.GetTypeName(v.Value.Type),
// v.Value.ToString());
// if (v.Value.Type == SnmpConstants.SMI_ENDOFMIBVIEW)
// lastOid = null;
// else
// 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.Close();
}
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();
}
public void pobierzTabeleDoUsuniecia()
{
/*!
*Pobiera tabele SNMP.
*/
Dictionary<String, Dictionary<uint, AsnType>> tabela_rezultat = new Dictionary<string, Dictionary<uint, AsnType>>();
List<uint> tabeleKolumy = new List<uint>();
AgentParameters param = new AgentParameters(SnmpVersion.Ver2, new OctetString(community));
IpAddress peer = new IpAddress(host);
if (!peer.Valid)
{
Console.WriteLine("Zły adres.");
return;
}
UdpTarget target = new UdpTarget((IPAddress)peer);
Oid startOid = new Oid("1.3.6.1.2.1.6.13");
startOid.Add(1);
//przygotowanie zapytania
Pdu bulkPdu = Pdu.GetBulkPdu();
bulkPdu.VbList.Add(startOid);
bulkPdu.NonRepeaters = 0;
bulkPdu.MaxRepetitions = 100;
Oid curOid = (Oid)startOid.Clone();
while (startOid.IsRootOf(curOid))
{
SnmpPacket res = null;
try
{
res = target.Request(bulkPdu, param);
}
catch (Exception ex)
{
Console.WriteLine("Zapytanie nieudane {0}", ex.Message);
target.Close();
return;
}
if (res.Version != SnmpVersion.Ver2)
{
Console.WriteLine("Received wrong SNMP version response packet.");
target.Close();
return;
}
if (res.Pdu.ErrorStatus != 0)
{
Console.WriteLine("SNMP agent zwrócił błąd {0} dla zapytania {1}", res.Pdu.ErrorStatus, res.Pdu.ErrorIndex);
target.Close();
return;
}
foreach (Vb v in res.Pdu.VbList)
{
curOid = (Oid)v.Oid.Clone();
if (startOid.IsRootOf(v.Oid))
{
uint[] childOids = Oid.GetChildIdentifiers(startOid, v.Oid);
uint[] instance = new uint[childOids.Length - 1];
Array.Copy(childOids, 1, instance, 0, childOids.Length - 1);
String strInst = InstanceToString(instance);
uint column = childOids[0];
if (!tabeleKolumy.Contains(column))
tabeleKolumy.Add(column);
if (tabela_rezultat.ContainsKey(strInst))
{
tabela_rezultat[strInst][column] = (AsnType)v.Value.Clone();
}
else
{
tabela_rezultat[strInst] = new Dictionary<uint, AsnType>();
tabela_rezultat[strInst][column] = (AsnType)v.Value.Clone();
}
}
else
{
break; //bo koniec tabeli ;)
}
}
if (startOid.IsRootOf(curOid))
{
bulkPdu.VbList.Clear();
bulkPdu.VbList.Add(curOid);
bulkPdu.NonRepeaters = 0;
bulkPdu.MaxRepetitions = 100;
}
target.Close();
if (tabela_rezultat.Count <= 0)
{
Console.WriteLine("Żadnych rezlutatów nie zwrócono");
}
else
{
Console.WriteLine("Instance");
foreach (uint column in tabeleKolumy)
{
Console.Write("\tColumn id {0}", column);
}
Console.WriteLine("");
foreach (KeyValuePair<string, Dictionary<uint, AsnType>> kvp in tabela_rezultat)
{
Console.Write("{0}", kvp.Key);
foreach (uint column in tabeleKolumy)
{
if (kvp.Value.ContainsKey(column))
{
Console.Write("\t{0} ({1})", kvp.Value[column].ToString(), SnmpConstants.GetTypeName(kvp.Value[column].Type));
}
else
{
Console.Write("\t-");
}
}
Console.WriteLine("");
}
}
}
}
public PartialViewResult WalkSend(int?page, string presetName, string TowerName, string IP, string DeviceName)
{
Checked.Clear();
Time.Clear();
walkSearch.Clear();
SearchNameWalk = "";
if (presetName == "Preset")
{
PresetIND = 0;
walkList.Clear();
IPadrress = IP;
ViewBag.IP = IPadrress;
//var devicename = db.devicesTypes.Where(d => d.Name == DeviceName).FirstOrDefault();
//var walkOid = db.MibTreeInformations.Where(m => m.DeviceID == devicename.ID).FirstOrDefault();
//deviceTypeID = devicename.ID;
OctetString community = new OctetString("public");
AgentParameters param = new AgentParameters(community);
param.Version = SnmpVersion.Ver2;
IpAddress agent = new IpAddress("192.168.24.12");
UdpTarget target = new UdpTarget((IPAddress)agent, 161, 2000, 1);
Oid rootOid = new Oid(".1.3.6.1.4.1"); // ifDescr
//Oid rootOid = new Oid(".1.3.6.1.4.1.23180.2.1.1.1"); // ifDescr
Oid lastOid = (Oid)rootOid.Clone();
Pdu pdu = new Pdu(PduType.GetNext);
while (lastOid != null)
{
try {
if (pdu.RequestId != 0)
{
pdu.RequestId += 1;
}
pdu.VbList.Clear();
pdu.VbList.Add(lastOid);
SnmpV2Packet result = (SnmpV2Packet)target.Request(pdu, param);
if (result != null)
{
if (result.Pdu.ErrorStatus != 0)
{
lastOid = null;
break;
}
else
{
foreach (Vb v in result.Pdu.VbList)
{
if (rootOid.IsRootOf(v.Oid))
{
WalkDevice walk = new WalkDevice();
ID++;
walk.ID = ID;
walk.WalkID = ID;
string oid = "." + v.Oid.ToString();
var OidMibdescription = db.MibTreeInformations.Where(m => m.OID == oid).FirstOrDefault();
if (OidMibdescription == null)
{
oid = oid.Remove(oid.Length - 1);
oid = oid.Remove(oid.Length - 1);
OidMibdescription = db.MibTreeInformations.Where(o => o.OID == oid).FirstOrDefault();
}
if (OidMibdescription == null)
{
oid = oid.Remove(oid.Length - 1);
oid = oid.Remove(oid.Length - 1);
OidMibdescription = db.MibTreeInformations.Where(o => o.OID == oid).FirstOrDefault();
if (OidMibdescription != null)
{
walk.WalkDescription = OidMibdescription.Description;
}
}
else
{
walk.WalkDescription = OidMibdescription.Description;
}
if (OidMibdescription != null)
{
walk.WalkDescription = OidMibdescription.Description;
}
walk.WalkOID = v.Oid.ToString();
walk.Type = v.Value.ToString();
walk.value = SnmpConstants.GetTypeName(v.Value.Type);
walk.Time = 60;
walkList.Add(walk);
lastOid = v.Oid;
}
else
{
lastOid = null;
}
}
}
}
}
catch (Exception e) { }
}
target.Close();
}
else
{
var presetname = db.Presets.Where(p => p.PresetName == presetName).FirstOrDefault();
walkList = db.WalkDevices.Where(w => w.PresetID == presetname.ID).ToList();
}
//for (int i = 0; i < 120; i++)
//{
// WalkInformation walk = new WalkInformation();
// ID++;
// walk.ID = ID;
// walk.OIDName = "1.2.2.3.50.20.21.2.2.3.50.20.21.2.2.3.50.20.21.2.2.3.50.20.2";
// walk.Value = "mrt_____mrt_____mrt_____mrt_____mrt_____mrt_____";
// walk.Time = 60;
// walkList.Add(walk);
//}
EditInd = 0;
ViewBag.Edit = EditInd;
return(PartialView("_WalkView", walkList.ToPagedList(page ?? 1, viewSearch)));
}
public Tabela pobierzTabele()
{
/*!
*Pobiera tabele SNMP.
*/
Tabela tabela1 = new Tabela();
AgentParameters param = new AgentParameters(SnmpVersion.Ver2, new OctetString(community));
IpAddress peer = new IpAddress(host);
if (!peer.Valid)
{
Console.WriteLine("Zły adres.");
//return false;
}
UdpTarget target = new UdpTarget((IPAddress)peer);
Oid startOid = new Oid("1.3.6.1.2.1.6.13");
startOid.Add(1);
Pdu bulkPdu = Pdu.GetBulkPdu();
bulkPdu.VbList.Add(startOid);
bulkPdu.NonRepeaters = 0;
bulkPdu.MaxRepetitions = 100;
Oid curOid = (Oid)startOid.Clone();
while (startOid.IsRootOf(curOid))
{
SnmpPacket res = null;
try
{
res = target.Request(bulkPdu, param);
}
catch (Exception ex)
{
Console.WriteLine("Zapytanie nieudane {0}", ex.Message);
target.Close();
//return false;
}
if (res.Version != SnmpVersion.Ver2)
{
Console.WriteLine("Otrzymano inną wersję SNMP w odpowiedzi.");
target.Close();
//return false;
}
if (res.Pdu.ErrorStatus != 0)
{
Console.WriteLine("SNMP agent zwrócił błąd {0} dla zapytania {1}", res.Pdu.ErrorStatus, res.Pdu.ErrorIndex);
target.Close();
//return false;
}
foreach (Vb v in res.Pdu.VbList)
{
curOid = (Oid)v.Oid.Clone();
if (startOid.IsRootOf(v.Oid))
{
uint[] childOids = Oid.GetChildIdentifiers(startOid, v.Oid);
uint[] instance = new uint[childOids.Length - 1];
Array.Copy(childOids, 1, instance, 0, childOids.Length - 1);
String strInst = InstanceToString(instance);
uint column = childOids[0];
if (!tabelaKolumn.Contains(column))
tabelaKolumn.Add(column);
if (slownikRezultatu.ContainsKey(strInst))
{
slownikRezultatu[strInst][column] = (AsnType)v.Value.Clone();
}
else {
slownikRezultatu[strInst] = new Dictionary<uint, AsnType>();
slownikRezultatu[strInst][column] = (AsnType)v.Value.Clone();
}
}
else {
break;
}
}
if (startOid.IsRootOf(curOid))
{
bulkPdu.VbList.Clear();
bulkPdu.VbList.Add(curOid);
bulkPdu.NonRepeaters = 0;
bulkPdu.MaxRepetitions = 100;
}
}
target.Close();
if (slownikRezultatu.Count <= 0)
{
//Console.WriteLine("Żadnych rezlutatów nie zwrócono");
//return false;
}
else {
//return true;
}
/*UFAM W TABELE, ŻE SŁOWNIK NIE ODWRÓCI KOLEJNOŚCI I WALĘ NA OŚLEP KOLEJNE WARTOŚCI*/
foreach (KeyValuePair<string, Dictionary<uint, AsnType>> kvp in slownikRezultatu)
{
int i = 0;
tabela1.tcpAddress.Add(kvp.Key);
foreach (uint kolumna in tabelaKolumn)
{
if (kvp.Value.ContainsKey(kolumna))
{
if (i == 0)
tabela1.tcpConnLocalAddress.Add(kvp.Value[kolumna].ToString());
else if (i == 1)
tabela1.tcpConnLocalPort.Add(kvp.Value[kolumna].ToString());
else if (i == 2)
tabela1.tcpConnRemAddress.Add(kvp.Value[kolumna].ToString());
else if (i == 3)
tabela1.tcpConnRemPort.Add(kvp.Value[kolumna].ToString());
else if (i == 4)
tabela1.tcpConnState.Add(kvp.Value[kolumna].ToString());
i++;
}
}
}
/*/BUDOWA DRZEWA
foreach (KeyValuePair<string,Dictionary<uint,AsnType>> kvp in slownikRezultatu)
{
tabela1.tcpAddress.Add(kvp.Key);
tabela1.tcpConnLocalAddress.Add(kvp.Value[0].ToString());
tabela1.tcpConnLocalPort.Add(kvp.Value[1].ToString());
tabela1.tcpConnRemAddress.Add(kvp.Value[2].ToString());
tabela1.tcpConnRemPort.Add(kvp.Value[3].ToString());
tabela1.tcpConnState.Add(kvp.Value[4].ToString());
}*/
return tabela1;
}
//v2の時
private int getBulk(AgentParameters param, Form_snmpDataGet form)
{
try {
int ret = 0;
//結果格納
resultHashL = new List <Dictionary <string, string> >();
_headerList = new List <string>();
tablearray = new Dictionary <string, List <string> >();
int flg = 0;
IpAddress agent = new IpAddress(INPUT.hostname);
UdpTarget target = new UdpTarget((IPAddress)agent, 161, 5000, 1); // アドレス ポート 待ち時間 リトライ
Oid rootOid = new Oid(INPUT.oid);
Oid lastOid = (Oid)rootOid.Clone();
// Pdu class used for all requests
Pdu pdu = new Pdu(PduType.GetBulk);
pdu.NonRepeaters = 0;
pdu.MaxRepetitions = 50;
// Loop through results
while (lastOid != null)
{
System.Windows.Forms.Application.DoEvents();
if (form.cancelflg)
{
//中断された時
form.cancelflg = false;
break;
}
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
System.Threading.Thread.Sleep(15);
SnmpV2Packet result = (SnmpV2Packet)target.Request(pdu, param);
//Console.WriteLine("{0} {1} ", result.Pdu.ErrorStatus,result.Pdu.ErrorIndex);
// 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
Errormsg = string.Format("Error in SNMP reply. Error {0} index {1}",
result.Pdu.ErrorStatus,
result.Pdu.ErrorIndex);
lastOid = null;
ret = -1;
break;
}
else
{
int i = 0;
// 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))
{
//tableget
//値の取得
Dictionary <string, string> hashtbl = new Dictionary <string, string>();
if (INPUT.method == 3)
{
//テーブル用データの取得
getForTable(v, ref flg);
}
else
{
hashtbl["oid"] = v.Oid.ToString();
hashtbl["type"] = SnmpConstants.GetTypeName(v.Value.Type);
//ifdescの時日本語の可能性あり
//1.3.6.1.2.1.2.2.1.2 ifdesc
//1.3.6.1.2.1.25.3.2.1.3. hrDeviceDescr
if (0 <= v.Oid.ToString().IndexOf("1.3.6.1.2.1.2.2.1.2.") | 0 <= v.Oid.ToString().IndexOf("1.3.6.1.2.1.25.3.2.1.3."))
{
hashtbl["value"] = convertJP(v.Value.ToString());
}
else
{
if (0 <= v.Oid.ToString().IndexOf("1.3.6.1.2.1.2.2.1.3."))
{
hashtbl["value"] = Util.ifTypeConv(v.Value.ToString());
}
else if (0 <= v.Oid.ToString().IndexOf("1.3.6.1.2.1.2.2.1.7.") | 0 <= v.Oid.ToString().IndexOf("1.3.6.1.2.1.2.2.1.8."))
{
hashtbl["value"] = Util.convIfStatus(v.Value.ToString());
}
else
{
string value = v.Value.ToString();
//TimeTick型の時はミリ秒も出力する
if (hashtbl["type"] == SnmpConstants.SMI_TIMETICKS_STR)
{
TimeTicks timeti = (TimeTicks)v.Value;
value = "(" + timeti.Milliseconds.ToString() + "ms)" + v.Value.ToString();
}
hashtbl["value"] = value;
}
}
//リストに格納
resultHashL.Add(hashtbl);
}
if (v.Value.Type == SnmpConstants.SMI_ENDOFMIBVIEW)
{
lastOid = null;
}
else
{
lastOid = v.Oid;
}
}
else
{
// we have reached the end of the requested
// MIB tree. Set lastOid to null and exit loop
lastOid = null;
}
i++;
}
}
}
else
{
Console.WriteLine("No response received from SNMP agent.");
}
}
target.Close();
return(ret);
}
catch {
throw;
}
}
public static void SNMPTestConcepto()
{
int _NumEntries = 0;
// SNMP community name
OctetString community = new OctetString("public");
// Define agent parameters class
AgentParameters param = new AgentParameters(community);
// Set SNMP version to 2 (GET-BULK only works with SNMP ver 2 and 3)
param.Version = SnmpVersion.Ver2;
// 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("192.168.1.42");
// Construct target
UdpTarget target = new UdpTarget((IPAddress)agent, 161, 2000, 1);
// Define Oid that is the root of the MIB
// tree you wish to retrieve
//Oid rootOid = new Oid("1.3.6.1.2.1.2.2.1.2"); // ifDescr
//Oid rootOid = new Oid("1.3.6.1.2.1.17.4.3.1"); // conexiones bridge
Oid rootOid = new Oid("1.3.6.1.2.1"); // TEST
// 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());
_NumEntries++;
if (v.Value.Type == SnmpConstants.SMI_ENDOFMIBVIEW)
lastOid = null;
else
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.Close();
Console.WriteLine("Número entradas: {0}", _NumEntries);
}
/// <summary>
/// Walks an SNMP mib table displaying the results on the fly (unless otherwise desired)
/// </summary>
/// <param name="log_options">Logging options</param>
/// <param name="ip">IPAddress of device to walk</param>
/// <param name="in_community">Read-community of device to walk</param>
/// <param name="start_oid">Start OID (1.3, etc)</param>
/// <returns></returns>
public static List<SnmpV1Packet> MibWalk(LOG_OPTIONS log_options, IPAddress ip, string in_community, string start_oid)
{
stop = false;
List<SnmpV1Packet> packets = new List<SnmpV1Packet>();
// SNMP community name
OctetString community = new OctetString(in_community);
// Define agent parameters class
AgentParameters param = new AgentParameters(community);
// Set SNMP version to 1
param.Version = SnmpVersion.Ver1;
// Construct target
UdpTarget target = new UdpTarget(ip, 161, 2000, 1);
// Define Oid that is the root of the MIB
// tree you wish to retrieve
Oid rootOid = new Oid(start_oid); // 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.GetNext);
// Loop through results
while (lastOid != null)
{
// When Pdu class is first constructed, RequestId is set to a random value
// that needs to be incremented on subsequent requests made using the
// same instance of the Pdu class.
if (pdu.RequestId != 0)
{
pdu.RequestId += 1;
}
if (stop)
{
return packets;
}
// Clear Oids from the Pdu class.
pdu.VbList.Clear();
// Initialize request PDU with the last retrieved Oid
pdu.VbList.Add(lastOid);
// Make SNMP request
SnmpV1Packet result = (SnmpV1Packet)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
packets.Add(result);
if (result.Pdu.ErrorStatus != 0)
{
// agent reported an error with the request
Logger.Write(log_options, module, "Error in SNMP reply. Error " + result.Pdu.ErrorStatus + " index " + 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))
{
Logger.Write(log_options, module, 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.Close();
return packets;
}
public void GetTable(string OID)
{
this.param.Version = SnmpVersion.Ver2;
Oid startOid = new Oid(OID);
startOid.Add(1);
Console.WriteLine(startOid);
Pdu bulkPdu = Pdu.GetBulkPdu();
bulkPdu.VbList.Add(startOid);
bulkPdu.NonRepeaters = 0;
bulkPdu.MaxRepetitions = 100;
Oid curOid = (Oid)startOid.Clone();
while (startOid.IsRootOf(curOid))
{
SnmpPacket res = null;
try
{
res = target.Request(bulkPdu, param);
}
catch (Exception ex)
{
Console.WriteLine("Request failed: {0}", ex.Message);
target.Close();
return;
}
if (res.Version != SnmpVersion.Ver2)
{
Console.WriteLine("Received wrong SNMP version response packet.");
target.Close();
return;
}
if (res.Pdu.ErrorStatus != 0)
{
Console.WriteLine("SNMP agent returned error {0} for request Vb index {1}",
res.Pdu.ErrorStatus, res.Pdu.ErrorIndex);
target.Close();
return;
}
foreach (Vb v in res.Pdu.VbList)
{
curOid = (Oid)v.Oid.Clone();
if (startOid.IsRootOf(v.Oid))
{
uint[] childOids = Oid.GetChildIdentifiers(startOid, v.Oid);
uint[] instance = new uint[childOids.Length - 1];
Array.Copy(childOids, 1, instance, 0, childOids.Length - 1);
String strInst = InstanceToString(instance);
uint column = childOids[0];
if (!tableColumns.Contains(column))
{
tableColumns.Add(column);
}
if (results.ContainsKey(strInst))
{
results[strInst][column] = (AsnType)v.Value.Clone();
}
else
{
results[strInst] = new Dictionary <uint, AsnType>();
results[strInst][column] = (AsnType)v.Value.Clone();
}
}
else
{
break;
}
}
if (startOid.IsRootOf(curOid))
{
bulkPdu.VbList.Clear();
bulkPdu.VbList.Add(curOid);
bulkPdu.NonRepeaters = 0;
bulkPdu.MaxRepetitions = 100;
}
}
}
public static void TestOidCollection()
{
int i;
OidCollection c = new OidCollection();
Assert.Equal(0, c.Count);
Oid o0 = new Oid(SHA1_Oid, SHA1_Name);
i = c.Add(o0);
Assert.Equal(0, i);
Oid o1 = new Oid(SHA256_Oid, SHA256_Name);
i = c.Add(o1);
Assert.Equal(1, i);
Assert.Equal(2, c.Count);
Assert.Same(o0, c[0]);
Assert.Same(o1, c[1]);
Assert.Throws <ArgumentOutOfRangeException>(() => GC.KeepAlive(c[-1]));
Assert.Throws <ArgumentOutOfRangeException>(() => GC.KeepAlive(c[c.Count]));
Oid o2 = new Oid(SHA1_Oid, SHA1_Name);
i = c.Add(o2);
Assert.Equal(2, i);
// If there multiple matches, the one with the lowest index wins.
Assert.Same(o0, c[SHA1_Name]);
Assert.Same(o0, c[SHA1_Oid]);
Assert.Same(o1, c[SHA256_Name]);
Assert.Same(o1, c[SHA256_Oid]);
Oid o3 = new Oid(null, null);
i = c.Add(o3);
Assert.Equal(3, i);
Assert.Throws <ArgumentNullException>(() => GC.KeepAlive(c[null]));
Object o = c["BOGUSBOGUS"];
Assert.Null(c["BOGUSBOGUS"]);
Oid[] a = new Oid[10];
for (int j = 0; j < a.Length; j++)
{
a[j] = new Oid(null, null);
}
Oid[] a2 = (Oid[])(a.Clone());
c.CopyTo(a2, 3);
Assert.Equal(a[0], a2[0]);
Assert.Equal(a[1], a2[1]);
Assert.Equal(a[2], a2[2]);
Assert.Equal(o0, a2[3]);
Assert.Equal(o1, a2[4]);
Assert.Equal(o2, a2[5]);
Assert.Equal(o3, a2[6]);
Assert.Equal(a[7], a2[7]);
Assert.Equal(a[8], a2[8]);
Assert.Equal(a[9], a2[9]);
Assert.Throws <ArgumentNullException>(() => c.CopyTo(null, 0));
Assert.Throws <ArgumentNullException>(() => c.CopyTo(null, -1));
Assert.Throws <ArgumentOutOfRangeException>(() => c.CopyTo(a, -1));
Assert.Throws <ArgumentException>(() => c.CopyTo(a, 7));
Assert.Throws <ArgumentOutOfRangeException>(() => c.CopyTo(a, 1000));
ICollection ic = c;
Assert.Throws <ArgumentException>(() => ic.CopyTo(new Oid[4, 3], 0));
Assert.Throws <InvalidCastException>(() => ic.CopyTo(new string[100], 0));
return;
}
public SNMPResultSet[] Walk(string pOID)
{
List <SNMPResultSet> snmpResults = new List <SNMPResultSet>();
// Define agent parameters class
AgentParameters param = new AgentParameters(new OctetString(CommunityName));
// Set SNMP version to 2 (GET-BULK only works with SNMP ver 2 and 3)
param.Version = SnmpVersion.Ver2;
// Construct target
UdpTarget target = new UdpTarget((IPAddress)AgentIP, 161, 2000, 1);
// Define Oid that is the root of the MIB
// tree you wish to retrieve
Oid rootOid = new Oid(pOID); // 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))
{
snmpResults.Add(new SNMPResultSet(v.Oid.ToString(), SnmpConstants.GetTypeName(v.Value.Type), v.Value.ToString()));
if (v.Value.Type == SnmpConstants.SMI_ENDOFMIBVIEW)
{
lastOid = null;
}
else
{
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.Close();
return(snmpResults.ToArray());
}
/// <summary>
/// 由表中一列的OID来获取整列的值集合,若出错，返回null，一般用来获取表格的索引列
/// </summary>
/// <param name="agentIP">目标IP地址</param>
/// <param name="_rootOid">此列的OID</param>
/// <param name="errorMessage">输出错误信息，若没有错误，返回空字符串</param>
/// <returns>返回字符串集合，之后自行根据此列类型进行转换，若出错，返回null</returns>
public static List <string> GetSingleColumnListFromTable(IpAddress agentIP, Oid rootOid, out string errorMessage)
{
OctetString community = new OctetString(App.snmpCommunity);
AgentParameters param = new AgentParameters(community);
param.DisableReplySourceCheck = !App.snmpCheckSrcFlag;
// Set SNMP version to 2 (GET-BULK only works with SNMP ver 2 and 3)
param.Version = SnmpVersion.Ver2;
// Construct target
UdpTarget target = new UdpTarget((IPAddress)agentIP, App.snmpPort, App.snmpTimeout, App.snmpRetry);
// Define Oid that is the root of the MIB
// tree you wish to retrieve
//Oid rootOid = rootOid;
// 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;
List <string> resultList = new List <string>();
// 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 = null;
try
{
result = (SnmpV2Packet)target.Request(pdu, param);
}
catch (Exception ex)
{
errorMessage = "获取SNMP应答出现错误;" + ex.Message;
target.Close();
return(null);
}
// 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
lastOid = null;
errorMessage = string.Format("SNMP应答数据包中有错误。 Error {0} index {1}", result.Pdu.ErrorStatus, result.Pdu.ErrorIndex);
return(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))
{
if (v.Value.Type == SnmpConstants.SMI_ENDOFMIBVIEW)
{
lastOid = null;
}
else
{
lastOid = v.Oid;
}
resultList.Add(v.Value.ToString());
}
else
{
// we have reached the end of the requested
// MIB tree. Set lastOid to null and exit loop
lastOid = null;
break; // 每个数据包获取5个值，一旦有一个不是这一列的数据，后面的应该都不是了
}
}
}
}
else
{
errorMessage = "指定网管代理未返回有效信息";
return(null);
}
}
target.Close();
errorMessage = "";
return(resultList);
}
/// <summary>
/// Construct Vb with the supplied OID and Null value
/// </summary>
/// <param name="oid">OID</param>
public Vb(Oid oid)
: this()
{
_oid = (Oid)oid.Clone();
_value = new Null();
}