/// <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);
}
/// <summary>
/// Executa uma requisição do tipo Set
/// </summary>
/// <param name="setValue">Valor a set definido</param>
public void Send(AsnType setValue)
{
using (var target = new UdpTarget(Host.IP, Host.Port, TimeOut, Retries))
{
var agentp = new AgentParameters(SnmpVersion.Ver2, new OctetString(Host.Community));
// Caso necessario, appenda o .0 na requisição
var oid = new Oid(Object.OID);
if (oid[oid.Length - 1] != 0)
{
oid.Add(0);
}
// Cria pacote de dados
RequestData = new Pdu(setValue == null ? PduType.Get : PduType.Set);
// Adiciona dados da requisição
switch (RequestData.Type)
{
case PduType.Get:
RequestData.VbList.Add(oid);
break;
case PduType.Set:
RequestData.VbList.Add(oid, setValue);
break;
default:
throw new InvalidOperationException("unsupported");
}
try
{
if (LogRequests)
{
Logger.Self.Log(this);
}
Timestamp = DateTime.Now;
// Envia requisição
ResponsePacket = target.Request(RequestData, agentp) as SnmpV2Packet;
// Trata resposta
if (ResponsePacket != null && ResponsePacket.Pdu.ErrorStatus == (int)PduErrorStatus.noError)
{
// TODO: suportar mais de um retorno
var item = ResponsePacket.Pdu.VbList[0];
ResponseValue = item.Value;
if (LogRequests)
{
Logger.Self.Log(item);
}
}
}
catch (Exception ex)
{
if (LogRequests)
{
Logger.Self.Log(ex);
}
throw new SnmpException("Não foi possível realizar a operação");
}
}
}
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;
}
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("");
}
}
}
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 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("");
}
}
}
}
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);
}
}
}
}
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();
}
}
}
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 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>
/// Executa uma requisição do tipo Set
/// </summary>
/// <param name="setValue">Valor a set definido</param>
public void Send(AsnType setValue)
{
using (var target = new UdpTarget(Host.IP, Host.Port, TimeOut, Retries))
{
var agentp = new AgentParameters(SnmpVersion.Ver2, new OctetString(Host.Community));
// Caso necessario, appenda o .0 na requisição
var oid = new Oid(Object.OID);
if (oid[oid.Length - 1] != 0)
oid.Add(0);
// Cria pacote de dados
RequestData = new Pdu(setValue == null ? PduType.Get : PduType.Set);
// Adiciona dados da requisição
switch (RequestData.Type)
{
case PduType.Get:
RequestData.VbList.Add(oid);
break;
case PduType.Set:
RequestData.VbList.Add(oid, setValue);
break;
default:
throw new InvalidOperationException("unsupported");
}
try
{
if (LogRequests) Logger.Self.Log(this);
Timestamp = DateTime.Now;
// Envia requisição
ResponsePacket = target.Request(RequestData, agentp) as SnmpV2Packet;
// Trata resposta
if (ResponsePacket != null && ResponsePacket.Pdu.ErrorStatus == (int)PduErrorStatus.noError)
{
// TODO: suportar mais de um retorno
var item = ResponsePacket.Pdu.VbList[0];
ResponseValue = item.Value;
if (LogRequests) Logger.Self.Log(item);
}
}
catch (Exception ex)
{
if (LogRequests) Logger.Self.Log(ex);
throw new SnmpException("Não foi possível realizar a operação");
}
}
}
