private void loadDataResponse()
{
this.miThreadState = 1;
while (this.miThreadState != 0)
{
try
{
Dictionary <Oid, AsnType> dicOID = (Dictionary <Oid, AsnType>) this.mgResponseQueue.Dequeue();
if (dicOID != null)
{
foreach (Oid oid in dicOID.Keys)
{
AsnType asnType = dicOID[oid];
appendRowSNMP(dgvSNMPListValue, new object[]
{
this.dgvSNMPListValue.Rows.Count + 1,
oid.ToString(),
asnType.ToString(),
});
}
}
}
catch (Exception exp)
{
Console.WriteLine(exp.Message);
}
Thread.Sleep(200);
}
}
public static TimeSpan GetTimeSpan(AsnType obj, TimeSpan defaultValue)
{
if (obj is TimeTicks tt)
{
return((TimeSpan)tt);
}
return(defaultValue);
}
public static int GetInteger(AsnType obj, int defaultValue)
{
if (obj.Type == AsnType.INTEGER)
{
return(((Integer32)obj).Value);
}
return(defaultValue);
}
/// <summary>
/// Convert an AsnType value into an integer.
/// </summary>
/// <param name="value">The AsnType value to be converted.</param>
/// <returns>An integer representation of <paramref name="value"/>, otherwise '-2' indicating 'unknown'.</returns>
public static int ToInt(this AsnType value)
{
int result;
//Convert value to a string
//Return the parsed integer if the string can be parsed as an integer, otherwise -2 (reasons above)
return(int.TryParse(value.ToString(), out result) ? result : -2);
}
public static uint GetUnsignedInteger(AsnType obj, uint defaultValue)
{
if (obj is Counter32 c)
{
return(c.Value);
}
return(defaultValue);
}
private static AsnType CreateOctetString(AsnType value)
{
if (IsEmpty(value))
{
return(new AsnType(0x04, 0x00));
}
return(new AsnType(0x04, value.GetBytes()));
}
private static bool IsEmpty(AsnType value)
{
if (null == value)
{
return(true);
}
return(false);
}
private static AsnType CreateBitString(AsnType value)
{
if (IsEmpty(value))
{
return(new AsnType(0x03, EMPTY));
}
return(CreateBitString(value.GetBytes(), 0x00));
}
private byte[] PublicKeyToX509(RSAParameters publicKey)
{
AsnType oid = AsnType.CreateOid("1.2.840.113549.1.1.1");
AsnType algorithmID = AsnType.CreateSequence(new AsnType[] { oid, AsnType.CreateNull() });
AsnType n = AsnType.CreateIntegerPos(publicKey.Modulus);
AsnType e = AsnType.CreateIntegerPos(publicKey.Exponent);
AsnType key = AsnType.CreateBitString(AsnType.CreateSequence(new AsnType[] { n, e }));
AsnType publicKeyInfo = AsnType.CreateSequence(new AsnType[] { algorithmID, key });
return(new AsnMessage(publicKeyInfo.GetBytes(), "X.509").GetBytes());
}
/// <summary>
/// 转化消息，转化时间刻度
/// </summary>
/// <param name="asnType"></param>
/// <returns></returns>
public static string ConvertTo(AsnType asnType)
{
Type type = asnType.GetType();
if (type.Equals(typeof(TimeTicks)))
{
return(((TimeTicks)asnType).Miliseconds.ToString());
}
else
{
return(ConvertTo(asnType.ToString()).Replace(",", "_"));
}
}
/// <summary>
/// SET class value from another Integer32 class cast as <see cref="AsnType"/>.
/// </summary>
/// <param name="value">Integer32 class cast as <see cref="AsnType"/></param>
/// <exception cref="ArgumentException">Argument is not Integer32 type.</exception>
public void Set(AsnType value)
{
Integer32 val = value as Integer32;
if (val != null)
{
this.value = val.Value;
}
else
{
throw new ArgumentException("Invalid argument type.");
}
}
/// <summary>SET class value from another Counter64 class cast as <seealso cref="AsnType"/>.</summary>
/// <param name="value">Counter64 class cast as <seealso cref="AsnType"/></param>
/// <exception cref="ArgumentException">Argument is not Counter64 type.</exception>
public void Set(AsnType value)
{
Counter64 val = value as Counter64;
if (val != null)
{
this.value = val.Value;
}
else
{
throw new ArgumentException("Invalid argument type.");
}
}
/// <summary>SET class value from another UInteger32 or Integer32 class cast as <seealso cref="AsnType"/>.</summary>
/// <param name="value">UInteger32 class cast as <seealso cref="AsnType"/></param>
/// <exception cref="ArgumentNullException">Parameter is null.</exception>
public void Set(AsnType value)
{
if (value == null)
{
throw new ArgumentNullException("value", "Parameter is null");
}
if (value is UInteger32)
{
this.value = ((UInteger32)value).Value;
}
else if (value is Integer32)
{
this.value = (uint)((Integer32)value).Value;
}
}
/// <summary>
/// Converts the
/// </summary>
/// <param name="asnType">The <see cref="AsnType" /> to convert.</param>
/// <param name="converted">Returs the integer representation of the <see cref="AsnType" />.</param>
/// <returns><c>true</c> if the conversion was successful. Otherwise <c>false</c>.</returns>
public static bool TryToInt(this AsnType asnType, out int converted)
{
if (asnType == null)
{
throw new ArgumentNullException(nameof(asnType), "The AsnType to convert to Integer is null");
}
converted = int.MinValue;
if (!int.TryParse(asnType.ToString(), out converted))
{
log.Warn($"Cannot convert an ASN Type '{SnmpConstants.GetTypeName(asnType.Type)}' of value '{asnType.ToString()}' to an integer: Value malformatted or out of range");
return(false);
}
return(true);
}
/// <summary>
/// Converts the
/// </summary>
/// <param name="asnType">The <see cref="AsnType" /> to convert.</param>
/// <returns>Integer representation of the <see cref="AsnType" />.</returns>
public static int ToInt(this AsnType asnType)
{
if (asnType == null)
{
throw new ArgumentNullException(nameof(asnType), "The AsnType to convert to Integer is null");
}
int convertedValue;
if (!int.TryParse(asnType.ToString(), out convertedValue))
{
throw new HamnetSnmpException($"Cannot convert an ASN Type '{SnmpConstants.GetTypeName(asnType.Type)}' of value '{asnType.ToString()}' to an integer: Value malformatted or out of range");
}
return(convertedValue);
}
internal static byte[] PrivateKeyToPKCS8(RSAParameters privateKey)
{
AsnType n = CreateIntegerPos(privateKey.Modulus);
AsnType e = CreateIntegerPos(privateKey.Exponent);
AsnType d = CreateIntegerPos(privateKey.D);
AsnType p = CreateIntegerPos(privateKey.P);
AsnType q = CreateIntegerPos(privateKey.Q);
AsnType dp = CreateIntegerPos(privateKey.DP);
AsnType dq = CreateIntegerPos(privateKey.DQ);
AsnType iq = CreateIntegerPos(privateKey.InverseQ);
AsnType version = CreateInteger(new byte[] { 0 });
AsnType key = CreateOctetString(
CreateSequence(new AsnType[] { version, n, e, d, p, q, dp, dq, iq })
);
AsnType algorithmID = CreateSequence(new AsnType[] { CreateOid("1.2.840.113549.1.1.1"), CreateNull() });
AsnType privateKeyInfo = CreateSequence(new AsnType[] { version, algorithmID, key });
return(new AsnMessage(privateKeyInfo.GetBytes(), "PKCS#8").GetBytes());
}
/// <summary>
/// Decode received packet. This method overrides the base implementation that cannot be used with this type of the packet.
/// </summary>
/// <param name="buffer">Packet buffer</param>
/// <param name="length">Buffer length</param>
public override int Decode(byte[] buffer, int length)
{
int offset = 0;
MutableByte buf = new MutableByte(buffer, length);
offset = base.Decode(buffer, length);
// parse community
offset = _snmpCommunity.Decode(buf, offset);
// look ahead to make sure this is a TRAP packet
int tmpOffset = offset;
byte tmpAsnType = AsnType.ParseHeader(buffer, ref tmpOffset, out int headerLen);
if (tmpAsnType != (byte)PduType.Trap)
{
throw new SnmpException(string.Format("Invalid SNMP ASN.1 type. Received: {0:x2}", tmpAsnType));
}
// decode protocol data unit
offset = Pdu.Decode(buf, offset);
return(offset);
}
private void configPduVb(LeafVarBinding leafVb, Pdu pdu)
{
System.Collections.Generic.IEnumerator <string> enumerator = leafVb.VarBindings.Keys.GetEnumerator();
while (enumerator.MoveNext())
{
string current = enumerator.Current;
if (pdu.Type == PduType.Set)
{
object obj = leafVb.VarBindings[current];
AsnType value = null;
if (obj is string)
{
value = new OctetString(System.Convert.ToString(obj));
}
else
{
if (obj is int)
{
value = new Integer32(System.Convert.ToInt32(obj));
}
else
{
if (obj is System.Net.IPAddress)
{
value = new IpAddress(obj as System.Net.IPAddress);
}
}
}
pdu.VbList.Add(new Oid(current), value);
}
else
{
pdu.VbList.Add(current);
}
}
}
/// <summary>
/// Gets the value.
/// </summary>
/// <param name="asnValue">The ASN value.</param>
/// <param name="targetType">Type of the value.</param>
/// <returns>.NET value compliant</returns>
private object GetValue(AsnType asnValue, Type targetType)
{
object value = asnValue;
switch (SnmpConstants.GetTypeName(asnValue.Type))
{
case "Integer32":
value = ((Integer32)value).Value;
break;
case "Gauge32":
value = ((Gauge32)value).Value;
break;
case "Counter32":
value = ((Counter32)value).Value;
break;
case "TimeTicks":
value = TimeSpan.FromMilliseconds(((TimeTicks)value).Milliseconds);
break;
case "IPAddress":
value = IPAddress.Parse(((IpAddress)value).ToString());
break;
case "OctetString":
value = asnValue.ToString();
if (targetType == typeof(DateTime))
{
value = ParseDateAndTime((string)value);
}
break;
}
return(value);
}
private static byte[] Concatenate(AsnType[] values)
{
// Nothing in, nothing out
if (IsEmpty(values))
return new byte[] { };
int length = 0;
foreach (AsnType t in values)
{
if (null != t)
{ length += t.GetBytes().Length; }
}
byte[] cated = new byte[length];
int current = 0;
foreach (AsnType t in values)
{
if (null != t)
{
byte[] b = t.GetBytes();
Array.Copy(b, 0, cated, current, b.Length);
current += b.Length;
}
}
return cated;
}
private static AsnType CreateBitString(AsnType value)
{
return(IsEmpty(value) ? new AsnType(0x03, empty) : CreateBitString(value.GetBytes()));
}
/// <summary>
/// <para>An ordered collection zero, one or more types.
/// Returns the AsnType representing an ASN.1 encoded sequence.</para>
/// <para>If the AsnType array is null or the array is 0 length,
/// an empty sequence (length 0) is returned.</para>
/// </summary>
/// <param name="values">An AsnType consisting of
/// the values in the collection to be encoded.</param>
/// <returns>Returns the AsnType representing an ASN.1
/// encoded sequence.</returns>
/// <seealso cref="CreateSet(AsnType)"/>
/// <seealso cref="CreateSet(AsnType[])"/>
/// <seealso cref="CreateSetOf(AsnType)"/>
/// <seealso cref="CreateSetOf(AsnType[])"/>
/// <seealso cref="CreateSequence(AsnType)"/>
/// <seealso cref="CreateSequence(AsnType[])"/>
/// <seealso cref="CreateSequenceOf(AsnType)"/>
/// <seealso cref="CreateSequenceOf(AsnType[])"/>
internal static AsnType CreateSequenceOf(AsnType[] values)
{
// From the ASN.1 Mailing List
if (IsEmpty(values))
{ return new AsnType(0x30, EMPTY); }
// Sequence: Tag 0x30 (16, Universal, Constructed)
return new AsnType(0x30, Concatenate(values));
}
/// <summary>
/// <para>An ordered collection of one or more types.
/// Returns the AsnType representing an ASN.1 encoded sequence.</para>
/// <para>If the AsnType is null, an
/// empty sequence (length 0) is returned.</para>
/// </summary>
/// <param name="values">An array of AsnType consisting of
/// the values in the collection to be encoded.</param>
/// <returns>Returns the AsnType representing an ASN.1
/// encoded Set.</returns>
/// <seealso cref="CreateSet(AsnType)"/>
/// <seealso cref="CreateSet(AsnType[])"/>
/// <seealso cref="CreateSetOf(AsnType)"/>
/// <seealso cref="CreateSetOf(AsnType[])"/>
/// <seealso cref="CreateSequence(AsnType)"/>
/// <seealso cref="CreateSequence(AsnType[])"/>
/// <seealso cref="CreateSequenceOf(AsnType)"/>
/// <seealso cref="CreateSequenceOf(AsnType[])"/>
internal static AsnType CreateSequence(AsnType[] values)
{
// Should be at least 1...
Debug.Assert(!IsEmpty(values));
// One or more required
if (IsEmpty(values))
{ throw new ArgumentException("A sequence requires at least one value."); }
// Sequence: Tag 0x30 (16, Universal, Constructed)
return new AsnType((0x10 | 0x20), Concatenate(values));
}
/// <summary>
/// An ordered sequence of zero, one or more octets. Returns
/// the byte[] representing an ASN.1 encoded octet string.
/// If octets is null or length is 0, an empty (0 length)
/// o ctet string is returned.
/// </summary>
/// <param name="values">An AsnType object to be encoded.</param>
/// <returns>Returns the AsnType representing an ASN.1
/// encoded octet string.</returns>
/// <seealso cref="CreateBitString(byte[])"/>
/// <seealso cref="CreateBitString(byte[], uint)"/>
/// <seealso cref="CreateBitString(AsnType)"/>
/// <seealso cref="CreateBitString(String)"/>
/// <seealso cref="CreateOctetString(byte[])"/>
/// <seealso cref="CreateOctetString(AsnType)"/>
/// <seealso cref="CreateOctetString(String)"/>
internal static AsnType CreateOctetString(AsnType[] values)
{
if (IsEmpty(values))
{
// Empty octet string
return new AsnType(0x04, 0x00);
}
// OctetString: Tag 0x04 (4, Universal, Primitive)
return new AsnType(0x04, Concatenate(values));
}
/// <summary>
/// An ordered sequence of zero, one or more octets. Returns
/// the byte[] representing an ASN.1 encoded octet string.
/// If octets is null or length is 0, an empty (0 length)
/// o ctet string is returned.
/// </summary>
/// <param name="value">An AsnType object to be encoded.</param>
/// <returns>Returns the AsnType representing an ASN.1
/// encoded octet string.</returns>
/// <seealso cref="CreateBitString(byte[])"/>
/// <seealso cref="CreateBitString(byte[], uint)"/>
/// <seealso cref="CreateBitString(AsnType)"/>
/// <seealso cref="CreateBitString(String)"/>
/// <seealso cref="CreateOctetString(byte[])"/>
/// <seealso cref="CreateOctetString(String)"/>
internal static AsnType CreateOctetString(AsnType value)
{
if (IsEmpty(value))
{
// Empty octet string
return new AsnType(0x04, 0x00);
}
// OctetString: Tag 0x04 (4, Universal, Primitive)
return new AsnType(0x04, value.GetBytes());
}
/// <summary>
/// An ordered sequence of zero, one or more bits. Returns
/// the AsnType representing an ASN.1 encoded bit string.
/// If value is null, an empty (0 length) bit string is
/// returned.
/// </summary>
/// <param name="values">An AsnType object to be encoded.</param>
/// <returns>Returns the AsnType representing an ASN.1
/// encoded bit string.</returns>
/// <seealso cref="CreateBitString(byte[])"/>
/// <seealso cref="CreateBitString(byte[], uint)"/>
/// <seealso cref="CreateBitString(AsnType)"/>
/// <seealso cref="CreateBitString(String)"/>
/// <seealso cref="CreateOctetString(byte[])"/>
/// <seealso cref="CreateOctetString(AsnType)"/>
/// <seealso cref="CreateOctetString(AsnType[])"/>
/// <seealso cref="CreateOctetString(String)"/>
internal static AsnType CreateBitString(AsnType[] values)
{
if (IsEmpty(values))
{ return new AsnType(0x03, EMPTY); }
// BitString: Tag 0x03 (3, Universal, Primitive)
return CreateBitString(Concatenate(values), 0x00);
}
private static bool IsEmpty(AsnType[] values)
{
if (null == values || 0 == values.Length)
return true;
return false;
}
private static bool IsEmpty(AsnType value)
{
if (null == value)
{ return true; }
return false;
}
private static bool IsEmpty(AsnType value) => null == value;
/// <summary>
/// An ordered sequence of zero, one or more bits. Returns
/// the AsnType representing an ASN.1 encoded bit string.
/// If value is null, an empty (0 length) bit string is
/// returned.
/// </summary>
/// <param name="value">An AsnType object to be encoded.</param>
/// <returns>Returns the AsnType representing an ASN.1
/// encoded bit string.</returns>
/// <seealso cref="CreateBitString(byte[])"/>
/// <seealso cref="CreateBitString(byte[], uint)"/>
/// <seealso cref="CreateBitString(AsnType[])"/>
/// <seealso cref="CreateBitString(String)"/>
/// <seealso cref="CreateOctetString(byte[])"/>
/// <seealso cref="CreateOctetString(AsnType)"/>
/// <seealso cref="CreateOctetString(AsnType[])"/>
/// <seealso cref="CreateOctetString(String)"/>
internal static AsnType CreateBitString(AsnType value)
{
if (IsEmpty(value))
{ return new AsnType(0x03, EMPTY); }
// BitString: Tag 0x03 (3, Universal, Primitive)
return CreateBitString(value.GetBytes(), 0x00);
}
/// <summary>
/// <para>An ordered collection zero, one or more types.
/// Returns the AsnType representing an ASN.1 encoded sequence.</para>
/// <para>If the AsnType value is null,an
/// empty sequence (length 0) is returned.</para>
/// </summary>
/// <param name="value">An AsnType consisting of
/// a single value to be encoded.</param>
/// <returns>Returns the AsnType representing an ASN.1
/// encoded sequence.</returns>
/// <seealso cref="CreateSet(AsnType)"/>
/// <seealso cref="CreateSet(AsnType[])"/>
/// <seealso cref="CreateSetOf(AsnType)"/>
/// <seealso cref="CreateSetOf(AsnType[])"/>
/// <seealso cref="CreateSequence(AsnType)"/>
/// <seealso cref="CreateSequence(AsnType[])"/>
/// <seealso cref="CreateSequenceOf(AsnType)"/>
/// <seealso cref="CreateSequenceOf(AsnType[])"/>
public static AsnType CreateSequenceOf(AsnType value)
{
// From the ASN.1 Mailing List
if (IsEmpty(value))
{
return new AsnType(0x30, Empty);
}
// Sequence: Tag 0x30 (16, Universal, Constructed)
return new AsnType(0x30, value.GetBytes());
}
/// <summary>
/// <para>An ordered collection of one or more types.
/// Returns the AsnType representing an ASN.1 encoded sequence.</para>
/// <para>If the AsnType is null, an empty sequence (length 0)
/// is returned.</para>
/// </summary>
/// <param name="value">An AsnType consisting of
/// a single value to be encoded.</param>
/// <returns>Returns the AsnType representing an ASN.1
/// encoded sequence.</returns>
/// <seealso cref="CreateSet(AsnType)"/>
/// <seealso cref="CreateSet(AsnType[])"/>
/// <seealso cref="CreateSetOf(AsnType)"/>
/// <seealso cref="CreateSetOf(AsnType[])"/>
/// <seealso cref="CreateSequence(AsnType)"/>
/// <seealso cref="CreateSequence(AsnType[])"/>
/// <seealso cref="CreateSequenceOf(AsnType)"/>
/// <seealso cref="CreateSequenceOf(AsnType[])"/>
public static AsnType CreateSequence(AsnType value)
{
// Should be at least 1...
Debug.Assert(!IsEmpty(value));
// One or more required
if (IsEmpty(value))
{
throw new ArgumentException("A sequence requires at least one value.");
}
// Sequence: Tag 0x30 (16, Universal, Constructed)
return new AsnType(0x30, value.GetBytes());
}
/// <summary>
/// Feeds the object.
/// </summary>
/// <param name="targetInstance">The target instance.</param>
/// <param name="rootId">The OID root identifier.</param>
/// <param name="datas">The datas.</param>
private void FeedObject(object targetInstance, Oid rootId, Dictionary <Oid, AsnType> datas = null)
{
bool snmpWalk = false;
foreach (PropertyInfo property in targetInstance.GetType().GetProperties())
{
OIDAttribute propertyAttribute = property.GetCustomAttribute <OIDAttribute>();
if (propertyAttribute != null)
{
if (datas == null && !snmpWalk)
{
snmpWalk = true;
datas = this.Client.Walk(this.Version, propertyAttribute.ObjectId.ToString());
}
if (datas != null && datas.Count > 0)
{
if (property.PropertyType.IsGenericType && property.PropertyType.GetGenericTypeDefinition() == typeof(Sequence <>))
{
object obj = property.GetValue(targetInstance);
if (obj == null)
{
obj = Activator.CreateInstance(property.PropertyType);
property.SetValue(targetInstance, obj);
}
FeedSequence(obj, property.PropertyType.GenericTypeArguments[0], propertyAttribute.ObjectId, datas.Where(i => propertyAttribute.ObjectId.IsRootOf(i.Key)).ToDictionary(k => k.Key, v => v.Value));
}
else if (property.PropertyType.GetCustomAttribute <SnmpObjectAttribute>() != null && property.PropertyType.IsClass)
{
object obj = property.GetValue(targetInstance);
if (obj == null)
{
obj = Activator.CreateInstance(property.PropertyType);
property.SetValue(targetInstance, obj);
}
FeedObject(obj, propertyAttribute.ObjectId, datas.Where(i => propertyAttribute.ObjectId.IsRootOf(i.Key)).ToDictionary(k => k.Key, v => v.Value));
}
else
{
AsnType asnValue = datas.Where(t => propertyAttribute.ObjectId == t.Key || propertyAttribute.ObjectId.IsRootOf(t.Key)).Select(p => p.Value).SingleOrDefault();
if (asnValue != null)
{
property.SetValue(targetInstance, GetValue(asnValue, property.PropertyType));
}
else if (property.GetCustomAttribute <RequiredAttribute>() != null)
{
throw new MissingMemberException(property.ReflectedType.Name, property.Name);
}
}
}
if (property.GetCustomAttribute <RequiredAttribute>() != null && property.PropertyType.IsClass && property.GetValue(targetInstance) == null)
{
throw new MissingMemberException(property.ReflectedType.Name, property.Name);
}
}
if (snmpWalk)
{
snmpWalk = false;
datas = null;
}
}
}
/// <summary>
/// Perform an SNMP Set.
/// </summary>
/// <param name="destination">The destination host.</param>
/// <param name="oid">The OID to set.</param>
/// <param name="value">The value to set.</param>
/// <returns>Nothing.</returns>
public static async Task SnmpSetAsync(IPAddress destination, string community, Oid oid, AsnType value)
{
UdpTarget target = new UdpTarget(destination);
// Create a SET PDU
Pdu pdu = new Pdu(EPduType.Set);
pdu.VbList.Add(oid, value);
// Set Agent security parameters
AgentParameters aparam = new AgentParameters(ESnmpVersion.Ver2, new OctetString(community));
// Response packet
SnmpV2Packet response;
try
{
// Send request and wait for response
response = await target.RequestAsync(pdu, aparam) as SnmpV2Packet;
}
catch (Exception ex)
{
// If exception happens, it will be returned here
Console.WriteLine(string.Format("Request failed with exception: {0}", ex.Message));
target.Close();
return;
}
// Make sure we received a response
if (response == null)
{
Console.WriteLine("Error in sending SNMP request.");
}
else
{
// Check if we received an SNMP error from the agent
if (response.Pdu.ErrorStatus != 0)
{
Console.WriteLine(string.Format("SNMP agent returned ErrorStatus {0} on index {1}", response.Pdu.ErrorStatus, response.Pdu.ErrorIndex));
}
else
{
// Everything is ok. Agent will return the new value for the OID we changed
Console.WriteLine(string.Format("Agent response {0}: {1}", response.Pdu[0].Oid.ToString(), response.Pdu[0].Value.ToString()));
}
}
}
/// <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 static Task SnmpSetAsync(IPAddress destination, string community, string oid, AsnType value)
{
return(SnmpSetAsync(destination, community, new Oid(oid), value));
}