private System.Collections.Generic.Dictionary <string, string> SendPacket(SnmpOperationType pduType, VarBinding variables)
{
if (variables == null)
{
throw new System.ArgumentNullException("The variables for the " + pduType + " operation is null.");
}
return(this.SendPacket(pduType, new System.Collections.Generic.List <VarBinding>
{
variables
}));
}
private System.Collections.Generic.Dictionary <string, string> SendPacket(SnmpOperationType pduType, System.Collections.Generic.List <VarBinding> variables)
{
if (variables == null || variables.Count < 1)
{
throw new System.ArgumentNullException("The variables for the " + pduType + " operation is null or empty.");
}
UdpTarget udpTarget = null;
IAgentParameters agentParameters = null;
Pdu pdu = null;
System.Collections.Generic.Dictionary <string, string> result3;
try
{
udpTarget = new UdpTarget(System.Net.IPAddress.Parse(this.config.AgentIp), this.config.Port, this.config.Timeout, this.config.Retry);
if (this.config.Version == SnmpVersionType.Ver3)
{
agentParameters = new SecureAgentParameters();
SecureAgentParameters secureAgentParameters = agentParameters as SecureAgentParameters;
if (!udpTarget.Discovery(secureAgentParameters))
{
throw new SnmpException("Discovery failed: The device with ip(" + this.config.AgentIp + ") is unreachable.");
}
pdu = new ScopedPdu();
SnmpV3Config snmpV3Config = this.config as SnmpV3Config;
secureAgentParameters.SecurityName.Set(snmpV3Config.UserName);
secureAgentParameters.Authentication = (AuthenticationDigests)snmpV3Config.Authentication;
secureAgentParameters.AuthenticationSecret.Set(snmpV3Config.AuthSecret);
secureAgentParameters.Privacy = (PrivacyProtocols)snmpV3Config.Privacy;
secureAgentParameters.PrivacySecret.Set(snmpV3Config.PrivacySecret);
secureAgentParameters.Reportable = true;
}
else
{
if (this.config.Version == SnmpVersionType.Ver1)
{
OctetString community = new OctetString(((SnmpV1Config)this.config).Community);
agentParameters = new AgentParameters(SnmpVersion.Ver1, community);
}
else
{
OctetString community = new OctetString(((SnmpV2Config)this.config).Community);
agentParameters = new AgentParameters(SnmpVersion.Ver2, community);
}
pdu = new Pdu();
}
DictionaryUtil dictionaryUtil = new DictionaryUtil();
foreach (VarBinding current in variables)
{
try
{
if (current is LeafVarBinding)
{
if (pduType.Equals(SnmpOperationType.GetTable) || pduType.Equals(SnmpOperationType.Walk))
{
pdu.Type = PduType.Get;
}
else
{
pdu.Type = (PduType)pduType;
if (pduType.Equals(SnmpOperationType.GetBulk))
{
this.configBulkPdu(pdu, current.MaxRepetition);
}
}
System.Collections.Generic.Dictionary <string, string> result = this.ReceiveResponseWithLeafVB((LeafVarBinding)current, pdu, udpTarget, agentParameters);
dictionaryUtil.Add(result);
}
else
{
if (agentParameters.Version == SnmpVersion.Ver1)
{
pdu.Type = PduType.GetNext;
}
else
{
pdu.Type = PduType.GetBulk;
this.configBulkPdu(pdu, current.MaxRepetition);
}
System.Collections.Generic.Dictionary <string, string> result2 = this.ReceiveResponseWithTableVB((TableVarBinding)current, pdu, udpTarget, agentParameters);
dictionaryUtil.Add(result2);
}
}
catch (System.Exception ex)
{
if (!ex.Message.Contains("Invalid ASN.1 type encountered 0x00. Unable to continue decoding."))
{
throw new SnmpException(ex.Message);
}
}
}
result3 = dictionaryUtil.Result;
}
catch (System.Exception ex2)
{
throw new SnmpException(ex2.Message);
}
finally
{
if (udpTarget != null)
{
udpTarget.Close();
}
}
return(result3);
}