/// <summary>
/// 异步SetRequest
/// </summary>
/// <param name="pdu"></param>
/// <param name="callback"></param>
/// <returns></returns>
public override bool SetRequestAsync(Pdu pdu, SnmpAsyncResponse callback)
{
bool rs = false;
if (m_target == null)
{
Log.Error("SNMP m_target = null.");
return(false);
}
if (pdu == null)
{
Log.Error("SNMP请求参数pdu为空");
return(false);
}
pdu.Type = PduType.Set;
try
{
rs = m_target.RequestAsync(pdu, m_Param, callback);
if (!rs)
{
Log.Error("SNMP异步请求错误");
}
}
catch (Exception e)
{
Log.Error(e.Message.ToString());
throw e;
}
return(rs);
}
/// <summary>
/// 异步Set操作
/// </summary>
/// <param name="lmtPdu"></param>
/// <param name="requestId"></param>
/// <param name="strIpAddr"></param>
/// <returns></returns>
public int SnmpSetAsync(CDTLmtbPdu lmtPdu, out long requestId, string strIpAddr)
{
requestId = 0;
Log.Debug("========== SnmpGetSync() Start ==========");
string msg = string.Format("pars: lmtPdu={0}, requestId={1}, strIpAddr={2}"
, lmtPdu, requestId, strIpAddr);
Log.Debug(msg);
if (string.IsNullOrEmpty(strIpAddr))
{
Log.Error("参数strIpAddr为空");
return(-1);
}
if (lmtPdu == null)
{
Log.Error("参数lmtPdu为空");
return(-1);
}
// TODO: 根据基站ip获取Lmtor信息
//LMTORINFO* pLmtorInfo = CDTAppStatusInfo::GetInstance()->GetLmtorInfo(remoteIpAddr);
SnmpHelper snmp = m_SnmpAsync;
if (null == snmp)
{
msg = string.Format("基站[{0}]的snmp连接不存在，无法下发snmp命令");
Log.Error(msg);
return(-1);
}
// TODO
lmtPdu.setReqMsgType((int)PduType.Set);
Pdu pdu = new Pdu();
requestId = pdu.RequestId;
// TODO:
bool rs = LmtPdu2SnmpPdu(out pdu, lmtPdu, strIpAddr);
if (!rs)
{
Log.Error("LmtPdu2SnmpPdu()转换错误");
}
SnmpAsyncResponse snmpCallback = new SnmpAsyncResponse(this.SnmpCallbackFun);
rs = snmp.SetRequestAsync(pdu, snmpCallback);
if (!rs)
{
Log.Error("SNMP 异步请求错误");
return(-1);
}
return(0);
}
/// <summary>
/// Make an async discovery request for protocol version 3.
/// </summary>
/// <param name="param">Agent parameters</param>
/// <param name="callback">Callback method</param>
/// <returns>True if operation was correctly initiated, otherwise false.</returns>
public bool DiscoveryAsync(SecureAgentParameters param, SnmpAsyncResponse callback)
{
Pdu p = new Pdu();
return(RequestAsync(p, param, callback));
}
/// <summary>
/// Make SNMP request. With this method you can make blocked SNMP version 1, 2 and 3 requests of type GET,
/// GET-NEXT, GET-BULK, SET and REPORT (request types have to compatible with the SNMP protocol version you
/// are using).
///
/// This method will pass through any exceptions thrown by parsing classes/methods so see individual packet
/// classes, ASN.1 type classes, authentication, privacy, etc. classes for exceptions thrown.
/// </summary>
/// <param name="pdu">Pdu class (do not pass ScopedPdu)</param>
/// <param name="agentParameters">Security information for the request. Use <see cref="AgentParameters"/>
/// for SNMP versions 1 and 2 requests. Use <see cref="SecureAgentParameters"/> for SNMP version 3
/// requests.</param>
/// <param name="responseCallback">Callback that receives the result of the async operation.</param>
/// <returns>True if async request was successfully initiated, otherwise false.</returns>
public bool RequestAsync(Pdu pdu, IAgentParameters agentParameters, SnmpAsyncResponse responseCallback)
{
if (IsBusy)
{
return(false); // class is busy
}
_response = null;
_response += responseCallback;
_agentParameters = agentParameters;
byte[] outPacket;
if (agentParameters.Version == SnmpVersion.Ver3)
{
SecureAgentParameters secparams = (SecureAgentParameters)agentParameters;
if (secparams.Authentication != AuthenticationDigests.None && secparams.AuthenticationSecret.Length <= 0)
{
// _response(AsyncRequestResult.AuthenticationError, null);
return(false);
}
if (secparams.Privacy != PrivacyProtocols.None && secparams.PrivacySecret.Length <= 0)
{
// _response(AsyncRequestResult.PrivacyError, null);
return(false);
}
_noSourceCheck = false; // this option is not valid for SNMP v3 requests
ScopedPdu outPdu = new ScopedPdu(pdu);
outPdu.ContextEngineId.Set(secparams.EngineId);
outPdu.ContextName.Set(secparams.ContextName);
SnmpV3Packet packet = new SnmpV3Packet(outPdu);
secparams.InitializePacket(packet);
try
{
if (secparams.HasCachedKeys)
{
outPacket = packet.encode(secparams.AuthenticationKey, secparams.PrivacyKey);
}
else
{
outPacket = packet.encode();
}
}
catch (Exception ex)
{
ex.GetType();
_response(AsyncRequestResult.EncodeError, packet);
return(false);
}
}
else if (agentParameters.Version == (int)SnmpVersion.Ver1)
{
AgentParameters param = (AgentParameters)agentParameters;
_noSourceCheck = param.DisableReplySourceCheck;
SnmpV1Packet packet = new SnmpV1Packet();
packet.Pdu.Set(pdu);
packet.Community.Set(param.Community);
try
{
outPacket = packet.encode();
}
catch (Exception ex)
{
ex.GetType();
_response(AsyncRequestResult.EncodeError, packet);
return(false);
}
}
else if (agentParameters.Version == SnmpVersion.Ver2)
{
AgentParameters param = (AgentParameters)agentParameters;
_noSourceCheck = param.DisableReplySourceCheck;
SnmpV2Packet packet = new SnmpV2Packet();
packet.Pdu.Set(pdu);
packet.Community.Set(param.Community);
try
{
outPacket = packet.encode();
}
catch (Exception ex)
{
ex.GetType();
_response(AsyncRequestResult.EncodeError, packet);
return(false);
}
}
else
{
throw new SnmpInvalidVersionException("Unsupported SNMP version.");
}
if (!base.RequestAsync(_address, _port, outPacket, outPacket.Length, _timeout, _retry, new SnmpAsyncCallback(AsyncResponse)))
{
return(false);
}
return(true);
}
public abstract bool SetRequestAsync(Pdu pdu, SnmpAsyncResponse callback);
/// <summary>
/// Make SNMP request. With this method you can make blocked SNMP version 1, 2 and 3 requests of type GET,
/// GET-NEXT, GET-BULK, SET and REPORT (request types have to compatible with the SNMP protocol version you
/// are using).
///
/// This method will pass through any exceptions thrown by parsing classes/methods so see individual packet
/// classes, ASN.1 type classes, authentication, privacy, etc. classes for exceptions thrown.
/// </summary>
/// <param name="pdu">Pdu class (do not pass ScopedPdu)</param>
/// <param name="agentParameters">Security information for the request. Use <see cref="AgentParameters"/>
/// for SNMP versions 1 and 2 requests. Use <see cref="SecureAgentParameters"/> for SNMP version 3
/// requests.</param>
/// <param name="responseCallback">Callback that receives the result of the async operation.</param>
/// <returns>True if async request was successfully initiated, otherwise false.</returns>
public bool RequestAsync(Pdu pdu, IAgentParameters agentParameters, SnmpAsyncResponse responseCallback)
{
if (IsBusy)
{
return false; // class is busy
}
_response = null;
_response += responseCallback;
_agentParameters = agentParameters;
byte[] outPacket;
if (agentParameters.Version == SnmpVersion.Ver3)
{
SecureAgentParameters secparams = (SecureAgentParameters)agentParameters;
if (secparams.Authentication != AuthenticationDigests.None && secparams.AuthenticationSecret.Length <= 0)
{
// _response(AsyncRequestResult.AuthenticationError, null);
return false;
}
if (secparams.Privacy != PrivacyProtocols.None && secparams.PrivacySecret.Length <= 0)
{
// _response(AsyncRequestResult.PrivacyError, null);
return false;
}
_noSourceCheck = false; // this option is not valid for SNMP v3 requests
ScopedPdu outPdu = new ScopedPdu(pdu);
outPdu.ContextEngineId.Set(secparams.EngineId);
outPdu.ContextName.Set(secparams.ContextName);
SnmpV3Packet packet = new SnmpV3Packet(outPdu);
secparams.InitializePacket(packet);
try
{
if (secparams.HasCachedKeys)
outPacket = packet.encode(secparams.AuthenticationKey, secparams.PrivacyKey);
else
outPacket = packet.encode();
}
catch( Exception ex )
{
ex.GetType();
_response(AsyncRequestResult.EncodeError, packet);
return false;
}
}
else if (agentParameters.Version == (int)SnmpVersion.Ver1)
{
AgentParameters param = (AgentParameters)agentParameters;
_noSourceCheck = param.DisableReplySourceCheck;
SnmpV1Packet packet = new SnmpV1Packet();
packet.Pdu.Set(pdu);
packet.Community.Set(param.Community);
try
{
outPacket = packet.encode();
}
catch( Exception ex)
{
ex.GetType();
_response(AsyncRequestResult.EncodeError, packet);
return false;
}
}
else if (agentParameters.Version == SnmpVersion.Ver2)
{
AgentParameters param = (AgentParameters)agentParameters;
_noSourceCheck = param.DisableReplySourceCheck;
SnmpV2Packet packet = new SnmpV2Packet();
packet.Pdu.Set(pdu);
packet.Community.Set(param.Community);
try
{
outPacket = packet.encode();
}
catch( Exception ex )
{
ex.GetType();
_response(AsyncRequestResult.EncodeError, packet);
return false;
}
}
else
{
throw new SnmpInvalidVersionException("Unsupported SNMP version.");
}
if( ! base.RequestAsync(_address, _port, outPacket, outPacket.Length, _timeout, _retry, new SnmpAsyncCallback(AsyncResponse) ) ) {
return false;
}
return true;
}
/// <summary>
/// Make an async discovery request for protocol version 3.
/// </summary>
/// <param name="param">Agent parameters</param>
/// <param name="callback">Callback method</param>
/// <returns>True if operation was correctly initiated, otherwise false.</returns>
public bool DiscoveryAsync(SecureAgentParameters param, SnmpAsyncResponse callback)
{
Pdu p = new Pdu();
return RequestAsync(p, param, callback);
}