/// <summary>
/// Called by a connection when it has received an intact and complete message in wire-format.
/// Parses the supplied byte-array to generate a typed message for processing.
/// On return from this routine the connection is free to overwrite the buffer contents.
/// /// </summary>
/// <param name="conn">Connection (think TCP to specific network agent) on which message arrived.</param>
/// <param name="buff">Buffer encoding the message.</param>
/// <param name="offset">Offset to start of message in the supplied buffer.</param>
/// <param name="length">Length of message encoding in supplied buffer</param>
public void ReceiveMessage(Connection conn, MessageTypes messageType, byte[] buff, int offset, int length)
{
switch (messageType)
{
case MessageTypes.MessageTypeRegister:
{
MessageRegister msgRegister = MessageRegister.CreateFromNetBytes(buff, offset);
TenantId = msgRegister.TenantId;
client.CallbackMessageRegister(conn, msgRegister.TenantId, msgRegister.AlertVec);
MessageAck ack = new MessageAck(msgRegister.SeqNo,
MessageTypes.MessageTypeRegisterAck,
(uint)OktoResultCodes.OKTO_RESULT_SUCCESS);
SendSynchronous(conn, ack.Serialize);
conn.BeginReceive();
break;
}
case MessageTypes.MessageTypeIoFlowCreate:
{
MessageIoFlowCreate msgFlowc = MessageIoFlowCreate.CreateFromNetBytes(buff, offset);
lock (LockLocal)
{
foreach (IoFlowMessageParams flowc in msgFlowc.ListParams)
{
Console.WriteLine("Agent MessageIoFlowCreate({0},{1})", flowc.FlowId, flowc.ParameterString);
if (DictFlowCreateParams.ContainsKey(flowc.FlowId))
throw new ArgumentOutOfRangeException(string.Format("Agent flowc dup FlowId {0}", flowc.FlowId));
DictFlowCreateParams.Add(flowc.FlowId, flowc);
}
}
MessageAck ack = new MessageAck(msgFlowc.SeqNo,
MessageTypes.MessageTypeIoFlowCreateAck,
(uint)OktoResultCodes.OKTO_RESULT_SUCCESS);
SendSynchronous(conn, ack.Serialize);
conn.BeginReceive();
break;
}
case MessageTypes.MessageTypeRapFsCreate:
{
MessageRapFsCreate msgRapc = MessageRapFsCreate.CreateFromNetBytes(buff, offset);
lock (LockLocal)
{
foreach (MsgRapArg rapc in msgRapc.ListMsgRapArg)
{
Console.WriteLine("Agent MessageRapFsCreate({0},{1},{2})", rapc.FlowId, rapc.stringSid, rapc.ShareOrVolume);
if (!DictFlowCreateParams.ContainsKey(rapc.FlowId))
throw new ArgumentOutOfRangeException(string.Format("Agent rapc invalid FlowId {0}", rapc.FlowId));
if (DictRapCreateParams.ContainsKey(rapc.FlowId))
throw new ArgumentOutOfRangeException(string.Format("Agent rapc dup FlowId {0}", rapc.FlowId));
if (!DictFlowCreateParams.ContainsKey(rapc.FlowId))
throw new ArgumentOutOfRangeException(string.Format("Agent rapc unmatched FlowId {0}", rapc.FlowId));
DictRapCreateParams.Add(rapc.FlowId, rapc);
}
}
//
// Params look reasonable and FlowCreate and RapCreate match up.
// Now we can invite the client to create its IoFlows.
//
OktoResultCodes result = client.CallbackIoFlowCreate(DictFlowCreateParams, DictRapCreateParams);
MessageAck ack = new MessageAck(msgRapc.SeqNo,
MessageTypes.MessageTypeRapFsCreateAck,
(uint)result);
SendSynchronous(conn, ack.Serialize);
conn.BeginReceive();
break;
}
case MessageTypes.MessageTypeStatsZero:
{
MessageStatsZero msgZero = MessageStatsZero.CreateFromNetBytes(buff, offset);
OktoResultCodes result = client.CallbackMessageStatsZero();
MessageAck ack = new MessageAck(msgZero.SeqNo,
MessageTypes.MessageTypeStatsZeroAck,
(uint)result);
SendSynchronous(conn, ack.Serialize);
conn.BeginReceive();
break;
}
case MessageTypes.MessageTypeIoFlowUpdate:
{
MessageIoFlowUpdate msgFlowc = MessageIoFlowUpdate.CreateFromNetBytes(buff, offset);
lock (LockLocal)
{
foreach (IoFlowMessageParams flowu in msgFlowc.ListParams)
if (!DictFlowCreateParams.ContainsKey(flowu.FlowId))
throw new ArgumentOutOfRangeException(string.Format("Agent flowu invalid FlowId {0}", flowu.FlowId));
}
OktoResultCodes result = client.CallbackMessageIoFlowUpdate(msgFlowc.ListParams);
MessageAck ack = new MessageAck(msgFlowc.SeqNo,
MessageTypes.MessageTypeIoFlowUpdateAck,
(uint)result);
SendSynchronous(conn, ack.Serialize);
conn.BeginReceive();
break;
}
case MessageTypes.MessageTypeTenantDelete:
{
MessageTenantDelete msgTend = MessageTenantDelete.CreateFromNetBytes(buff, offset);
OktoResultCodes result = client.CallbackMessageTenantDelete();
MessageAck ack = new MessageAck(msgTend.SeqNo,
MessageTypes.MessageTypeTenantDeleteAck,
(uint)result);
SendSynchronous(conn, ack.Serialize);
conn.BeginReceive();
break;
}
case MessageTypes.MessageTypeIoFlowStatsQuery:
{
MessageIoFlowStatsQuery msgStatsQ = MessageIoFlowStatsQuery.CreateFromNetBytes(buff, offset);
List<IoFlowMessageParams> listStats = client.CallbackMessageIoFlowStatsQuery();
lock (LockLocal)
{
foreach (IoFlowMessageParams stats in listStats)
if (!DictFlowCreateParams.ContainsKey(stats.FlowId))
throw new ArgumentOutOfRangeException(string.Format("Stats reply invalid FlowId {0}", stats.FlowId));
}
MessageIoFlowStatsReply msgStatsReply = new MessageIoFlowStatsReply(msgStatsQ.SeqNo, listStats, TenantId);
SendSynchronous(conn, msgStatsReply.Serialize);
conn.BeginReceive();
break;
}
case MessageTypes.MessageTypeNameToStringSidBatchQuery:
{
MessageNameToStringSidBatchQuery msgSidBatchQuery =
MessageNameToStringSidBatchQuery.CreateFromNetBytes(buff, offset);
Dictionary<string, string> DictVmNameToSid = new Dictionary<string, string>();
System.Security.Principal.SecurityIdentifier sid = null;
foreach (string vmName in msgSidBatchQuery.ListVmNames)
{
//XXXET: following two lines are for account names of type europe\
sid = VmSID.GetVMnameSid(vmName);
if (sid == null)
{
try
{
NTAccount ntaccount = new NTAccount(vmName);
sid = (SecurityIdentifier)ntaccount.Translate(typeof(SecurityIdentifier));
}
catch (Exception e)
{
Debug.Assert(0 == 1, e.Message);
}
}
Console.WriteLine("MessageTypeNameToStringSidBatchQuery: {0} sid {1}", vmName, sid.ToString());
DictVmNameToSid.Add(vmName, sid.ToString());
}
MessageVmNameToStringSidBatchReply msgSidReply =
new MessageVmNameToStringSidBatchReply(msgSidBatchQuery.SeqNo,
(uint)OktoResultCodes.OKTO_RESULT_SUCCESS,
DictVmNameToSid);
SendSynchronous(conn, msgSidReply.Serialize);
conn.BeginReceive();
break;
}
default:
{
string msg = string.Format("ReceiveMessage: unexpected message type {0}", messageType);
throw new ApplicationException(msg);
}
} // switch
}
public static MessageAck CreateFromNetBytes(byte[] buffer, int offset)
{
MessageAck msg = new MessageAck();
msg.Length = (uint)Utils.Int32FromNetBytes(buffer, offset); offset += 4;
msg.SeqNo = (uint)Utils.Int32FromNetBytes(buffer, offset); offset += 4;
msg.MessageType = buffer[offset++];
msg.Result = (uint)Utils.Int32FromNetBytes(buffer, offset); offset += 4;
msg.SubType = buffer[offset++];
return msg;
}
