/// <summary>
/// Sends messages to network agents instructing them to create RAPs.
/// The messages are sent synchronously in parallel and control is not returned to the
/// caller until all network agents have replied.
/// </summary>
public void InstallRaps()
{
ValidateState(RateControllerState.Init, "InstallRaps");
ManualResetEvent NetMessagesComplete = NetBeginMessagePairs(netRateController.InstallRaps);
const MessageTypes replyType = MessageTypes.MessageTypeRapFsCreateAck;
const int typeIndex = (int)replyType;
lock (LockPendingReplies[typeIndex])
{
foreach (Connection conn in AgentNameToConn.Values)
{
List<RAP> listOktofsRap = new List<RAP>();
foreach (RAP rap in conn.ListRap)
if (rap.LocEndpointDetails.IsOktofsC || rap.LocEndpointDetails.IsOktofsH)
listOktofsRap.Add(rap);
if (listOktofsRap.Count > 0)
{
Console.WriteLine("InstallRaps {0} oktofs raps on host {1}", listOktofsRap.Count, conn.HostName);
RAP[] arrayRapFsArg = new RAP[listOktofsRap.Count];
for (int i = 0; i < listOktofsRap.Count; i++)
arrayRapFsArg[i] = conn.ListRap[i];
MessageRapFsCreate mRapFsCreate = new MessageRapFsCreate(++SeqNo, arrayRapFsArg);
SendParallel(conn, mRapFsCreate.Serialize, replyType, mRapFsCreate.SeqNo);
}
}
foreach (Connection conn in IoFlowNameToConn.Values)
{
if (conn.DictIoFlows.Count == 0)
continue;
Console.WriteLine("InstallRaps {0} ioflow raps on host {1}", conn.DictIoFlows.Count, conn.HostName);
RAP[] arrayRapFsArg = new RAP[conn.DictIoFlows.Count];
int i = 0;
foreach (Flow flow in conn.DictIoFlows.Values)
arrayRapFsArg[i++] = flow.RapD;
MessageRapFsCreate mRapFsCreate = new MessageRapFsCreate(++SeqNo, arrayRapFsArg);
SendParallel(conn, mRapFsCreate.SerializeIoFlow, replyType, mRapFsCreate.SeqNo);
}
WaitForParallelReplies(replyType, Parameters.RAPC_MESSAGE_TIMEOUT_MS);
} // lock
NetMessagesComplete.WaitOne();
}
private int SerializeRapFsArg(RAP rap, byte[] buffer, int offset, bool isOktofs)
{
int startOffset = offset;
string stringSid = rap.LocEndpointDetails.StringSid;
Utils.Int32ToNetBytes((int)rap.Queue.FlowId, buffer, offset); offset += 4; // FlowId.
Utils.Int32ToNetBytes((int)stringSid.Length, buffer, offset); offset += 4; // StringSid
int shareLen = (isOktofs ? (int)rap.ShareOrVolume.Length : (int)rap.LocEndpointDetails.FileName.Length);
Utils.Int32ToNetBytes(shareLen, buffer, offset); offset += 4; // ShareNameCZLen
Utils.Int32ToNetBytes(rap.i_index, buffer, offset); offset += 4; // i_index
Utils.Int32ToNetBytes(rap.j_index, buffer, offset); offset += 4; // j_index
for (int i = 0; i < Parameters.OKTO_VM_NAME_MAX_CHARS; i++)
buffer[offset + i] = 0; // ensure chars zero terminated in buffer.
int encByteCount = Enc.GetBytes(stringSid, 0, stringSid.Length, buffer, offset);
if (encByteCount != stringSid.Length || encByteCount > Parameters.OKTO_VM_NAME_MAX_CHARS)
throw new ApplicationException(String.Format("SerializeRapFsArg VM enc({0}) overrun {1}.", encByteCount, rap.LocEndpointDetails.StringSid));
offset += Parameters.OKTO_VM_NAME_MAX_CHARS;
for (int i = 0; i < Parameters.OKTO_SHARE_NAME_MAX_CHARS; i++)
buffer[offset + i] = 0; // ensure chars zero terminated in buffer.
string strShare = (isOktofs ? rap.ShareOrVolume : rap.LocEndpointDetails.FileName);
encByteCount = Enc.GetBytes(strShare, 0, shareLen, buffer, offset);
if (encByteCount != shareLen || encByteCount > Parameters.OKTO_SHARE_NAME_MAX_CHARS)
{
Console.WriteLine("SerializeRapFsArg err serializing {0}", rap.ShareOrVolume);
throw new ApplicationException(String.Format("SerializeRapFsArg SHARE enc({0}) overrun {1}.", encByteCount, rap.ShareOrVolume.Length));
}
offset += Parameters.OKTO_SHARE_NAME_MAX_CHARS;
Debug.Assert(offset - startOffset == SIZEOF_RAP_FS_ARG);
return SIZEOF_RAP_FS_ARG;
}
/// <summary>
/// Called to initialize the list of RAPS.
/// </summary>
/// <param name="listEndpoints">List of (addr,NodeDetails) pairs typically ex ParseConfigFile().</param>
/// <returns></returns>
public List<RAP> InitListRap(List<Endpoint> listEndpoints)
{
ValidateState(RateControllerState.Init, "InitTrafficMatrix");
if (listEndpoints.Count == 0)
throw new ArgumentException("err: input cannot have zero length.");
if (IsMatrixGenerated)
throw new ApplicationException("err: InitListRap() can only be called once.");
matrixDimension = listEndpoints.Count;
//
// Setup TCP connection to each network agent and then register with each network agent.
// Each row in table represents a VM, so all entries in a row use the same network agent.
//
foreach (Endpoint ep in listEndpoints)
{
Connection conn;
string serverName = ep.FilterServer;
if (ep.IsOktofsH && !AgentNameToConn.TryGetValue(serverName, out conn))
{
conn = new Connection(this, serverName, 0, AgentPort);
AgentNameToConn.Add(serverName, conn);
MessageRegister mRegister = new MessageRegister(++SeqNo, TenantId, AlertVec);
const MessageTypes replyType = MessageTypes.MessageTypeRegisterAck;
const int typeIndex = (int)replyType;
lock (LockPendingReplies[typeIndex])
{
// Registration messages actually sent sequentially, but using parallel paradigm.
// This because SendSequential will break if interleaved with alerts.
SendParallel(conn, mRegister.Serialize, replyType, mRegister.SeqNo);
conn.BeginReceive();
WaitForParallelReplies(replyType, Parameters.DEFAULT_MESSAGE_TIMEOUT_MS);
}
}
}
foreach (Endpoint ep in listEndpoints)
{
Connection conn;
string hyperVName = ep.HyperVserver;
//
// Connections to remote OktofsAgent socket apps.
//
if ((ep.IsOktofsC || ep.IsOktofsH) && !AgentNameToConn.TryGetValue(hyperVName, out conn))
{
conn = new Connection(this, hyperVName, 0, AgentPort);
AgentNameToConn.Add(hyperVName, conn);
MessageRegister mRegister = new MessageRegister(++SeqNo, TenantId, AlertVec);
const MessageTypes replyType = MessageTypes.MessageTypeRegisterAck;
const int typeIndex = (int)replyType;
lock (LockPendingReplies[typeIndex])
{
// Registration messages actually sent sequentially, but using parallel paradigm.
// This because SendSequential will break if interleaved with alerts.
SendParallel(conn, mRegister.Serialize, replyType, mRegister.SeqNo);
conn.BeginReceive();
WaitForParallelReplies(replyType, Parameters.DEFAULT_MESSAGE_TIMEOUT_MS);
}
}
//
// Connections to remote IoFlow socket apps.
//
if (ep.IsIoFlowD && !IoFlowNameToConn.TryGetValue(hyperVName, out conn))
{
conn = new Connection(this, hyperVName, 0, Parameters.IOFLOWAGENT_TCP_PORT_NUMBER);
IoFlowNameToConn.Add(hyperVName, conn);
MessageRegister mRegister = new MessageRegister(++SeqNo, TenantId, AlertVec);
const MessageTypes replyType = MessageTypes.MessageTypeRegisterAck;
const int typeIndex = (int)replyType;
lock (LockPendingReplies[typeIndex])
{
// Registration messages actually sent sequentially, but using parallel paradigm.
// This because SendSequential will break if interleaved with alerts.
SendParallel(conn, mRegister.Serialize, replyType, mRegister.SeqNo);
conn.BeginReceive();
WaitForParallelReplies(replyType, Parameters.DEFAULT_MESSAGE_TIMEOUT_MS);
}
}
}
//
// NT account names in the config file need to be translated into SIDs.
// This because SIDS in config files are too unfriendly and error-prone.
// Names and SIDS from an untrusted NT domain are legit, e.g. VMs in a workgroup.
// Such names cannot be resolved locally, so ask the Hyper-V server to do it for us.
// If the Hyper-V server is unknown, e.g. H-only config., config must use valid SIDS.
//
//
// Ask Hyper-V servers to translate VM names to SIDS in case VM in untrusted NT domain.
//
Dictionary<string, Connection> DictIoFlowVmLookup = new Dictionary<string, Connection>(); // Any not resolved by Oktofs agent.
foreach (Endpoint nDtls in listEndpoints)
{
// Nothing to do if config file claims to know the correct string SID.
if (nDtls.SidOrAccount.ToUpper().StartsWith("S-1-5-"))
continue;
// Only attempt SID translation at Hyper-V servers i.e. at point C in stack.
if (!nDtls.Tag.ToUpper().Contains("-VM-SHARE-VOL") &&
!nDtls.Tag.ToUpper().Contains("-VM-FILE-VOL") )
continue;
// Maybe we already queried this SID with the given Hyper-V server.
string VmKey = MakeVmKey(nDtls.HyperVserver, nDtls.SidOrAccount);
if (DictVmNameToSid.ContainsKey(VmKey))
{
nDtls.StringSid = DictVmNameToSid[VmKey];
continue;
}
// Ask remote Hyper-V server for the sid: our DC may not trust VMs NT domain (e.g. workgroup).
Connection conn = null;
if (AgentNameToConn.TryGetValue(nDtls.HyperVserver, out conn))
{
MessageNameToStringSidQuery mQuerySid =
new MessageNameToStringSidQuery(++SeqNo, (uint)nDtls.SidOrAccount.Length, nDtls.SidOrAccount);
const MessageTypes replyType = MessageTypes.MessageTypeNameToStringSidReply;
const int typeIndex = (int)replyType;
lock (LockPendingReplies[typeIndex])
{
// For now (dbg) VmName to SID translation messages actually sent sequentially.
SendParallel(conn, mQuerySid.Serialize, replyType, mQuerySid.SeqNo);
WaitForParallelReplies(replyType, Parameters.DEFAULT_MESSAGE_TIMEOUT_MS);
}
// Fatal error if SidQuery failed to update DictVmNameToSid.
if (!DictVmNameToSid.ContainsKey(VmKey))
throw new ApplicationException(String.Format("Panic: failed to get SID for {0}", VmKey));
continue;
}
// If we are using IoFlowAgent but not an OktoFsAgent try the IoFlowagent for the sid.
if (IoFlowNameToConn.TryGetValue(nDtls.HyperVserver, out conn))
{
if (!DictIoFlowVmLookup.ContainsKey(nDtls.SidOrAccount)){
DictIoFlowVmLookup.Add(nDtls.SidOrAccount, conn);
}
}
}
// Any unresolved Vm-to-sid lookups are attempted via IoFlow network agent in batches in parallel.
if (DictIoFlowVmLookup.Count != 0)
{
const MessageTypes replyType = MessageTypes.MessageTypeNameToStringSidBatchReply;
const int typeIndex = (int)replyType;
lock (LockPendingReplies[typeIndex])
{
foreach (Connection conn in IoFlowNameToConn.Values)
{
List<string> listVmNames = new List<string>();
foreach (KeyValuePair<string, Connection> kvp in DictIoFlowVmLookup)
if (kvp.Value == conn)
listVmNames.Add(kvp.Key);
MessageNameToStringSidBatchQuery bq =
new MessageNameToStringSidBatchQuery(++SeqNo, listVmNames);
SendParallel(conn, bq.Serialize, replyType, bq.SeqNo);
}
WaitForParallelReplies(replyType, Parameters.DEFAULT_MESSAGE_TIMEOUT_MS);
} // lock
}
//
// Set the SID for each RAP. Any trusted account names will be translated to SIDS at agent.
//
foreach (Endpoint nDtls in listEndpoints)
{
if (nDtls.SidOrAccount.ToUpper().StartsWith("S-1-5-"))
nDtls.StringSid = nDtls.SidOrAccount.ToUpper();
else if (nDtls.Tag.ToUpper().Equals("H-HYPERV-VOL"))
nDtls.StringSid = nDtls.SidOrAccount.ToUpper();
else
nDtls.StringSid = DictVmNameToSid[MakeVmKey(nDtls.HyperVserver, nDtls.SidOrAccount)];
}
//
// Initialize RAPs and RAP lookup, and point Connections at each RAP.
// More than one Connection may ref a RAP (e.g. Oktofs and IoFlow both).
// Note RAPs not yet bound to flows.
//
ListRap = new List<RAP>();
for (int i = 0; i < listEndpoints.Count; i++)
{
string locServername = listEndpoints[i].FilterServer;
RAP rap = new RAP(listEndpoints[i], listEndpoints[i]);
Connection conn = null;
if (AgentNameToConn.TryGetValue(locServername, out conn))
conn.ListRap.Add(rap);
if (IoFlowNameToConn.TryGetValue(locServername, out conn))
conn.ListRap.Add(rap);
DictEpKeyToRap[listEndpoints[i].Key] = rap;
ListRap.Add(rap);
}
Console.WriteLine("InitListRap made {0} RAPs", ListRap.Count);
return ListRap;
}
public MessageRapFsCreate(uint seqNo, RAP[] arrayRapArg)
: base(0, seqNo, (byte)MessageTypes.MessageTypeRapFsCreate)
{
ArrayRapArg = arrayRapArg;
int length = (ArrayRapArg.Length * SIZEOF_RAP_FS_ARG);
Debug.Assert(length <= int.MaxValue);
Length = (uint)length;
}