/// <summary>
/// Send message MSG_NEGO_REQ
/// </summary>
public void SendMsgNegoReq()
{
PccrrNegoRequestPacket packet = this.pccrrStack.CreateMsgNegoRequest(this.minSupV, this.maxSupV, this.cryptoAlgo, MsgType_Values.MSG_NEGO_REQ, this.protoVer);
this.pccrrStack.SendPacket(packet, new TimeSpan(0, 0, this.timeout));
PccrrPacket respMSG = this.pccrrStack.ExpectPacket();
PccrrNegoResponsePacket pccrrNegoResponsePacket = respMSG as PccrrNegoResponsePacket;
MSG_NEGO_RESP msgNegoResp = pccrrNegoResponsePacket.MsgNegoResp;
MESSAGE_HEADER messageHeader = pccrrNegoResponsePacket.MessageHeader;
TRANSPORT_RESPONSE_HEADER transportRespH = pccrrNegoResponsePacket.TransportResponseHeader;
RESPONSE_MESSAGE respMessage = new RESPONSE_MESSAGE();
respMessage.MESSAGEBODY = msgNegoResp;
respMessage.MESSAGEHEADER = messageHeader;
respMessage.TRANSPORTRESPONSEHEADER = transportRespH;
this.uiPayload = Marshal.SizeOf(messageHeader) + Marshal.SizeOf(msgNegoResp);
this.VerifyHttpResponse();
PccrrBothRoleCaptureCode.CaptureHttpRequirements();
this.VerifyMsgNegoResp(msgNegoResp);
this.VerifyMessageHeader(messageHeader);
PccrrBothRoleCaptureCode.CaptureMessageHeaderRequirements(messageHeader, this.uiPayload);
this.VerifyTransportResponseHeader(transportRespH);
PccrrBothRoleCaptureCode.CaptureMessageRequirements();
this.VerifyResponseMessage(respMessage);
this.ReceiveMsgNegoResp();
}
/// <summary>
/// Send message MSG_GETBLKLIST.
/// </summary>
/// <param name="sid">segment id.</param>
/// <param name="blockRang">Block ranges client wants to get.</param>
/// <param name="isVersionSupported">The version in message is supported by server or not.</param>
public void SendMsgGetBlkList(byte[] sid, BLOCKRANGE[] blockRang, bool isVersionSupported)
{
PccrrGETBLKLISTRequestPacket packet;
BLOCK_RANGE[] blockRanges = Helper.ConvertToStackBLOCKRANGEArray(blockRang);
if (!isVersionSupported)
{
packet = this.pccrrStack.CreateMsgGetBlkListRequest(sid, blockRanges, this.cryptoAlgo, MsgType_Values.MSG_GETBLKLIST, this.protoErrorVer);
}
else
{
packet = this.pccrrStack.CreateMsgGetBlkListRequest(sid, blockRanges, this.cryptoAlgo, MsgType_Values.MSG_GETBLKLIST, this.protoVer);
}
this.pccrrStack.SendPacket(packet, new TimeSpan(0, 0, this.timeout));
PccrrPacket respMSG = this.pccrrStack.ExpectPacket();
if (!isVersionSupported)
{
PccrrNegoResponsePacket pccrrNegoResponsePacket = respMSG as PccrrNegoResponsePacket;
if (pccrrNegoResponsePacket != null)
{
this.ReceiveMsgNegoResp();
}
}
else
{
PccrrBLKLISTResponsePacket pccrrBLKLISTResponsePacket = respMSG as PccrrBLKLISTResponsePacket;
MSG_BLKLIST msgBLKLIST = pccrrBLKLISTResponsePacket.MsgBLKLIST;
MESSAGE_HEADER messageHeader = pccrrBLKLISTResponsePacket.MessageHeader;
TRANSPORT_RESPONSE_HEADER transportRespH = pccrrBLKLISTResponsePacket.TransportResponseHeader;
RESPONSE_MESSAGE respMessage = new RESPONSE_MESSAGE();
respMessage.MESSAGEBODY = msgBLKLIST;
respMessage.MESSAGEHEADER = messageHeader;
respMessage.TRANSPORTRESPONSEHEADER = transportRespH;
if (msgBLKLIST.BlockRanges.Length != 0)
{
BLOCK_RANGE blockRange = pccrrBLKLISTResponsePacket.MsgBLKLIST.BlockRanges[0];
PccrrBothRoleCaptureCode.CaptureBlockRangeRequirements(blockRange);
}
this.VerifyMsgBlkList(msgBLKLIST);
PccrrBothRoleCaptureCode.CaptureCommonDataTypesRequirements(msgBLKLIST);
this.VerifyResponseMessage(respMessage);
BLOCKRANGE[] blkRanges = Helper.ConvertFromStackBLOCKRANGEArray(msgBLKLIST.BlockRanges);
this.ReceiveMsgBlkList(msgBLKLIST.BlockRangeCount, blkRanges, msgBLKLIST.NextBlockIndex);
}
}
/// <summary>
/// Verify the received message from client.
/// </summary>
/// <param name="remoteAddr">The remote address.</param>
/// <param name="pccrrPacket">The pccrrPacket.</param>
private void RetrievalTransport_Receive(IPEndPoint remoteAddr, PccrrPacket pccrrPacket)
{
PccrrGETBLKSRequestPacket pccrrGETBLKSRequestPacket = pccrrPacket as PccrrGETBLKSRequestPacket;
if (pccrrGETBLKSRequestPacket != null)
{
MSG_GETBLKS msgGETBLKS = pccrrGETBLKSRequestPacket.MsgGetBLKS;
MESSAGE_HEADER messageHEADER = pccrrGETBLKSRequestPacket.MessageHeader;
this.sid = msgGETBLKS.SegmentID;
REQUEST_MESSAGE requestMESSAGE = new REQUEST_MESSAGE();
requestMESSAGE.MESSAGEBODY = msgGETBLKS;
requestMESSAGE.MESSAGEHEADER = messageHEADER;
this.uiPayload = Marshal.SizeOf(messageHEADER) + Marshal.SizeOf(msgGETBLKS) + 24;
PccrrBothRoleCaptureCode.CaptureBlockRangeRequirements(msgGETBLKS.ReqBlockRanges[0]);
PccrrBothRoleCaptureCode.CaptureMessageHeaderRequirements(messageHEADER, this.uiPayload);
this.VerifyGetBlocks(msgGETBLKS);
this.VerifyRequestMessage(requestMESSAGE);
PccrrBothRoleCaptureCode.CaptureSegmentIdRequirements(msgGETBLKS.SegmentID);
PccrrBothRoleCaptureCode.CaptureHttpRequirements();
PccrrBothRoleCaptureCode.CaptureMessageRequirements();
this.ReceiveMsgGetBlk(msgGETBLKS.ReqBlockRanges[0].Index);
}
else
{
PccrrGETBLKLISTRequestPacket pccrrGETBLKLISTRequestPacket = pccrrPacket as PccrrGETBLKLISTRequestPacket;
if (pccrrGETBLKLISTRequestPacket != null)
{
MSG_GETBLKLIST msgGETBLKLIST = pccrrGETBLKLISTRequestPacket.MsgGetBLKLIST;
this.sid = msgGETBLKLIST.SegmentID;
this.VerifyGetBlkList(msgGETBLKLIST);
PccrrBothRoleCaptureCode.CaptureCommonDataTypesRequirements(msgGETBLKLIST);
_BLOCKRANGE[] blockRanges = ClientHelper.ConvertFromStackBLOCKRANGEArray(msgGETBLKLIST.NeededBlockRanges);
this.ReceiveMsgGetBlkList(blockRanges);
}
else
{
this.ReceiveMsgNegoReq();
}
}
}
void pccrrServer_MessageArrived(System.Net.IPEndPoint sender, PccrrPacket pccrrPacket)
{
var pccrrNegoRequest = pccrrPacket as PccrrNegoRequestPacket;
if (pccrrNegoRequest != null)
{
HandlePccrrNegoRequestPacket(pccrrNegoRequest);
goto logevent;
}
var pccrrGetBlkListRequest = pccrrPacket as PccrrGETBLKLISTRequestPacket;
if (pccrrGetBlkListRequest != null)
{
HandlePccrrGETBLKLISTRequestPacket(pccrrGetBlkListRequest);
goto logevent;
}
var pccrrGetBlkRequest = pccrrPacket as PccrrGETBLKSRequestPacket;
if (pccrrGetBlkRequest != null)
{
HandlePccrrGETBLKSRequestPacket(pccrrGetBlkRequest);
goto logevent;
}
var pccrrGetSegListRequest = pccrrPacket as PccrrGetSegListRequestPacket;
if (pccrrGetSegListRequest != null)
{
HandlePccrrGetSegListRequestPacket(pccrrGetSegListRequest);
goto logevent;
}
// Unknown packet
throw new NotImplementedException("Unknown PCCRR message type " + pccrrPacket.PacketType);
logevent:
eventQueue.LogEvent(typeof(PccrrServer).GetEvent("MessageArrived"), sender, pccrrPacket);
}
/// <summary>
/// The handle of MessageArrivedEventArgs happened.
/// </summary>
/// <param name="remoteAddr">Represents the remote endpoint address</param>
/// <param name="pccrrPacket">The received pccrrPacket, used to judge whether
/// it is a PccrrGETBLKLISTRequestPacket</param>
private void RetrievalTransport_Receive(IPEndPoint remoteAddr, PccrrPacket pccrrPacket)
{
if (pccrrPacket.PacketType == MsgType_Values.MSG_GETBLKLIST)
{
PccrrGETBLKLISTRequestPacket package = (PccrrGETBLKLISTRequestPacket)pccrrPacket;
int port = package.Uri.Port;
byte[] segmentID = package.MsgGetBLKLIST.SegmentID;
this.ReceivePccrrRequestHandler(this, new ReceivedPccrrRequestEventArg(port, segmentID));
}
else if (pccrrPacket.PacketType == MsgType_Values.MSG_GETBLKS)
{
PccrrGETBLKSRequestPacket package = (PccrrGETBLKSRequestPacket)pccrrPacket;
int port = package.Uri.Port;
byte[] segmentID = package.MsgGetBLKS.SegmentID;
this.ReceivePccrrRequestHandler(this, new ReceivedPccrrRequestEventArg(port, segmentID));
}
}
/// <summary>
/// Send message MSG_GETBLKS
/// </summary>
/// <param name="sid">segment id.</param>
/// <param name="blockRang">Block ranges client wants to get</param>
/// <param name="isVersionSupported">The version in this message is supported in server.</param>
public void SendMsgGetBlks(byte[] sid, BLOCKRANGE[] blockRang, bool isVersionSupported)
{
PccrrGETBLKSRequestPacket packet;
BLOCK_RANGE[] blockRanges = Helper.ConvertToStackBLOCKRANGEArray(blockRang);
if (!isVersionSupported)
{
packet = this.pccrrStack.CreateMsgGetBlksRequest(sid, this.cryptoAlgo, MsgType_Values.MSG_GETBLKS, this.protoErrorVer);
}
else
{
packet = this.pccrrStack.CreateMsgGetBlksRequest(sid, this.cryptoAlgo, MsgType_Values.MSG_GETBLKS, this.protoVer);
}
for (int i = 0; i < blockRanges.Length; i++)
{
if (blockRanges.Length == 1)
{
packet.MsgGetBLKS.ReqBlockRanges[i].Index = blockRanges[i].Index;
packet.MsgGetBLKS.ReqBlockRanges[i].Count = blockRanges[i].Count;
}
else
{
MSG_GETBLKS msgGETBLKS = packet.MsgGetBLKS;
msgGETBLKS.ReqBlockRanges = new BLOCK_RANGE[blockRanges.Length];
msgGETBLKS.ReqBlockRangeCount = (uint)blockRanges.Length;
packet.MsgGetBLKS = msgGETBLKS;
packet.MsgGetBLKS.ReqBlockRanges[i].Index = blockRanges[i].Index;
packet.MsgGetBLKS.ReqBlockRanges[i].Count = blockRanges[i].Count;
}
}
this.pccrrStack.SendPacket(packet, new TimeSpan(0, 0, this.timeout));
PccrrPacket respMSG = this.pccrrStack.ExpectPacket();
if (!isVersionSupported)
{
PccrrNegoResponsePacket pccrrNegoResponsePacket = respMSG as PccrrNegoResponsePacket;
if (pccrrNegoResponsePacket != null)
{
this.ReceiveMsgNegoResp();
}
}
else
{
PccrrBLKResponsePacket pccrrBLKResponsePacket = respMSG as PccrrBLKResponsePacket;
MSG_BLK msgBLK = pccrrBLKResponsePacket.MsgBLK;
MESSAGE_HEADER messageHeader = pccrrBLKResponsePacket.MessageHeader;
TRANSPORT_RESPONSE_HEADER transportRespH = pccrrBLKResponsePacket.TransportResponseHeader;
RESPONSE_MESSAGE respMessage = new RESPONSE_MESSAGE();
respMessage.MESSAGEBODY = msgBLK;
respMessage.MESSAGEHEADER = messageHeader;
respMessage.TRANSPORTRESPONSEHEADER = transportRespH;
this.VerifyMsgBlk(msgBLK);
PccrrBothRoleCaptureCode.CaptureSegmentIdRequirements(msgBLK.SegmentId);
this.VerifyResponseMessage(respMessage);
bool isSizeOfBlockZero = false;
if (msgBLK.SizeOfBlock == 0)
{
isSizeOfBlockZero = true;
}
else
{
isSizeOfBlockZero = false;
}
bool isBlockEmpty = false;
if (msgBLK.Block.Length == 0)
{
isBlockEmpty = true;
}
else
{
isBlockEmpty = false;
}
CryptoAlgoIdValues crypAlgoId = Helper.ConvertFromStackCryptoAlgoIdValues(pccrrBLKResponsePacket.MessageHeader.CryptoAlgoId);
this.ReceiveMsgBlk(msgBLK.BlockIndex, msgBLK.NextBlockIndex, isSizeOfBlockZero, isBlockEmpty, crypAlgoId);
}
}