535 lines
11 KiB
C++
535 lines
11 KiB
C++
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#include "stdafx.h"
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VOID
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IcqWriteCompletionRoutine
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(
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ULONG ErrorCode,
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ULONG BytesTransferred,
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PNH_BUFFER Bufferp
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)
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/*++
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Routine Description:
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A generic Write Completion Routine.
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Arguments:
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none.
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Return Value:
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--*/
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{
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PCNhSock Socketp = Bufferp->Socketp;
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ICQ_TRC(TM_IO, TL_DUMP, ("-- WRITE COMPLETION ROUTINE --"));
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NhReleaseBuffer(Bufferp);
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//Dereference Interface;
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DEREF_COMPONENT( Socketp, eRefIoWrite);
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DEREF_COMPONENT( g_IcqComponentReferencep, eRefIoWrite);
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}
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VOID
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ReadServerCompletionRoutine
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(
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ULONG ErrorCode,
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ULONG BytesTransferred,
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PNH_BUFFER Bufferp
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)
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/*++
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Routine Description:
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Reads the Server Responses to Client packets
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and then multiplexes this responses to the approprate client
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which was given in the Context information
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Arguments:
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none.
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Return Value:
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--*/
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{
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PICQ_CLIENT IcqClientp = NULL;
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PCNhSock Socketp = NULL;
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ULONG Error = NO_ERROR;
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ICQ_TRC(TM_IO, TL_ERROR, (" "));
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PROFILER(TM_IO, TL_TRACE, ("> UDP-SERVER - READ "));
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if(Bufferp is NULL) return;
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//
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// Get the Client Information
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Socketp = Bufferp->Socketp;
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IcqClientp = (PICQ_CLIENT)Bufferp->Context;
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ASSERT(IcqClientp != NULL);
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if(ErrorCode)
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{
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// Re-issue a read operation if it is not critical Error.
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ICQ_TRC(TM_IO, TL_ERROR,
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("** !! READ ERROR in Server -> Client (UDP) !! **"));
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NhReleaseBuffer(Bufferp);
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//ErrorOut();
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}
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else // we need the context information
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{
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//
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// reissue read first
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//
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REF_COMPONENT( IcqClientp, eRefIoRead );
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Error = Socketp->NhReadDatagramSocket(g_IcqComponentReferencep,
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NULL,
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ReadServerCompletionRoutine,
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IcqClientp,
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NULL);
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if(Error)
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{
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ICQ_TRC(TM_IO, TL_ERROR, ("READ ERROR"));
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DEREF_COMPONENT( IcqClientp, eRefIoRead );
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}
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// multiplex the data
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Error = IcqClientp->ServerRead(Bufferp, 0, 0);
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if(Error)
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{
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NhReleaseBuffer( Bufferp );
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}
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}
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// DEREFERENCING
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DEREF_COMPONENT( Socketp, eRefIoRead );
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DEREF_COMPONENT( g_IcqComponentReferencep, eRefIoRead );
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DEREF_COMPONENT( IcqClientp, eRefIoRead );
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}
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VOID
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IcqReadClientUdpCompletionRoutine
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(
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ULONG ErrorCode,
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ULONG BytesTransferred,
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PNH_BUFFER Bufferp
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)
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/*++
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Routine Description:
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This is the READ - DISPATCHER for the UDP
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Clients sending packets to the server will be caught here..
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it will dispatch the packet to the appropriate ICQ client objects READER
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Arguments:
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none.
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Return Value:
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--*/
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{
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PCNhSock Socketp = Bufferp->Socketp;
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ULONG Error = NO_ERROR;
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// HANDLE DynamicRedirectHandle = (HANDLE) Bufferp->Context;
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ICQ_TRC(TM_IO, TL_ERROR, (" "));
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PROFILER(TM_IO, TL_TRACE,("UDP-CLIEN-READ DATA CAME from %s e(%hu)",
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INET_NTOA(Bufferp->ReadAddress.sin_addr.S_un.S_addr), ErrorCode));
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do
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{
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if(ErrorCode)
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{
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// Re-issue a read operation if it is not critical Error.
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ICQ_TRC(TM_IO, TL_ERROR,
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("** !! CLIENT~SERVER READ ERROR - Deletin all the Client Entries"));
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Error = g_IcqPrxp->ReadFromClientCompletionRoutine(ErrorCode,
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BytesTransferred,
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Bufferp);
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break;
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}
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else
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{
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// Re-issue a read operation.
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Error = Socketp->NhReadDatagramSocket(g_IcqComponentReferencep,
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NULL,
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IcqReadClientUdpCompletionRoutine,
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NULL,// DynamicRedirectHandle,
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NULL);
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if(Error)
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{
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ICQ_TRC(TM_IO, TL_ERROR,("TREAD !!> REISsUE READ ERROR "));
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break;
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}
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g_IcqPrxp->ReadFromClientCompletionRoutine(ErrorCode,
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BytesTransferred,
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Bufferp);
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} // else for if (ErrorCode)
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} while ( FALSE );
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DEREF_COMPONENT( Socketp, eRefIoRead);
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DEREF_COMPONENT( g_IcqComponentReferencep, eRefIoRead);
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}
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//
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// CLIENT - RELATED IO COMPLETION ROUTINES
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//
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VOID
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IcqPeerConnectionCompletionRoutine
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(
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ULONG ErrorCode,
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ULONG BytesTransferred,
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PNH_BUFFER Bufferp
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)
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/*++
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Routine Description:
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Arguments:
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none.
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Return Value:
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--*/
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{
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PCNhSock Socketp = NULL;
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PICQ_PEER IcqPeerp = NULL;
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ULONG Error;
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// ASSERT(Bufferp);
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Socketp = Bufferp->Socketp;
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IcqPeerp = reinterpret_cast<PICQ_PEER>(Bufferp->Context);
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// IcqClientp = reinterpret_cast<PICQ_CLIENT>(Bufferp->Context2);
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ICQ_TRC(TM_IO, TL_TRACE, ("> IcqPeerConnectionCompletionRoutine"));
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// ASSERT on all of them.
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do
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{
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if(ErrorCode)
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{
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// Do - we need it?
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// Delete the Shadow mapping
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//
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// if can't connect then Delete the existing Socket to which we have
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// established connection.
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//
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if(IcqPeerp->MappingDirection is IcqFlagOutgoing)
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{
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STOP_COMPONENT(IcqPeerp->ToClientSocketp);
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//DEREFERENCE_COMPONENT(IcqPeerp->ToClientSocketp);
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}
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else // incoming
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{
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STOP_COMPONENT(IcqPeerp->ToPeerSocketp);
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//DEREFERENCE_COMPONENT(IcqPeerp->ToClientSocketp);
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}
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break;
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}
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else
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{
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ULONG srcIp;
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USHORT srcPort;
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Socketp->NhQueryRemoteEndpointSocket(&srcIp, &srcPort);
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//
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//
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ICQ_TRC(TM_IO, TL_TRACE,
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("Connected to - Remote end is at %s:%hu",
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INET_NTOA(srcIp), htons(srcPort)));
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//
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// Activate The Connection
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// Issue the Read Operations on both Sockets with the Peer as their
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// Context
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//
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if(IcqPeerp->MappingDirection is IcqFlagOutgoing)
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{
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IcqPeerp->ToPeerSocketp = Socketp;
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ICQ_TRC(TM_MSG, TL_DUMP,
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("Mapping is outGoing.. this socket is to the peer"));
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}
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else
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{
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IcqPeerp->ToClientSocketp = Socketp;
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}
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ICQ_TRC(TM_IO, TL_TRACE, ("Issuing firstRead"));
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Socketp = IcqPeerp->ToClientSocketp;
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REF_COMPONENT( IcqPeerp, eRefIoRead );
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Error = Socketp->NhReadStreamSocket
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(
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g_IcqComponentReferencep,
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NULL,
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ICQ_BUFFER_SIZE, // we should give a size
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0,
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IcqPeerReadCompletionRoutine,
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IcqPeerp,
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NULL
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);
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if(Error)
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{
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ErrorOut();
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ICQ_TRC(TM_MSG, TL_ERROR, (" ERROR - Read failed on ToClient Sock"));
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DEREF_COMPONENT( IcqPeerp, eRefIoRead );
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break;
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}
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//
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// The other read operation
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//
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ICQ_TRC(TM_IO, TL_TRACE, ("Issuing second Read"));
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Socketp = IcqPeerp->ToPeerSocketp;
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REF_COMPONENT( IcqPeerp, eRefIoRead );
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Error = Socketp->NhReadStreamSocket
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(
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g_IcqComponentReferencep,
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NULL,
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ICQ_BUFFER_SIZE,
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0,
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IcqPeerReadCompletionRoutine,
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IcqPeerp,
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NULL
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);
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if(Error)
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{
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ErrorOut();
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ICQ_TRC(TM_MSG, TL_ERROR, (" ERROR - Read failed on ToPeer Sock"));
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STOP_COMPONENT(IcqPeerp->ToClientSocketp); // reference will be cleared later
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DEREF_COMPONENT( IcqPeerp, eRefIoRead);
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DEREF_COMPONENT( IcqPeerp, eRefIoRead );
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break;
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}
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//
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// Reference the ICQ_PEER twice due to two read issues
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IcqPeerp->bActivated = TRUE;
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}
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} while (FALSE);
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DEREF_COMPONENT( Bufferp->Socketp, eRefIoConnect );
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DEREF_COMPONENT( IcqPeerp, eRefIoConnect);
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DEREF_COMPONENT( g_IcqComponentReferencep, eRefIoConnect );
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}
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VOID
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IcqPeerReadCompletionRoutine
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(
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ULONG ErrorCode,
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ULONG BytesTransferred,
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PNH_BUFFER Bufferp
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)
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/*++
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Routine Description:
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Reads TCP data between the peers. Within these flows there will be
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a place where the Data channel is negotiated.
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Arguments:
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none.
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Return Value:
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--*/
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{
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PICQ_PEER IcqPeerp = NULL;
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PCNhSock Socketp = NULL;
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PCNhSock OtherSocketp = NULL;
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ULONG Error = NO_ERROR;
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// ASSeRT(Bufferp);
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Socketp = Bufferp->Socketp;
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IcqPeerp = reinterpret_cast<PICQ_PEER>(Bufferp->Context);
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ICQ_TRC(TM_IO, TL_TRACE,
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("> IcqPeerReadCompletionRoutine E:(%X) D:(%u)",
|
||
|
|
ErrorCode, BytesTransferred));
|
||
|
|
|
||
|
|
do
|
||
|
|
{
|
||
|
|
if( (ErrorCode != 0) ||
|
||
|
|
((ErrorCode== 0) && (BytesTransferred == 0))
|
||
|
|
)
|
||
|
|
{
|
||
|
|
|
||
|
|
ICQ_TRC(TM_IO, TL_ERROR, ("Stoppping the Peer SESSION"));
|
||
|
|
|
||
|
|
IcqPeerp->EndPeerSessionForClient(Socketp);
|
||
|
|
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
if(BytesTransferred)
|
||
|
|
{
|
||
|
|
OtherSocketp = IcqPeerp->ToClientSocketp;
|
||
|
|
|
||
|
|
ICQ_TRC(TM_IO, TL_TRACE,
|
||
|
|
(" Regular Data from a Peer(%u)/Client(%s) Socket",
|
||
|
|
IcqPeerp->PeerUIN, // Peer-UIN
|
||
|
|
INET_NTOA(IcqPeerp->iKey1))); // Client-IP
|
||
|
|
|
||
|
|
//
|
||
|
|
// Determine which direction this Socket is from..
|
||
|
|
//
|
||
|
|
if(OtherSocketp is Socketp)
|
||
|
|
{
|
||
|
|
//
|
||
|
|
// NOTE: if it is from the ToClientSocketp then Process it
|
||
|
|
//
|
||
|
|
IcqPeerp->ProcessOutgoingPeerMessage(Bufferp->Buffer,
|
||
|
|
Bufferp->BytesTransferred);
|
||
|
|
|
||
|
|
OtherSocketp = IcqPeerp->ToPeerSocketp;
|
||
|
|
}
|
||
|
|
|
||
|
|
// then forward it to the other side by simply writing it .
|
||
|
|
Error = OtherSocketp->NhWriteStreamSocket(g_IcqComponentReferencep,
|
||
|
|
Bufferp,
|
||
|
|
BytesTransferred,
|
||
|
|
0,
|
||
|
|
IcqWriteCompletionRoutine,
|
||
|
|
NULL,
|
||
|
|
NULL);
|
||
|
|
if(Error)
|
||
|
|
{
|
||
|
|
ICQ_TRC(TM_MSG, TL_ERROR,
|
||
|
|
("Error - In writing to the other side"));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// Issue another Read operation
|
||
|
|
//
|
||
|
|
REF_COMPONENT( IcqPeerp, eRefIoRead );
|
||
|
|
|
||
|
|
Error = Socketp->NhReadStreamSocket(g_IcqComponentReferencep,
|
||
|
|
NULL,
|
||
|
|
ICQ_BUFFER_SIZE,
|
||
|
|
0,
|
||
|
|
IcqPeerReadCompletionRoutine,
|
||
|
|
IcqPeerp,
|
||
|
|
NULL);
|
||
|
|
if(Error)
|
||
|
|
{
|
||
|
|
DEREF_COMPONENT( IcqPeerp, eRefIoRead);
|
||
|
|
|
||
|
|
ICQ_TRC(TM_MSG, TL_ERROR, ("Peer connection no more??"));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} while (FALSE);
|
||
|
|
|
||
|
|
DEREF_COMPONENT( Socketp, eRefIoRead );
|
||
|
|
|
||
|
|
DEREF_COMPONENT( IcqPeerp, eRefIoRead );
|
||
|
|
|
||
|
|
DEREF_COMPONENT( g_IcqComponentReferencep, eRefIoRead );
|
||
|
|
} // End of *IcqPeerReadCompletionRoutine*
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|