Devices/Serial/DrvTCP.cpp

0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync/* $Id$ */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync/** @file
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * TCP socket driver implementing the IStream interface.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync/*
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * Copyright (C) 2006-2015 Oracle Corporation.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync *
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * This file was contributed by Alexey Eromenko (derived from DrvNamedPipe)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync *
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * available from http://www.virtualbox.org. This file is free software;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * you can redistribute it and/or modify it under the terms of the GNU
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * General Public License (GPL) as published by the Free Software
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync/*******************************************************************************
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync*   Header Files                                                               *
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync*******************************************************************************/
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#define LOG_GROUP LOG_GROUP_DRV_TCP
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#include <VBox/vmm/pdmdrv.h>
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#include <iprt/assert.h>
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#include <iprt/file.h>
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#include <iprt/stream.h>
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#include <iprt/alloc.h>
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#include <iprt/string.h>
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#include <iprt/semaphore.h>
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#include <iprt/uuid.h>
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#include <stdlib.h>
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#include "VBoxDD.h"
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#ifdef RT_OS_WINDOWS
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync# include <ws2tcpip.h>
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#else /* !RT_OS_WINDOWS */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync# include <errno.h>
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync# include <unistd.h>
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync# include <sys/types.h>
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync# include <sys/socket.h>
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync# include <netinet/in.h>
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync# include <netdb.h>
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync# ifndef SHUT_RDWR /* OS/2 */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#  define SHUT_RDWR 3
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync# endif
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#endif /* !RT_OS_WINDOWS */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#ifndef SHUT_RDWR
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync# ifdef SD_BOTH
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#  define SHUT_RDWR SD_BOTH
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync# else
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#  define SHUT_RDWR 2
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync# endif
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#endif
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync/*******************************************************************************
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync*   Defined Constants And Macros                                               *
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync*******************************************************************************/
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync/** Converts a pointer to DRVTCP::IMedia to a PDRVTCP. */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#define PDMISTREAM_2_DRVTCP(pInterface) ( (PDRVTCP)((uintptr_t)pInterface - RT_OFFSETOF(DRVTCP, IStream)) )
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync/*******************************************************************************
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync*   Structures and Typedefs                                                    *
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync*******************************************************************************/
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync/**
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * TCP driver instance data.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync *
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * @implements PDMISTREAM
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsynctypedef struct DRVTCP
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync{
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /** The stream interface. */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    PDMISTREAM          IStream;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /** Pointer to the driver instance. */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    PPDMDRVINS          pDrvIns;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /** Pointer to the TCP server address:port or port only. (Freed by MM) */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    char                *pszLocation;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /** Flag whether VirtualBox represents the server or client side. */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    bool                fIsServer;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /** Socket handle of the TCP socket for server. */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    int                 TCPServer;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /** Socket handle of the TCP socket connection. */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    int                 TCPConnection;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /** Thread for listening for new connections. */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    RTTHREAD            ListenThread;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /** Flag to signal listening thread to shut down. */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    bool volatile       fShutdown;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync} DRVTCP, *PDRVTCP;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync/*******************************************************************************
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync*   Internal Functions                                                         *
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync*******************************************************************************/
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync/** @copydoc PDMISTREAM::pfnRead */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsyncstatic DECLCALLBACK(int) drvTCPRead(PPDMISTREAM pInterface, void *pvBuf, size_t *pcbRead)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync{
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    int rc = VINF_SUCCESS;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    PDRVTCP pThis = PDMISTREAM_2_DRVTCP(pInterface);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    LogFlow(("%s: pvBuf=%p *pcbRead=%#x (%s)\n", __FUNCTION__, pvBuf, *pcbRead, pThis->pszLocation));
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    Assert(pvBuf);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    if (pThis->TCPConnection != -1)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    {
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        ssize_t cbReallyRead;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        unsigned cbBuf = (unsigned)*pcbRead;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        cbReallyRead = recv(pThis->TCPConnection, (char *)pvBuf, cbBuf, 0);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        if (cbReallyRead == 0)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        {
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            int tmp = pThis->TCPConnection;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            pThis->TCPConnection = -1;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#ifdef RT_OS_WINDOWS
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            closesocket(tmp);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#else
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            close(tmp);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#endif
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        }
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        else if (cbReallyRead == -1)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        {
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            cbReallyRead = 0;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            rc = RTErrConvertFromErrno(errno);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        }
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        *pcbRead = cbReallyRead;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    }
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    else
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    {
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        RTThreadSleep(100);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        *pcbRead = 0;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    }
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    LogFlow(("%s: *pcbRead=%zu returns %Rrc\n", __FUNCTION__, *pcbRead, rc));
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    return rc;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync}
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync/** @copydoc PDMISTREAM::pfnWrite */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsyncstatic DECLCALLBACK(int) drvTCPWrite(PPDMISTREAM pInterface, const void *pvBuf, size_t *pcbWrite)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync{
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    int rc = VINF_SUCCESS;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    PDRVTCP pThis = PDMISTREAM_2_DRVTCP(pInterface);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    LogFlow(("%s: pvBuf=%p *pcbWrite=%#x (%s)\n", __FUNCTION__, pvBuf, *pcbWrite, pThis->pszLocation));
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    Assert(pvBuf);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    if (pThis->TCPConnection != -1)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    {
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        ssize_t cbWritten;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        unsigned cbBuf = (unsigned)*pcbWrite;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        cbWritten = send(pThis->TCPConnection, (const char *)pvBuf, cbBuf, 0);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        if (cbWritten == 0)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        {
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            int tmp = pThis->TCPConnection;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            pThis->TCPConnection = -1;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#ifdef RT_OS_WINDOWS
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            closesocket(tmp);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#else
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            close(tmp);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#endif
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        }
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        else if (cbWritten == -1)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        {
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            cbWritten = 0;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            rc = RTErrConvertFromErrno(errno);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        }
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        *pcbWrite = cbWritten;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    }
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    LogFlow(("%s: returns %Rrc\n", __FUNCTION__, rc));
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    return rc;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync}
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync/**
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * @interface_method_impl{PDMIBASE,pfnQueryInterface}
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsyncstatic DECLCALLBACK(void *) drvTCPQueryInterface(PPDMIBASE pInterface, const char *pszIID)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync{
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    PPDMDRVINS      pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    PDRVTCP         pThis   = PDMINS_2_DATA(pDrvIns, PDRVTCP);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    PDMIBASE_RETURN_INTERFACE(pszIID, PDMISTREAM, &pThis->IStream);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    return NULL;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync}
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync/* -=-=-=-=- listen thread -=-=-=-=- */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync/**
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * Receive thread loop.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync *
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * @returns 0 on success.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * @param   ThreadSelf  Thread handle to this thread.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * @param   pvUser      User argument.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsyncstatic DECLCALLBACK(int) drvTCPListenLoop(RTTHREAD ThreadSelf, void *pvUser)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync{
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    PDRVTCP pThis = (PDRVTCP)pvUser;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    int     rc = VINF_SUCCESS;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    while (RT_LIKELY(!pThis->fShutdown))
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    {
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        if (listen(pThis->TCPServer, 0) == -1)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        {
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            rc = RTErrConvertFromErrno(errno);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            LogRel(("DrvTCP%d: listen failed, rc=%Rrc\n", pThis->pDrvIns->iInstance, rc));
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            break;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        }
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        int s = accept(pThis->TCPServer, NULL, NULL);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        if (s == -1)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        {
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            rc = RTErrConvertFromErrno(errno);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            LogRel(("DrvTCP%d: accept failed, rc=%Rrc\n", pThis->pDrvIns->iInstance, rc));
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            break;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        }
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        if (pThis->TCPConnection != -1)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        {
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            LogRel(("DrvTCP%d: only single connection supported\n", pThis->pDrvIns->iInstance));
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#ifdef RT_OS_WINDOWS
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            closesocket(s);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#else
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            close(s);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#endif
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        }
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        else
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            pThis->TCPConnection = s;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    }
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    return VINF_SUCCESS;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync}
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync/* -=-=-=-=- PDMDRVREG -=-=-=-=- */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync/**
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * Common worker for drvTCPPowerOff and drvTCPDestructor.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync *
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * @param   pThis               The instance data.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsyncstatic void drvTCPShutdownListener(PDRVTCP pThis)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync{
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /*
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync     * Signal shutdown of the listener thread.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync     */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    pThis->fShutdown = true;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    if (    pThis->fIsServer
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        &&  pThis->TCPServer != -1)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    {
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        int rc = shutdown(pThis->TCPServer, SHUT_RDWR);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        AssertRC(rc == 0); NOREF(rc);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#ifdef RT_OS_WINDOWS
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        rc = closesocket(pThis->TCPServer);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#else
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        rc = close(pThis->TCPServer);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#endif
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        AssertRC(rc == 0);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        pThis->TCPServer = -1;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    }
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync}
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync/**
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * Power off a TCP socket stream driver instance.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync *
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * This does most of the destruction work, to avoid ordering dependencies.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync *
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * @param   pDrvIns     The driver instance data.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsyncstatic DECLCALLBACK(void) drvTCPPowerOff(PPDMDRVINS pDrvIns)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync{
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    PDRVTCP pThis = PDMINS_2_DATA(pDrvIns, PDRVTCP);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    LogFlow(("%s: %s\n", __FUNCTION__, pThis->pszLocation));
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    drvTCPShutdownListener(pThis);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync}
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync/**
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * Destruct a TCP socket stream driver instance.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync *
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * Most VM resources are freed by the VM. This callback is provided so that
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * any non-VM resources can be freed correctly.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync *
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * @param   pDrvIns     The driver instance data.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsyncstatic DECLCALLBACK(void) drvTCPDestruct(PPDMDRVINS pDrvIns)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync{
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    PDRVTCP pThis = PDMINS_2_DATA(pDrvIns, PDRVTCP);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    LogFlow(("%s: %s\n", __FUNCTION__, pThis->pszLocation));
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    PDMDRV_CHECK_VERSIONS_RETURN_VOID(pDrvIns);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    drvTCPShutdownListener(pThis);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /*
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync     * While the thread exits, clean up as much as we can.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync     */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    Assert(pThis->TCPServer == -1);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    if (pThis->TCPConnection != -1)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    {
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        int rc = shutdown(pThis->TCPConnection, SHUT_RDWR);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        AssertRC(rc == 0); NOREF(rc);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#ifdef RT_OS_WINDOWS
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        rc = closesocket(pThis->TCPConnection);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#else
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        rc = close(pThis->TCPConnection);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync#endif
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        Assert(rc == 0);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        pThis->TCPConnection = -1;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    }
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    if (   pThis->fIsServer
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        && pThis->pszLocation)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        RTFileDelete(pThis->pszLocation);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    MMR3HeapFree(pThis->pszLocation);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    pThis->pszLocation = NULL;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /*
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync     * Wait for the thread.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync     */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    if (pThis->ListenThread != NIL_RTTHREAD)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    {
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        int rc = RTThreadWait(pThis->ListenThread, 30000, NULL);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        if (RT_SUCCESS(rc))
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            pThis->ListenThread = NIL_RTTHREAD;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        else
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            LogRel(("DrvTCP%d: listen thread did not terminate (%Rrc)\n", pDrvIns->iInstance, rc));
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    }
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync}
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync/**
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * Construct a TCP socket stream driver instance.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync *
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * @copydoc FNPDMDRVCONSTRUCT
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsyncstatic DECLCALLBACK(int) drvTCPConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync{
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    PDRVTCP pThis = PDMINS_2_DATA(pDrvIns, PDRVTCP);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /*
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync     * Init the static parts.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync     */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    pThis->pDrvIns                      = pDrvIns;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    pThis->pszLocation                  = NULL;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    pThis->fIsServer                    = false;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    pThis->TCPServer                    = -1;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    pThis->TCPConnection                = -1;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    pThis->ListenThread                 = NIL_RTTHREAD;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    pThis->fShutdown                    = false;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* IBase */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    pDrvIns->IBase.pfnQueryInterface    = drvTCPQueryInterface;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* IStream */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    pThis->IStream.pfnRead              = drvTCPRead;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    pThis->IStream.pfnWrite             = drvTCPWrite;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /*
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync     * Validate and read the configuration.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync     */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    PDMDRV_VALIDATE_CONFIG_RETURN(pDrvIns, "Location|IsServer", "");
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    int rc = CFGMR3QueryStringAlloc(pCfg, "Location", &pThis->pszLocation);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    if (RT_FAILURE(rc))
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        return PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync                                   N_("Configuration error: querying \"Location\" resulted in %Rrc"), rc);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    rc = CFGMR3QueryBool(pCfg, "IsServer", &pThis->fIsServer);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    if (RT_FAILURE(rc))
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        return PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync                                   N_("Configuration error: querying \"IsServer\" resulted in %Rrc"), rc);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /*
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync     * Create/Open the socket.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync     */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    int s = socket(PF_INET, SOCK_STREAM, 0);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    if (s == -1)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        return PDMDrvHlpVMSetError(pDrvIns, RTErrConvertFromErrno(errno), RT_SRC_POS,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync                                   N_("DrvTCP#%d failed to create socket"), pDrvIns->iInstance);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    struct sockaddr_in addr;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    memset(&addr, 0, sizeof(addr));
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    addr.sin_family = AF_INET;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    if (pThis->fIsServer)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    {
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        addr.sin_addr.s_addr = INADDR_ANY;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        addr.sin_port = htons(/*PORT*/ atoi(pThis->pszLocation));
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        /* Bind address to the telnet socket. */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        pThis->TCPServer = s;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        RTFileDelete(pThis->pszLocation);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) == -1)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            return PDMDrvHlpVMSetError(pDrvIns, RTErrConvertFromErrno(errno), RT_SRC_POS,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync                                       N_("DrvTCP#%d failed to bind to socket %s"),
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync                                       pDrvIns->iInstance, pThis->pszLocation);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        rc = RTThreadCreate(&pThis->ListenThread, drvTCPListenLoop, (void *)pThis, 0,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync                            RTTHREADTYPE_IO, RTTHREADFLAGS_WAITABLE, "DrvTCPStream");
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        if (RT_FAILURE(rc))
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            return PDMDrvHlpVMSetError(pDrvIns, rc,  RT_SRC_POS,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync                                       N_("DrvTCP#%d failed to create listening thread"), pDrvIns->iInstance);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    }
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    else
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    {
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        char *token;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        const char *delim = ":";
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        struct hostent *server;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        token = strtok(pThis->pszLocation, delim);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        if(token) {
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            server = gethostbyname(token);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            memmove((char *)&addr.sin_addr.s_addr,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync                    (char *)server->h_addr,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync                     server->h_length);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        }
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        token = strtok(NULL, delim);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        if(token) {
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            addr.sin_port = htons(/*PORT*/ atoi(token));
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        }
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        /* Connect to the telnet socket. */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        pThis->TCPConnection = s;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync        if (connect(s, (struct sockaddr *)&addr, sizeof(addr)) == -1)
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync            return PDMDrvHlpVMSetError(pDrvIns, RTErrConvertFromErrno(errno), RT_SRC_POS,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync                                       N_("DrvTCP#%d failed to connect to socket %s"),
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync                                       pDrvIns->iInstance, pThis->pszLocation);
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    }
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    LogRel(("DrvTCP: %s, %s\n", pThis->pszLocation, pThis->fIsServer ? "server" : "client"));
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    return VINF_SUCCESS;
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync}
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync/**
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync * TCP stream driver registration record.
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsyncconst PDMDRVREG g_DrvTCP =
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync{
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* u32Version */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    PDM_DRVREG_VERSION,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* szName */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    "TCP",
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* szRCMod */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    "",
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* szR0Mod */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    "",
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* pszDescription */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    "TCP serial stream driver.",
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* fFlags */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* fClass. */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    PDM_DRVREG_CLASS_STREAM,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* cMaxInstances */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    ~0U,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* cbInstance */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    sizeof(DRVTCP),
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* pfnConstruct */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    drvTCPConstruct,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* pfnDestruct */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    drvTCPDestruct,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* pfnRelocate */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    NULL,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* pfnIOCtl */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    NULL,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* pfnPowerOn */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    NULL,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* pfnReset */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    NULL,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* pfnSuspend */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    NULL,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* pfnResume */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    NULL,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* pfnAttach */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    NULL,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* pfnDetach */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    NULL,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* pfnPowerOff */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    drvTCPPowerOff,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* pfnSoftReset */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    NULL,
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    /* u32EndVersion */
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync    PDM_DRVREG_VERSION
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync};
0dd04aaaddd3b919138a2c0223403806e0fd4ca1vboxsync