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/* $Rev: 60692 $ */
/** @file
* VBoxGuest - Inter Driver Communcation, unix implementation.
*
* This file is included by the platform specific source file.
*/
/*
* Copyright (C) 2006-2009 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
* Some lines of code to disable the local APIC on x86_64 machines taken
* from a Mandriva patch by Gwenole Beauchesne <gbeauchesne@mandriva.com>.
*/
/** @todo Use some header that we have in common with VBoxGuestLib.h... */
DECLVBGL(void *) VBoxGuestIDCOpen(uint32_t *pu32Version);
DECLVBGL(int) VBoxGuestIDCClose(void *pvSession);
DECLVBGL(int) VBoxGuestIDCCall(void *pvSession, unsigned iCmd, void *pvData, size_t cbData, size_t *pcbDataReturned);
/**
* Open a new IDC connection.
*
* @returns Opaque pointer to session object.
* @param pu32Version Where to store VMMDev version.
*/
DECLVBGL(void *) VBoxGuestIDCOpen(uint32_t *pu32Version)
{
PVBOXGUESTSESSION pSession;
int rc;
LogFlow(("VBoxGuestIDCOpen: Version=%#x\n", pu32Version ? *pu32Version : 0));
AssertPtrReturn(pu32Version, NULL);
rc = VBoxGuestCreateKernelSession(&g_DevExt, &pSession);
if (RT_SUCCESS(rc))
{
*pu32Version = VMMDEV_VERSION;
return pSession;
}
LogRel(("VBoxGuestIDCOpen: VBoxGuestCreateKernelSession failed. rc=%d\n", rc));
return NULL;
}
/**
* Close an IDC connection.
*
* @returns VBox error code.
* @param pvState Opaque pointer to the session object.
*/
DECLVBGL(int) VBoxGuestIDCClose(void *pvSession)
{
PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)pvSession;
LogFlow(("VBoxGuestIDCClose:\n"));
AssertPtrReturn(pSession, VERR_INVALID_POINTER);
VBoxGuestCloseSession(&g_DevExt, pSession);
return VINF_SUCCESS;
}
/**
* Perform an IDC call.
*
* @returns VBox error code.
* @param pvSession Opaque pointer to the session.
* @param iCmd Requested function.
* @param pvData IO data buffer.
* @param cbData Size of the data buffer.
* @param pcbDataReturned Where to store the amount of returned data.
*/
DECLVBGL(int) VBoxGuestIDCCall(void *pvSession, unsigned iCmd, void *pvData, size_t cbData, size_t *pcbDataReturned)
{
PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)pvSession;
LogFlow(("VBoxGuestIDCCall: %pvSesssion=%p Cmd=%u pvData=%p cbData=%d\n", pvSession, iCmd, pvData, cbData));
AssertPtrReturn(pSession, VERR_INVALID_POINTER);
AssertMsgReturn(pSession->pDevExt == &g_DevExt,
("SC: %p != %p\n", pSession->pDevExt, &g_DevExt), VERR_INVALID_HANDLE);
return VBoxGuestCommonIOCtl(iCmd, &g_DevExt, pSession, pvData, cbData, pcbDataReturned);
}
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