int HGSMIBufferProcess (HGSMIAREA *pArea,
HGSMICHANNELINFO * pChannelInfo,
HGSMIOFFSET offBuffer)
{
LogFlowFunc(("pArea %p, offBuffer 0x%x\n", pArea, offBuffer));
AssertPtr(pArea);
AssertPtr(pChannelInfo);
int rc = VERR_GENERAL_FAILURE;
// VM_ASSERT_EMT(pIns->pVM);
/* Guest has prepared a command description at 'offBuffer'. */
const HGSMIBUFFERHEADER *pHeader = hgsmiVerifyBuffer (pArea, offBuffer);
Assert(pHeader);
if (pHeader)
{
/* Pass the command to the appropriate handler registered with this instance.
* Start with the handler list head, which is the preallocated HGSMI setup channel.
*/
HGSMICHANNEL *pChannel = HGSMIChannelFindById (pChannelInfo, pHeader->u8Channel);
Assert(pChannel);
if (pChannel)
{
hgsmiBufferProcess (pChannel, pHeader);
HGSMI_STRICT_ASSERT(hgsmiVerifyBuffer (pArea, offBuffer) != NULL);
rc = VINF_SUCCESS;
}
else
{
rc = VERR_INVALID_FUNCTION;
}
}
else
{
rc = VERR_INVALID_HANDLE;
// LogRel(("HGSMI[%s]: ignored invalid guest buffer 0x%08X!!!\n", pIns->pszName, offBuffer));
}
return rc;
}
/** Process a guest buffer.
*
* @returns VBox status.
* @param pArea Area which supposed to contain the buffer.
* @param pChannelInfo The channel pool.
* @param offBuffer The buffer location in the area.
*/
int HGSMIBufferProcess(const HGSMIAREA *pArea,
HGSMICHANNELINFO *pChannelInfo,
HGSMIOFFSET offBuffer)
{
LogFlowFunc(("pArea %p, offBuffer 0x%x\n", pArea, offBuffer));
AssertPtrReturn(pArea, VERR_INVALID_PARAMETER);
AssertPtrReturn(pChannelInfo, VERR_INVALID_PARAMETER);
/* Guest has prepared a command description at 'offBuffer'. */
HGSMIBUFFERCONTEXT bufferContext;
int rc = hgsmiVerifyBuffer(pArea, offBuffer, &bufferContext);
if (RT_SUCCESS(rc))
{
/* Pass the command to the appropriate handler registered with this instance.
* Start with the handler list head, which is the preallocated HGSMI setup channel.
*/
const HGSMICHANNEL *pChannel = HGSMIChannelFindById(pChannelInfo, bufferContext.pHeader->u8Channel);
if (pChannel)
{
const HGSMICHANNELHANDLER *pHandler = &pChannel->handler;
if (pHandler->pfnHandler)
{
pHandler->pfnHandler(pHandler->pvHandler, bufferContext.pHeader->u16ChannelInfo,
bufferContext.pvData, bufferContext.cbData);
}
HGSMI_STRICT_ASSERT(RT_SUCCESS(hgsmiVerifyBuffer(pArea, offBuffer, &bufferContext)));
}
else
{
rc = VERR_INVALID_FUNCTION;
HGSMI_STRICT_ASSERT_FAILED();
}
}
return rc;
}
