static int CallSmc(KSMCFUNCTION enmFunction, SMCPARAM *pIn, SMCPARAM *pOut)
{
RT_ZERO(*pOut);
pIn->bData = enmFunction;
size_t cbOut = sizeof(*pOut);
IOReturn rcIo = IOConnectCallStructMethod(g_hSmcConnect, kSMCHandleYPCEvent, pIn, sizeof(*pIn), pOut, &cbOut);
if (rcIo == kIOReturnSuccess)
return VINF_SUCCESS;
RTMsgError("SMC call %d failed: rcIo=%d (%#x)\n", enmFunction, rcIo, rcIo);
return RTErrConvertFromDarwinIO(rcIo);
}
static int ConnectToSmc(void)
{
g_hSmcService = IOServiceGetMatchingService(kIOMasterPortDefault, IOServiceMatching("AppleSMC"));
if (g_hSmcService == IO_OBJECT_NULL)
return VERR_NOT_FOUND;
IOReturn rcIo = IOServiceOpen(g_hSmcService, mach_task_self(), 1, &g_hSmcConnect);
if (rcIo == kIOReturnSuccess && g_hSmcConnect != IO_OBJECT_NULL)
{
rcIo = IOConnectCallMethod(g_hSmcConnect, kSMCUserClientOpen, NULL, 0, NULL, 0, NULL, NULL, NULL, NULL);
if (rcIo == kIOReturnSuccess)
return VINF_SUCCESS;
RTMsgError("kSMCUserClientOpen failed: %#x (%#x)\n", rcIo, rcIo);
}
else
{
RTMsgError("IOServiceOpen failed: %#x (%#x)\n", rcIo, rcIo);
g_hSmcConnect = IO_OBJECT_NULL;
}
return RTErrConvertFromDarwinIO(rcIo);
}
RTDECL(int) RTSystemQueryDmiString(RTSYSDMISTR enmString, char *pszBuf, size_t cbBuf)
{
AssertPtrReturn(pszBuf, VERR_INVALID_POINTER);
AssertReturn(cbBuf > 0, VERR_INVALID_PARAMETER);
*pszBuf = '\0';
AssertReturn(enmString > RTSYSDMISTR_INVALID && enmString < RTSYSDMISTR_END, VERR_INVALID_PARAMETER);
CFStringRef PropStringRef = NULL;
switch (enmString)
{
case RTSYSDMISTR_PRODUCT_NAME: PropStringRef = CFSTR(PROP_PRODUCT_NAME); break;
case RTSYSDMISTR_PRODUCT_VERSION: PropStringRef = CFSTR(PROP_PRODUCT_VERSION); break;
case RTSYSDMISTR_PRODUCT_SERIAL: PropStringRef = CFSTR(PROP_PRODUCT_SERIAL); break;
case RTSYSDMISTR_PRODUCT_UUID: PropStringRef = CFSTR(PROP_PRODUCT_UUID); break;
case RTSYSDMISTR_MANUFACTURER: PropStringRef = CFSTR(PROP_MANUFACTURER); break;
default:
return VERR_NOT_SUPPORTED;
}
mach_port_t MasterPort;
kern_return_t kr = IOMasterPort(MACH_PORT_NULL, &MasterPort);
if (kr != kIOReturnSuccess)
{
if (kr == KERN_NO_ACCESS)
return VERR_ACCESS_DENIED;
return RTErrConvertFromDarwinIO(kr);
}
CFDictionaryRef ClassToMatch = IOServiceMatching(IOCLASS_PLATFORMEXPERTDEVICE);
if (!ClassToMatch)
return VERR_NOT_SUPPORTED;
/* IOServiceGetMatchingServices will always consume ClassToMatch. */
io_iterator_t Iterator;
kr = IOServiceGetMatchingServices(MasterPort, ClassToMatch, &Iterator);
if (kr != kIOReturnSuccess)
return RTErrConvertFromDarwinIO(kr);
int rc = VERR_NOT_SUPPORTED;
io_service_t ServiceObject;
while ((ServiceObject = IOIteratorNext(Iterator)))
{
if ( enmString == RTSYSDMISTR_PRODUCT_NAME
|| enmString == RTSYSDMISTR_PRODUCT_VERSION
|| enmString == RTSYSDMISTR_MANUFACTURER
)
{
CFDataRef DataRef = (CFDataRef)IORegistryEntryCreateCFProperty(ServiceObject, PropStringRef,
kCFAllocatorDefault, kNilOptions);
if (DataRef)
{
size_t cbData = CFDataGetLength(DataRef);
const char *pchData = (const char *)CFDataGetBytePtr(DataRef);
rc = RTStrCopyEx(pszBuf, cbBuf, pchData, cbData);
CFRelease(DataRef);
break;
}
}
else
{
CFStringRef StringRef = (CFStringRef)IORegistryEntryCreateCFProperty(ServiceObject, PropStringRef,
kCFAllocatorDefault, kNilOptions);
if (StringRef)
{
Boolean fRc = CFStringGetCString(StringRef, pszBuf, cbBuf, kCFStringEncodingUTF8);
if (fRc)
rc = VINF_SUCCESS;
else
{
CFIndex cwc = CFStringGetLength(StringRef);
size_t cbTmp = cwc + 1;
char *pszTmp = (char *)RTMemTmpAlloc(cbTmp);
int cTries = 1;
while ( pszTmp
&& (fRc = CFStringGetCString(StringRef, pszTmp, cbTmp, kCFStringEncodingUTF8)) == FALSE
&& cTries++ < 4)
{
RTMemTmpFree(pszTmp);
cbTmp *= 2;
pszTmp = (char *)RTMemTmpAlloc(cbTmp);
}
if (fRc)
rc = RTStrCopy(pszBuf, cbBuf, pszTmp);
else if (!pszTmp)
rc = VERR_NO_TMP_MEMORY;
else
rc = VERR_ACCESS_DENIED;
RTMemFree(pszTmp);
}
CFRelease(StringRef);
break;
}
}
}
IOObjectRelease(ServiceObject);
IOObjectRelease(Iterator);
return rc;
}
