WINAPI determine if specific SCSI device is present - c

Question

I'm currently trying to detect if a machine has a specific NVME SSD installed. On my machine, the file name is: SCSI#Disk&Ven_NVMe&Prod_XPG_SPECTRIX_S40#5&1363da6c&0&000000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}
What would be a reliable way to detect this universally on any machine? I don't know if any of these fields are unique to each machine, and I'm not very familiar with Windows' API.

Answer 1

when disk type hardware is detected, kernel create device for it (really 2 device usually PDO and FDO attached to it) and register well known interface GUID_DEVINTERFACE_DISK (by call IoRegisterDeviceInterface ). as result Symbolic Link will be created under \GLOBAL?? directory. we can got all registered disk interfaces via CM_Get_Device_Interface_ListW.
SCSI#Disk&Ven_NVMe&Prod_XPG_SPECTRIX_S40# obvious unique and will be the same anywhere for this device.
so code can be next
CONFIGRET Is_XPG_SPECTRIX_S40_Present(PBOOL pb)
{
CONFIGRET cr;
ULONG cb = 0, rcb;
union {
PVOID buf;
PZZWSTR Buffer;
};
static volatile UCHAR guz = 0;
PVOID stack = alloca(guz);
do
{
cr = CM_Get_Device_Interface_List_SizeW(&rcb, const_cast<GUID*>(&GUID_DEVINTERFACE_DISK), 0, CM_GET_DEVICE_INTERFACE_LIST_PRESENT);
if (cr != CR_SUCCESS)
{
break;
}
if (cb < (rcb *= sizeof(WCHAR)))
{
cb = RtlPointerToOffset(buf = alloca(rcb - cb), stack);// /RTCs must be off
}
cr = CM_Get_Device_Interface_ListW(const_cast<GUID*>(&GUID_DEVINTERFACE_DISK),
0, Buffer, cb, CM_GET_DEVICE_INTERFACE_LIST_PRESENT);
} while (cr == CR_BUFFER_SMALL);
if (cr == CR_SUCCESS)
{
while (*Buffer)
{
if (wcsstr(Buffer, L"\\SCSI#Disk&Ven_NVMe&Prod_XPG_SPECTRIX_S40#"))
{
*pb = TRUE;
break;
}
Buffer += wcslen(Buffer) + 1;
}
}
return cr;
}