NTSTATUS NTAPI INIT_FUNCTION PiInitCacheGroupInformation ( VOID )
Definition at line 48 of file pnpinit.c.
Referenced by IopInitializePlugPlayServices().
{
    HANDLE KeyHandle;
    NTSTATUS Status;
    PKEY_VALUE_FULL_INFORMATION KeyValueInformation;
    PUNICODE_STRING GroupTable;
    ULONG Count;
    UNICODE_STRING GroupString =
        RTL_CONSTANT_STRING(L"\\Registry\\Machine\\System\\CurrentControlSet"
                            L"\\Control\\ServiceGroupOrder");
    
    /* ReactOS HACK for SETUPLDR */
    if (KeLoaderBlock->SetupLdrBlock)
    {
        /* Bogus data */
        PiInitGroupOrderTableCount = 0;
        PiInitGroupOrderTable = (PVOID)0xBABEB00B;
        return STATUS_SUCCESS;
    }
    
    /* Open the registry key */
    Status = IopOpenRegistryKeyEx(&KeyHandle,
                                  NULL,
                                  &GroupString,
                                  KEY_READ);
    if (NT_SUCCESS(Status))
    {
        /* Get the list */
        Status = IopGetRegistryValue(KeyHandle, L"List", &KeyValueInformation);
        ZwClose(KeyHandle);
        
        /* Make sure we got it */
        if (NT_SUCCESS(Status))
        {
            /* Make sure it's valid */
            if ((KeyValueInformation->Type == REG_MULTI_SZ) &&
                (KeyValueInformation->DataLength))
            {
                /* Convert it to unicode strings */
                Status = PnpRegMultiSzToUnicodeStrings(KeyValueInformation,
                                                       &GroupTable,
                                                       &Count);
                
                /* Cache it for later */
                PiInitGroupOrderTable = GroupTable;
                PiInitGroupOrderTableCount = (USHORT)Count;
            }
            else
            {
                /* Fail */
                Status = STATUS_UNSUCCESSFUL;
            }
            
            /* Free the information */
            ExFreePool(KeyValueInformation);
        }
    }
    
    /* Return status */
    return Status;
}
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