how can i make IOCTL calls in kernel mode (windows)

StackOverflow https://stackoverflow.com/questions/2973429

  •  24-10-2019
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Question

In user mode IOCTL calls can be made via DeviceIoControl function.
What can I use in kernel mode to issue IOCTL calls? I must use this inside a filesystem minifilter driver.

BACKGROUND
I am writing a filesystem minifilter driver, and I must issue IOCTL calls to storage devices to find out their serial number and capabilities (removable or not).

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Solution

You can use FltDeviceIoControlFile or build and send IRP manually with IoBuildDeviceIoControlRequest and IoCallDriver.

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