The irp stack location (see IoGetCurrentIrpStackLocation() and
IoGetNextIrpStackLocation() definitions in the wdk) contains the offset
and length of where to retrieve the data. The device it is sent at
determines from which device to get the data. And the Mdl describes
where to put/get the data.
Pete
–
Kernel Drivers
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------ Original Message ------
From: xxxxx@gmail.com
To: “Windows File Systems Devs Interest List”
Sent: 10/12/2016 4:28:14 PM
Subject: RE:[ntfsd] Reading a file only by using IofCallDriver
>So I’m wondering what information is getting passed along in the IRP?
>Something must tell the device where to go and what to get. Where does
>this information go in the IRP?
>
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