The free OSR Learning Library has more than 50 articles on a wide variety of topics about writing and debugging device drivers and Minifilters. From introductory level to advanced. All the articles have been recently reviewed and updated, and are written using the clear and definitive style you've come to expect from OSR over the years.
Check out The OSR Learning Library at: https://www.osr.com/osr-learning-library/
I am trying to find a way how to report back NTSTATUS codes to the CloseHandle() call from the Windows passthrough file system driver example.
My understanding is that this can not be done in IRP_MJ_CLEANUP, as that is called after CloseHandle() system call already has been executed.
And it can't be done in IRP_MJ_CLOSE, as that happens after IRP_MJ_CLEANUP.
So that leads to the question, where is the NTSTATUS code picked up from the kernel for the CloseHandle() system call?
Is there a MINOR signal in for instance IRP_MJ_WRITE that indicates that the last written byte has been called from Userspace?
For instance IRP_MN_COMPLETE (that the cache should be cleared)?
Please help me understand how to handle this..
|Upcoming OSR Seminars|
|OSR has suspended in-person seminars due to the Covid-19 outbreak. But, don't miss your training! Attend via the internet instead!||Kernel Debugging||30 Mar 2020||OSR Seminar Space|
|Developing Minifilters||15 Jun 2020||LIVE ONLINE|
|Writing WDF Drivers||22 June 2020||LIVE ONLINE|
|Internals & Software Drivers||28 Sept 2020||Dulles, VA|