Windows System Software -- Consulting, Training, Development -- Unique Expertise, Guaranteed Results
Before Posting...
Please check out the Community Guidelines in the Announcements and Administration Category.More Info on Driver Writing and Debugging
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/
IRQL of a pre create callback of minifilters in case of share access (PID 4)?
In MSDN documents:
https://learn.microsoft.com/en-us/windows-hardware/drivers/ifs/writing-preoperation-callback-routines
It is said that "A pre-operation callback can be called at IRQL = PASSIVE_LEVEL or IRQL = APC_LEVEL"
So is this always true? Specifically, in case of share access from a remote machine, which casses the pre callback to be called by the system process (PID 4). is this also always called at APC_LEVEL or PASSIVE_LEVEL?
Howdy, Stranger!
| 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 | 16-20 October 2023 | Live, Online |
| Developing Minifilters | 13-17 November 2023 | Live, Online |
| Internals & Software Drivers | 4-8 Dec 2023 | Live, Online |
| Writing WDF Drivers | 10-14 July 2023 | Live, Online |
Comments
pool. Which means you cannot even check them at DPC.
I think this is guaranteed, or to be more precise, someone else f'ed up
above you if it's not the case.
Dejan.