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 filtering rename operations. In pre-callback I clear ReplaceIfExists in both FLT_PARAMETERS for IRP_MJ_SET_INFORMATION and FILE_RENAME_INFORMATION. Call FltSetCallbackDataDirty.
Before my callback called filter manager sets Iopb in FLT_CALLBACK_DATA to new value.
In post-callback I have ReplaceIfExists in FLT_PARAMETERS for IRP_MJ_SET_INFORMATION set(by fltmgr) to TRUE(should be FALSE). ReplaceIfExists in FILE_RENAME_INFORMATION still set to FALSE(as expected).
Nothing changes if I don't call FltSetCallbackDataDirty.
Is that expected behaviour ? What should I do if I want to get correct modified value in post-callback ?
|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!|
|Writing WDF Drivers||7 Dec 2020||LIVE ONLINE|
|Internals & Software Drivers||25 Jan 2021||LIVE ONLINE|
|Developing Minifilters||8 March 2021||LIVE ONLINE|