It’s normal - the data remains in cache, so no NO_CACHE reads would need
to come.
Ice Fu wrote:
In my file filter dirver, I catch the IRP_MJ_READ which Irp->Flags is
IRP_NOCACHE to Decrypt the DOC file, and also when saving the DOC file I
can successful Static Encrypt the DOC file.
My problem is that after I Encrypt the DOC file, close the file, and open
the DOC file the second time, I do not know how to Decrypt it, because
there are no NOCACHE IRP_MJ_READ.So I wondered if there are some ways to cause the NOCASHE IRP_MJ_READ,
or my way of Decypt the DOC file is totally wrong?Any suggestions will be appreciated.
Thanks!
Ice Fu
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Kind regards, Dejan M. MVP for DDK
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