Intercepting memory mapped files

Kunal Baweja bawejakunal15 at
Fri Jan 30 05:26:25 EST 2015

I am currently working on implementing a simple encrypted file system using
a stackable file system WrapFS <>. In order
to do so, as I read in the WrapFS mailing list
one needs to implement address space operations, which I have done and
posted on my github at this link
and it works fine. But now when I am trying to modify the data before being
written in wrapfs_lower() function I get a blank output in files written
Please guide where am I going wrong in modifying the data to be written and
what could be the best way to decrypt it ?


*Kunal Baweja*

Undergraduate B.E. (Hons.) Computer Science
Birla Institute Of Technology & Science, Pilani
K.K. Birla Goa Campus
+91 9049655665
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