Intercepting memory mapped files

[Saket Sinha]

HI,

Kindly refer the following link that implements a minimal encryption over
wrapfs.
https://github.com/piekill/wrapfs

Go through the wrapfs_encrypt in wrapfs_readpage and wrapfs_decrypt in
wrapfs_writepage.

Regards,
Saket Sinha

On Fri, Jan 30, 2015 at 3:56 PM, Kunal Baweja <bawejakunal15 at gmail.com>
wrote:

> Hi,
> I am currently working on implementing a simple encrypted file system
> using a stackable file system WrapFS <http://wrapfs.filesystems.org/>. In
> order to do so, as I read in the WrapFS mailing list
> <http://www.fsl.cs.sunysb.edu/pipermail/wrapfs/2011-November/000058.html>
> one needs to implement address space operations, which I have done and
> posted on my github at this link
> <https://github.com/bawejakunal/wrapfs-addresspace-operations/blob/master/mmap.c>
> 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
> out.
> Please guide where am I going wrong in modifying the data to be written
> and what could be the best way to decrypt it ?
>
> Thanks
>
> *Kunal Baweja*
>
> Undergraduate B.E. (Hons.) Computer Science
> Birla Institute Of Technology & Science, Pilani
> K.K. Birla Goa Campus
> +91 9049655665
>
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies at kernelnewbies.org
> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20150130/978f8ae8/attachment.html