<div dir="ltr"><div><div><div>Hi,<br></div>I am currently working on implementing a simple encrypted file system using a stackable file system <a href="http://wrapfs.filesystems.org/">WrapFS</a>. In order to do so, as I read in the <a href="http://www.fsl.cs.sunysb.edu/pipermail/wrapfs/2011-November/000058.html">WrapFS mailing list</a> one needs to implement address space operations, which I have done and posted on my github at <a href="https://github.com/bawejakunal/wrapfs-addresspace-operations/blob/master/mmap.c">this link</a> 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.<br></div>Please guide where am I going wrong in modifying the data to be written and what could be the best way to decrypt it ?<br><br></div>Thanks<br><div><div><br clear="all"><div><div><div><div class="gmail_signature"><div dir="ltr"><div><b style="font-size:small;font-family:arial"><font face="arial, helvetica, sans-serif" color="#000000">Kunal Baweja</font></b><br></div><img src="http://www.fractalink.com/downloads/color_strip_BITS.jpg"><br><div><div style="font-family:arial;font-size:small"><span style="color:rgb(102,102,102);font-family:arial,helvetica,sans-serif">Undergraduate B.E. (Hons.) Computer Science</span><br></div><div style="font-family:arial;font-size:small"><font face="arial, helvetica, sans-serif"><font color="#666666">Birla Institute Of Technology & Science, Pilani</font><br></font></div><div style="font-family:arial;font-size:small"><font face="arial, helvetica, sans-serif" color="#666666">K.K. Birla Goa Campus</font></div><div style="font-family:arial;font-size:small"><font style="font-weight:bold" face="arial, helvetica, sans-serif" color="#3d85c6">+91 9049655665</font></div></div></div></div></div>
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