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CBFS virtual disk sector data

Posted: 04/02/2013 18:00:37
by Eaton Zveare (Standard support level)
Joined: 11/28/2011
Posts: 22

When you open a CBFS virtual disk in a hex editor, you can see the first sector that has a "cbfs" magic and then the following sectors are all filled with 0x55'd bytes. I suspect CBFS is providing Windows with that data internally, so I was wondering if it would be possible to implement a callback to monitor when Windows wants to read/write raw sector data like this.

For users that have data sources that are actual files/disks, this could be a nice, optional feature. In my case, I could provide the raw partition data.

My suggestion would be callbacks like this:

OnReadSectorData(uint Sector, byte[] SectorData)
OnWriteSectorData(uint Sector, byte[] SectorData)

Would this be possible to implement?
Posted: 04/03/2013 00:37:05
by Volodymyr Zinin (Team)

Thank you for this idea. Yes, it's possible to implement and we have already had it in our todo list.
But it seems nobody else has asked for this before. Is it really necessary feature for you?
Posted: 04/03/2013 09:47:24
by Eaton Zveare (Standard support level)
Joined: 11/28/2011
Posts: 22

It would just be a convenience. Sometimes I need to manipulate the raw file system internals and being able to open the virtual disk in a hex editor would be nice.



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