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Block access to files on attribute when application is not running

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Cross-platform protocol-independent communication framework for building peer-to-peer and client-server applications and middleware components.
Posted: 01/31/2014 02:58:11
by Theodor Kleynhans (Standard support level)
Joined: 10/29/2013
Posts: 7

We would like to do something similar to what the DefaultRule does but it should match on a file attribute and not a file mask.

So what we trying to do is to add a DefaultRule to block access to all files that has the FILE_ATTRIBUTE_VIRTUAL attribute set as long as our application is not running. When you application starts and adds filtering or pass-through rules it will "override" the default rules and the files will be available. At some stage we want to remove the FILE_ATTRIBUTE_VIRTUAL from the file and remove all callbacks and close the application.
Posted: 01/31/2014 03:05:49
by Eugene Mayevski (EldoS Corp.)

FILE_ATTRIBUTE_VIRTUAL is defined as reserved for system use by Windows. You can't set this attribute for real files on the disk, as I understand.

At the moment there's no mechanism to filter files by attributes at all. Maybe we'll implement one in CallbackFilter 4. You can add the idea to the wishlist.

Sincerely yours
Eugene Mayevski
Posted: 01/31/2014 03:26:56
by Theodor Kleynhans (Standard support level)
Joined: 10/29/2013
Posts: 7

Thank you Eugene for the quick response.

Do you have any idea how we can block access to certain files when our application is not running up to a point and then allow it without re-booting to load DefaultRules?
Posted: 01/31/2014 03:36:44
by Eugene Mayevski (EldoS Corp.)

Either block the files by name or encrypt them. If you don't want to show files to the user at all, use our Solid File System product and store the files there using either CallbackFilter or using SolFS OS edition or Callback File System.

Sincerely yours
Eugene Mayevski



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