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CNTFS - A simple lib for managing NTFS permissions and audit settings.

, 22 Oct 2003
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CNTFS is a simple lib for setting NTFS permissions and audit settings.

Sample Image - ACLEditor.jpg

Introduction

CNTFS lib is a simple C++ wrapper for many of the Microsoft security calls such as: GetNamedSecurityInfo, GetAclInformation, AddAccessAllowedAceEx and many others. CNTFS is used to set NTFS permissions and audit settings on files and folders. It's a programmatic alternative to using utilities such as xcacls.exe.

Interface

The following methods are supported in the lib:

int DeleteDACL(CString & I_objPath, BOOL I_removeInheritance)

int DeleteSACL(CString & I_objPath, BOOL I_removeInheritance)

int RemoveInheritance(CString & I_objPath)

int TakeOwnership(CString & I_objPath, CString & I_newOwner)

int AddACEToDACL(CString & I_objPath, 
                 CString & I_securityPrincipal, 
                 DWORD I_objPermission)

int AddACEToSACL(CString & I_objPath, 
                 CString & I_securityPrincipal, 
                 DWORD I_objPermission,
                 BOOL I_auditSuccess,
                 BOOL I_auditFailure)

ACLEditor

ACLEditor is a test application for the CNTFS lib. One of the more tricky aspects of CNTFS is the use of access mask flags. Winnt.h defines access mask flags that can be OR'd together. For example, the Modify permission consists of: FILE_GENERIC_READ | FILE_GENERIC_WRITE | FILE_GENERIC_EXECUTE | DELETE. Among other things, ACLEditor demonstrates the use of access masks in setting NTFS permissions.

Building

Be sure to have the Microsoft Platform SDK in c:\program files\Microsoft SDK. The project settings will reference the include files directory. I've run the lib through Rational Purify so all the mem leaks should be gone.

Any comments or suggestions are welcome.

Enjoy!

Version History

  • Version 1.1 - (Oct 23, 2003) Added support for modifying DACLs and SACLs on registry keys. Consolidated RemoveDACLInheritance and RemoveSACLInheritance into RemoveInheritance method by adding aclType enum.
  • Version 1.0 - (Apr 4, 2003) Initial Release.

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

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About the Author

Kevin Hilscher
Web Developer
Canada Canada
No Biography provided

Comments and Discussions

 
QuestionDelete account PinmemberJack6910487121-Oct-08 2:53 
Hi, I have a problem, if i press delete DACL, then program will delete all account of the file, how can I delete a appoint account with me, for example: I want to delete administrators account , but when I press delete DACL, that will delete all account with this file, so, how can I change the delete methed? Thank you!Confused | :confused:
 
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