Re: [PATCH] Extended Attributes for Security Modules against 2.5.68

From: Stephen Smalley (sdsat_private)
Date: Thu Apr 24 2003 - 06:49:26 PDT

  • Next message: Chris Wright: "Re: [PATCH] Extended Attributes for Security Modules against 2.5.68"

    On Thu, 2003-04-24 at 09:03, Christoph Hellwig wrote:
    > Hmm, what would you think of changing the xattr_trusted security
    > model to fit your needs?  It's so far unused outside XFS and there's
    > maybe a chance changing it.
    
    It would require removing the capable(CAP_SYS_ADMIN) checks from the
    xattr_trusted.c handler and implementing them in the capabilities
    security module (and corresponding superuser tests in the dummy security
    module) via the inode_setxattr and inode_getxattr hook functions.  This
    would then permit security modules to implement their own permission
    checking logic for getxattr and setxattr calls for their attributes, and
    it would allow security modules to internally call the getxattr and
    setxattr inode operations without being subjected to these checks in
    order to manage the attributes.
    
    -- 
    Stephen Smalley <sdsat_private>
    National Security Agency
    
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