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SubjectRe: [PATCH] Extended Attributes for Security Modules against 2.5.68
* Stephen Smalley ( wrote:
> 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.

Or perhaps introducing some of the CAP_MAC_* bits. In either case, it'd
be nice to reuse xattr_trusted if possible, IMHO.

Linux Security Modules
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