Messages in this thread |  | | From | Gabor Kerenyi <> | Subject | Re: extended file permissions based on LSM | Date | Mon, 2 Sep 2002 09:20:50 +0900 |
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On Monday 02 September 2002 08:08, Chris Wright wrote: > * Daniel Phillips (phillips@arcor.de) wrote: > > On Sunday 01 September 2002 02:26, Chris Wright wrote: > > > * Ingo Oeser (ingo.oeser@informatik.tu-chemnitz.de) wrote: > > > > So this is a correctly pointed out design weakness: The way the > > > > user took to reach the inode cannot be taken into account. > > > > > > Yes, this is known, and there are anticipated VFS changes to remedy > > > this. > > > > Could you describe them, please? > > For example, passing vfsmount/dentry pair to i_op->permission(). > getattr() is already done, and last I heard I Al intends to do > setattr() as well.
Changing the i_op->permission() is the last step and the easiest, I think. There will be more VFS changes. vfs_*, may_*, namei.c:permissoin, path name lookup, LSM etc. Moreover the i_op->permission() change will break the interface to FileSystems but it could be easily fixed.
Gabor
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