On Wednesday 15 August 2007 18:23, Casey Schaufler wrote:
> > Hi Linus, Al,
> >
> > Would you object greatly to functions like vfs_mkdir() gaining a security
> > parameter?
>
> Could you describe how this compares to the proposal that the
> AppArmor developers suggested recently? I expect that we can
> reduce the amount of discussion required, and maybe avoid some
> confusion if you could do that.
That's from one of those patches:
-int vfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+int vfs_mkdir(struct inode *dir, struct dentry *dentry, struct vfsmount *mnt,
+ int mode)
We need the vfsmount in the LSM hooks in addition to the dentry in order to
figure out where in the filesystem namespace we are. The various vfs_
functions are the ones calling the LSM hooks. (The same could be achieved
passing a struct path instead.)
-- Andreas
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