On 05/11/2011 04:52 PM, Kay Sievers wrote: > On Wed, May 11, 2011 at 16:43, Greg KH <g...@kroah.com> wrote: >> On Wed, May 11, 2011 at 04:27:59PM +0200, Kay Sievers wrote: >>> On Wed, May 11, 2011 at 15:54, Greg KH <g...@kroah.com> wrote: >>>> On Wed, May 11, 2011 at 01:22:42PM +0200, John Johansen wrote: >>>>> On 05/11/2011 03:59 AM, Greg KH wrote: >>>>>> On Tue, May 10, 2011 at 03:55:24PM -0700, Casey Schaufler wrote: >>>>>>> On 5/10/2011 3:34 PM, Greg KH wrote: >>>>>>>> From: Greg Kroah-Hartman <gre...@suse.de> >>>>>>>> >>>>>>>> In the interest of keeping userspace from having to create new root >>>>>>>> filesystems all the time, let's follow the lead of the other in-kernel >>>>>>>> filesystems and provide a proper mount point for it in sysfs. >>>>>>>> >>>>>>>> For selinuxfs, this mount point should be in /sys/fs/selinux/ >>>>>>> >>>>>>> It seems that we might want this to be an LSM interface standard. >>>>>>> Is the call to kobject_create_and_add and associated cleanup all >>>>>>> that's required? I would want Smack to follow the convention as >>>>>>> well. >>>>>> >>>>>> You could always just create a subdir under /sys/security/ if you have >>>>>> your own filesystem, but I don't think that Smack has one, right? >>>>>> >>>>>> Is it going to get one? If so, we might want to revisit the idea of >>>>>> securityfs if no one is actually using it... >>>>>> >>>>> resending, as this looks to have been lost >>>>> >>>>> AppArmor, IMA, and TOMOYO are using securityfs currently. >>>> >>>> Great, then it will not go anywhere. >>> >>> Just to get an idea how all this fits together. How can TPM bios and >>> IMA/AppArmor share this directory? They have their own subdirs in >>> there, or both just use the securityfs infrastructure and not their >>> own filesystem on top? >> >> Only one security module is allowed to be loaded/active at any one point >> in time, so they can't step on each other. > > Right, but what I don't understand is CONFIG_TCG_TPM, which seem to > use securityfs, and is not a LSM. This and AppArmor/IMA can be used at > the same time, can't it? They share securityfs then? > AppArmor, Tomoyo and IMA all create their own subdirectoy under securityfs so this should not be a problem
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