Re: class kernel_service not defined in policy

["Justin P. Mattock" <justinmattock@xxxxxxxxx>]

David P. Quigley wrote:
> On Mon, 2008-12-29 at 21:56 -0800, Justin Mattock wrote:
>   
> > Hello;
> > this was received when doing a git-pull
> > today from the linus tree.
> >  class kernel_service not defined in policy
> >
> >
> > [    0.000999] SELinux:  Initializing.
> > [    0.000999] SELinux:  Starting in enforcing mode
> > [    0.263823] SELinux:  Registering netfilter hooks
> > [    2.247051] SELinux: 8192 avtab hash slots, 145624 rules.
> > [    2.343549] SELinux: 8192 avtab hash slots, 145624 rules.
> > [    2.517323] SELinux:  7 users, 9 roles, 2684 types, 95 bools, 1
> > sens, 256 cats
> > [    2.525821] SELinux:  73 classes, 145624 rules
> > [    2.540472] SELinux:  class kernel_service not defined in policy
> > [    2.548944] SELinux: the above unknown classes and permissions will be denied
> > [    2.557235] SELinux:  Completing initialization.
> > [    2.565527] SELinux:  Setting up existing superblocks.
> > [    2.601357] SELinux: initialized (dev sda1, type ext3), uses xattr
> > [    2.729447] SELinux: initialized (dev selinuxfs, type selinuxfs),
> > uses genfs_contexts
> > [    2.737693] SELinux: initialized (dev mqueue, type mqueue), uses
> > transition SIDs
> > [    2.745982] SELinux: initialized (dev hugetlbfs, type hugetlbfs),
> > uses genfs_contexts
> > [    2.754208] SELinux: initialized (dev devpts, type devpts), uses
> > transition SIDs
> > [    2.762309] SELinux: initialized (dev inotifyfs, type inotifyfs),
> > uses genfs_contexts
> > [    2.770475] SELinux: initialized (dev tmpfs, type tmpfs), uses
> > transition SIDs
> > [    2.778693] SELinux: initialized (dev anon_inodefs, type
> > anon_inodefs), uses genfs_contexts
> > [    2.786995] SELinux: initialized (dev pipefs, type pipefs), uses task SIDs
> > [    2.795429] SELinux: initialized (dev debugfs, type debugfs), uses
> > genfs_contexts
> > [    2.803860] SELinux: initialized (dev sockfs, type sockfs), uses task SIDs
> > [    2.812224] SELinux: initialized (dev proc, type proc), uses genfs_contexts
> > [    2.820584] SELinux: initialized (dev bdev, type bdev), uses genfs_contexts
> > [    2.828671] SELinux: initialized (dev rootfs, type rootfs), uses
> > genfs_contexts
> > [    2.836629] SELinux: initialized (dev sysfs, type sysfs), uses genfs_contexts
> > [    3.640416] SELinux: initialized (dev tmpfs, type tmpfs), uses
> > transition SIDs
> > [    3.778811] SELinux: initialized (dev tmpfs, type tmpfs), uses
> > transition SIDs
> > [    3.792920] SELinux: initialized (dev tmpfs, type tmpfs), uses
> > transition SIDs
> > [    8.328082] SELinux: initialized (dev tmpfs, type tmpfs), uses
> > transition SIDs
> > [    9.578021] SELinux: initialized (dev usbfs, type usbfs), uses genfs_contexts
> > [   10.554482] SELinux: initialized (dev tmpfs, type tmpfs), uses
> > transition SIDs
> >
> > I've been running the latest svn from tresys for(I think a week or so);
> > So the message might already be fixed.
> >
> > regards;
> >     
>
> So commit bb26c6c29b7cc9f39e491b074b09f3c284738d36 is a merger of James'
> security tree into Linus's main tree. On of the patch sets in there is
> the new credentials work from David Howells. One of those patches adds a
> kernel service object class to selinux so policy can be written to all
> that service to be granted the ability to override certain permission
> checks. I just built a policy from refpolicy and the policy.conf doesn't
> have a kernel_service object class. I'm not sure if the policy engine
> uses the kernel headers, the dynamic object class discovery mechanism,
> or a built in list to generate the boilerplate with all the object
> classes and permissions. Regardless it is mainly so things like cachefs
> and NFSD can be granted the ability to act as other entities when
> making/fulfilling requests. I don't think there is a need to be
> concerned about it yet unless something is no longer working for you.
>
> Dave
>
>
>   
No worries,  I figured it was better  to  send 
a post, rather than to say nothing at all.
I did notice the commit, looks nice,
although the graphics module is broken
with the capability i.g. current_euid();
eventually in time that will be fixed.
As for the policy, everything seems good.
just one question what is UBAC
how to I use that? or is it something alse!

regards;

Justin P. Mattock

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