Messages in this thread | | | From | Stephen Smalley <> | Date | Mon, 15 Jun 2020 16:31:59 -0400 | Subject | Re: [PATCH 4/5] LSM: Define SELinux function to measure security state |
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On Mon, Jun 15, 2020 at 12:45 PM Lakshmi Ramasubramanian <nramas@linux.microsoft.com> wrote: > > On 6/15/20 4:57 AM, Stephen Smalley wrote: > > I think I mentioned this on a previous version of these patches, but I > > would recommend including more than just the enabled and enforcing > > states in your measurement. Other low-hanging fruit would be the > > other selinux_state booleans (checkreqprot, initialized, > > policycap[0..__POLICYDB_CAPABILITY_MAX]). Going a bit further one > > could take a hash of the loaded policy by using security_read_policy() > > and then computing a hash using whatever hash ima prefers over the > > returned data,len pair. You likely also need to think about how to > > allow future extensibility of the state in a backward-compatible > > manner, so that future additions do not immediately break systems > > relying on older measurements. > > > > Sure - I will address this one in the next update.
Please add selinux list to the cc for future versions too.
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