Commit Graph

15 Commits

Author SHA1 Message Date
Chris PeBenito
d62c0881e2 Update MLS constraints from LSPP evaluated policy. 2007-08-24 14:14:29 +00:00
Chris PeBenito
9760cbec2d trunk: Database userspace object manager classes from KaiGai Kohei. 2007-08-09 13:15:07 +00:00
Chris PeBenito
1900668638 trunk: Unified labeled networking policy from Paul Moore.
The latest revision of the labeled policy patches which enable both labeled 
and unlabeled policy support for NetLabel.  This revision takes into account
Chris' feedback from the first version and reduces the number of interface
calls in each domain down to two at present: one for unlabeled access, one for
NetLabel access.  The older, transport layer specific interfaces, are still  
present for use by third-party modules but are not used in the default policy
modules.

trunk: Use netmsg initial SID for MLS-only Netlabel packets, from Paul Moore.

This patch changes the policy to use the netmsg initial SID as the "base"
SID/context for NetLabel packets which only have MLS security attributes.
Currently we use the unlabeled initial SID which makes it very difficult to
distinquish between actual unlabeled packets and those packets which have MLS
security attributes.
2007-06-27 15:23:21 +00:00
Chris PeBenito
b50f2ee48d It was just pointed out to me that the raw IP socket class is missing from the
recvfrom MLS constraint.

Signed-off-by: Paul Moore
2007-03-09 14:45:19 +00:00
Chris PeBenito
d31d3c159e This modifies the mls constraint for polmatch in the association class.
Specifically:

- polmatch need no longer make an exception for unlabeled_t
  since a flow will now always match SPD rules with no contexts (per
  the IPSec leak fix patch upstreamed a few weeks back), as
  opposed to needing polmatch access to unlabeled_t.

Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com>
2006-11-16 13:38:14 +00:00
Chris PeBenito
c6a60bb28d On Tue, 2006-11-07 at 16:51 -0500, James Antill wrote:
> Here is the policy changes needed for the context contains security
> checking in PAM and cron.
2006-11-14 13:38:52 +00:00
Chris PeBenito
f497b8df50 Christopher J. PeBenito wrote:
> We could add another 'or' on the above constraint:
> 
> or ( (t2 == mlsfilewrite_in_range) and (l1 dom l2) and (h1 domby h2) )
> 
> I believe that would be the constraint you were looking for.  I don't
> like the name of that attribute, but I couldn't come up with a better
> one off the top of my head. :)
> 

Attached is a patch which I've tested against selinux-policy-2.4.2-1
that implements this additional constraint.  The name is still a bit
forced, but it works.

-matt <mra at hp dot com>
2006-11-01 15:42:22 +00:00
Chris PeBenito
a8671ae5b2 enhanced setransd support from darrel goeddel 2006-10-20 14:44:23 +00:00
Chris PeBenito
130f8a4aa5 merge netlabel stuff from labeled-networking branch 2006-10-17 16:58:17 +00:00
Chris PeBenito
e070dd2df0 - Move range transitions to modules.
- Make number of MLS sensitivities, and number of MLS and MCS
  categories configurable as build options.
2006-10-04 17:25:34 +00:00
Chris PeBenito
a9e03b3752 * add a macro for generating category declarations
* fix userdom_search_all_users_home_content() to use search_dir_perms;
* change ssh daemon macro to use userdom_search_all_users_home_dirs() instead of _home_content()
2006-09-21 15:48:15 +00:00
Chris PeBenito
cf7af137c0 add mls fd constraints 2006-09-15 19:05:03 +00:00
Chris PeBenito
9b45c60308 This patch adds a polmatch avperm to arbitrate flow/state's access to
a xfrm policy. It also defines MLS policy for association { sendto,
recvfrom, polmatch }.

NOTE: When an inbound packet is not using an IPSec SA, a check is performed
between the socket label and the unlabeled sid (SYSTEM_HIGH MLS label). For
MLS purposes however, the target of the check should be the MLS label taken
from the node sid (or secmark in the new secmark world). This would present
a severe performance overhead (to make a new sid based on the unlabeled sid
with the MLS taken from the node sid or secmark and then using this sid as
the target). Pending reconciliation of the netlabel, ipsec and iptables contexts,
I have chosen to currently make an exception for unlabeled_t SAs if TE policy
allowed it. A similar problem exists for the outbound case and it has been similarly
handled in the policy below (by making an exception for unlabeled_t).

I am submitting the below limited patch pending a comprehensive patch from
Joy Latten at IBM (latten@austin.ibm.com).

I am not sure if I needed to manually do a "make tolib" in the flask subdir
and submit the results as well. Please let me know if I needed to.

Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com>
2006-09-01 17:06:53 +00:00
Chris PeBenito
a5e2133bc8 patch from dan Wed, 23 Aug 2006 14:03:49 -0400 2006-08-29 02:41:00 +00:00
Chris PeBenito
17de1b790b remove extra level of directory 2006-07-12 20:32:27 +00:00