rbacsep: type transition conflicts uncovered

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I was going through and doing refactoring on the rbacsep with the goal
of making the branch compilable again after doing all the derived type
collapsing.  I ran into a problem with type transition conflicts.  There
are several domains which have a type transition back to the caller
domain, such as su, sudo, (session) dbus, ssh-agent.  But now that the
derived types are collapsed, we get conflicts such as:

type_transition sudo_t shell_exec_t:process auditadm_t;
type_transition sudo_t shell_exec_t:process secadm_t;
type_transition sudo_t shell_exec_t:process staff_t;
type_transition sudo_t shell_exec_t:process sysadm_t;
type_transition sudo_t shell_exec_t:process user_t;

It would seem that there are two solutions for this:

1. keep derived types for these affected domains
2. make these applications SELinux aware

We can't collapse user domains because of their vast differences.

-- 
Chris PeBenito
Tresys Technology, LLC
(410) 290-1411 x150


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