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Andrew Cooper
db28492ac8
No functional change. Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: Daniel P. Smith <dpsmith@apertussolutions.com>
41 lines
847 B
Plaintext
41 lines
847 B
Plaintext
#
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# Constraints are defined by:
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#
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# constrain class_set perm_set expression ;
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#
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# expression : ( expression )
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# | not expression
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# | expression and expression
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# | expression or expression
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# | u1 op u2
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# | r1 role_op r2
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# | t1 op t2
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# | u1 op names
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# | u2 op names
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# | r1 op names
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# | r2 op names
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# | t1 op names
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# | t2 op names
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#
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# op : == | !=
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# role_op : == | != | eq | dom | domby | incomp
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#
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# names : name | { name_list }
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# name_list : name | name_list name
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#
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# Prevent event channels and grants between different users. This could be
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# further limited to only restricting those domains using the vm_r role.
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constrain event bind (
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u1 == system_u or
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u2 == system_u or
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u1 == u2
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);
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constrain grant { map_read map_write copy } (
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u1 == system_u or
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u2 == system_u or
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u1 == u2
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);
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