libsepol,checkpolicy: introduce neveraudit types #473
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Introduce neveraudit types i.e. types that should never trigger audit messages. This allows the AVC to skip all audit-related processing for such types. Note that neveraudit differs from dontaudit not only wrt being applied for all checks with a given source type but also in that it disables all auditing, not just permission denials. When a type is both a permissive type and a neveraudit type, the security server can short-circuit the security_compute_av() logic, rendering the type equivalent to an unconfined type. Signed-off-by: Stephen Smalley <[email protected]>
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Introduce neveraudit types i.e. types that should never trigger audit messages. This allows the AVC to skip all audit-related processing for such types. Note that neveraudit differs from dontaudit not only wrt being applied for all checks with a given source type but also in that it disables all auditing, not just permission denials.
When a type is both a permissive type and a neveraudit type, the security server can short-circuit the security_compute_av() logic, rendering the type equivalent to an unconfined type.
Test and doc updates still TBD.