int avc_has_perm (u32 ssid, u32 tsid, u16 tclass, u32 requested, struct avc_audit_data * auditdata);
Check the AVC to determine whether the requested permissions are granted for the SID pair (ssid, tsid), interpreting the permissions based on tclass, and call the security server on a cache miss to obtain a new decision and add it to the cache. Audit the granting or denial of permissions in accordance with the policy. Return 0 if all requested permissions are granted, -EACCES if any permissions are denied, or another -errno upon other errors.