struct avc_node * avc_insert (u32 ssid, u32 tsid, u16 tclass, struct avc_entry * ae);
Insert an AVC entry for the SID pair (ssid, tsid) and class tclass. The access vectors and the sequence number are normally provided by the security server in response to a security_compute_av call. If the sequence number ae->avd.seqno is not less than the latest revocation notification, then the function copies the access vectors into a cache entry, returns avc_node inserted. Otherwise, this function returns NULL.