tls12_record_layer_set_initial_epoch
void tls12_record_layer_set_initial_epoch(struct tls12_record_layer *rl,
void tls12_record_layer_set_initial_epoch(struct tls12_record_layer *rl,
tls12_record_layer_set_initial_epoch(client->rl, dt->initial_epoch);
tls12_record_layer_set_initial_epoch(server->rl, dt->initial_epoch);