SSL3_RT_QUIC_PACKET
qrx->msg_callback(0, OSSL_QUIC1_VERSION, SSL3_RT_QUIC_PACKET, sop,
qtx->msg_callback(1, OSSL_QUIC1_VERSION, SSL3_RT_QUIC_PACKET, data, l,
case SSL3_RT_QUIC_PACKET: {