SSL_set_msg_callback
SSL_set_msg_callback(con, SSL_trace);
SSL_set_msg_callback(con, msg_cb);
SSL_set_msg_callback(con, SSL_trace);
SSL_set_msg_callback(con, msg_cb);
SSL_set_msg_callback(con, SSL_trace);
SSL_set_msg_callback(con, msg_cb);
SSL_set_msg_callback(con, SSL_trace);
SSL_set_msg_callback(con, msg_cb);
void SSL_set_msg_callback(SSL *ssl,
SSL_set_msg_callback(srv->tls, f);
SSL_set_msg_callback(*cssl, SSL_trace);
SSL_set_msg_callback(*cssl, noise_msg_callback);
SSL_set_msg_callback(clientquic, dgram_cb);
SSL_set_msg_callback(clientquic, SSL_trace);
SSL_set_msg_callback(clientquic, SSL_trace);
SSL_set_msg_callback(clientquic2, SSL_trace);
SSL_set_msg_callback(serverssl, assert_no_end_of_early_data);
SSL_set_msg_callback(clientssl, assert_no_end_of_early_data);
SSL_set_msg_callback(clientssl, SSL_trace);
SSL_set_msg_callback(clientssl, server_response_check_cb); /* and activate callback */