Exemple #1
0
csp_socket_t * csp_socket(uint32_t opts) {
	
	/* Validate socket options */
#ifndef CSP_USE_RDP
	if (opts & CSP_SO_RDPREQ) {
		csp_log_error("Attempt to create socket that requires RDP, but CSP was compiled without RDP support\r\n");
		return NULL;
	}
#endif

#ifndef CSP_USE_XTEA
	if (opts & CSP_SO_XTEAREQ) {
		csp_log_error("Attempt to create socket that requires XTEA, but CSP was compiled without XTEA support\r\n");
		return NULL;
	}
#endif

#ifndef CSP_USE_HMAC
	if (opts & CSP_SO_HMACREQ) {
		csp_log_error("Attempt to create socket that requires HMAC, but CSP was compiled without HMAC support\r\n");
		return NULL;
	} 
#endif

#ifndef CSP_USE_CRC32
	if (opts & CSP_SO_CRC32REQ) {
		csp_log_error("Attempt to create socket that requires CRC32, but CSP was compiled without CRC32 support\r\n");
		return NULL;
	} 
#endif
	
	/* Drop packet if reserved flags are set */
	if (opts & ~(CSP_SO_RDPREQ | CSP_SO_XTEAREQ | CSP_SO_HMACREQ | CSP_SO_CRC32REQ | CSP_SO_CONN_LESS)) {
		csp_log_error("Invalid socket option\r\n");
		return NULL;
	}

	/* Use CSP buffers instead? */
	csp_socket_t * sock = csp_conn_allocate(CONN_SERVER);
	if (sock == NULL)
		return NULL;

	/* If connectionless, init the queue to a pre-defined size
	 * if not, the user must init the queue using csp_listen */
	if (opts & CSP_SO_CONN_LESS) {
		sock->socket = csp_queue_create(CSP_CONN_QUEUE_LENGTH, sizeof(csp_packet_t *));
		if (sock->socket == NULL)
			return NULL;
	} else {
		sock->socket = NULL;
	}
	sock->opts = opts;

	return sock;

}
Exemple #2
0
csp_conn_t * csp_conn_new(csp_id_t idin, csp_id_t idout) {

    /* Allocate connection structure */
    csp_conn_t * conn = csp_conn_allocate(CONN_CLIENT);

    if (conn) {
        /* No lock is needed here, because nobody else *
         * has a reference to this connection yet.     */
        conn->idin.ext = idin.ext;
        conn->idout.ext = idout.ext;
        conn->timestamp = csp_get_ms();

        /* Ensure connection queue is empty */
        csp_conn_flush_rx_queue(conn);
    }

    return conn;

}