Displaying 1 result from an estimated 1 matches for "udp_local_port_range_start".
2016 Jul 04
2
[PATCH] core/lwip: Avoid immediate reuse of UDP port numbers
...f *p, ip_addr_t *dst_ip,
}
/**
+ * A nastly hack featuring 'goto' statements that allocates a
+ * new UDP local port. Based on equivalent code in tcp_new_port()
+ *
+ * @return a new (free) local UDP port number
+ */
+static u16_t
+udp_new_port(void)
+{
+ struct udp_pcb *pcb;
+#ifndef UDP_LOCAL_PORT_RANGE_START
+/* From http://www.iana.org/assignments/port-numbers:
+ "The Dynamic and/or Private Ports are those from 49152 through 65535" */
+#define UDP_LOCAL_PORT_RANGE_START 0xc000
+#define UDP_LOCAL_PORT_RANGE_END 0xffff
+#endif
+ static u16_t port = UDP_LOCAL_PORT_RANGE_START;
+
+ again:...