#define SO_TIMESTAMPING 0x0023
#define SCM_TIMESTAMPING SO_TIMESTAMPING
+#define SO_RXQ_OVFL 0x0024
+
/* Security levels - as per NRL IPv6 - don't actually do anything */
#define SO_SECURITY_AUTHENTICATION 0x5001
#define SO_SECURITY_ENCRYPTION_TRANSPORT 0x5002