void eth_set_current(void); /* set nterface to ethcur var */
int eth_get_dev_index(void); /* get the device index */
-void eth_parse_enetaddr(const char *addr, uchar *enetaddr);
-int eth_env_get_enetaddr(const char *name, uchar *enetaddr);
-int eth_env_set_enetaddr(const char *name, const uchar *enetaddr);
/**
* eth_env_set_enetaddr_by_index() - set the MAC address environment variable