#include <linux/ctype.h>	/* tolower() */

int is_multicast_mac_addr(const u8 *addr)
{
        return ((addr[0] != 0xff) && (0x01 & addr[0]));
}

int is_broadcast_mac_addr(const u8 *addr)
{
	return ((addr[0] == 0xff) && (addr[1] == 0xff) && (addr[2] == 0xff) &&   \
		(addr[3] == 0xff) && (addr[4] == 0xff) && (addr[5] == 0xff));
}

int is_zero_mac_addr(const u8 *addr)
{
	return ((addr[0] == 0x00) && (addr[1] == 0x00) && (addr[2] == 0x00) &&   \
		(addr[3] == 0x00) && (addr[4] == 0x00) && (addr[5] == 0x00));
}