#ifndef __MAC_ADDRESS_H__
#define __MAC_ADDRESS_H__
-#include <vnet/ethernet/ethernet.h>
+#include <vlib/vlib.h>
typedef struct mac_address_t_
{
- u8 bytes[6];
+ union
+ {
+ u8 bytes[6];
+ struct
+ {
+ u32 first_4;
+ u16 last_2;
+ } __clib_packed u;
+ };
} mac_address_t;
+STATIC_ASSERT ((sizeof (mac_address_t) == 6),
+ "MAC address must represent the on wire format");
+
extern const mac_address_t ZERO_MAC_ADDRESS;
+always_inline u64
+ethernet_mac_address_u64 (const u8 * a)
+{
+ return (((u64) a[0] << (u64) (5 * 8))
+ | ((u64) a[1] << (u64) (4 * 8))
+ | ((u64) a[2] << (u64) (3 * 8))
+ | ((u64) a[3] << (u64) (2 * 8))
+ | ((u64) a[4] << (u64) (1 * 8)) | ((u64) a[5] << (u64) (0 * 8)));
+}
+
+always_inline void
+ethernet_mac_address_from_u64 (u64 u, u8 * a)
+{
+ i8 ii;
+
+ for (ii = 5; ii >= 0; ii--)
+ {
+ a[ii] = u & 0xFF;
+ u = u >> 8;
+ }
+}
+
+static inline int
+ethernet_mac_address_is_multicast_u64 (u64 a)
+{
+ return (a & (1ULL << (5 * 8))) != 0;
+}
+
+static inline int
+ethernet_mac_address_is_zero (const u8 * mac)
+{
+ return ((*((u32 *) mac) == 0) && (*((u16 *) (mac + 4)) == 0));
+}
+
+static inline void
+ethernet_mac_address_generate (u8 * mac)
+{
+ u32 rnd = clib_cpu_time_now ();
+ rnd = random_u32 (&rnd);
+
+ memcpy (mac + 2, &rnd, sizeof (rnd));
+ mac[0] = 2;
+ mac[1] = 0xfe;
+}
+
+static inline int
+ethernet_mac_address_equal (const u8 * a, const u8 * b)
+{
+ return ((*((u32 *) a) == (*((u32 *) b))) &&
+ (*((u16 *) (a + 4)) == (*((u16 *) (b + 4)))));
+}
+
static_always_inline void
mac_address_from_bytes (mac_address_t * mac, const u8 * bytes)
{
- clib_memcpy (mac->bytes, bytes, sizeof (*mac));
+ /* zero out the last 2 bytes, then copy over only 6 */
+ clib_memcpy_fast (mac->bytes, bytes, 6);
+}
+
+static_always_inline void
+mac_address_to_bytes (const mac_address_t * mac, u8 * bytes)
+{
+ /* zero out the last 2 bytes, then copy over only 6 */
+ clib_memcpy_fast (bytes, mac->bytes, 6);
}
static_always_inline int
mac_address_is_zero (const mac_address_t * mac)
{
- return (ethernet_mac_address_is_zero (mac->bytes));
+ return (0 == mac->u.first_4 && 0 == mac->u.last_2);
}
static_always_inline u64
mac_address_as_u64 (const mac_address_t * mac)
{
- return (ethernet_mac_address_u64 (mac->bytes));
+ u64 *as_u64;
+
+ as_u64 = (u64 *) mac->bytes;
+
+ return (*as_u64);
+}
+
+static_always_inline void
+mac_address_from_u64 (mac_address_t * mac, u64 u)
+{
+ clib_memcpy (mac->bytes, &u, 6);
}
static_always_inline void
-mac_address_from_u64 (u64 u, mac_address_t * mac)
+mac_address_copy (mac_address_t * dst, const mac_address_t * src)
+{
+ mac_address_from_bytes (dst, src->bytes);
+}
+
+static_always_inline int
+mac_address_cmp (const mac_address_t * a, const mac_address_t * b)
+{
+ return (memcmp (a->bytes, b->bytes, 6));
+}
+
+static_always_inline int
+mac_address_equal (const mac_address_t * a, const mac_address_t * b)
+{
+ return (a->u.last_2 == b->u.last_2 && a->u.first_4 == b->u.first_4);
+}
+
+static_always_inline void
+mac_address_set_zero (mac_address_t * mac)
+{
+ mac->u.first_4 = 0;
+ mac->u.last_2 = 0;
+}
+
+static_always_inline int
+mac_address_n_bits_set (const mac_address_t * a)
{
- ethernet_mac_address_from_u64 (u, mac->bytes);
+ return (count_set_bits (mac_address_as_u64 (a)));
}
+extern void mac_address_increment (mac_address_t * mac);
+extern uword unformat_mac_address_t (unformat_input_t * input,
+ va_list * args);
extern u8 *format_mac_address_t (u8 * s, va_list * args);
#endif