2 * Copyright (c) 2018 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #ifndef __MAC_ADDRESS_H__
17 #define __MAC_ADDRESS_H__
19 #include <vnet/ethernet/ethernet.h>
21 typedef struct mac_address_t_
34 STATIC_ASSERT ((sizeof (mac_address_t) == 6),
35 "MAC address must represent the on wire format");
37 extern const mac_address_t ZERO_MAC_ADDRESS;
39 static_always_inline void
40 mac_address_from_bytes (mac_address_t * mac, const u8 * bytes)
42 /* zero out the last 2 bytes, then copy over only 6 */
43 clib_memcpy (mac->bytes, bytes, 6);
46 static_always_inline void
47 mac_address_to_bytes (const mac_address_t * mac, u8 * bytes)
49 /* zero out the last 2 bytes, then copy over only 6 */
50 clib_memcpy (bytes, mac->bytes, 6);
53 static_always_inline int
54 mac_address_is_zero (const mac_address_t * mac)
56 return (0 == mac->u.first_4 && 0 == mac->u.last_2);
59 static_always_inline u64
60 mac_address_as_u64 (const mac_address_t * mac)
64 as_u64 = (u64 *) mac->bytes;
69 static_always_inline void
70 mac_address_from_u64 (u64 u, mac_address_t * mac)
72 clib_memcpy (mac->bytes, &u, 6);
75 static_always_inline void
76 mac_address_copy (mac_address_t * dst, const mac_address_t * src)
78 mac_address_from_bytes (dst, src->bytes);
81 extern uword unformat_mac_address_t (unformat_input_t * input,
83 extern u8 *format_mac_address_t (u8 * s, va_list * args);
88 * fd.io coding-style-patch-verification: ON
91 * eval: (c-set-style "gnu")