FD.io VPP  v19.04.4-rc0-5-ge88582fac
Vector Packet Processing
mac_address.c
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1 /*
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:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
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.
14  */
15 
17 
18 /* *INDENT-OFF* */
19 const mac_address_t ZERO_MAC_ADDRESS = {
20  .bytes = {
21  0, 0, 0, 0, 0, 0,
22  },
23 };
24 /* *INDENT-ON* */
25 
26 u8 *
27 format_mac_address_t (u8 * s, va_list * args)
28 {
29  const mac_address_t *mac = va_arg (*args, mac_address_t *);
30 
31  return format (s, "%02x:%02x:%02x:%02x:%02x:%02x",
32  mac->bytes[0], mac->bytes[1], mac->bytes[2],
33  mac->bytes[3], mac->bytes[4], mac->bytes[5]);
34 }
35 
36 uword
37 unformat_mac_address_t (unformat_input_t * input, va_list * args)
38 {
39  mac_address_t *mac = va_arg (*args, mac_address_t *);
40  u32 i, a[3];
41 
42  if (unformat (input, "%_%X:%X:%X:%X:%X:%X%_",
43  1, &mac->bytes[0], 1, &mac->bytes[1], 1, &mac->bytes[2],
44  1, &mac->bytes[3], 1, &mac->bytes[4], 1, &mac->bytes[5]))
45  return (1);
46  else if (unformat (input, "%_%x.%x.%x%_", &a[0], &a[1], &a[2]))
47  {
48  for (i = 0; i < ARRAY_LEN (a); i++)
49  if (a[i] >= (1 << 16))
50  return 0;
51 
52  mac->bytes[0] = (a[0] >> 8) & 0xff;
53  mac->bytes[1] = (a[0] >> 0) & 0xff;
54  mac->bytes[2] = (a[1] >> 8) & 0xff;
55  mac->bytes[3] = (a[1] >> 0) & 0xff;
56  mac->bytes[4] = (a[2] >> 8) & 0xff;
57  mac->bytes[5] = (a[2] >> 0) & 0xff;
58 
59  return (1);
60  }
61  return (0);
62 }
63 
64 /*
65  * fd.io coding-style-patch-verification: ON
66  *
67  * Local Variables:
68  * eval: (c-set-style "gnu")
69  * End:
70  */
a
Definition: bitmap.h:538
int i
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:424
unsigned char u8
Definition: types.h:56
unsigned int u32
Definition: types.h:88
struct _unformat_input_t unformat_input_t
uword unformat_mac_address_t(unformat_input_t *input, va_list *args)
Definition: mac_address.c:37
#define ARRAY_LEN(x)
Definition: clib.h:62
u64 uword
Definition: types.h:112
u8 * format_mac_address_t(u8 *s, va_list *args)
Definition: mac_address.c:27
vl_api_mac_address_t mac
Definition: gbp.api:120
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:972