1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
/*
* ethernet/arp.c: IP v4 ARP node
*
* Copyright (c) 2010 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <vnet/ethernet/arp_packet.h>
#include <vnet/ethernet/ethernet.h>
#include <vnet/ip/format.h>
u8 *
format_ethernet_arp_opcode (u8 * s, va_list * va)
{
ethernet_arp_opcode_t o = va_arg (*va, ethernet_arp_opcode_t);
char *t = 0;
switch (o)
{
#define _(f) case ETHERNET_ARP_OPCODE_##f: t = #f; break;
foreach_ethernet_arp_opcode;
#undef _
default:
return format (s, "unknown 0x%x", o);
}
return format (s, "%s", t);
}
u8 *
format_ethernet_arp_hardware_type (u8 * s, va_list * va)
{
ethernet_arp_hardware_type_t h = va_arg (*va, ethernet_arp_hardware_type_t);
char *t = 0;
switch (h)
{
#define _(n,f) case n: t = #f; break;
foreach_ethernet_arp_hardware_type;
#undef _
default:
return format (s, "unknown 0x%x", h);
}
return format (s, "%s", t);
}
u8 *
format_ethernet_arp_header (u8 * s, va_list * va)
{
ethernet_arp_header_t *a = va_arg (*va, ethernet_arp_header_t *);
u32 max_header_bytes = va_arg (*va, u32);
u32 indent;
u16 l2_type, l3_type;
if (max_header_bytes != 0 && sizeof (a[0]) > max_header_bytes)
return format (s, "ARP header truncated");
l2_type = clib_net_to_host_u16 (a->l2_type);
l3_type = clib_net_to_host_u16 (a->l3_type);
indent = format_get_indent (s);
s = format (s, "%U, type %U/%U, address size %d/%d",
format_ethernet_arp_opcode, clib_net_to_host_u16 (a->opcode),
format_ethernet_arp_hardware_type, l2_type,
format_ethernet_type, l3_type,
a->n_l2_address_bytes, a->n_l3_address_bytes);
if (l2_type == ETHERNET_ARP_HARDWARE_TYPE_ethernet
&& l3_type == ETHERNET_TYPE_IP4)
{
s = format (s, "\n%U%U/%U -> %U/%U",
format_white_space, indent,
format_mac_address_t, &a->ip4_over_ethernet[0].mac,
format_ip4_address, &a->ip4_over_ethernet[0].ip4,
format_mac_address_t, &a->ip4_over_ethernet[1].mac,
format_ip4_address, &a->ip4_over_ethernet[1].ip4);
}
else
{
uword n2 = a->n_l2_address_bytes;
uword n3 = a->n_l3_address_bytes;
s = format (s, "\n%U%U/%U -> %U/%U",
format_white_space, indent,
format_hex_bytes, a->data + 0 * n2 + 0 * n3, n2,
format_hex_bytes, a->data + 1 * n2 + 0 * n3, n3,
format_hex_bytes, a->data + 1 * n2 + 1 * n3, n2,
format_hex_bytes, a->data + 2 * n2 + 1 * n3, n3);
}
return s;
}
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
|
