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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
/*
* Copyright (c) 2015 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 <vat/vat.h>
#include <vnet/ip/ip.h>
uword unformat_sw_if_index (unformat_input_t * input, va_list * args)
{
vat_main_t * vam = va_arg (*args, vat_main_t *);
u32 * result = va_arg (*args, u32 *);
u8 * if_name;
uword * p;
if (!unformat (input, "%s", &if_name))
return 0;
p = hash_get_mem (vam->sw_if_index_by_interface_name, if_name);
if (p == 0)
return 0;
*result = p[0];
return 1;
}
/* Parse an IP4 address %d.%d.%d.%d. */
uword unformat_ip4_address (unformat_input_t * input, va_list * args)
{
u8 * result = va_arg (*args, u8 *);
unsigned a[4];
if (! unformat (input, "%d.%d.%d.%d", &a[0], &a[1], &a[2], &a[3]))
return 0;
if (a[0] >= 256 || a[1] >= 256 || a[2] >= 256 || a[3] >= 256)
return 0;
result[0] = a[0];
result[1] = a[1];
result[2] = a[2];
result[3] = a[3];
return 1;
}
uword
unformat_ethernet_address (unformat_input_t * input, va_list * args)
{
u8 * result = va_arg (*args, u8 *);
u32 i, a[6];
if (! unformat (input, "%_%x:%x:%x:%x:%x:%x%_",
&a[0], &a[1], &a[2], &a[3], &a[4], &a[5]))
return 0;
/* Check range. */
for (i = 0; i < 6; i++)
if (a[i] >= (1 << 8))
return 0;
for (i = 0; i < 6; i++)
result[i] = a[i];
return 1;
}
/* Returns ethernet type as an int in host byte order. */
uword
unformat_ethernet_type_host_byte_order (unformat_input_t * input,
va_list * args)
{
u16 * result = va_arg (*args, u16 *);
int type;
/* Numeric type. */
if (unformat (input, "0x%x", &type)
|| unformat (input, "%d", &type))
{
if (type >= (1 << 16))
return 0;
*result = type;
return 1;
}
return 0;
}
/* Parse an IP6 address. */
uword unformat_ip6_address (unformat_input_t * input, va_list * args)
{
ip6_address_t * result = va_arg (*args, ip6_address_t *);
u16 hex_quads[8];
uword hex_quad, n_hex_quads, hex_digit, n_hex_digits;
uword c, n_colon, double_colon_index;
n_hex_quads = hex_quad = n_hex_digits = n_colon = 0;
double_colon_index = ARRAY_LEN (hex_quads);
while ((c = unformat_get_input (input)) != UNFORMAT_END_OF_INPUT)
{
hex_digit = 16;
if (c >= '0' && c <= '9')
hex_digit = c - '0';
else if (c >= 'a' && c <= 'f')
hex_digit = c + 10 - 'a';
else if (c >= 'A' && c <= 'F')
hex_digit = c + 10 - 'A';
else if (c == ':' && n_colon < 2)
n_colon++;
else
{
unformat_put_input (input);
break;
}
/* Too many hex quads. */
if (n_hex_quads >= ARRAY_LEN (hex_quads))
return 0;
if (hex_digit < 16)
{
hex_quad = (hex_quad << 4) | hex_digit;
/* Hex quad must fit in 16 bits. */
if (n_hex_digits >= 4)
return 0;
n_colon = 0;
n_hex_digits++;
}
/* Save position of :: */
if (n_colon == 2)
{
/* More than one :: ? */
if (double_colon_index < ARRAY_LEN (hex_quads))
return 0;
double_colon_index = n_hex_quads;
}
if (n_colon > 0 && n_hex_digits > 0)
{
hex_quads[n_hex_quads++] = hex_quad;
hex_quad = 0;
n_hex_digits = 0;
}
}
if (n_hex_digits > 0)
hex_quads[n_hex_quads++] = hex_quad;
{
word i;
/* Expand :: to appropriate number of zero hex quads. */
if (double_colon_index < ARRAY_LEN (hex_quads))
{
word n_zero = ARRAY_LEN (hex_quads) - n_hex_quads;
for (i = n_hex_quads - 1; i >= (signed) double_colon_index; i--)
hex_quads[n_zero + i] = hex_quads[i];
for (i = 0; i < n_zero; i++)
hex_quads[double_colon_index + i] = 0;
n_hex_quads = ARRAY_LEN (hex_quads);
}
/* Too few hex quads given. */
if (n_hex_quads < ARRAY_LEN (hex_quads))
return 0;
for (i = 0; i < ARRAY_LEN (hex_quads); i++)
result->as_u16[i] = clib_host_to_net_u16 (hex_quads[i]);
return 1;
}
}
u8 * format_ip4_address (u8 * s, va_list * args)
{
u8 * a = va_arg (*args, u8 *);
return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
}
u8 * format_ethernet_address (u8 * s, va_list * args)
{
u8 * a = va_arg (*args, u8 *);
return format (s, "%02x:%02x:%02x:%02x:%02x:%02x",
a[0], a[1], a[2], a[3], a[4], a[5]);
}
void vat_plugin_api_reference(void) { }
|
