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
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
|
#include "vat.h"
vat_main_t vat_main;
void
vat_suspend (vlib_main_t * vm, f64 interval)
{
vlib_process_suspend (vm, interval);
}
static u8 *
format_api_error (u8 * s, va_list * args)
{
vat_main_t *vam = va_arg (*args, vat_main_t *);
i32 error = va_arg (*args, u32);
uword *p;
p = hash_get (vam->error_string_by_error_number, -error);
if (p)
s = format (s, "%s", p[0]);
else
s = format (s, "%d", error);
return s;
}
static void
init_error_string_table (vat_main_t * vam)
{
vam->error_string_by_error_number = hash_create (0, sizeof (uword));
#define _(n,v,s) hash_set (vam->error_string_by_error_number, -v, s);
foreach_vnet_api_error;
#undef _
hash_set (vam->error_string_by_error_number, 99, "Misc");
}
static clib_error_t *
api_main_init (vlib_main_t * vm)
{
vat_main_t *vam = &vat_main;
int rv;
int vat_plugin_init (vat_main_t * vam);
vam->vlib_main = vm;
vam->my_client_index = (u32) ~ 0;
/* Ensure that vam->inbuf is never NULL */
vec_validate (vam->inbuf, 0);
init_error_string_table (vam);
rv = vat_plugin_init (vam);
if (rv)
clib_warning ("vat_plugin_init returned %d", rv);
return 0;
}
VLIB_INIT_FUNCTION (api_main_init);
void
vat_plugin_hash_create (void)
{
vat_main_t *vam = &vat_main;
vam->sw_if_index_by_interface_name = hash_create_string (0, sizeof (uword));
vam->function_by_name = hash_create_string (0, sizeof (uword));
vam->help_by_name = hash_create_string (0, sizeof (uword));
}
static clib_error_t *
api_command_fn (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
vat_main_t *vam = &vat_main;
unformat_input_t _input;
uword c;
u8 *cmdp, *argsp, *this_cmd;
uword *p;
u32 arg_len;
int rv;
int (*fp) (vat_main_t *);
api_main_t *am = &api_main;
vam->vl_input_queue = am->shmem_hdr->vl_input_queue;
#ifdef __COVERITY__
/*
* Convince Coverity that it's not a NULL pointer...
* Done once for real below, since we never vec_free(vam->inbuf);
*/
vec_validate (vam->inbuf, 0);
#endif
vec_reset_length (vam->inbuf);
vam->input = &_input;
while (((c = unformat_get_input (input)) != '\n') &&
(c != UNFORMAT_END_OF_INPUT))
vec_add1 (vam->inbuf, c);
/* Add 1 octet's worth of extra space in case there are no args... */
vec_add1 (vam->inbuf, 0);
/*$$$$ reinstall macro evaluator */
/* Split input into cmd + args */
this_cmd = cmdp = vam->inbuf;
/* Skip leading whitespace */
while (cmdp < (this_cmd + vec_len (this_cmd)))
{
if (*cmdp == ' ' || *cmdp == '\t' || *cmdp == '\n')
{
cmdp++;
}
else
break;
}
argsp = cmdp;
/* Advance past the command */
while (argsp < (this_cmd + vec_len (this_cmd)))
{
if (*argsp != ' ' && *argsp != '\t' && *argsp != '\n' && argsp != 0)
{
argsp++;
}
else
break;
}
/* NULL terminate the command */
*argsp++ = 0;
while (argsp < (this_cmd + vec_len (this_cmd)))
{
if (*argsp == ' ' || *argsp == '\t' || *argsp == '\n')
{
argsp++;
}
else
break;
}
/* Blank input line? */
if (*cmdp == 0)
return 0;
p = hash_get_mem (vam->function_by_name, cmdp);
if (p == 0)
{
return clib_error_return (0, "'%s': function not found\n", cmdp);
}
arg_len = strlen ((char *) argsp);
unformat_init_string (vam->input, (char *) argsp, arg_len);
fp = (void *) p[0];
rv = (*fp) (vam);
if (rv < 0)
{
unformat_free (vam->input);
return clib_error_return (0,
"%s error: %U\n", cmdp,
format_api_error, vam, rv);
}
if (vam->regenerate_interface_table)
{
vam->regenerate_interface_table = 0;
api_sw_interface_dump (vam);
}
unformat_free (vam->input);
return 0;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (api_command, static) =
{
.path = "binary-api",
.short_help = "binary-api [help] <name> [<args>]",
.function = api_command_fn,
};
/* *INDENT-ON* */
void
api_cli_output (void *notused, const char *fmt, ...)
{
va_list va;
vat_main_t *vam = &vat_main;
vlib_main_t *vm = vam->vlib_main;
vlib_process_t *cp = vlib_get_current_process (vm);
u8 *s;
va_start (va, fmt);
s = va_format (0, fmt, &va);
va_end (va);
/* Terminate with \n if not present. */
if (vec_len (s) > 0 && s[vec_len (s) - 1] != '\n')
vec_add1 (s, '\n');
if ((!cp) || (!cp->output_function))
fformat (stdout, "%v", s);
else
cp->output_function (cp->output_function_arg, s, vec_len (s));
vec_free (s);
}
u16
vl_client_get_first_plugin_msg_id (char *plugin_name)
{
api_main_t *am = &api_main;
vl_api_msg_range_t *rp;
uword *p;
p = hash_get_mem (am->msg_range_by_name, plugin_name);
if (p == 0)
return ~0;
rp = vec_elt_at_index (am->msg_ranges, p[0]);
return (rp->first_msg_id);
}
uword
unformat_sw_if_index (unformat_input_t * input, va_list * args)
{
u32 *result = va_arg (*args, u32 *);
vnet_main_t *vnm = vnet_get_main ();
u32 sw_if_index = ~0;
u8 *if_name;
uword *p;
if (unformat (input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index))
{
*result = sw_if_index;
return 1;
}
return 0;
}
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
|
