1
|
ref='#n200'>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
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
|
/*
* 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.h"
#include "plugin.h"
#include <signal.h>
#include <limits.h>
vat_main_t vat_main;
#include <vlibapi/api_helper_macros.h>
void
vat_suspend (vlib_main_t * vm, f64 interval)
{
/* do nothing in the standalone version, just return */
}
int
connect_to_vpe (char *name)
{
vat_main_t *vam = &vat_main;
api_main_t *am = vlibapi_get_main ();
if (vl_client_connect_to_vlib ("/vpe-api", name, 32) < 0)
return -1;
vam->vl_input_queue = am->shmem_hdr->vl_input_queue;
vam->my_client_index = am->my_client_index;
return 0;
}
vlib_main_t vlib_global_main;
vlib_main_t **vlib_mains;
void
vlib_cli_output (struct vlib_main_t *vm, char *fmt, ...)
{
clib_warning ("BUG");
}
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;
}
void
do_one_file (vat_main_t * vam)
{
int rv;
int (*fp) (vat_main_t * vam);
int arg_len;
unformat_input_t _input;
u8 *cmdp, *argsp;
uword *p;
u8 *this_cmd = 0;
vam->input = &_input;
/* Used by the "quit" command handler */
if (setjmp (vam->jump_buf) != 0)
return;
vam->jump_buf_set = 1;
while (1)
{
if (vam->ifp == stdin)
{
if (vam->exec_mode == 0)
rv = write (1, "vat# ", 5);
else
rv = write (1, "exec# ", 6);
}
_vec_len (vam->inbuf) = 4096;
if (vam->do_exit ||
fgets ((char *) vam->inbuf, vec_len (vam->inbuf), vam->ifp) == 0)
break;
vam->input_line_number++;
vec_free (this_cmd);
this_cmd =
(u8 *) clib_macro_eval (&vam->macro_main, (i8 *) vam->inbuf,
1 /* complain */ );
if (vam->exec_mode == 0)
{
/* Split input into cmd + args */
cmdp = this_cmd;
while (cmdp < (this_cmd + vec_len (this_cmd)))
{
if (*cmdp == ' ' || *cmdp == '\t' || *cmdp == '\n')
{
cmdp++;
}
else
break;
}
argsp = cmdp;
while (argsp < (this_cmd + vec_len (this_cmd)))
{
if (*argsp != ' ' && *argsp != '\t' && *argsp != '\n')
{
argsp++;
}
else
break;
}
*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)
continue;
p = hash_get_mem (vam->function_by_name, cmdp);
if (p == 0)
{
errmsg ("'%s': function not found\n", cmdp);
continue;
}
arg_len = strlen ((char *) argsp);
unformat_init_string (vam->input, (char *) argsp, arg_len);
fp = (void *) p[0];
}
else
{
unformat_init_string (vam->input, (char *) this_cmd,
strlen ((char *) this_cmd));
cmdp = this_cmd;
fp = exec;
}
rv = (*fp) (vam);
if (rv < 0)
errmsg ("%s error: %U\n", cmdp, format_api_error, vam, rv);
unformat_free (vam->input);
if (vam->regenerate_interface_table)
{
vam->regenerate_interface_table = 0;
api_sw_interface_dump (vam);
}
/* Hack to pick up new client index after memfd_segment_create pivot */
if (vam->client_index_invalid)
{
vat_main_t *vam = &vat_main;
api_main_t *am = vlibapi_get_main ();
vam->vl_input_queue = am->shmem_hdr->vl_input_queue;
vam->my_client_index = am->my_client_index;
vam->client_index_invalid = 0;
}
}
}
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 i8 *
eval_current_file (macro_main_t * mm, i32 complain)
{
vat_main_t *vam = &vat_main;
return ((i8 *) format (0, "%s%c", vam->current_file, 0));
}
static i8 *
eval_current_line (macro_main_t * mm, i32 complain)
{
vat_main_t *vam = &vat_main;
return ((i8 *) format (0, "%d%c", vam->input_line_number, 0));
}
static void
signal_handler (int signum, siginfo_t * si, ucontext_t * uc)
{
vat_main_t *vam = &vat_main;
switch (signum)
{
/* these (caught) signals cause the application to exit */
case SIGINT:
case SIGTERM:
if (vam->jump_buf_set)
{
vam->do_exit = 1;
return;
}
/* FALLTHROUGH on purpose */
default:
break;
}
_exit (1);
}
static void
setup_signal_handlers (void)
{
uword i;
struct sigaction sa;
for (i = 1; i < 32; i++)
{
clib_memset (&sa, 0, sizeof (sa));
sa.sa_sigaction = (void *) signal_handler;
sa.sa_flags = SA_SIGINFO;
switch (i)
{
/* these signals take the default action */
case SIGABRT:
case SIGKILL:
case SIGSTOP:
case SIGUSR1:
case SIGUSR2:
case SIGPROF:
continue;
/* ignore SIGPIPE, SIGCHLD */
case SIGPIPE:
case SIGCHLD:
case SIGWINCH:
sa.sa_sigaction = (void *) SIG_IGN;
break;
/* catch and handle all other signals */
default:
break;
}
if (sigaction (i, &sa, 0) < 0)
clib_unix_warning ("sigaction %U", format_signal, i);
}
}
static void
vat_find_plugin_path ()
{
char *p, path[PATH_MAX];
int rv;
u8 *s;
/* find executable path */
if ((rv = readlink ("/proc/self/exe", path, PATH_MAX - 1)) == -1)
return;
/* readlink doesn't provide null termination */
path[rv] = 0;
/* strip filename */
if ((p = strrchr (path, '/')) == 0)
return;
*p = 0;
/* strip bin/ */
if ((p = strrchr (path, '/')) == 0)
return;
*p = 0;
s = format (0, "%s/lib/" CLIB_TARGET_TRIPLET "/vpp_api_test_plugins:"
"%s/lib/vpp_api_test_plugins", path, path);
vec_add1 (s, 0);
vat_plugin_path = (char *) s;
}
int
main (int argc, char **argv)
{
vat_main_t *vam = &vat_main;
unformat_input_t _argv, *a = &_argv;
u8 **input_files = 0;
u8 *output_file = 0;
u8 *chroot_prefix;
u8 *this_input_file;
u8 interactive = 1;
u8 json_output = 0;
int i;
f64 timeout;
clib_mem_init_thread_safe (0, 128 << 20);
clib_macro_init (&vam->macro_main);
clib_macro_add_builtin (&vam->macro_main, "current_file",
eval_current_file);
clib_macro_add_builtin (&vam->macro_main, "current_line",
eval_current_line);
init_error_string_table (vam);
vec_validate (vam->cmd_reply, 0);
vec_reset_length (vam->cmd_reply);
vat_find_plugin_path ();
unformat_init_command_line (a, argv);
while (unformat_check_input (a) != UNFORMAT_END_OF_INPUT)
{
if (unformat (a, "in %s", &this_input_file))
vec_add1 (input_files, this_input_file);
else if (unformat (a, "out %s", &output_file))
;
else if (unformat (a, "script"))
interactive = 0;
else if (unformat (a, "json"))
json_output = 1;
else if (unformat (a, "socket-name %s", &vam->socket_name))
;
else if (unformat (a, "default-socket"))
{
vam->socket_name = format (0, "%s%c", API_SOCKET_FILE, 0);
}
else if (unformat (a, "plugin_path %s", (u8 *) & vat_plugin_path))
vec_add1 (vat_plugin_path, 0);
else if (unformat (a, "plugin_name_filter %s",
(u8 *) & vat_plugin_name_filter))
vec_add1 (vat_plugin_name_filter, 0);
else if (unformat (a, "chroot prefix %s", &chroot_prefix))
{
vl_set_memory_root_path ((char *) chroot_prefix);
}
else
{
fformat
(stderr,
"%s: usage [in <f1> ... in <fn>] [out <fn>] [script] [json]\n"
"[plugin_path <path>][default-socket][socket-name <name>]\n"
"[plugin_name_filter <filter>][chroot prefix <path>]\n",
argv[0]);
exit (1);
}
}
if (output_file)
vam->ofp = fopen ((char *) output_file, "w");
else
vam->ofp = stdout;
if (vam->ofp == NULL)
{
fformat (stderr, "Couldn't open output file %s\n",
output_file ? (char *) output_file : "stdout");
exit (1);
}
clib_time_init (&vam->clib_time);
vat_api_hookup (vam);
vat_plugin_api_reference ();
setup_signal_handlers ();
if (vam->socket_name && vat_socket_connect (vam))
fformat (stderr, "WARNING: socket connection failed");
if ((!vam->socket_client_main || vam->socket_client_main->socket_fd == 0)
&& connect_to_vpe ("vpp_api_test") < 0)
{
svm_region_exit ();
fformat (stderr, "Couldn't connect to vpe, exiting...\n");
exit (1);
}
vam->json_output = json_output;
if (!json_output)
api_sw_interface_dump (vam);
vec_validate (vam->inbuf, 4096);
vam->current_file = (u8 *) "plugin-init";
vat_plugin_init (vam);
for (i = 0; i < vec_len (input_files); i++)
{
vam->ifp = fopen ((char *) input_files[i], "r");
if (vam->ifp == NULL)
{
fformat (stderr, "Couldn't open input file %s\n", input_files[i]);
continue;
}
vam->current_file = input_files[i];
vam->input_line_number = 0;
do_one_file (vam);
fclose (vam->ifp);
}
if (output_file)
fclose (vam->ofp);
if (interactive)
{
vam->ifp = stdin;
vam->ofp = stdout;
vam->current_file = (u8 *) "interactive";
do_one_file (vam);
fclose (vam->ifp);
}
/*
* Particularly when running a script, don't be in a hurry to leave.
* A reply message queued to this process will end up constipating
* the allocation rings.
*/
timeout = vat_time_now (vam) + 2.0;
while (vam->result_ready == 0 && vat_time_now (vam) < timeout)
;
if (vat_time_now (vam) > timeout)
clib_warning ("BUG: message reply spin-wait timeout");
vl_client_disconnect_from_vlib ();
exit (0);
}
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
|
