aboutsummaryrefslogtreecommitdiffstats
path: root/src/vcl/vcl_cfg.c
blob: 0900b318fcee03762dcdf1d680c5f527b7eaf3f4 (plain)
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
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
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
/*
 * Copyright (c) 2018-2019 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this
 * 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 <vcl/vcl_private.h>

/* NOTE: _vppcom_main is only used until the heap is allocated.
 *       Do not access it directly -- use vcm which will point to
 *       the heap allocated copy after init.
 */
vppcom_main_t _vppcom_main = {
  .debug = VPPCOM_DEBUG_INIT,
  .is_init = 0,
  .app_index = ~0,
};

vppcom_main_t *vcm = &_vppcom_main;

void
vppcom_cfg_init (vppcom_cfg_t * vcl_cfg)
{
  ASSERT (vcl_cfg);

  vcl_cfg->heapsize = (256ULL << 20);
  vcl_cfg->max_workers = 16;
  vcl_cfg->vpp_api_q_length = 1024;
  vcl_cfg->segment_baseva = HIGH_SEGMENT_BASEVA;
  vcl_cfg->segment_size = (256 << 20);
  vcl_cfg->add_segment_size = (128 << 20);
  vcl_cfg->preallocated_fifo_pairs = 8;
  vcl_cfg->rx_fifo_size = (1 << 20);
  vcl_cfg->tx_fifo_size = (1 << 20);
  vcl_cfg->event_queue_size = 2048;
  vcl_cfg->listen_queue_size = CLIB_CACHE_LINE_BYTES / sizeof (u32);
  vcl_cfg->app_timeout = 10 * 60.0;
  vcl_cfg->session_timeout = 10 * 60.0;
  vcl_cfg->accept_timeout = 60.0;
  vcl_cfg->event_ring_size = (128 << 10);
  vcl_cfg->event_log_path = "/dev/shm";
}

#define VCFG_DBG(_lvl, _fmt, _args...) 			\
{							\
  if (vcm->debug > _lvl) 				\
    fprintf (stderr, _fmt "\n", ##_args);		\
}
void
vppcom_cfg_heapsize (char *conf_fname)
{
  vppcom_cfg_t *vcl_cfg = &vcm->cfg;
  FILE *fp;
  char inbuf[4096];
  int argc = 1;
  char **argv = NULL;
  char *arg = NULL;
  char *p;
  int i;
  u8 *sizep;
  u32 size;
  void *vcl_mem;
  void *heap;

  fp = fopen (conf_fname, "r");
  if (fp == NULL)
    {
      VCFG_DBG (0, "VCL<%d>: using default heapsize %lu (0x%lx)",
		getpid (), (unsigned long) vcl_cfg->heapsize,
		(unsigned long) vcl_cfg->heapsize);
      goto defaulted;
    }

  argv = calloc (1, sizeof (char *));
  if (argv == NULL)
    {
      VCFG_DBG (0, "VCL<%d>: calloc failed, using default heapsize %lu"
		" (0x%lx)", getpid (), (unsigned long) vcl_cfg->heapsize,
		(unsigned long) vcl_cfg->heapsize);
      goto defaulted;
    }

  while (1)
    {
      if (fgets (inbuf, 4096, fp) == 0)
	break;
      p = strtok (inbuf, " \t\n");
      while (p != NULL)
	{
	  if (*p == '#')
	    break;
	  argc++;
	  char **tmp = realloc (argv, argc * sizeof (char *));
	  if (tmp == NULL)
	    {
	      VCFG_DBG (0, "VCL<%d>: realloc failed, using default "
			"heapsize %lu (0x%lx)", getpid (),
			(unsigned long) vcl_cfg->heapsize,
			(unsigned long) vcl_cfg->heapsize);
	      goto defaulted;
	    }
	  argv = tmp;
	  arg = strndup (p, 1024);
	  if (arg == NULL)
	    {
	      VCFG_DBG (0, "VCL<%d>: strndup failed, using default "
			"heapsize %lu (0x%lx)", getpid (),
			(unsigned long) vcl_cfg->heapsize,
			(unsigned long) vcl_cfg->heapsize);
	      goto defaulted;
	    }
	  argv[argc - 1] = arg;
	  p = strtok (NULL, " \t\n");
	}
    }

  fclose (fp);
  fp = NULL;

  char **tmp = realloc (argv, (argc + 1) * sizeof (char *));
  if (tmp == NULL)
    {
      VCFG_DBG (0, "VCL<%d>: realloc failed, using default heapsize %lu "
		"(0x%lx)", getpid (), (unsigned long) vcl_cfg->heapsize,
		(unsigned long) vcl_cfg->heapsize);
      goto defaulted;
    }
  argv = tmp;
  argv[argc] = NULL;

  /*
   * Look for and parse the "heapsize" config parameter.
   * Manual since none of the clib infra has been bootstrapped yet.
   *
   * Format: heapsize <nn>[mM][gG]
   */

  for (i = 1; i < (argc - 1); i++)
    {
      if (!strncmp (argv[i], "heapsize", 8))
	{
	  sizep = (u8 *) argv[i + 1];
	  size = 0;
	  while (*sizep >= '0' && *sizep <= '9')
	    {
	      size *= 10;
	      size += *sizep++ - '0';
	    }
	  if (size == 0)
	    {
	      VCFG_DBG (0, "VCL<%d>: parse error '%s %s', using default "
			"heapsize %lu (0x%lx)", getpid (), argv[i],
			argv[i + 1], (unsigned long) vcl_cfg->heapsize,
			(unsigned long) vcl_cfg->heapsize);
	      goto defaulted;
	    }

	  if (*sizep == 'g' || *sizep == 'G')
	    vcl_cfg->heapsize = size << 30;
	  else if (*sizep == 'm' || *sizep == 'M')
	    vcl_cfg->heapsize = size << 20;
	  else
	    {
	      VCFG_DBG (0, "VCL<%d>: parse error '%s %s', using default "
			"heapsize %lu (0x%lx)", getpid (), argv[i],
			argv[i + 1], (unsigned long) vcl_cfg->heapsize,
			(unsigned long) vcl_cfg->heapsize);
	      goto defaulted;
	    }
	}
      free (argv[i]);
    }

defaulted:
  if (fp != NULL)
    fclose (fp);
  if (argv != NULL)
    free (argv);

  vcl_mem = mmap (0, vcl_cfg->heapsize, PROT_READ | PROT_WRITE,
		  MAP_SHARED | MAP_ANONYMOUS, -1, 0);
  if (vcl_mem == MAP_FAILED)
    {
      VCFG_DBG (0, "VCL<%d>: ERROR: mmap(0, %lu == 0x%lx, "
		"PROT_READ | PROT_WRITE,MAP_SHARED | MAP_ANONYMOUS, "
		"-1, 0) failed!", getpid (),
		(unsigned long) vcl_cfg->heapsize,
		(unsigned long) vcl_cfg->heapsize);
      ASSERT (vcl_mem != MAP_FAILED);
      return;
    }
  heap = clib_mem_init_thread_safe (vcl_mem, vcl_cfg->heapsize);
  if (!heap)
    {
      fprintf (stderr, "VCL<%d>: ERROR: clib_mem_init() failed!", getpid ());
      ASSERT (heap);
      return;
    }
  vcl_mem = clib_mem_alloc (sizeof (_vppcom_main));
  if (!vcl_mem)
    {
      clib_warning ("VCL<%d>: ERROR: clib_mem_alloc() failed!", getpid ());
      ASSERT (vcl_mem);
      return;
    }

  clib_memcpy (vcl_mem, &_vppcom_main, sizeof (_vppcom_main));
  vcm = vcl_mem;

  VCFG_DBG (0, "VCL<%d>: allocated VCL heap = %p, size %lu (0x%lx)",
	    getpid (), heap, (unsigned long) vcl_cfg->heapsize,
	    (unsigned long) vcl_cfg->heapsize);
}

void
vppcom_cfg_read_file (char *conf_fname)
{
  vppcom_cfg_t *vcl_cfg = &vcm->cfg;
  int fd;
  unformat_input_t _input, *input = &_input;
  unformat_input_t _line_input, *line_input = &_line_input;
  u8 vc_cfg_input = 0;
  struct stat s;
  u32 uid, gid, q_len;

  fd = open (conf_fname, O_RDONLY);
  if (fd < 0)
    {
      VCFG_DBG (0, "VCL<%d>: using default configuration.", getpid ());
      goto file_done;
    }

  if (fstat (fd, &s) < 0)
    {
      VCFG_DBG (0, "VCL<%d>: failed to stat `%s' using default configuration",
		getpid (), conf_fname);
      goto file_done;
    }

  if (!(S_ISREG (s.st_mode) || S_ISLNK (s.st_mode)))
    {
      VCFG_DBG (0, "VCL<%d>: not a regular file `%s', using default "
		"configuration", getpid (), conf_fname);
      goto file_done;
    }

  unformat_init_clib_file (input, fd);

  while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
    {
      (void) unformat_user (input, unformat_line_input, line_input);
      unformat_skip_white_space (line_input);

      if (unformat (line_input, "vcl {"))
	{
	  vc_cfg_input = 1;
	  unformat_free (line_input);
	  continue;
	}

      if (vc_cfg_input)
	{
	  if (unformat (line_input, "heapsize %U", unformat_memory_size,
			&vcl_cfg->heapsize))
	    {
	      VCFG_DBG (0, "VCL<%d>: configured heapsize %lu", getpid (),
			(unsigned long) vcl_cfg->heapsize);
	    }
	  else
	    if (unformat
		(line_input, "max-workers %u", &vcl_cfg->max_workers))
	    {
	      VCFG_DBG (0, "VCL<%d>: configured max-workers %u", getpid (),
			vcl_cfg->max_workers);
	    }
	  else if (unformat (line_input, "api-prefix %s",
			     &vcl_cfg->vpp_bapi_chroot))
	    {
	      vec_terminate_c_string (vcl_cfg->vpp_bapi_chroot);
	      VCFG_DBG (0, "VCL<%d>: configured api-prefix (%s) ", getpid (),
			vcl_cfg->vpp_bapi_chroot);
	    }
	  else if (unformat (line_input, "api-socket-name %s",
			     &vcl_cfg->vpp_bapi_socket_name))
	    {
	      vec_terminate_c_string (vcl_cfg->vpp_bapi_socket_name);
	      VCFG_DBG (0, "VCL<%d>: configured api-socket-name (%s)",
			getpid (), vcl_cfg->vpp_bapi_socket_name);
	    }
	  else if (unformat (line_input, "vpp-api-q-length %d", &q_len))
	    {
	      if (q_len < vcl_cfg->vpp_api_q_length)
		{
		  fprintf (stderr,
			   "VCL<%d>: ERROR: configured vpp-api-q-length "
			   "(%u) is too small! Using default: %u ", getpid (),
			   q_len, vcl_cfg->vpp_api_q_length);
		}
	      else
		{
		  vcl_cfg->vpp_api_q_length = q_len;

		  VCFG_DBG (0, "VCL<%d>: configured vpp-api-q-length %u",
			    getpid (), vcl_cfg->vpp_api_q_length);
		}
	    }
	  else if (unformat (line_input, "uid %d", &uid))
	    {
	      vl_set_memory_uid (uid);
	      VCFG_DBG (0, "VCL<%d>: configured uid %d", getpid (), uid);
	    }
	  else if (unformat (line_input, "gid %d", &gid))
	    {
	      vl_set_memory_gid (gid);
	      VCFG_DBG (0, "VCL<%d>: configured gid %d", getpid (), gid);
	    }
	  else if (unformat (line_input, "segment-baseva 0x%lx",
			     &vcl_cfg->segment_baseva))
	    {
	      VCFG_DBG (0, "VCL<%d>: configured segment_baseva 0x%lx",
			getpid (), (unsigned long) vcl_cfg->segment_baseva);
	    }
	  else if (unformat (line_input, "segment-size 0x%lx",
			     &vcl_cfg->segment_size))
	    {
	      VCFG_DBG (0, "VCL<%d>: configured segment_size 0x%lx (%lu)",
			getpid (), vcl_cfg->segment_size,
			vcl_cfg->segment_size);
	    }
	  else if (unformat (line_input, "segment-size %lu",
			     &vcl_cfg->segment_size))
	    {
	      VCFG_DBG (0, "VCL<%d>: configured segment_size %lu (0x%lx)",
			getpid (), vcl_cfg->segment_size,
			vcl_cfg->segment_size);
	    }
	  else if (unformat (line_input, "add-segment-size 0x%lx",
			     &vcl_cfg->add_segment_size))
	    {
	      VCFG_DBG (0, "VCL<%d>: configured add_segment_size 0x%lx (%lu)",
			getpid (), vcl_cfg->add_segment_size,
			vcl_cfg->add_segment_size);
	    }
	  else if (unformat (line_input, "add-segment-size %lu",
			     &vcl_cfg->add_segment_size))
	    {
	      VCFG_DBG (0, "VCL<%d>: configured add_segment_size %lu (0x%lx)",
			getpid (), vcl_cfg->add_segment_size,
			vcl_cfg->add_segment_size);
	    }
	  else if (unformat (line_input, "preallocated-fifo-pairs %u",
			     &vcl_cfg->preallocated_fifo_pairs))
	    {
	      VCFG_DBG (0, "VCL<%d>: configured preallocated_fifo_pairs %u "
			"(0x%x)", getpid (), vcl_cfg->preallocated_fifo_pairs,
			vcl_cfg->preallocated_fifo_pairs);
	    }
	  else if (unformat (line_input, "rx-fifo-size 0x%x",
			     &vcl_cfg->rx_fifo_size))
	    {
	      VCFG_DBG (0, "VCL<%d>: configured rx_fifo_size 0x%x (%u)",
			getpid (), vcl_cfg->rx_fifo_size,
			vcl_cfg->rx_fifo_size);
	    }
	  else if (unformat (line_input, "rx-fifo-size %u",
			     &vcl_cfg->rx_fifo_size))
	    {
	      VCFG_DBG (0, "VCL<%d>: configured rx_fifo_size %u (0x%x)",
			getpid (), vcl_cfg->rx_fifo_size,
			vcl_cfg->rx_fifo_size);
	    }
	  else if (unformat (line_input, "tx-fifo-size 0x%x",
			     &vcl_cfg->tx_fifo_size))
	    {
	      VCFG_DBG (0, "VCL<%d>: configured tx_fifo_size 0x%x (%u)",
			getpid (), vcl_cfg->tx_fifo_size,
			vcl_cfg->tx_fifo_size);
	    }
	  else if (unformat (line_input, "tx-fifo-size %u",
			     &vcl_cfg->tx_fifo_size))
	    {
	      VCFG_DBG (0, "VCL<%d>: configured tx_fifo_size %u (0x%x)",
			getpid (), vcl_cfg->tx_fifo_size,
			vcl_cfg->tx_fifo_size);
	    }
	  else if (unformat (line_input, "event-queue-size 0x%x",
			     &vcl_cfg->event_queue_size))
	    {
	      VCFG_DBG (0, "VCL<%d>: configured event_queue_size 0x%x (%u)",
			getpid (), vcl_cfg->event_queue_size,
			vcl_cfg->event_queue_size);
	    }
	  else if (unformat (line_input, "event-queue-size %u",
			     &vcl_cfg->event_queue_size))
	    {
	      VCFG_DBG (0, "VCL<%d>: configured event_queue_size %u (0x%x)",
			getpid (), vcl_cfg->event_queue_size,
			vcl_cfg->event_queue_size);
	    }
	  else if (unformat (line_input, "listen-queue-size 0x%x",
			     &vcl_cfg->listen_queue_size))
	    {
	      VCFG_DBG (0, "VCL<%d>: configured listen_queue_size 0x%x (%u)",
			getpid (), vcl_cfg->listen_queue_size,
			vcl_cfg->listen_queue_size);
	    }
	  else if (unformat (line_input, "listen-queue-size %u",
			     &vcl_cfg->listen_queue_size))
	    {
	      VCFG_DBG (0, "VCL<%d>: configured listen_queue_size %u (0x%x)",
			getpid (), vcl_cfg->listen_queue_size,
			vcl_cfg->listen_queue_size);
	    }
	  else if (unformat (line_input, "app-timeout %f",
			     &vcl_cfg->app_timeout))
	    {
	      VCFG_DBG (0, "VCL<%d>: configured app_timeout %f",
			getpid (), vcl_cfg->app_timeout);
	    }
	  else if (unformat (line_input, "session-timeout %f",
			     &vcl_cfg->session_timeout))
	    {
	      VCFG_DBG (0, "VCL<%d>: configured session_timeout %f",
			getpid (), vcl_cfg->session_timeout);
	    }
	  else if (unformat (line_input, "accept-timeout %f",
			     &vcl_cfg->accept_timeout))
	    {
	      VCFG_DBG (0, "VCL<%d>: configured accept_timeout %f",
			getpid (), vcl_cfg->accept_timeout);
	    }
	  else if (unformat (line_input, "app-proxy-transport-tcp"))
	    {
	      vcl_cfg->app_proxy_transport_tcp = 1;
	      VCFG_DBG (0, "VCL<%d>: configured app_proxy_transport_tcp (%d)",
			getpid (), vcl_cfg->app_proxy_transport_tcp);
	    }
	  else if (unformat (line_input, "app-proxy-transport-udp"))
	    {
	      vcl_cfg->app_proxy_transport_udp = 1;
	      VCFG_DBG (0, "VCL<%d>: configured app_proxy_transport_udp (%d)",
			getpid (), vcl_cfg->app_proxy_transport_udp);
	    }
	  else if (unformat (line_input, "app-scope-local"))
	    {
	      vcl_cfg->app_scope_local = 1;
	      VCFG_DBG (0, "VCL<%d>: configured app_scope_local (%d)",
			getpid (), vcl_cfg->app_scope_local);
	    }
	  else if (unformat (line_input, "app-scope-global"))
	    {
	      vcl_cfg->app_scope_global = 1;
	      VCFG_DBG (0, "VCL<%d>: configured app_scope_global (%d)",
			getpid (), vcl_cfg->app_scope_global);
	    }
	  else if (unformat (line_input, "namespace-secret %lu",
			     &vcl_cfg->namespace_secret))
	    {
	      VCFG_DBG (0, "VCL<%d>: configured namespace_secret %llu "
			"(0x%llx)", getpid (),
			(unsigned long long) vcl_cfg->namespace_secret,
			(unsigned long long) vcl_cfg->namespace_secret);
	    }
	  else if (unformat (line_input, "namespace-id %v",
			     &vcl_cfg->namespace_id))
	    {
	      u32 max_nsid_vec_len = vcl_bapi_max_nsid_len ();
	      u32 nsid_vec_len = vec_len (vcl_cfg->namespace_id);
	      if (nsid_vec_len > max_nsid_vec_len)
		{
		  _vec_len (vcl_cfg->namespace_id) = max_nsid_vec_len;
		  VCFG_DBG (0, "VCL<%d>: configured namespace_id is too long,"
			    " truncated to %d characters!",
			    getpid (), max_nsid_vec_len);
		}

	      VCFG_DBG (0, "VCL<%d>: configured namespace_id %s",
			getpid (), (char *) vcl_cfg->namespace_id);
	    }
	  else if (unformat (line_input, "use-mq-eventfd"))
	    {
	      vcl_cfg->use_mq_eventfd = 1;
	      VCFG_DBG (0, "VCL<%d>: configured with mq with eventfd",
			getpid ());
	    }
	  else if (unformat (line_input, "tls-engine %u",
			     &vcl_cfg->tls_engine))
	    {
	      VCFG_DBG (0, "VCL<%d>: configured tls-engine %u (0x%x)",
			getpid (), vcl_cfg->tls_engine, vcl_cfg->tls_engine);
	    }
	  else if (unformat (line_input, "multi-thread-workers"))
	    {
	      vcl_cfg->mt_wrk_supported = 1;
	      VCFG_DBG (0, "VCL<%d>: configured with multithread workers",
			getpid ());
	    }
	  else if (unformat (line_input, "}"))
	    {
	      vc_cfg_input = 0;
	      VCFG_DBG (0, "VCL<%d>: completed parsing vppcom config!",
			getpid ());
	      unformat_free (line_input);
	      goto input_done;
	    }
	  else
	    {
	      if (line_input->buffer[line_input->index] != '#')
		{
		  clib_warning ("VCL<%d>: Unknown vppcom config option: '%s'",
				getpid (), (char *)
				&line_input->buffer[line_input->index]);
		}
	    }
	  unformat_free (line_input);
	}
    }

input_done:
  unformat_free (input);

file_done:
  if (fd >= 0)
    close (fd);
}

void
vppcom_cfg (vppcom_cfg_t * vcl_cfg)
{
  char *conf_fname, *env_var_str;

  vppcom_cfg_init (vcl_cfg);
  env_var_str = getenv (VPPCOM_ENV_DEBUG);
  if (env_var_str)
    {
      u32 tmp;
      if (sscanf (env_var_str, "%u", &tmp) != 1)
	{
	  VCFG_DBG (0, "VCL<%d>: WARNING: Invalid debug level specified "
		    "in the environment variable " VPPCOM_ENV_DEBUG
		    " (%s)!\n", getpid (), env_var_str);
	}
      else
	{
	  vcm->debug = tmp;
	  VCFG_DBG (0, "VCL<%d>: configured VCL debug level (%u) from "
		    VPPCOM_ENV_DEBUG "!", getpid (), vcm->debug);
	}
    }
  conf_fname = getenv (VPPCOM_ENV_CONF);
  if (!conf_fname)
    conf_fname = VPPCOM_CONF_DEFAULT;
  vppcom_cfg_heapsize (conf_fname);
  vppcom_cfg_read_file (conf_fname);

  /* Regrab cfg after heap initialization */
  vcl_cfg = &vcm->cfg;
  env_var_str = getenv (VPPCOM_ENV_API_PREFIX);
  if (env_var_str)
    {
      vcl_cfg->vpp_bapi_chroot = format (0, "%s", env_var_str);
      vec_terminate_c_string (vcl_cfg->vpp_bapi_chroot);
      VCFG_DBG (0, "VCL<%d>: configured api prefix (%s) from "
		VPPCOM_ENV_API_PREFIX "!", getpid (), env_var_str);
    }
  env_var_str = getenv (VPPCOM_ENV_APP_NAMESPACE_ID);
  if (env_var_str)
    {
      u32 ns_id_vec_len = strlen (env_var_str);

      vec_reset_length (vcm->cfg.namespace_id);
      vec_validate (vcm->cfg.namespace_id, ns_id_vec_len - 1);
      clib_memcpy (vcm->cfg.namespace_id, env_var_str, ns_id_vec_len);

      VCFG_DBG (0, "VCL<%d>: configured namespace_id (%s) from "
		VPPCOM_ENV_APP_NAMESPACE_ID "!", getpid (), env_var_str);
    }
  env_var_str = getenv (VPPCOM_ENV_APP_NAMESPACE_SECRET);
  if (env_var_str)
    {
      u64 tmp;
      if (sscanf (env_var_str, "%llu", (unsigned long long *) &tmp) != 1)
	{
	  VCFG_DBG (0, "VCL<%d>: WARNING: Invalid namespace secret specified"
		    " in the environment variable "
		    VPPCOM_ENV_APP_NAMESPACE_SECRET " (%s)!\n", getpid (),
		    env_var_str);
	}
      else
	{
	  vcm->cfg.namespace_secret = tmp;
	  VCFG_DBG (0, "VCL<%d>: configured namespace secret (%llu) from "
		    VPPCOM_ENV_APP_NAMESPACE_SECRET "!", getpid (),
		    (unsigned long long) vcm->cfg.namespace_secret);
	}
    }
  if (getenv (VPPCOM_ENV_APP_PROXY_TRANSPORT_TCP))
    {
      vcm->cfg.app_proxy_transport_tcp = 1;
      VCFG_DBG (0, "VCL<%d>: configured app_proxy_transport_tcp (%u) from "
		VPPCOM_ENV_APP_PROXY_TRANSPORT_TCP "!", getpid (),
		vcm->cfg.app_proxy_transport_tcp);
    }
  if (getenv (VPPCOM_ENV_APP_PROXY_TRANSPORT_UDP))
    {
      vcm->cfg.app_proxy_transport_udp = 1;
      VCFG_DBG (0, "VCL<%d>: configured app_proxy_transport_udp (%u) from "
		VPPCOM_ENV_APP_PROXY_TRANSPORT_UDP "!", getpid (),
		vcm->cfg.app_proxy_transport_udp);
    }
  if (getenv (VPPCOM_ENV_APP_SCOPE_LOCAL))
    {
      vcm->cfg.app_scope_local = 1;
      VCFG_DBG (0, "VCL<%d>: configured app_scope_local (%u) from "
		VPPCOM_ENV_APP_SCOPE_LOCAL "!", getpid (),
		vcm->cfg.app_scope_local);
    }
  if (getenv (VPPCOM_ENV_APP_SCOPE_GLOBAL))
    {
      vcm->cfg.app_scope_global = 1;
      VCFG_DBG (0, "VCL<%d>: configured app_scope_global (%u) from "
		VPPCOM_ENV_APP_SCOPE_GLOBAL "!", getpid (),
		vcm->cfg.app_scope_global);
    }
  env_var_str = getenv (VPPCOM_ENV_VPP_API_SOCKET);
  if (env_var_str)
    {
      vcm->cfg.vpp_bapi_socket_name = format (0, "%s%c", env_var_str, 0);
      VCFG_DBG (0, "VCL<%d>: configured api-socket-name (%s)", getpid (),
		vcl_cfg->vpp_bapi_socket_name);
    }
}

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */