FD.io VPP  v19.01.2-3-gf61a1a8
Vector Packet Processing
echo_server.c
Go to the documentation of this file.
1 /*
2 * Copyright (c) 2015-2017 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15 
16 #include <vnet/vnet.h>
17 #include <vlibmemory/api.h>
20 
21 typedef struct
22 {
23  /*
24  * Server app parameters
25  */
27  svm_queue_t *vl_input_queue; /**< Sever's event queue */
28 
29  u32 app_index; /**< Server app index */
30  u32 my_client_index; /**< API client handle */
31  u32 node_index; /**< process node index for evnt scheduling */
32 
33  /*
34  * Config params
35  */
36  u8 no_echo; /**< Don't echo traffic */
37  u32 fifo_size; /**< Fifo size */
38  u32 rcv_buffer_size; /**< Rcv buffer size */
39  u32 prealloc_fifos; /**< Preallocate fifos */
40  u32 private_segment_count; /**< Number of private segments */
41  u32 private_segment_size; /**< Size of private segments */
42  char *server_uri; /**< Server URI */
43  u32 tls_engine; /**< TLS engine: mbedtls/openssl */
44  u8 is_dgram; /**< set if transport is dgram */
45  /*
46  * Test state
47  */
48  u8 **rx_buf; /**< Per-thread RX buffer */
51 
54 
56 
57 int
59 {
61 
62  esm->vpp_queue[s->thread_index] =
63  session_manager_get_vpp_event_queue (s->thread_index);
64  s->session_state = SESSION_STATE_READY;
65  esm->byte_index = 0;
66  ASSERT (vec_len (esm->rx_retries) > s->thread_index);
67  vec_validate (esm->rx_retries[s->thread_index], s->session_index);
68  esm->rx_retries[s->thread_index][s->session_index] = 0;
69  return 0;
70 }
71 
72 void
74 {
76  vnet_disconnect_args_t _a = { 0 }, *a = &_a;
77 
78  a->handle = session_handle (s);
79  a->app_index = esm->app_index;
81 }
82 
83 void
85 {
87  vnet_disconnect_args_t _a = { 0 }, *a = &_a;
88  clib_warning ("Reset session %U", format_stream_session, s, 2);
89  a->handle = session_handle (s);
90  a->app_index = esm->app_index;
92 }
93 
94 int
96  stream_session_t * s, u8 is_fail)
97 {
98  clib_warning ("called...");
99  return -1;
100 }
101 
102 int
103 echo_server_add_segment_callback (u32 client_index, u64 segment_handle)
104 {
105  /* New heaps may be added */
106  return 0;
107 }
108 
109 int
111 {
112  clib_warning ("called...");
113  return -1;
114 }
115 
116 void
117 test_bytes (echo_server_main_t * esm, int actual_transfer)
118 {
119  int i;
120  u32 my_thread_id = vlib_get_thread_index ();
121 
122  for (i = 0; i < actual_transfer; i++)
123  {
124  if (esm->rx_buf[my_thread_id][i] != ((esm->byte_index + i) & 0xff))
125  {
126  clib_warning ("at %lld expected %d got %d", esm->byte_index + i,
127  (esm->byte_index + i) & 0xff,
128  esm->rx_buf[my_thread_id][i]);
129  }
130  }
131  esm->byte_index += actual_transfer;
132 }
133 
134 /*
135  * If no-echo, just drop the data and be done with it.
136  */
137 int
139 {
140  svm_fifo_t *rx_fifo = s->server_rx_fifo;
141  svm_fifo_dequeue_drop (rx_fifo, svm_fifo_max_dequeue (rx_fifo));
142  return 0;
143 }
144 
145 int
147 {
148  u32 n_written, max_dequeue, max_enqueue, max_transfer;
149  int actual_transfer;
150  svm_fifo_t *tx_fifo, *rx_fifo;
152  u32 thread_index = vlib_get_thread_index ();
154 
155  ASSERT (s->thread_index == thread_index);
156 
157  rx_fifo = s->server_rx_fifo;
158  tx_fifo = s->server_tx_fifo;
159 
160  ASSERT (rx_fifo->master_thread_index == thread_index);
161  ASSERT (tx_fifo->master_thread_index == thread_index);
162 
163  max_enqueue = svm_fifo_max_enqueue (tx_fifo);
164  if (!esm->is_dgram)
165  {
166  max_dequeue = svm_fifo_max_dequeue (rx_fifo);
167  }
168  else
169  {
171  svm_fifo_peek (rx_fifo, 0, sizeof (ph), (u8 *) & ph);
172  max_dequeue = ph.data_length - ph.data_offset;
173  if (!esm->vpp_queue[s->thread_index])
174  {
175  svm_msg_q_t *mq;
176  mq = session_manager_get_vpp_event_queue (s->thread_index);
177  esm->vpp_queue[s->thread_index] = mq;
178  }
179  max_enqueue -= sizeof (session_dgram_hdr_t);
180  }
181 
182  if (PREDICT_FALSE (max_dequeue == 0))
183  return 0;
184 
185  /* Number of bytes we're going to copy */
186  max_transfer = clib_min (max_dequeue, max_enqueue);
187 
188  /* No space in tx fifo */
189  if (PREDICT_FALSE (max_transfer == 0))
190  {
191  /* XXX timeout for session that are stuck */
192 
193  rx_event:
194  /* Program self-tap to retry */
195  if (svm_fifo_set_event (rx_fifo))
196  {
198  clib_warning ("failed to enqueue self-tap");
199 
200  vec_validate (esm->rx_retries[s->thread_index], s->session_index);
201  if (esm->rx_retries[thread_index][s->session_index] == 500000)
202  {
203  clib_warning ("session stuck: %U", format_stream_session, s, 2);
204  }
205  if (esm->rx_retries[thread_index][s->session_index] < 500001)
206  esm->rx_retries[thread_index][s->session_index]++;
207  }
208 
209  return 0;
210  }
211 
212  vec_validate (esm->rx_buf[thread_index], max_transfer);
213  if (!esm->is_dgram)
214  {
215  actual_transfer = app_recv_stream_raw (rx_fifo,
216  esm->rx_buf[thread_index],
217  max_transfer,
218  0 /* don't clear event */ ,
219  0 /* peek */ );
220  }
221  else
222  {
223  actual_transfer = app_recv_dgram_raw (rx_fifo,
224  esm->rx_buf[thread_index],
225  max_transfer, &at,
226  0 /* don't clear event */ ,
227  0 /* peek */ );
228  }
229  ASSERT (actual_transfer == max_transfer);
230  /* test_bytes (esm, actual_transfer); */
231 
232  /*
233  * Echo back
234  */
235 
236  if (!esm->is_dgram)
237  {
238  n_written = app_send_stream_raw (tx_fifo,
239  esm->vpp_queue[thread_index],
240  esm->rx_buf[thread_index],
241  actual_transfer, FIFO_EVENT_APP_TX, 0);
242  }
243  else
244  {
245  n_written = app_send_dgram_raw (tx_fifo, &at,
246  esm->vpp_queue[s->thread_index],
247  esm->rx_buf[thread_index],
248  actual_transfer, FIFO_EVENT_APP_TX, 0);
249  }
250 
251  if (n_written != max_transfer)
252  clib_warning ("short trout! written %u read %u", n_written, max_transfer);
253 
254  if (PREDICT_FALSE (svm_fifo_max_dequeue (rx_fifo)))
255  goto rx_event;
256 
257  return 0;
258 }
259 
261  .session_accept_callback = echo_server_session_accept_callback,
262  .session_disconnect_callback = echo_server_session_disconnect_callback,
263  .session_connected_callback = echo_server_session_connected_callback,
264  .add_segment_callback = echo_server_add_segment_callback,
265  .builtin_app_rx_callback = echo_server_rx_callback,
266  .session_reset_callback = echo_server_session_reset_callback
267 };
268 
269 /* Abuse VPP's input queue */
270 static int
272 {
274  api_main_t *am = &api_main;
275  vl_shmem_hdr_t *shmem_hdr;
276 
277  shmem_hdr = am->shmem_hdr;
278  esm->vl_input_queue = shmem_hdr->vl_input_queue;
279  esm->my_client_index = vl_api_memclnt_create_internal ("echo_server",
280  esm->vl_input_queue);
281  return 0;
282 }
283 
284 static int
285 echo_server_attach (u8 * appns_id, u64 appns_flags, u64 appns_secret)
286 {
287  vnet_app_add_tls_cert_args_t _a_cert, *a_cert = &_a_cert;
288  vnet_app_add_tls_key_args_t _a_key, *a_key = &_a_key;
290  vnet_app_attach_args_t _a, *a = &_a;
291  u64 options[APP_OPTIONS_N_OPTIONS];
292  u32 segment_size = 512 << 20;
293 
294  clib_memset (a, 0, sizeof (*a));
295  clib_memset (options, 0, sizeof (options));
296 
297  if (esm->no_echo)
298  echo_server_session_cb_vft.builtin_app_rx_callback =
300  else
301  echo_server_session_cb_vft.builtin_app_rx_callback =
303 
304  if (esm->private_segment_size)
305  segment_size = esm->private_segment_size;
306 
307  a->api_client_index = esm->my_client_index;
308  a->session_cb_vft = &echo_server_session_cb_vft;
309  a->options = options;
310  a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
311  a->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = segment_size;
312  a->options[APP_OPTIONS_RX_FIFO_SIZE] = esm->fifo_size;
313  a->options[APP_OPTIONS_TX_FIFO_SIZE] = esm->fifo_size;
315  a->options[APP_OPTIONS_TLS_ENGINE] = esm->tls_engine;
316  a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] =
317  esm->prealloc_fifos ? esm->prealloc_fifos : 1;
318 
319  a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
320  if (appns_id)
321  {
322  a->namespace_id = appns_id;
323  a->options[APP_OPTIONS_FLAGS] |= appns_flags;
324  a->options[APP_OPTIONS_NAMESPACE_SECRET] = appns_secret;
325  }
326 
327  if (vnet_application_attach (a))
328  {
329  clib_warning ("failed to attach server");
330  return -1;
331  }
332  esm->app_index = a->app_index;
333 
334  clib_memset (a_cert, 0, sizeof (*a_cert));
335  a_cert->app_index = a->app_index;
336  vec_validate (a_cert->cert, test_srv_crt_rsa_len);
338  vnet_app_add_tls_cert (a_cert);
339 
340  clib_memset (a_key, 0, sizeof (*a_key));
341  a_key->app_index = a->app_index;
342  vec_validate (a_key->key, test_srv_key_rsa_len);
344  vnet_app_add_tls_key (a_key);
345  return 0;
346 }
347 
348 static int
350 {
352  vnet_app_detach_args_t _da, *da = &_da;
353  int rv;
354 
355  da->app_index = esm->app_index;
356  rv = vnet_application_detach (da);
357  esm->app_index = ~0;
358  return rv;
359 }
360 
361 static int
363 {
365  vnet_bind_args_t _a, *a = &_a;
366  clib_memset (a, 0, sizeof (*a));
367  a->app_index = esm->app_index;
368  a->uri = esm->server_uri;
369  return vnet_bind_uri (a);
370 }
371 
372 static int
373 echo_server_create (vlib_main_t * vm, u8 * appns_id, u64 appns_flags,
374  u64 appns_secret)
375 {
378  u32 num_threads;
379  int i;
380 
381  if (esm->my_client_index == (u32) ~ 0)
382  {
383  if (create_api_loopback (vm))
384  {
385  clib_warning ("failed to create api loopback");
386  return -1;
387  }
388  }
389 
390  num_threads = 1 /* main thread */ + vtm->n_threads;
391  vec_validate (echo_server_main.vpp_queue, num_threads - 1);
392  vec_validate (esm->rx_buf, num_threads - 1);
393  vec_validate (esm->rx_retries, num_threads - 1);
394  for (i = 0; i < vec_len (esm->rx_retries); i++)
395  vec_validate (esm->rx_retries[i],
398  for (i = 0; i < num_threads; i++)
399  vec_validate (esm->rx_buf[i], esm->rcv_buffer_size);
400 
401  if (echo_server_attach (appns_id, appns_flags, appns_secret))
402  {
403  clib_warning ("failed to attach server");
404  return -1;
405  }
406  if (echo_server_listen ())
407  {
408  clib_warning ("failed to start listening");
409  if (echo_server_detach ())
410  clib_warning ("failed to detach");
411  return -1;
412  }
413  return 0;
414 }
415 
416 static clib_error_t *
418  vlib_cli_command_t * cmd)
419 {
421  u8 server_uri_set = 0, *appns_id = 0;
422  u64 tmp, appns_flags = 0, appns_secret = 0;
423  char *default_uri = "tcp://0.0.0.0/1234";
424  int rv, is_stop = 0;
425 
426  esm->no_echo = 0;
427  esm->fifo_size = 64 << 10;
428  esm->rcv_buffer_size = 128 << 10;
429  esm->prealloc_fifos = 0;
430  esm->private_segment_count = 0;
431  esm->private_segment_size = 0;
433  esm->is_dgram = 0;
434  vec_free (esm->server_uri);
435 
437  {
438  if (unformat (input, "uri %s", &esm->server_uri))
439  server_uri_set = 1;
440  else if (unformat (input, "no-echo"))
441  esm->no_echo = 1;
442  else if (unformat (input, "fifo-size %d", &esm->fifo_size))
443  esm->fifo_size <<= 10;
444  else if (unformat (input, "rcv-buf-size %d", &esm->rcv_buffer_size))
445  ;
446  else if (unformat (input, "prealloc-fifos %d", &esm->prealloc_fifos))
447  ;
448  else if (unformat (input, "private-segment-count %d",
449  &esm->private_segment_count))
450  ;
451  else if (unformat (input, "private-segment-size %U",
452  unformat_memory_size, &tmp))
453  {
454  if (tmp >= 0x100000000ULL)
455  return clib_error_return
456  (0, "private segment size %lld (%llu) too large", tmp, tmp);
457  esm->private_segment_size = tmp;
458  }
459  else if (unformat (input, "appns %_%v%_", &appns_id))
460  ;
461  else if (unformat (input, "all-scope"))
462  appns_flags |= (APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE
463  | APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE);
464  else if (unformat (input, "local-scope"))
465  appns_flags |= APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE;
466  else if (unformat (input, "global-scope"))
467  appns_flags |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
468  else if (unformat (input, "secret %lu", &appns_secret))
469  ;
470  else if (unformat (input, "stop"))
471  is_stop = 1;
472  else if (unformat (input, "tls-engine %d", &esm->tls_engine))
473  ;
474  else
475  return clib_error_return (0, "failed: unknown input `%U'",
476  format_unformat_error, input);
477  }
478 
479  if (is_stop)
480  {
481  if (esm->app_index == (u32) ~ 0)
482  {
483  clib_warning ("server not running");
484  return clib_error_return (0, "failed: server not running");
485  }
486  rv = echo_server_detach ();
487  if (rv)
488  {
489  clib_warning ("failed: detach");
490  return clib_error_return (0, "failed: server detach %d", rv);
491  }
492  return 0;
493  }
494 
495  vnet_session_enable_disable (vm, 1 /* turn on TCP, etc. */ );
496 
497  if (!server_uri_set)
498  {
499  clib_warning ("No uri provided! Using default: %s", default_uri);
500  esm->server_uri = (char *) format (0, "%s%c", default_uri, 0);
501  }
502  if (esm->server_uri[0] == 'u' && esm->server_uri[3] != 'c')
503  esm->is_dgram = 1;
504 
505  rv = echo_server_create (vm, appns_id, appns_flags, appns_secret);
506  vec_free (appns_id);
507  if (rv)
508  {
509  vec_free (esm->server_uri);
510  return clib_error_return (0, "failed: server_create returned %d", rv);
511  }
512 
513  return 0;
514 }
515 
516 /* *INDENT-OFF* */
517 VLIB_CLI_COMMAND (echo_server_create_command, static) =
518 {
519  .path = "test echo server",
520  .short_help = "test echo server proto <proto> [no echo][fifo-size <mbytes>]"
521  "[rcv-buf-size <bytes>][prealloc-fifos <count>]"
522  "[private-segment-count <count>][private-segment-size <bytes[m|g]>]"
523  "[uri <tcp://ip/port>]",
524  .function = echo_server_create_command_fn,
525 };
526 /* *INDENT-ON* */
527 
528 clib_error_t *
530 {
532  esm->my_client_index = ~0;
533  return 0;
534 }
535 
537 
538 /*
539 * fd.io coding-style-patch-verification: ON
540 *
541 * Local Variables:
542 * eval: (c-set-style "gnu")
543 * End:
544 */
static int echo_server_listen()
Definition: echo_server.c:362
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:439
static int app_recv_stream_raw(svm_fifo_t *f, u8 *buf, u32 len, u8 clear_evt, u8 peek)
#define clib_min(x, y)
Definition: clib.h:295
int echo_server_rx_callback(stream_session_t *s)
Definition: echo_server.c:146
u32 vl_api_memclnt_create_internal(char *name, svm_queue_t *q)
Definition: memory_api.c:120
a
Definition: bitmap.h:538
const u32 test_srv_crt_rsa_len
void echo_server_session_reset_callback(stream_session_t *s)
Definition: echo_server.c:84
int vnet_bind_uri(vnet_bind_args_t *a)
const u32 test_srv_key_rsa_len
u8 no_echo
Don&#39;t echo traffic.
Definition: echo_server.c:36
unsigned long u64
Definition: types.h:89
#define clib_memcpy_fast(a, b, c)
Definition: string.h:81
session_manager_main_t session_manager_main
Definition: session.c:27
u32 fifo_size
Fifo size.
Definition: echo_server.c:37
u32 private_segment_size
Size of private segments.
Definition: echo_server.c:41
static int echo_server_detach(void)
Definition: echo_server.c:349
int i
clib_memset(h->entries, 0, sizeof(h->entries[0])*entries)
static u32 svm_fifo_max_enqueue(svm_fifo_t *f)
Definition: svm_fifo.h:142
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:419
struct _vnet_application_add_tls_cert_args_t vnet_app_add_tls_cert_args_t
int echo_server_session_connected_callback(u32 app_index, u32 api_context, stream_session_t *s, u8 is_fail)
Definition: echo_server.c:95
u32 tls_engine
TLS engine: mbedtls/openssl.
Definition: echo_server.c:43
clib_error_t * vnet_app_add_tls_cert(vnet_app_add_tls_cert_args_t *a)
Definition: application.c:1976
unsigned char u8
Definition: types.h:56
u32 my_client_index
API client handle.
Definition: echo_server.c:30
struct _svm_fifo svm_fifo_t
int echo_server_builtin_server_rx_callback_no_echo(stream_session_t *s)
Definition: echo_server.c:138
svm_msg_q_t ** vpp_queue
Definition: echo_server.c:26
static svm_msg_q_t * session_manager_get_vpp_event_queue(u32 thread_index)
Definition: session.h:656
u32 prealloc_fifos
Preallocate fifos.
Definition: echo_server.c:39
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:163
struct _vnet_disconnect_args_t vnet_disconnect_args_t
svm_queue_t * vl_input_queue
Sever&#39;s event queue.
Definition: echo_server.c:27
static u32 svm_fifo_max_dequeue(svm_fifo_t *f)
Definition: svm_fifo.h:124
struct _stream_session_cb_vft session_cb_vft_t
#define clib_error_return(e, args...)
Definition: error.h:99
static int app_send_stream_raw(svm_fifo_t *f, svm_msg_q_t *vpp_evt_q, u8 *data, u32 len, u8 evt_type, u8 noblock)
struct vl_shmem_hdr_ * shmem_hdr
Binary API shared-memory segment header pointer.
Definition: api_common.h:265
unsigned int u32
Definition: types.h:88
struct _stream_session_t stream_session_t
int session_send_io_evt_to_thread(svm_fifo_t *f, session_evt_type_t evt_type)
Definition: session.c:88
static int echo_server_attach(u8 *appns_id, u64 appns_flags, u64 appns_secret)
Definition: echo_server.c:285
echo_server_main_t echo_server_main
Definition: echo_server.c:55
static int app_recv_dgram_raw(svm_fifo_t *f, u8 *buf, u32 len, app_session_transport_t *at, u8 clear_evt, u8 peek)
stream_session_t * sessions
Worker session pool.
Definition: session.h:184
struct _vnet_app_attach_args_t vnet_app_attach_args_t
clib_error_t * vnet_app_add_tls_key(vnet_app_add_tls_key_args_t *a)
Definition: application.c:1988
struct _unformat_input_t unformat_input_t
static session_handle_t session_handle(stream_session_t *s)
Definition: session.h:364
#define PREDICT_FALSE(x)
Definition: clib.h:111
const char test_srv_crt_rsa[]
clib_error_t * vnet_session_enable_disable(vlib_main_t *vm, u8 is_en)
Definition: session.c:1529
static clib_error_t * echo_server_create_command_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: echo_server.c:417
u32 app_index
Server app index.
Definition: echo_server.c:29
API main structure, used by both vpp and binary API clients.
Definition: api_common.h:202
void test_bytes(echo_server_main_t *esm, int actual_transfer)
Definition: echo_server.c:117
void echo_server_session_disconnect_callback(stream_session_t *s)
Definition: echo_server.c:73
static u8 svm_fifo_set_event(svm_fifo_t *f)
Sets fifo event flag.
Definition: svm_fifo.h:167
#define UNFORMAT_END_OF_INPUT
Definition: format.h:144
static_always_inline uword vlib_get_thread_index(void)
Definition: threads.h:212
clib_error_t * echo_server_main_init(vlib_main_t *vm)
Definition: echo_server.c:529
vlib_main_t * vm
Definition: buffer.c:301
static int create_api_loopback(vlib_main_t *vm)
Definition: echo_server.c:271
u8 * format_stream_session(u8 *s, va_list *args)
Format stream session as per the following format.
Definition: session_cli.c:57
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:341
static int app_send_dgram_raw(svm_fifo_t *f, app_session_transport_t *at, svm_msg_q_t *vpp_evt_q, u8 *data, u32 len, u8 evt_type, u8 noblock)
#define clib_warning(format, args...)
Definition: error.h:59
int echo_server_session_accept_callback(stream_session_t *s)
Definition: echo_server.c:58
int vnet_disconnect_session(vnet_disconnect_args_t *a)
u32 node_index
process node index for evnt scheduling
Definition: echo_server.c:31
svm_queue_t * vl_input_queue
Definition: memory_shared.h:84
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:155
#define ASSERT(truth)
int echo_server_redirect_connect_callback(u32 client_index, void *mp)
Definition: echo_server.c:110
struct _vnet_application_add_tls_key_args_t vnet_app_add_tls_key_args_t
struct _vnet_app_detach_args_t vnet_app_detach_args_t
#define clib_max(x, y)
Definition: clib.h:288
int svm_fifo_dequeue_drop(svm_fifo_t *f, u32 max_bytes)
Definition: svm_fifo.c:734
int echo_server_add_segment_callback(u32 client_index, u64 segment_handle)
Definition: echo_server.c:103
session_manager_worker_t * wrk
Worker contexts.
Definition: session.h:240
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
clib_error_t * vnet_application_attach(vnet_app_attach_args_t *a)
Attach application to vpp.
u8 ** rx_buf
Per-thread RX buffer.
Definition: echo_server.c:48
char * server_uri
Server URI.
Definition: echo_server.c:42
u32 private_segment_count
Number of private segments.
Definition: echo_server.c:40
struct _svm_queue svm_queue_t
unformat_function_t unformat_memory_size
Definition: format.h:295
u8 is_dgram
set if transport is dgram
Definition: echo_server.c:44
u8 * format_unformat_error(u8 *s, va_list *va)
Definition: unformat.c:91
static vlib_thread_main_t * vlib_get_thread_main()
Definition: global_funcs.h:32
u32 rcv_buffer_size
Rcv buffer size.
Definition: echo_server.c:38
static int echo_server_create(vlib_main_t *vm, u8 *appns_id, u64 appns_flags, u64 appns_secret)
Definition: echo_server.c:373
int svm_fifo_peek(svm_fifo_t *f, u32 relative_offset, u32 max_bytes, u8 *copy_here)
Definition: svm_fifo.c:726
api_main_t api_main
Definition: api_shared.c:35
int vnet_application_detach(vnet_app_detach_args_t *a)
Detach application from vpp.
struct _vnet_bind_args_t vnet_bind_args_t
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:972
static session_cb_vft_t echo_server_session_cb_vft
Definition: echo_server.c:260
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:170
const char test_srv_key_rsa[]
vlib_main_t * vlib_main
Definition: echo_server.c:52
static uword pool_elts(void *v)
Number of active elements in a pool.
Definition: pool.h:128