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:
7 * http://www.apache.org/licenses/LICENSE-2.0
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.
16 #include <vnet/vnet.h>
17 #include <vlibmemory/api.h>
18 #include <vnet/session/application.h>
19 #include <vnet/session/application_interface.h>
24 * Server app parameters
26 svm_queue_t **vpp_queue;
27 svm_queue_t *vl_input_queue; /**< Sever's event queue */
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 */
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 */
47 u8 **rx_buf; /**< Per-thread RX buffer */
51 vlib_main_t *vlib_main;
52 } builtin_server_main_t;
54 builtin_server_main_t builtin_server_main;
57 builtin_session_accept_callback (stream_session_t * s)
59 builtin_server_main_t *bsm = &builtin_server_main;
61 bsm->vpp_queue[s->thread_index] =
62 session_manager_get_vpp_event_queue (s->thread_index);
63 s->session_state = SESSION_STATE_READY;
65 vec_validate (bsm->rx_retries[s->thread_index], s->session_index);
66 bsm->rx_retries[s->thread_index][s->session_index] = 0;
71 builtin_session_disconnect_callback (stream_session_t * s)
73 builtin_server_main_t *bsm = &builtin_server_main;
74 vnet_disconnect_args_t _a, *a = &_a;
76 a->handle = session_handle (s);
77 a->app_index = bsm->app_index;
78 vnet_disconnect_session (a);
82 builtin_session_reset_callback (stream_session_t * s)
84 clib_warning ("Reset session %U", format_stream_session, s, 2);
85 stream_session_cleanup (s);
90 builtin_session_connected_callback (u32 app_index, u32 api_context,
91 stream_session_t * s, u8 is_fail)
93 clib_warning ("called...");
98 builtin_add_segment_callback (u32 client_index, const ssvm_private_t * sp)
100 clib_warning ("called...");
105 builtin_redirect_connect_callback (u32 client_index, void *mp)
107 clib_warning ("called...");
112 test_bytes (builtin_server_main_t * bsm, int actual_transfer)
115 u32 my_thread_id = vlib_get_thread_index ();
117 for (i = 0; i < actual_transfer; i++)
119 if (bsm->rx_buf[my_thread_id][i] != ((bsm->byte_index + i) & 0xff))
121 clib_warning ("at %lld expected %d got %d", bsm->byte_index + i,
122 (bsm->byte_index + i) & 0xff,
123 bsm->rx_buf[my_thread_id][i]);
126 bsm->byte_index += actual_transfer;
130 * If no-echo, just read the data and be done with it
133 builtin_server_rx_callback_no_echo (stream_session_t * s)
135 builtin_server_main_t *bsm = &builtin_server_main;
136 u32 my_thread_id = vlib_get_thread_index ();
140 rx_fifo = s->server_rx_fifo;
145 svm_fifo_dequeue_nowait (rx_fifo, bsm->rcv_buffer_size,
146 bsm->rx_buf[my_thread_id]);
148 while (actual_transfer > 0);
153 builtin_server_rx_callback (stream_session_t * s)
155 u32 n_written, max_dequeue, max_enqueue, max_transfer;
157 svm_fifo_t *tx_fifo, *rx_fifo;
158 builtin_server_main_t *bsm = &builtin_server_main;
159 session_fifo_event_t evt;
160 u32 thread_index = vlib_get_thread_index ();
162 ASSERT (s->thread_index == thread_index);
164 rx_fifo = s->server_rx_fifo;
165 tx_fifo = s->server_tx_fifo;
167 ASSERT (rx_fifo->master_thread_index == thread_index);
168 ASSERT (tx_fifo->master_thread_index == thread_index);
170 max_dequeue = svm_fifo_max_dequeue (s->server_rx_fifo);
171 max_enqueue = svm_fifo_max_enqueue (s->server_tx_fifo);
173 if (PREDICT_FALSE (max_dequeue == 0))
176 /* Number of bytes we're going to copy */
177 max_transfer = (max_dequeue < max_enqueue) ? max_dequeue : max_enqueue;
179 /* No space in tx fifo */
180 if (PREDICT_FALSE (max_transfer == 0))
182 /* XXX timeout for session that are stuck */
185 /* Program self-tap to retry */
186 if (svm_fifo_set_event (rx_fifo))
190 evt.event_type = FIFO_EVENT_BUILTIN_RX;
192 q = bsm->vpp_queue[thread_index];
193 if (PREDICT_FALSE (q->cursize == q->maxsize))
194 clib_warning ("out of event queue space");
195 else if (svm_queue_add (q, (u8 *) & evt, 0))
196 clib_warning ("failed to enqueue self-tap");
198 if (bsm->rx_retries[thread_index][s->session_index] == 500000)
200 clib_warning ("session stuck: %U", format_stream_session, s, 2);
202 if (bsm->rx_retries[thread_index][s->session_index] < 500001)
203 bsm->rx_retries[thread_index][s->session_index]++;
209 _vec_len (bsm->rx_buf[thread_index]) = max_transfer;
211 actual_transfer = svm_fifo_dequeue_nowait (rx_fifo, max_transfer,
212 bsm->rx_buf[thread_index]);
213 ASSERT (actual_transfer == max_transfer);
215 // test_bytes (bsm, actual_transfer);
221 n_written = svm_fifo_enqueue_nowait (tx_fifo, actual_transfer,
222 bsm->rx_buf[thread_index]);
224 if (n_written != max_transfer)
225 clib_warning ("short trout!");
227 if (svm_fifo_set_event (tx_fifo))
229 /* Fabricate TX event, send to vpp */
231 evt.event_type = FIFO_EVENT_APP_TX;
233 if (svm_queue_add (bsm->vpp_queue[s->thread_index],
234 (u8 *) & evt, 0 /* do wait for mutex */ ))
235 clib_warning ("failed to enqueue tx evt");
238 if (PREDICT_FALSE (n_written < max_dequeue))
244 static session_cb_vft_t builtin_session_cb_vft = {
245 .session_accept_callback = builtin_session_accept_callback,
246 .session_disconnect_callback = builtin_session_disconnect_callback,
247 .session_connected_callback = builtin_session_connected_callback,
248 .add_segment_callback = builtin_add_segment_callback,
249 .redirect_connect_callback = builtin_redirect_connect_callback,
250 .builtin_server_rx_callback = builtin_server_rx_callback,
251 .session_reset_callback = builtin_session_reset_callback
254 /* Abuse VPP's input queue */
256 create_api_loopback (vlib_main_t * vm)
258 builtin_server_main_t *bsm = &builtin_server_main;
259 api_main_t *am = &api_main;
260 vl_shmem_hdr_t *shmem_hdr;
262 shmem_hdr = am->shmem_hdr;
263 bsm->vl_input_queue = shmem_hdr->vl_input_queue;
264 bsm->my_client_index =
265 vl_api_memclnt_create_internal ("tcp_test_server", bsm->vl_input_queue);
270 server_attach (u8 * appns_id, u64 appns_flags, u64 appns_secret)
272 builtin_server_main_t *bsm = &builtin_server_main;
273 u64 options[APP_OPTIONS_N_OPTIONS];
274 vnet_app_attach_args_t _a, *a = &_a;
275 u32 segment_size = 512 << 20;
277 memset (a, 0, sizeof (*a));
278 memset (options, 0, sizeof (options));
281 builtin_session_cb_vft.builtin_server_rx_callback =
282 builtin_server_rx_callback_no_echo;
284 builtin_session_cb_vft.builtin_server_rx_callback =
285 builtin_server_rx_callback;
287 if (bsm->private_segment_size)
288 segment_size = bsm->private_segment_size;
290 a->api_client_index = bsm->my_client_index;
291 a->session_cb_vft = &builtin_session_cb_vft;
292 a->options = options;
293 a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
294 a->options[APP_OPTIONS_RX_FIFO_SIZE] = bsm->fifo_size;
295 a->options[APP_OPTIONS_TX_FIFO_SIZE] = bsm->fifo_size;
296 a->options[APP_OPTIONS_PRIVATE_SEGMENT_COUNT] = bsm->private_segment_count;
297 a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] =
298 bsm->prealloc_fifos ? bsm->prealloc_fifos : 1;
300 a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
303 a->namespace_id = appns_id;
304 a->options[APP_OPTIONS_FLAGS] |= appns_flags;
305 a->options[APP_OPTIONS_NAMESPACE_SECRET] = appns_secret;
308 if (vnet_application_attach (a))
310 clib_warning ("failed to attach server");
313 bsm->app_index = a->app_index;
320 builtin_server_main_t *bsm = &builtin_server_main;
321 vnet_bind_args_t _a, *a = &_a;
322 memset (a, 0, sizeof (*a));
323 a->app_index = bsm->app_index;
324 a->uri = bsm->server_uri;
325 return vnet_bind_uri (a);
329 server_create (vlib_main_t * vm, u8 * appns_id, u64 appns_flags,
332 builtin_server_main_t *bsm = &builtin_server_main;
333 vlib_thread_main_t *vtm = vlib_get_thread_main ();
337 if (bsm->my_client_index == (u32) ~ 0)
339 if (create_api_loopback (vm))
341 clib_warning ("failed to create api loopback");
346 num_threads = 1 /* main thread */ + vtm->n_threads;
347 vec_validate (builtin_server_main.vpp_queue, num_threads - 1);
348 vec_validate (bsm->rx_buf, num_threads - 1);
349 vec_validate (bsm->rx_retries, num_threads - 1);
351 for (i = 0; i < num_threads; i++)
352 vec_validate (bsm->rx_buf[i], bsm->rcv_buffer_size);
354 if (server_attach (appns_id, appns_flags, appns_secret))
356 clib_warning ("failed to attach server");
359 if (server_listen ())
361 clib_warning ("failed to start listening");
367 static clib_error_t *
368 server_create_command_fn (vlib_main_t * vm, unformat_input_t * input,
369 vlib_cli_command_t * cmd)
371 builtin_server_main_t *bsm = &builtin_server_main;
372 u8 server_uri_set = 0, *appns_id = 0;
373 u64 tmp, appns_flags = 0, appns_secret = 0;
377 bsm->fifo_size = 64 << 10;
378 bsm->rcv_buffer_size = 128 << 10;
379 bsm->prealloc_fifos = 0;
380 bsm->private_segment_count = 0;
381 bsm->private_segment_size = 0;
382 vec_free (bsm->server_uri);
384 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
386 if (unformat (input, "no-echo"))
388 else if (unformat (input, "fifo-size %d", &bsm->fifo_size))
389 bsm->fifo_size <<= 10;
390 else if (unformat (input, "rcv-buf-size %d", &bsm->rcv_buffer_size))
392 else if (unformat (input, "prealloc-fifos %d", &bsm->prealloc_fifos))
394 else if (unformat (input, "private-segment-count %d",
395 &bsm->private_segment_count))
397 else if (unformat (input, "private-segment-size %U",
398 unformat_memory_size, &tmp))
400 if (tmp >= 0x100000000ULL)
401 return clib_error_return
402 (0, "private segment size %lld (%llu) too large", tmp, tmp);
403 bsm->private_segment_size = tmp;
405 else if (unformat (input, "uri %s", &bsm->server_uri))
407 else if (unformat (input, "appns %_%v%_", &appns_id))
409 else if (unformat (input, "all-scope"))
410 appns_flags |= (APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE
411 | APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE);
412 else if (unformat (input, "local-scope"))
413 appns_flags |= APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE;
414 else if (unformat (input, "global-scope"))
415 appns_flags |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
416 else if (unformat (input, "secret %lu", &appns_secret))
419 return clib_error_return (0, "unknown input `%U'",
420 format_unformat_error, input);
423 vnet_session_enable_disable (vm, 1 /* turn on TCP, etc. */ );
426 bsm->server_uri = (char *) format (0, "tcp://0.0.0.0/1234%c", 0);
428 rv = server_create (vm, appns_id, appns_flags, appns_secret);
435 return clib_error_return (0, "server_create returned %d", rv);
442 VLIB_CLI_COMMAND (server_create_command, static) =
444 .path = "test tcp server",
445 .short_help = "test tcp server [no echo][fifo-size <mbytes>] "
446 "[rcv-buf-size <bytes>][prealloc-fifos <count>]"
447 "[private-segment-count <count>][private-segment-size <bytes[m|g]>]"
448 "[uri <tcp://ip/port>]",
449 .function = server_create_command_fn,
454 builtin_tcp_server_main_init (vlib_main_t * vm)
456 builtin_server_main_t *bsm = &builtin_server_main;
457 bsm->my_client_index = ~0;
461 VLIB_INIT_FUNCTION (builtin_tcp_server_main_init);
464 * fd.io coding-style-patch-verification: ON
467 * eval: (c-set-style "gnu")