Line data Source code
1 : /*
2 : * Copyright (c) 2019 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 <stdio.h>
17 : #include <signal.h>
18 :
19 : #include <vlibmemory/api.h>
20 : #include <svm/fifo_segment.h>
21 :
22 : #include <hs_apps/sapi/vpp_echo_common.h>
23 :
24 : echo_main_t echo_main;
25 :
26 : static void
27 4 : echo_session_prealloc (echo_main_t * em)
28 : {
29 : /* We need to prealloc to avoid vec resize in threads */
30 : echo_session_t *session;
31 : int i;
32 16 : for (i = 0; i < em->n_sessions; i++)
33 : {
34 12 : pool_get (em->sessions, session);
35 12 : clib_memset (session, 0, sizeof (*session));
36 12 : session->session_index = session - em->sessions;
37 12 : session->listener_index = SESSION_INVALID_INDEX;
38 12 : session->session_state = ECHO_SESSION_STATE_INITIAL;
39 : }
40 4 : }
41 :
42 : static void
43 4 : echo_assert_test_suceeded (echo_main_t * em)
44 : {
45 4 : if (em->rx_results_diff)
46 0 : CHECK_DIFF (ECHO_FAIL_TEST_ASSERT_RX_TOTAL, em->stats.rx_expected,
47 : em->stats.rx_total, "Invalid amount of data received");
48 : else
49 4 : CHECK_SAME (ECHO_FAIL_TEST_ASSERT_RX_TOTAL, em->stats.rx_expected,
50 : em->stats.rx_total, "Invalid amount of data received");
51 :
52 4 : if (em->tx_results_diff)
53 0 : CHECK_DIFF (ECHO_FAIL_TEST_ASSERT_TX_TOTAL, em->stats.tx_expected,
54 : em->stats.tx_total, "Invalid amount of data sent");
55 : else
56 4 : CHECK_SAME (ECHO_FAIL_TEST_ASSERT_TX_TOTAL, em->stats.tx_expected,
57 : em->stats.tx_total, "Invalid amount of data sent");
58 :
59 4 : clib_spinlock_lock (&em->sid_vpp_handles_lock);
60 4 : CHECK_SAME (ECHO_FAIL_TEST_ASSERT_ALL_SESSIONS_CLOSED,
61 : 0, hash_elts (em->session_index_by_vpp_handles),
62 : "Some sessions are still open");
63 4 : clib_spinlock_unlock (&em->sid_vpp_handles_lock);
64 4 : }
65 :
66 : always_inline void
67 1714 : echo_session_dequeue_notify (echo_session_t * s)
68 : {
69 : int rv;
70 1714 : if (!svm_fifo_set_event (s->rx_fifo))
71 1135 : return;
72 579 : if ((rv = app_send_io_evt_to_vpp (s->vpp_evt_q,
73 579 : s->rx_fifo->shr->master_session_index,
74 : SESSION_IO_EVT_RX, SVM_Q_WAIT)))
75 0 : ECHO_FAIL (ECHO_FAIL_SEND_IO_EVT, "app_send_io_evt_to_vpp errored %d",
76 : rv);
77 579 : svm_fifo_clear_deq_ntf (s->rx_fifo);
78 : }
79 :
80 : static void
81 0 : stop_signal (int signum)
82 : {
83 0 : echo_main_t *em = &echo_main;
84 0 : em->time_to_stop = 1;
85 0 : }
86 :
87 : static int
88 4 : connect_to_vpp (echo_main_t *em)
89 : {
90 4 : api_main_t *am = vlibapi_get_main ();
91 :
92 4 : if (em->use_app_socket_api)
93 4 : return echo_api_connect_app_socket (em);
94 :
95 0 : if (em->use_sock_api)
96 : {
97 0 : if (vl_socket_client_connect ((char *) em->socket_name,
98 0 : (char *) em->app_name,
99 : 0 /* default rx, tx buffer */))
100 : {
101 0 : ECHO_FAIL (ECHO_FAIL_SOCKET_CONNECT, "socket connect failed");
102 0 : return -1;
103 : }
104 :
105 0 : if (vl_socket_client_init_shm (0, 1 /* want_pthread */ ))
106 : {
107 0 : ECHO_FAIL (ECHO_FAIL_INIT_SHM_API, "init shm api failed");
108 0 : return -1;
109 : }
110 : }
111 : else
112 : {
113 0 : if (vl_client_connect_to_vlib ("/vpe-api", (char *) em->app_name, 32) <
114 : 0)
115 : {
116 0 : ECHO_FAIL (ECHO_FAIL_SHMEM_CONNECT, "shmem connect failed");
117 0 : return -1;
118 : }
119 : }
120 0 : em->vl_input_queue = am->shmem_hdr->vl_input_queue;
121 0 : em->my_client_index = am->my_client_index;
122 0 : return 0;
123 : }
124 :
125 : static void
126 4 : print_global_json_stats (echo_main_t * em)
127 : {
128 4 : u8 *start_evt =
129 4 : format (0, "%U", echo_format_timing_event, em->timing.start_event);
130 4 : u8 *end_evt =
131 4 : format (0, "%U", echo_format_timing_event, em->timing.end_event);
132 4 : u8 start_evt_missing = !(em->timing.events_sent & em->timing.start_event);
133 8 : u8 end_evt_missing = (em->rx_results_diff || em->tx_results_diff) ? 0 :
134 4 : !(em->timing.events_sent & em->timing.end_event);
135 4 : f64 deltat = start_evt_missing || end_evt_missing ? 0 :
136 4 : em->timing.end_time - em->timing.start_time;
137 :
138 4 : if (start_evt_missing)
139 0 : ECHO_FAIL (ECHO_FAIL_MISSING_START_EVENT,
140 : "Expected event %v to happen, but it did not!", start_evt);
141 :
142 4 : if (end_evt_missing)
143 0 : ECHO_FAIL (ECHO_FAIL_MISSING_END_EVENT,
144 : "Expected event %v to happen, but it did not!", end_evt);
145 :
146 4 : fformat (stdout, "vpp_echo JSON stats:\n{\n");
147 4 : fformat (stdout, " \"role\": \"%s\",\n",
148 4 : em->i_am_master ? "server" : "client");
149 4 : fformat (stdout, " \"time\": \"%.9f\",\n", deltat);
150 4 : fformat (stdout, " \"start_evt\": \"%v\",\n", start_evt);
151 4 : fformat (stdout, " \"start_evt_missing\": \"%s\",\n",
152 : start_evt_missing ? "True" : "False");
153 4 : fformat (stdout, " \"end_evt\": \"%v\",\n", end_evt);
154 4 : fformat (stdout, " \"end_evt_missing\": \"%s\",\n",
155 : end_evt_missing ? "True" : "False");
156 4 : fformat (stdout, " \"rx_data\": %lld,\n", em->stats.rx_total);
157 4 : fformat (stdout, " \"tx_data\": %lld,\n", em->stats.tx_total);
158 4 : fformat (stdout, " \"rx_bits_per_second\": %.1f,\n",
159 4 : em->stats.rx_total * 8 / deltat);
160 4 : fformat (stdout, " \"tx_bits_per_second\": %.1f,\n",
161 4 : em->stats.tx_total * 8 / deltat);
162 4 : fformat (stdout, " \"closing\": {\n");
163 4 : fformat (stdout, " \"reset\": { \"q\": %d, \"s\": %d },\n",
164 : em->stats.reset_count.q, em->stats.reset_count.s);
165 4 : fformat (stdout, " \"recv evt\": { \"q\": %d, \"s\": %d },\n",
166 : em->stats.close_count.q, em->stats.close_count.s);
167 4 : fformat (stdout, " \"send evt\": { \"q\": %d, \"s\": %d },\n",
168 : em->stats.active_count.q, em->stats.active_count.s);
169 4 : fformat (stdout, " \"clean\": { \"q\": %d, \"s\": %d },\n",
170 : em->stats.clean_count.q, em->stats.clean_count.s);
171 4 : fformat (stdout, " \"accepted\": { \"q\": %d, \"s\": %d },\n",
172 : em->stats.accepted_count.q, em->stats.accepted_count.s);
173 4 : fformat (stdout, " \"connected\": { \"q\": %d, \"s\": %d }\n",
174 : em->stats.connected_count.q, em->stats.connected_count.s);
175 4 : fformat (stdout, " },\n");
176 4 : fformat (stdout, " \"results\": {\n");
177 4 : fformat (stdout, " \"has_failed\": \"%d\",\n", em->has_failed);
178 4 : fformat (stdout, " \"fail_descr\": \"%v\"\n", em->fail_descr);
179 4 : fformat (stdout, " }\n");
180 4 : fformat (stdout, "}\n");
181 4 : fflush (stdout);
182 4 : vec_free (start_evt);
183 4 : vec_free (end_evt);
184 4 : }
185 :
186 : static void
187 0 : print_global_stats (echo_main_t * em)
188 : {
189 0 : u8 *start_evt =
190 0 : format (0, "%U", echo_format_timing_event, em->timing.start_event);
191 0 : u8 *end_evt =
192 0 : format (0, "%U", echo_format_timing_event, em->timing.end_event);
193 0 : u8 start_evt_missing = !(em->timing.events_sent & em->timing.start_event);
194 0 : u8 end_evt_missing = (em->rx_results_diff || em->tx_results_diff) ? 0 :
195 0 : !(em->timing.events_sent & em->timing.end_event);
196 0 : f64 deltat = start_evt_missing || end_evt_missing ? 0 :
197 0 : em->timing.end_time - em->timing.start_time;
198 :
199 0 : if (start_evt_missing)
200 0 : ECHO_FAIL (ECHO_FAIL_MISSING_START_EVENT,
201 : "Expected event %v to happen, but it did not!", start_evt);
202 :
203 0 : if (end_evt_missing)
204 0 : ECHO_FAIL (ECHO_FAIL_MISSING_END_EVENT,
205 : "Expected event %v to happen, but it did not!", end_evt);
206 :
207 0 : fformat (stdout, "Timing %v:%v\n", start_evt, end_evt);
208 0 : if (start_evt_missing)
209 0 : fformat (stdout, "Missing Start Timing Event (%v)!\n", start_evt);
210 0 : if (end_evt_missing)
211 0 : fformat (stdout, "Missing End Timing Event (%v)!\n", end_evt);
212 0 : fformat (stdout, "-------- TX --------\n");
213 0 : fformat (stdout, "%lld bytes (%lld mbytes, %lld gbytes) in %.6f seconds\n",
214 0 : em->stats.tx_total, em->stats.tx_total / (1ULL << 20),
215 0 : em->stats.tx_total / (1ULL << 30), deltat);
216 0 : if (deltat)
217 0 : fformat (stdout, "%.4f Gbit/second\n",
218 0 : (em->stats.tx_total * 8.0) / deltat / 1e9);
219 0 : fformat (stdout, "-------- RX --------\n");
220 0 : fformat (stdout, "%lld bytes (%lld mbytes, %lld gbytes) in %.6f seconds\n",
221 0 : em->stats.rx_total, em->stats.rx_total / (1ULL << 20),
222 0 : em->stats.rx_total / (1ULL << 30), deltat);
223 0 : if (deltat)
224 0 : fformat (stdout, "%.4f Gbit/second\n",
225 0 : (em->stats.rx_total * 8.0) / deltat / 1e9);
226 0 : fformat (stdout, "--------------------\n");
227 0 : fformat (stdout, "Received close on %d streams (and %d Quic conn)\n",
228 : em->stats.close_count.s, em->stats.close_count.q);
229 0 : fformat (stdout, "Received reset on %d streams (and %d Quic conn)\n",
230 : em->stats.reset_count.s, em->stats.reset_count.q);
231 0 : fformat (stdout, "Sent close on %d streams (and %d Quic conn)\n",
232 : em->stats.active_count.s, em->stats.active_count.q);
233 0 : fformat (stdout, "Discarded %d streams (and %d Quic conn)\n",
234 : em->stats.clean_count.s, em->stats.clean_count.q);
235 0 : fformat (stdout, "--------------------\n");
236 0 : fformat (stdout, "Got accept on %d streams (and %d Quic conn)\n",
237 : em->stats.accepted_count.s, em->stats.accepted_count.q);
238 0 : fformat (stdout, "Got connected on %d streams (and %d Quic conn)\n",
239 : em->stats.connected_count.s, em->stats.connected_count.q);
240 0 : if (em->has_failed)
241 0 : fformat (stdout, "\nFailure Return Status: %d\n%v", em->has_failed,
242 : em->fail_descr);
243 0 : vec_free (start_evt);
244 0 : vec_free (end_evt);
245 0 : }
246 :
247 : void
248 4 : echo_update_count_on_session_close (echo_main_t * em, echo_session_t * s)
249 : {
250 :
251 4 : ECHO_LOG (2, "[%lu/%lu] -> %U -> [%lu/%lu]",
252 : s->bytes_received, s->bytes_received + s->bytes_to_receive,
253 : echo_format_session, s, s->bytes_sent,
254 : s->bytes_sent + s->bytes_to_send);
255 :
256 4 : if (PREDICT_FALSE
257 : ((em->stats.rx_total == em->stats.rx_expected)
258 : && (em->stats.tx_total == em->stats.tx_expected)))
259 4 : echo_notify_event (em, ECHO_EVT_LAST_BYTE);
260 4 : }
261 :
262 : static void
263 10 : echo_session_detach_fifos (echo_session_t *s)
264 : {
265 10 : echo_main_t *em = &echo_main;
266 : fifo_segment_t *fs;
267 :
268 10 : if (!s->rx_fifo)
269 2 : return;
270 :
271 8 : clib_spinlock_lock (&em->segment_handles_lock);
272 :
273 8 : fs = fifo_segment_get_segment_if_valid (&em->segment_main,
274 8 : s->rx_fifo->segment_index);
275 :
276 8 : if (!fs)
277 0 : goto done;
278 :
279 8 : fifo_segment_free_client_fifo (fs, s->rx_fifo);
280 8 : fifo_segment_free_client_fifo (fs, s->tx_fifo);
281 :
282 8 : done:
283 8 : clib_spinlock_unlock (&em->segment_handles_lock);
284 : }
285 :
286 : static void
287 4 : echo_free_sessions (echo_main_t * em)
288 : {
289 : /* Free marked sessions */
290 : echo_session_t *s;
291 4 : u32 *session_indexes = 0, *session_index;
292 :
293 : /* *INDENT-OFF* */
294 16 : pool_foreach (s, em->sessions)
295 : {
296 12 : if (s->session_state == ECHO_SESSION_STATE_CLOSED)
297 10 : vec_add1 (session_indexes, s->session_index);
298 : }
299 : /* *INDENT-ON* */
300 14 : vec_foreach (session_index, session_indexes)
301 : {
302 : /* Free session */
303 10 : s = pool_elt_at_index (em->sessions, *session_index);
304 10 : echo_session_detach_fifos (s);
305 10 : echo_session_handle_add_del (em, s->vpp_session_handle,
306 : SESSION_INVALID_INDEX);
307 10 : clib_memset (s, 0xfe, sizeof (*s));
308 10 : pool_put (em->sessions, s);
309 : }
310 4 : }
311 :
312 : static void
313 2976 : test_recv_bytes (echo_main_t * em, echo_session_t * s, u8 * rx_buf,
314 : u32 n_read)
315 : {
316 : u32 i;
317 : u8 expected;
318 10619800 : for (i = 0; i < n_read; i++)
319 : {
320 10616800 : expected = (s->bytes_received + i) & 0xff;
321 10616800 : if (rx_buf[i] == expected || em->max_test_msg > 0)
322 10616800 : continue;
323 0 : ECHO_LOG (1, "Session 0x%lx byte %lld was 0x%x expected 0x%x",
324 : s->vpp_session_handle, s->bytes_received + i, rx_buf[i],
325 : expected);
326 0 : em->max_test_msg--;
327 0 : if (em->max_test_msg == 0)
328 0 : ECHO_LOG (1, "Too many errors, hiding next ones");
329 0 : if (em->test_return_packets == RETURN_PACKETS_ASSERT)
330 0 : ECHO_FAIL (ECHO_FAIL_TEST_BYTES_ERR, "test-bytes errored");
331 : }
332 2976 : }
333 :
334 : static int
335 7294670 : recv_data_chunk (echo_main_t * em, echo_session_t * s, u8 * rx_buf)
336 : {
337 : int n_read;
338 7294670 : n_read = app_recv ((app_session_t *) s, rx_buf, vec_len (rx_buf));
339 7294670 : if (n_read <= 0)
340 7291700 : return 0;
341 2976 : if (svm_fifo_needs_deq_ntf (s->rx_fifo, n_read))
342 1714 : echo_session_dequeue_notify (s);
343 :
344 2976 : if (em->test_return_packets)
345 2976 : test_recv_bytes (em, s, rx_buf, n_read);
346 :
347 2976 : s->bytes_received += n_read;
348 2976 : s->bytes_to_receive -= n_read;
349 2976 : clib_atomic_fetch_add (&em->stats.rx_total, n_read);
350 2976 : return n_read;
351 : }
352 :
353 : static int
354 2873560 : send_data_chunk (echo_session_t * s, u8 * tx_buf, int offset, int len)
355 : {
356 : int n_sent;
357 2873560 : int bytes_this_chunk = clib_min (s->bytes_to_send, len - offset);
358 2873560 : echo_main_t *em = &echo_main;
359 :
360 2873560 : if (!bytes_this_chunk)
361 0 : return 0;
362 2873560 : n_sent = app_send ((app_session_t *) s, tx_buf + offset,
363 : bytes_this_chunk, SVM_Q_WAIT);
364 2873560 : if (n_sent < 0)
365 2872940 : return 0;
366 620 : s->bytes_to_send -= n_sent;
367 620 : s->bytes_sent += n_sent;
368 620 : clib_atomic_fetch_add (&em->stats.tx_total, n_sent);
369 620 : return n_sent;
370 : }
371 :
372 : static int
373 32842 : mirror_data_chunk (echo_main_t * em, echo_session_t * s, u8 * tx_buf, u64 len)
374 : {
375 32842 : u64 n_sent = 0;
376 32860 : while (n_sent < len && !em->time_to_stop)
377 18 : n_sent += send_data_chunk (s, tx_buf, n_sent, len);
378 32842 : return n_sent;
379 : }
380 :
381 : static inline void
382 8123000 : echo_check_closed_listener (echo_main_t * em, echo_session_t * s)
383 : {
384 : echo_session_t *ls;
385 : /* if parent has died, terminate gracefully */
386 8123000 : if (s->listener_index == SESSION_INVALID_INDEX)
387 : {
388 0 : ECHO_LOG (3, "%U: listener_index == SESSION_INVALID_INDEX",
389 : echo_format_session, s);
390 0 : return;
391 : }
392 8123000 : ls = pool_elt_at_index (em->sessions, s->listener_index);
393 8123000 : if (ls->session_state < ECHO_SESSION_STATE_CLOSING)
394 : {
395 8123000 : ECHO_LOG (3, "%U: ls->session_state (%d) < "
396 : "ECHO_SESSION_STATE_CLOSING (%d)",
397 : echo_format_session, ls, ls->session_state,
398 : ECHO_SESSION_STATE_CLOSING);
399 8123000 : return;
400 : }
401 :
402 2 : ECHO_LOG (3, "%U died, close child %U", echo_format_session, ls,
403 : echo_format_session, s);
404 2 : echo_update_count_on_session_close (em, s);
405 2 : em->proto_cb_vft->cleanup_cb (s, 1 /* parent_died */ );
406 : }
407 :
408 : /*
409 : * Rx/Tx polling thread per connection
410 : */
411 : static void
412 7294670 : echo_handle_data (echo_main_t * em, echo_session_t * s, u8 * rx_buf)
413 : {
414 7294670 : int n_read, n_sent = 0;
415 :
416 7294670 : n_read = recv_data_chunk (em, s, rx_buf);
417 7294670 : if ((em->data_source == ECHO_TEST_DATA_SOURCE) && s->bytes_to_send)
418 2873540 : n_sent = send_data_chunk (s, em->connect_test_data,
419 2873540 : s->bytes_sent % em->tx_buf_size,
420 2873540 : em->tx_buf_size);
421 4421130 : else if (em->data_source == ECHO_RX_DATA_SOURCE)
422 32842 : n_sent = mirror_data_chunk (em, s, rx_buf, n_read);
423 7294670 : if (!s->bytes_to_send && !s->bytes_to_receive)
424 : {
425 : /* Session is done, need to close */
426 4 : if (s->session_state == ECHO_SESSION_STATE_AWAIT_DATA)
427 0 : s->session_state = ECHO_SESSION_STATE_CLOSING;
428 : else
429 : {
430 4 : s->session_state = ECHO_SESSION_STATE_AWAIT_CLOSING;
431 4 : if (em->send_stream_disconnects == ECHO_CLOSE_F_ACTIVE)
432 : {
433 2 : echo_send_rpc (em, echo_send_disconnect_session,
434 2 : (echo_rpc_args_t *) & s->vpp_session_handle);
435 2 : clib_atomic_fetch_add (&em->stats.active_count.s, 1);
436 : }
437 2 : else if (em->send_stream_disconnects == ECHO_CLOSE_F_NONE)
438 : {
439 0 : s->session_state = ECHO_SESSION_STATE_CLOSING;
440 0 : clib_atomic_fetch_add (&em->stats.clean_count.s, 1);
441 : }
442 : }
443 4 : ECHO_LOG (3, "%U: %U", echo_format_session, s,
444 : echo_format_session_state, s->session_state);
445 4 : return;
446 : }
447 :
448 : /* Check for idle clients */
449 7294670 : if (em->log_lvl > 1)
450 : {
451 0 : if (n_sent || n_read)
452 0 : s->idle_cycles = 0;
453 0 : else if (s->idle_cycles++ == LOG_EVERY_N_IDLE_CYCLES)
454 : {
455 0 : s->idle_cycles = 0;
456 0 : ECHO_LOG (2, "Idle client TX:%dB RX:%dB", s->bytes_to_send,
457 : s->bytes_to_receive);
458 0 : ECHO_LOG (2, "Idle FIFOs TX:%dB RX:%dB",
459 : svm_fifo_max_dequeue (s->tx_fifo),
460 : svm_fifo_max_dequeue (s->rx_fifo));
461 0 : ECHO_LOG (2, "Session 0x%lx state %U", s->vpp_session_handle,
462 : echo_format_session_state, s->session_state);
463 : }
464 : }
465 : }
466 :
467 : static void *
468 4 : echo_data_thread_fn (void *arg)
469 : {
470 4 : clib_mem_set_thread_index (); /* First thing to do in client thread */
471 4 : echo_main_t *em = &echo_main;
472 4 : u32 N = em->n_clients;
473 4 : u32 n = (N + em->n_rx_threads - 1) / em->n_rx_threads;
474 4 : u32 idx = (u64) arg;
475 4 : if (n * idx >= N)
476 : {
477 0 : ECHO_LOG (2, "Thread %u exiting, no sessions to care for", idx);
478 0 : pthread_exit (0);
479 : }
480 4 : u32 thread_n_sessions = clib_min (n, N - n * idx);
481 :
482 4 : u32 i = 0;
483 4 : u32 n_closed_sessions = 0;
484 : u32 session_index;
485 4 : u8 *rx_buf = 0;
486 : echo_session_t *s;
487 4 : vec_validate (rx_buf, em->rx_buf_size);
488 :
489 217242000 : for (i = 0; !em->time_to_stop; i = (i + 1) % thread_n_sessions)
490 : {
491 217242000 : n_closed_sessions = i == 0 ? 0 : n_closed_sessions;
492 217242000 : session_index = em->data_thread_args[n * idx + i];
493 217242000 : if (session_index == SESSION_INVALID_INDEX)
494 209119000 : continue;
495 8123000 : s = pool_elt_at_index (em->sessions, session_index);
496 8123000 : switch (s->session_state)
497 : {
498 7294670 : case ECHO_SESSION_STATE_READY:
499 : case ECHO_SESSION_STATE_AWAIT_DATA:
500 7294670 : echo_handle_data (em, s, rx_buf);
501 7294670 : echo_check_closed_listener (em, s);
502 7294670 : break;
503 828326 : case ECHO_SESSION_STATE_AWAIT_CLOSING:
504 828326 : ECHO_LOG (3, "%U: %U", echo_format_session, s,
505 : echo_format_session_state, s->session_state);
506 828326 : echo_check_closed_listener (em, s);
507 828326 : break;
508 2 : case ECHO_SESSION_STATE_CLOSING:
509 2 : ECHO_LOG (3, "%U: %U", echo_format_session, s,
510 : echo_format_session_state, s->session_state);
511 2 : echo_update_count_on_session_close (em, s);
512 2 : em->proto_cb_vft->cleanup_cb (s, 0 /* parent_died */ );
513 2 : break;
514 4 : case ECHO_SESSION_STATE_CLOSED:
515 4 : ECHO_LOG (3, "%U: %U", echo_format_session, s,
516 : echo_format_session_state, s->session_state);
517 4 : n_closed_sessions++;
518 4 : break;
519 : }
520 8123000 : if (n_closed_sessions == thread_n_sessions)
521 4 : break;
522 : }
523 4 : ECHO_LOG (2, "Mission accomplished!");
524 4 : pthread_exit (0);
525 : }
526 :
527 : static void
528 2 : session_unlisten_handler (session_unlisten_reply_msg_t * mp)
529 : {
530 : echo_session_t *ls;
531 2 : echo_main_t *em = &echo_main;
532 :
533 2 : ls = echo_get_session_from_handle (em, mp->handle);
534 2 : if (!ls)
535 0 : return;
536 2 : em->proto_cb_vft->cleanup_cb (ls, 0 /* parent_died */ );
537 2 : ls->session_state = ECHO_SESSION_STATE_CLOSED;
538 2 : if (--em->listen_session_cnt == 0)
539 2 : em->state = STATE_DISCONNECTED;
540 : }
541 :
542 : static void
543 2 : session_bound_handler (session_bound_msg_t * mp)
544 : {
545 2 : echo_main_t *em = &echo_main;
546 : echo_session_t *listen_session;
547 2 : if (mp->retval)
548 : {
549 0 : ECHO_FAIL (ECHO_FAIL_BIND, "bind failed: %U", format_api_error,
550 : clib_net_to_host_u32 (mp->retval));
551 0 : return;
552 : }
553 2 : ECHO_LOG (1, "listening on %U:%u", format_ip46_address, mp->lcl_ip,
554 : mp->lcl_is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
555 : clib_net_to_host_u16 (mp->lcl_port));
556 :
557 : /* Allocate local session and set it up */
558 2 : listen_session = echo_session_new (em);
559 2 : listen_session->session_type = ECHO_SESSION_TYPE_LISTEN;
560 2 : listen_session->vpp_session_handle = mp->handle;
561 2 : echo_session_handle_add_del (em, mp->handle, listen_session->session_index);
562 2 : vec_add1 (em->listen_session_indexes, listen_session->session_index);
563 2 : if (++em->listen_session_cnt == em->n_uris)
564 2 : em->state = STATE_LISTEN;
565 2 : if (em->proto_cb_vft->bound_uri_cb)
566 0 : em->proto_cb_vft->bound_uri_cb (mp, listen_session);
567 : }
568 :
569 : static void
570 4 : session_accepted_handler (session_accepted_msg_t * mp)
571 : {
572 4 : app_session_evt_t _app_evt, *app_evt = &_app_evt;
573 : session_accepted_reply_msg_t *rmp;
574 4 : echo_main_t *em = &echo_main;
575 : echo_session_t *session, *ls;
576 :
577 4 : if (!(ls = echo_get_session_from_handle (em, mp->listener_handle)))
578 : {
579 0 : ECHO_FAIL (ECHO_FAIL_SESSION_ACCEPTED_BAD_LISTENER,
580 : "Unknown listener handle 0x%lx", mp->listener_handle);
581 0 : return;
582 : }
583 :
584 : /* Allocate local session and set it up */
585 4 : session = echo_session_new (em);
586 :
587 4 : if (echo_attach_session (mp->segment_handle, mp->server_rx_fifo,
588 : mp->server_tx_fifo, mp->vpp_event_queue_address,
589 : session))
590 : {
591 0 : ECHO_FAIL (ECHO_FAIL_ACCEPTED_WAIT_FOR_SEG_ALLOC,
592 : "accepted wait_for_segment_allocation errored");
593 0 : return;
594 : }
595 :
596 4 : session->vpp_session_handle = mp->handle;
597 :
598 : /* session->transport needed by app_send_dgram */
599 4 : clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
600 : sizeof (ip46_address_t));
601 4 : session->transport.is_ip4 = mp->rmt.is_ip4;
602 4 : session->transport.rmt_port = mp->rmt.port;
603 4 : clib_memcpy_fast (&session->transport.lcl_ip, &em->uri_elts.ip,
604 : sizeof (ip46_address_t));
605 4 : session->transport.lcl_port = em->uri_elts.port;
606 :
607 4 : session->vpp_session_handle = mp->handle;
608 4 : session->listener_index = ls->session_index;
609 4 : session->start = clib_time_now (&em->clib_time);
610 :
611 : /* Add it to lookup table */
612 4 : ECHO_LOG (2, "Accepted session 0x%lx S[%u] -> 0x%lx S[%u]",
613 : mp->handle, session->session_index,
614 : mp->listener_handle, session->listener_index);
615 4 : echo_session_handle_add_del (em, mp->handle, session->session_index);
616 :
617 4 : app_alloc_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt,
618 : SESSION_CTRL_EVT_ACCEPTED_REPLY);
619 4 : rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
620 4 : rmp->handle = mp->handle;
621 4 : rmp->context = mp->context;
622 4 : app_send_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt);
623 4 : em->proto_cb_vft->accepted_cb (mp, session);
624 : }
625 :
626 : static void
627 4 : session_connected_handler (session_connected_msg_t * mp)
628 : {
629 4 : echo_main_t *em = &echo_main;
630 : echo_session_t *session;
631 4 : u32 listener_index = htonl (mp->context);
632 :
633 4 : clib_atomic_add_fetch (&em->max_sim_connects, 1);
634 :
635 4 : if (mp->retval)
636 : {
637 0 : if (em->proto_cb_vft->connected_cb)
638 0 : em->
639 0 : proto_cb_vft->connected_cb ((session_connected_bundled_msg_t *) mp,
640 : listener_index, 1 /* is_failed */ );
641 0 : return;
642 : }
643 :
644 4 : session = echo_session_new (em);
645 :
646 4 : if (echo_attach_session (mp->segment_handle, mp->server_rx_fifo,
647 : mp->server_tx_fifo, mp->vpp_event_queue_address,
648 : session))
649 : {
650 0 : ECHO_FAIL (ECHO_FAIL_CONNECTED_WAIT_FOR_SEG_ALLOC,
651 : "connected wait_for_segment_allocation errored");
652 0 : return;
653 : }
654 :
655 4 : session->vpp_session_handle = mp->handle;
656 4 : session->start = clib_time_now (&em->clib_time);
657 4 : session->listener_index = listener_index;
658 : /* session->transport needed by app_send_dgram */
659 4 : clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
660 : sizeof (ip46_address_t));
661 4 : session->transport.is_ip4 = mp->lcl.is_ip4;
662 4 : session->transport.lcl_port = mp->lcl.port;
663 4 : clib_memcpy_fast (&session->transport.rmt_ip, &em->uri_elts.ip,
664 : sizeof (ip46_address_t));
665 4 : session->transport.rmt_port = em->uri_elts.port;
666 :
667 4 : echo_session_handle_add_del (em, mp->handle, session->session_index);
668 4 : em->proto_cb_vft->connected_cb ((session_connected_bundled_msg_t *) mp,
669 : session->session_index, 0 /* is_failed */ );
670 : }
671 :
672 : /*
673 : *
674 : * End of ECHO callback definitions
675 : *
676 : */
677 :
678 : static void
679 2 : session_disconnected_handler (session_disconnected_msg_t * mp)
680 : {
681 2 : app_session_evt_t _app_evt, *app_evt = &_app_evt;
682 : session_disconnected_reply_msg_t *rmp;
683 2 : echo_main_t *em = &echo_main;
684 : echo_session_t *s;
685 2 : if (!(s = echo_get_session_from_handle (em, mp->handle)))
686 : {
687 0 : ECHO_LOG (1, "Invalid vpp_session_handle: 0x%lx", mp->handle);
688 0 : return;
689 : }
690 2 : if (s->session_state == ECHO_SESSION_STATE_CLOSED)
691 : {
692 0 : ECHO_LOG (2, "%U: already in ECHO_SESSION_STATE_CLOSED",
693 : echo_format_session, s);
694 : }
695 : else
696 : {
697 2 : ECHO_LOG (2, "%U: passive close", echo_format_session, s);
698 2 : em->proto_cb_vft->disconnected_cb (mp, s);
699 : }
700 2 : app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
701 : SESSION_CTRL_EVT_DISCONNECTED_REPLY);
702 2 : rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
703 2 : rmp->retval = 0;
704 2 : rmp->handle = mp->handle;
705 2 : rmp->context = mp->context;
706 2 : app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
707 : }
708 :
709 : static void
710 0 : session_reset_handler (session_reset_msg_t * mp)
711 : {
712 0 : app_session_evt_t _app_evt, *app_evt = &_app_evt;
713 0 : echo_main_t *em = &echo_main;
714 : session_reset_reply_msg_t *rmp;
715 0 : echo_session_t *s = 0;
716 0 : if (!(s = echo_get_session_from_handle (em, mp->handle)))
717 : {
718 0 : ECHO_LOG (1, "Invalid vpp_session_handle: 0x%lx", mp->handle);
719 0 : return;
720 : }
721 0 : ECHO_LOG (2, "%U: session reset", echo_format_session, s);
722 0 : em->proto_cb_vft->reset_cb (mp, s);
723 :
724 0 : app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
725 : SESSION_CTRL_EVT_RESET_REPLY);
726 0 : rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
727 0 : rmp->retval = 0;
728 0 : rmp->handle = mp->handle;
729 0 : app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
730 : }
731 :
732 : static int
733 2 : echo_recv_fd (echo_main_t *em, int *fds, int n_fds)
734 : {
735 2 : if (em->use_app_socket_api)
736 2 : return echo_sapi_recv_fd (em, fds, n_fds);
737 0 : return echo_bapi_recv_fd (em, fds, n_fds);
738 : }
739 :
740 : static void
741 2 : add_segment_handler (session_app_add_segment_msg_t * mp)
742 : {
743 2 : echo_main_t *em = &echo_main;
744 2 : fifo_segment_main_t *sm = &echo_main.segment_main;
745 2 : fifo_segment_create_args_t _a, *a = &_a;
746 2 : int *fds = 0, i;
747 2 : char *seg_name = (char *) mp->segment_name;
748 2 : u64 segment_handle = mp->segment_handle;
749 :
750 2 : if (mp->fd_flags & SESSION_FD_F_MEMFD_SEGMENT)
751 : {
752 2 : vec_validate (fds, 1);
753 2 : if (echo_recv_fd (em, fds, 1))
754 : {
755 0 : ECHO_LOG (0, "echo_recv_fd failed");
756 0 : em->time_to_stop = 1;
757 0 : goto failed;
758 : }
759 :
760 2 : if (echo_segment_attach (segment_handle, seg_name, SSVM_SEGMENT_MEMFD,
761 : fds[0]))
762 : {
763 0 : ECHO_FAIL (ECHO_FAIL_VL_API_SVM_FIFO_SEG_ATTACH,
764 : "svm_fifo_segment_attach ('%s') "
765 : "failed on SSVM_SEGMENT_MEMFD", seg_name);
766 0 : goto failed;
767 : }
768 2 : vec_free (fds);
769 : }
770 : else
771 : {
772 0 : clib_memset (a, 0, sizeof (*a));
773 0 : a->segment_name = seg_name;
774 0 : a->segment_size = mp->segment_size;
775 : /* Attach to the segment vpp created */
776 0 : if (fifo_segment_attach (sm, a))
777 : {
778 0 : ECHO_FAIL (ECHO_FAIL_VL_API_FIFO_SEG_ATTACH,
779 : "fifo_segment_attach ('%s') failed", seg_name);
780 0 : goto failed;
781 : }
782 : }
783 2 : ECHO_LOG (2, "Mapped segment 0x%lx", segment_handle);
784 2 : return;
785 :
786 0 : failed:
787 0 : for (i = 0; i < vec_len (fds); i++)
788 0 : close (fds[i]);
789 0 : vec_free (fds);
790 : }
791 :
792 : static void
793 0 : del_segment_handler (session_app_del_segment_msg_t * mp)
794 : {
795 0 : echo_segment_detach (mp->segment_handle);
796 0 : ECHO_LOG (2, "Unmaped segment 0x%lx", mp->segment_handle);
797 0 : }
798 :
799 : static void
800 4 : cleanup_handler (session_cleanup_msg_t * mp)
801 : {
802 4 : ECHO_LOG (1, "Cleanup confirmed for 0x%lx", mp->handle);
803 4 : }
804 :
805 : static void
806 2248 : handle_mq_event (session_event_t * e)
807 : {
808 2248 : switch (e->event_type)
809 : {
810 2 : case SESSION_CTRL_EVT_BOUND:
811 2 : return session_bound_handler ((session_bound_msg_t *) e->data);
812 4 : case SESSION_CTRL_EVT_ACCEPTED:
813 4 : return session_accepted_handler ((session_accepted_msg_t *) e->data);
814 4 : case SESSION_CTRL_EVT_CONNECTED:
815 4 : return session_connected_handler ((session_connected_msg_t *) e->data);
816 2 : case SESSION_CTRL_EVT_DISCONNECTED:
817 2 : return session_disconnected_handler ((session_disconnected_msg_t *)
818 2 : e->data);
819 0 : case SESSION_CTRL_EVT_RESET:
820 0 : return session_reset_handler ((session_reset_msg_t *) e->data);
821 2 : case SESSION_CTRL_EVT_UNLISTEN_REPLY:
822 2 : return session_unlisten_handler ((session_unlisten_reply_msg_t *)
823 2 : e->data);
824 2 : case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
825 2 : add_segment_handler ((session_app_add_segment_msg_t *) e->data);
826 2 : break;
827 0 : case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
828 0 : del_segment_handler ((session_app_del_segment_msg_t *) e->data);
829 0 : break;
830 4 : case SESSION_CTRL_EVT_CLEANUP:
831 4 : cleanup_handler ((session_cleanup_msg_t *) e->data);
832 4 : break;
833 2228 : case SESSION_IO_EVT_RX:
834 2228 : break;
835 0 : default:
836 0 : ECHO_LOG (1, "unhandled event %u", e->event_type);
837 : }
838 : }
839 :
840 : static void
841 4 : echo_process_rpcs (echo_main_t * em)
842 : {
843 : echo_rpc_msg_t *rpc;
844 : svm_msg_q_msg_t msg;
845 4 : svm_msg_q_t *mq = &em->rpc_msq_queue;
846 :
847 12 : while (em->state < STATE_DATA_DONE && !em->time_to_stop)
848 : {
849 8 : if (svm_msg_q_is_empty (mq) && svm_msg_q_timedwait (mq, 1))
850 : {
851 2 : continue;
852 : }
853 6 : svm_msg_q_sub_raw (mq, &msg);
854 6 : rpc = svm_msg_q_msg_data (mq, &msg);
855 6 : ((echo_rpc_t) rpc->fp) (em, &rpc->args);
856 6 : svm_msg_q_free_msg (mq, &msg);
857 : }
858 4 : }
859 :
860 : static inline void
861 0 : echo_print_periodic_stats (echo_main_t * em)
862 : {
863 0 : f64 delta, now = clib_time_now (&em->clib_time);
864 0 : echo_stats_t _st, *st = &_st;
865 0 : echo_stats_t *lst = &em->last_stat_sampling;
866 0 : delta = now - em->last_stat_sampling_ts;
867 0 : if (delta < em->periodic_stats_delta)
868 0 : return;
869 :
870 0 : clib_memcpy_fast (st, &em->stats, sizeof (*st));
871 0 : if (st->rx_total - lst->rx_total)
872 0 : clib_warning ("RX: %U", echo_format_bytes_per_sec,
873 : (st->rx_total - lst->rx_total) / delta);
874 0 : if (st->tx_total - lst->tx_total)
875 0 : clib_warning ("TX: %U", echo_format_bytes_per_sec,
876 : (st->tx_total - lst->tx_total) / delta);
877 0 : if (st->connected_count.q - lst->connected_count.q)
878 0 : clib_warning ("conn: %d/s",
879 : st->connected_count.q - lst->connected_count.q);
880 0 : if (st->accepted_count.q - lst->accepted_count.q)
881 0 : clib_warning ("accept: %d/s",
882 : st->accepted_count.q - lst->accepted_count.q);
883 :
884 0 : clib_memcpy_fast (lst, st, sizeof (*st));
885 0 : em->last_stat_sampling_ts = now;
886 : }
887 :
888 : static void *
889 4 : echo_mq_thread_fn (void *arg)
890 : {
891 4 : clib_mem_set_thread_index (); /* First thing to do in client thread */
892 4 : svm_msg_q_msg_t *msg_vec = 0;
893 4 : echo_main_t *em = &echo_main;
894 : session_event_t *e;
895 : svm_msg_q_msg_t *msg;
896 : svm_msg_q_t *mq;
897 : int i;
898 :
899 4 : vec_validate (msg_vec, em->evt_q_size);
900 4 : vec_reset_length (msg_vec);
901 4 : wait_for_state_change (em, STATE_ATTACHED, 0);
902 4 : mq = em->app_mq;
903 4 : if (em->state < STATE_ATTACHED || !mq)
904 : {
905 0 : ECHO_FAIL (ECHO_FAIL_APP_ATTACH, "Application failed to attach");
906 0 : pthread_exit (0);
907 : }
908 :
909 1825 : while (em->state < STATE_DETACHED && !em->time_to_stop)
910 : {
911 1821 : if (em->periodic_stats_delta)
912 0 : echo_print_periodic_stats (em);
913 :
914 1821 : if (svm_msg_q_is_empty (mq) && svm_msg_q_timedwait (mq, 1))
915 : {
916 8 : continue;
917 : }
918 4061 : for (i = 0; i < svm_msg_q_size (mq); i++)
919 : {
920 2248 : vec_add2 (msg_vec, msg, 1);
921 2248 : svm_msg_q_sub_raw (mq, msg);
922 : }
923 :
924 4061 : for (i = 0; i < vec_len (msg_vec); i++)
925 : {
926 2248 : msg = vec_elt_at_index (msg_vec, i);
927 2248 : e = svm_msg_q_msg_data (mq, msg);
928 2248 : handle_mq_event (e);
929 2248 : svm_msg_q_free_msg (mq, msg); /* No lock, single thread dequeuing */
930 : }
931 1813 : vec_reset_length (msg_vec);
932 : }
933 4 : vec_free (msg_vec);
934 4 : pthread_exit (0);
935 : }
936 :
937 : static inline void
938 4 : echo_cycle_ip (echo_main_t * em, ip46_address_t * ip, ip46_address_t * src_ip,
939 : u32 i)
940 : {
941 : u8 *ipu8;
942 : u8 l;
943 4 : if (i % em->n_uris == 0)
944 : {
945 4 : clib_memcpy_fast (ip, src_ip, sizeof (*ip));
946 4 : return;
947 : }
948 0 : l = em->uri_elts.is_ip4 ? 3 : 15;
949 0 : ipu8 = em->uri_elts.is_ip4 ? ip->ip4.as_u8 : ip->ip6.as_u8;
950 0 : while (ipu8[l] == 0xf)
951 0 : ipu8[l--] = 0;
952 0 : if (l)
953 0 : ipu8[l]++;
954 : }
955 :
956 : static void
957 2 : clients_run (echo_main_t * em)
958 : {
959 2 : echo_connect_args_t _a, *a = &_a;
960 : u64 i;
961 :
962 2 : a->context = SESSION_INVALID_INDEX;
963 2 : a->parent_session_handle = SESSION_INVALID_HANDLE;
964 2 : clib_memset (&a->lcl_ip, 0, sizeof (a->lcl_ip));
965 :
966 2 : echo_notify_event (em, ECHO_EVT_FIRST_QCONNECT);
967 4 : for (i = 0; i < em->n_connects; i++)
968 : {
969 2 : echo_cycle_ip (em, &a->ip, &em->uri_elts.ip, i);
970 2 : if (em->lcl_ip_set)
971 0 : echo_cycle_ip (em, &a->lcl_ip, &em->lcl_ip, i);
972 2 : echo_send_connect (em, a);
973 : }
974 2 : wait_for_state_change (em, STATE_READY, 0);
975 2 : ECHO_LOG (2, "App is ready");
976 2 : echo_process_rpcs (em);
977 2 : }
978 :
979 : static void
980 2 : server_run (echo_main_t * em)
981 : {
982 : echo_session_t *ls;
983 2 : ip46_address_t _ip, *ip = &_ip;
984 : u32 *listen_session_index;
985 : u32 i;
986 :
987 4 : for (i = 0; i < em->n_uris; i++)
988 : {
989 2 : echo_cycle_ip (em, ip, &em->uri_elts.ip, i);
990 2 : echo_send_listen (em, ip);
991 : }
992 2 : wait_for_state_change (em, STATE_READY, 0);
993 2 : ECHO_LOG (2, "App is ready");
994 2 : echo_process_rpcs (em);
995 : /* Cleanup */
996 4 : vec_foreach (listen_session_index, em->listen_session_indexes)
997 : {
998 2 : ECHO_LOG (2, "Unbind listen port %d", em->listen_session_cnt);
999 2 : ls = pool_elt_at_index (em->sessions, *listen_session_index);
1000 2 : echo_send_unbind (em, ls);
1001 : }
1002 2 : if (wait_for_state_change (em, STATE_DISCONNECTED, TIMEOUT))
1003 : {
1004 0 : ECHO_FAIL (ECHO_FAIL_SERVER_DISCONNECT_TIMEOUT,
1005 : "Timeout waiting for state disconnected");
1006 0 : return;
1007 : }
1008 : }
1009 :
1010 : static void
1011 0 : print_usage_and_exit (void)
1012 : {
1013 0 : echo_main_t *em = &echo_main;
1014 : int i;
1015 0 : fprintf (stderr,
1016 : "Usage: vpp_echo [socket-name SOCKET] [client|server] [uri URI] [OPTIONS]\n"
1017 : "Generates traffic and assert correct teardown of the hoststack\n"
1018 : "\n"
1019 : " socket-name PATH Specify the binary socket path to connect to VPP\n"
1020 : " use-svm-api Use SVM API to connect to VPP\n"
1021 : " test-bytes[:assert] Check data correctness when receiving (assert fails on first error)\n"
1022 : " fifo-size N[K|M|G] Use N[K|M|G] fifos\n"
1023 : " mq-size N Use mq with N slots for [vpp_echo->vpp] communication\n"
1024 : " max-sim-connects N Do not allow more than N mq events inflight\n"
1025 : " rx-buf N[K|M|G] Use N[Kb|Mb|GB] RX buffer\n"
1026 : " tx-buf N[K|M|G] Use N[Kb|Mb|GB] TX test buffer\n"
1027 : " appns NAMESPACE Use the namespace NAMESPACE\n"
1028 : " all-scope all-scope option\n"
1029 : " local-scope local-scope option\n"
1030 : " global-scope global-scope option\n"
1031 : " secret SECRET set namespace secret\n"
1032 : " chroot prefix PATH Use PATH as memory root path\n"
1033 : " sclose=[Y|N|W] When stream is done, send[Y]|nop[N]|wait[W] for close\n"
1034 : " nuris N Cycle through N consecutive (src&dst) ips when creating connections\n"
1035 : " lcl IP Set the local ip to use as a client (use with nuris to set first src ip)\n"
1036 : "\n"
1037 : " time START:END Time between evts START & END, events being :\n"
1038 : " start - Start of the app\n"
1039 : " qconnect - first Connection connect sent\n"
1040 : " qconnected - last Connection connected\n"
1041 : " sconnect - first Stream connect sent\n"
1042 : " sconnected - last Stream got connected\n"
1043 : " lastbyte - Last expected byte received\n"
1044 : " exit - Exiting of the app\n"
1045 : " rx-results-diff Rx results different to pass test\n"
1046 : " tx-results-diff Tx results different to pass test\n"
1047 : " json Output global stats in json\n"
1048 : " stats N Output stats evry N secs\n"
1049 : " log=N Set the log level to [0: no output, 1:errors, 2:log]\n"
1050 : " crypto [engine] Set the crypto engine [openssl, vpp, picotls, mbedtls]\n"
1051 : "\n"
1052 : " nclients N Open N clients sending data\n"
1053 : " nthreads N Use N busy loop threads for data [in addition to main & msg queue]\n"
1054 : " TX=1337[K|M|G]|RX Send 1337 [K|M|G]bytes, use TX=RX to reflect the data\n"
1055 : " RX=1337[K|M|G] Expect 1337 [K|M|G]bytes\n" "\n");
1056 0 : for (i = 0; i < vec_len (em->available_proto_cb_vft); i++)
1057 : {
1058 0 : echo_proto_cb_vft_t *vft = em->available_proto_cb_vft[i];
1059 0 : if (vft && vft->print_usage_cb)
1060 0 : vft->print_usage_cb ();
1061 : }
1062 0 : fprintf (stderr, "\nDefault configuration is :\n"
1063 : " server nclients 1 [quic-streams 1] RX=64Kb TX=RX\n"
1064 : " client nclients 1 [quic-streams 1] RX=64Kb TX=64Kb\n");
1065 0 : exit (ECHO_FAIL_USAGE);
1066 : }
1067 :
1068 : static int
1069 48 : echo_process_each_proto_opts (unformat_input_t * a)
1070 : {
1071 48 : echo_main_t *em = &echo_main;
1072 : int i, rv;
1073 284 : for (i = 0; i < vec_len (em->available_proto_cb_vft); i++)
1074 : {
1075 240 : echo_proto_cb_vft_t *vft = em->available_proto_cb_vft[i];
1076 240 : if (vft && vft->process_opts_cb)
1077 48 : if ((rv = vft->process_opts_cb (a)))
1078 4 : return rv;
1079 : }
1080 44 : return 0;
1081 : }
1082 :
1083 : static void
1084 4 : echo_set_each_proto_defaults_before_opts (echo_main_t * em)
1085 : {
1086 : int i;
1087 24 : for (i = 0; i < vec_len (em->available_proto_cb_vft); i++)
1088 : {
1089 20 : echo_proto_cb_vft_t *vft = em->available_proto_cb_vft[i];
1090 20 : if (vft && vft->set_defaults_before_opts_cb)
1091 4 : vft->set_defaults_before_opts_cb ();
1092 : }
1093 4 : }
1094 :
1095 : void
1096 4 : echo_process_opts (int argc, char **argv)
1097 : {
1098 4 : echo_main_t *em = &echo_main;
1099 4 : unformat_input_t _argv, *a = &_argv;
1100 : u8 *chroot_prefix;
1101 4 : u8 *uri = 0;
1102 : u8 default_f_active;
1103 : uword tmp;
1104 :
1105 4 : unformat_init_command_line (a, argv);
1106 52 : while (unformat_check_input (a) != UNFORMAT_END_OF_INPUT)
1107 : {
1108 48 : if (echo_process_each_proto_opts (a))
1109 : ;
1110 44 : else if (unformat (a, "chroot prefix %s", &chroot_prefix))
1111 0 : vl_set_memory_root_path ((char *) chroot_prefix);
1112 44 : else if (unformat (a, "uri %s", &uri))
1113 4 : em->uri = format (0, "%s%c", uri, 0);
1114 40 : else if (unformat (a, "lcl %U", unformat_ip46_address, &em->lcl_ip))
1115 0 : em->lcl_ip_set = 1;
1116 40 : else if (unformat (a, "nuris %u", &em->n_uris))
1117 0 : em->n_sessions = em->n_clients + em->n_uris;
1118 40 : else if (unformat (a, "server"))
1119 2 : em->i_am_master = 1;
1120 38 : else if (unformat (a, "client"))
1121 2 : em->i_am_master = 0;
1122 36 : else if (unformat (a, "test-bytes:assert"))
1123 4 : em->test_return_packets = RETURN_PACKETS_ASSERT;
1124 32 : else if (unformat (a, "test-bytes"))
1125 0 : em->test_return_packets = RETURN_PACKETS_LOG_WRONG;
1126 32 : else if (unformat (a, "socket-name %s", &em->socket_name))
1127 : ;
1128 28 : else if (unformat (a, "use-app-socket-api"))
1129 4 : em->use_app_socket_api = 1;
1130 24 : else if (unformat (a, "use-svm-api"))
1131 0 : em->use_sock_api = 0;
1132 24 : else if (unformat (a, "fifo-size %U", unformat_memory_size, &tmp))
1133 : {
1134 4 : if (tmp >= 0x100000000ULL)
1135 : {
1136 0 : fprintf (stderr,
1137 : "ERROR: fifo-size %ld (0x%lx) too large\n", tmp, tmp);
1138 0 : print_usage_and_exit ();
1139 : }
1140 4 : em->fifo_size = tmp;
1141 : }
1142 20 : else if (unformat (a, "prealloc-fifos %u", &em->prealloc_fifo_pairs))
1143 : ;
1144 : else
1145 20 : if (unformat (a, "rx-buf %U", unformat_data_size, &em->rx_buf_size))
1146 : ;
1147 : else
1148 20 : if (unformat (a, "tx-buf %U", unformat_data_size, &em->tx_buf_size))
1149 : ;
1150 20 : else if (unformat (a, "mq-size %d", &em->evt_q_size))
1151 : ;
1152 16 : else if (unformat (a, "nclients %d", &em->n_clients))
1153 : {
1154 0 : em->n_sessions = em->n_clients + em->n_uris;
1155 0 : em->n_connects = em->n_clients;
1156 : }
1157 16 : else if (unformat (a, "nthreads %d", &em->n_rx_threads))
1158 : ;
1159 12 : else if (unformat (a, "crypto %U", echo_unformat_crypto_engine, &tmp))
1160 0 : em->crypto_engine = tmp;
1161 12 : else if (unformat (a, "appns %_%v%_", &em->appns_id))
1162 : ;
1163 8 : else if (unformat (a, "all-scope"))
1164 0 : em->appns_flags |= (APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE
1165 : | APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE);
1166 8 : else if (unformat (a, "local-scope"))
1167 0 : em->appns_flags = APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE;
1168 8 : else if (unformat (a, "global-scope"))
1169 0 : em->appns_flags = APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
1170 8 : else if (unformat (a, "secret %lu", &em->appns_secret))
1171 : ;
1172 8 : else if (unformat (a, "TX=RX"))
1173 0 : em->data_source = ECHO_RX_DATA_SOURCE;
1174 8 : else if (unformat (a, "TX=%U", unformat_data_size, &em->bytes_to_send))
1175 : ;
1176 6 : else if (unformat (a, "RX=%U", unformat_data_size,
1177 : &em->bytes_to_receive))
1178 : ;
1179 4 : else if (unformat (a, "rx-results-diff"))
1180 0 : em->rx_results_diff = 1;
1181 4 : else if (unformat (a, "tx-results-diff"))
1182 0 : em->tx_results_diff = 1;
1183 4 : else if (unformat (a, "json"))
1184 4 : em->output_json = 1;
1185 0 : else if (unformat (a, "stats %d", &em->periodic_stats_delta))
1186 : ;
1187 0 : else if (unformat (a, "wait-for-gdb"))
1188 0 : em->wait_for_gdb = 1;
1189 0 : else if (unformat (a, "log=%d", &em->log_lvl))
1190 : ;
1191 0 : else if (unformat (a, "sclose=%U",
1192 : echo_unformat_close, &em->send_stream_disconnects))
1193 : ;
1194 0 : else if (unformat (a, "time %U:%U",
1195 : echo_unformat_timing_event, &em->timing.start_event,
1196 : echo_unformat_timing_event, &em->timing.end_event))
1197 : ;
1198 0 : else if (unformat (a, "max-sim-connects %d", &em->max_sim_connects))
1199 : ;
1200 : else
1201 0 : print_usage_and_exit ();
1202 : }
1203 :
1204 : /* setting default for unset values
1205 : *
1206 : * bytes_to_send / bytes_to_receive & data_source */
1207 4 : if (em->bytes_to_receive == (u64) ~ 0)
1208 2 : em->bytes_to_receive = 64 << 10; /* default */
1209 4 : if (em->bytes_to_send == (u64) ~ 0)
1210 2 : em->bytes_to_send = 64 << 10; /* default */
1211 2 : else if (em->bytes_to_send == 0)
1212 1 : em->data_source = ECHO_NO_DATA_SOURCE;
1213 : else
1214 1 : em->data_source = ECHO_TEST_DATA_SOURCE;
1215 :
1216 4 : if (em->data_source == ECHO_INVALID_DATA_SOURCE)
1217 2 : em->data_source =
1218 2 : em->i_am_master ? ECHO_RX_DATA_SOURCE : ECHO_TEST_DATA_SOURCE;
1219 4 : if (em->data_source == ECHO_RX_DATA_SOURCE)
1220 1 : em->bytes_to_send = em->bytes_to_receive;
1221 :
1222 : /* disconnect flags */
1223 4 : if (em->i_am_master)
1224 2 : default_f_active =
1225 2 : em->bytes_to_send == 0 ? ECHO_CLOSE_F_ACTIVE : ECHO_CLOSE_F_PASSIVE;
1226 : else
1227 2 : default_f_active =
1228 2 : em->bytes_to_receive == 0 ? ECHO_CLOSE_F_PASSIVE : ECHO_CLOSE_F_ACTIVE;
1229 4 : if (em->send_stream_disconnects == ECHO_CLOSE_F_INVALID)
1230 4 : em->send_stream_disconnects = default_f_active;
1231 :
1232 4 : if (em->max_sim_connects == 0)
1233 4 : em->max_sim_connects = em->evt_q_size >> 1;
1234 :
1235 4 : if (em->wait_for_gdb)
1236 : {
1237 0 : volatile u64 nop = 0;
1238 :
1239 0 : clib_warning ("Waiting for gdb...");
1240 0 : while (em->wait_for_gdb)
1241 0 : nop++;
1242 0 : clib_warning ("Resuming execution (%llu)!", nop);
1243 : }
1244 4 : }
1245 :
1246 : static int
1247 8 : echo_needs_crypto (echo_main_t *em)
1248 : {
1249 8 : u8 tr = em->uri_elts.transport_proto;
1250 8 : if (tr == TRANSPORT_PROTO_QUIC || tr == TRANSPORT_PROTO_TLS)
1251 8 : return 1;
1252 0 : return 0;
1253 : }
1254 :
1255 : void
1256 4 : echo_process_uri (echo_main_t * em)
1257 : {
1258 4 : unformat_input_t _input, *input = &_input;
1259 : u32 port;
1260 4 : unformat_init_string (input, (char *) em->uri, strlen ((char *) em->uri));
1261 4 : if (unformat
1262 : (input, "%U://%U/%d", unformat_transport_proto,
1263 : &em->uri_elts.transport_proto, unformat_ip4_address,
1264 : &em->uri_elts.ip.ip4, &port))
1265 4 : em->uri_elts.is_ip4 = 1;
1266 : else
1267 0 : if (unformat
1268 : (input, "%U://%U/%d", unformat_transport_proto,
1269 : &em->uri_elts.transport_proto, unformat_ip6_address,
1270 : &em->uri_elts.ip.ip6, &port))
1271 0 : em->uri_elts.is_ip4 = 0;
1272 : else
1273 0 : ECHO_FAIL (ECHO_FAIL_INVALID_URI, "Unable to process uri");
1274 4 : em->uri_elts.port = clib_host_to_net_u16 (port);
1275 4 : unformat_free (input);
1276 4 : }
1277 :
1278 : static void __clib_constructor
1279 4 : vpp_echo_init ()
1280 : {
1281 : /* init memory before proto register themselves */
1282 4 : echo_main_t *em = &echo_main;
1283 4 : clib_mem_init_thread_safe (0, 256 << 20);
1284 4 : clib_memset (em, 0, sizeof (*em));
1285 4 : }
1286 :
1287 : static int
1288 4 : echo_detach (echo_main_t *em)
1289 : {
1290 4 : if (em->use_app_socket_api)
1291 4 : return echo_sapi_detach (em);
1292 :
1293 0 : echo_send_detach (em);
1294 0 : if (wait_for_state_change (em, STATE_DETACHED, TIMEOUT))
1295 : {
1296 0 : ECHO_FAIL (ECHO_FAIL_DETACH, "Couldn't detach from vpp");
1297 0 : return -1;
1298 : }
1299 0 : return 0;
1300 : }
1301 :
1302 : static void
1303 4 : echo_add_cert_key (echo_main_t *em)
1304 : {
1305 4 : if (em->use_app_socket_api)
1306 4 : echo_sapi_add_cert_key (em);
1307 : else
1308 : {
1309 0 : echo_send_add_cert_key (em);
1310 0 : if (wait_for_state_change (em, STATE_ATTACHED, TIMEOUT))
1311 : {
1312 0 : ECHO_FAIL (ECHO_FAIL_APP_ATTACH,
1313 : "Couldn't add crypto context to vpp\n");
1314 0 : exit (1);
1315 : }
1316 : }
1317 4 : }
1318 :
1319 : static int
1320 4 : echo_del_cert_key (echo_main_t *em)
1321 : {
1322 4 : if (em->use_app_socket_api)
1323 4 : return echo_sapi_del_cert_key (em);
1324 :
1325 0 : echo_send_del_cert_key (em);
1326 0 : if (wait_for_state_change (em, STATE_CLEANED_CERT_KEY, TIMEOUT))
1327 : {
1328 0 : ECHO_FAIL (ECHO_FAIL_DEL_CERT_KEY, "Couldn't cleanup cert and key");
1329 0 : return -1;
1330 : }
1331 0 : return 0;
1332 : }
1333 :
1334 : static void
1335 4 : echo_disconnect (echo_main_t *em)
1336 : {
1337 4 : if (em->use_app_socket_api)
1338 4 : return;
1339 :
1340 0 : if (em->use_sock_api)
1341 0 : vl_socket_client_disconnect ();
1342 : else
1343 0 : vl_client_disconnect_from_vlib ();
1344 : }
1345 :
1346 : static int
1347 4 : echo_attach (echo_main_t *em)
1348 : {
1349 4 : if (em->use_app_socket_api)
1350 4 : return echo_sapi_attach (em);
1351 : else
1352 : {
1353 0 : echo_api_hookup (em);
1354 0 : echo_send_attach (em);
1355 0 : if (wait_for_state_change (em, STATE_ATTACHED_NO_CERT, TIMEOUT))
1356 : {
1357 0 : ECHO_FAIL (ECHO_FAIL_ATTACH_TO_VPP,
1358 : "Couldn't attach to vpp, did you run <session enable> ?");
1359 0 : return -1;
1360 : }
1361 : }
1362 0 : return 0;
1363 : }
1364 :
1365 : int
1366 4 : main (int argc, char **argv)
1367 : {
1368 4 : echo_main_t *em = &echo_main;
1369 4 : fifo_segment_main_t *sm = &em->segment_main;
1370 : u64 i;
1371 : int *rv;
1372 4 : svm_msg_q_cfg_t _cfg, *cfg = &_cfg;
1373 4 : u32 rpc_queue_size = 256 << 10;
1374 :
1375 4 : em->session_index_by_vpp_handles = hash_create (0, sizeof (uword));
1376 4 : clib_spinlock_init (&em->sid_vpp_handles_lock);
1377 4 : em->shared_segment_handles = hash_create (0, sizeof (uword));
1378 4 : clib_spinlock_init (&em->segment_handles_lock);
1379 4 : em->socket_name = format (0, "%s%c", API_SOCKET_FILE, 0);
1380 4 : em->use_sock_api = 1;
1381 4 : em->fifo_size = 64 << 10;
1382 4 : em->prealloc_fifo_pairs = 16;
1383 4 : em->n_clients = 1;
1384 4 : em->n_connects = 1;
1385 4 : em->n_sessions = 2;
1386 4 : em->max_test_msg = 50;
1387 4 : em->time_to_stop = 0;
1388 4 : em->i_am_master = 1;
1389 4 : em->n_rx_threads = 4;
1390 4 : em->evt_q_size = 256;
1391 4 : em->lcl_ip_set = 0;
1392 4 : clib_memset (&em->lcl_ip, 0, sizeof (em->lcl_ip));
1393 4 : em->test_return_packets = RETURN_PACKETS_NOTEST;
1394 4 : em->timing.start_event = ECHO_EVT_FIRST_QCONNECT;
1395 4 : em->timing.end_event = ECHO_EVT_LAST_BYTE;
1396 4 : em->bytes_to_receive = ~0; /* defaulted when we know if server/client */
1397 4 : em->bytes_to_send = ~0; /* defaulted when we know if server/client */
1398 4 : em->rx_buf_size = 1 << 20;
1399 4 : em->tx_buf_size = 1 << 20;
1400 4 : em->data_source = ECHO_INVALID_DATA_SOURCE;
1401 4 : em->uri = format (0, "%s%c", "tcp://0.0.0.0/1234", 0);
1402 4 : em->n_uris = 1;
1403 4 : em->max_sim_connects = 0;
1404 4 : em->listen_session_cnt = 0;
1405 4 : em->crypto_engine = CRYPTO_ENGINE_NONE;
1406 4 : echo_set_each_proto_defaults_before_opts (em);
1407 4 : echo_process_opts (argc, argv);
1408 4 : echo_process_uri (em);
1409 4 : em->proto_cb_vft = em->available_proto_cb_vft[em->uri_elts.transport_proto];
1410 4 : if (!em->proto_cb_vft)
1411 : {
1412 0 : ECHO_FAIL (ECHO_FAIL_PROTOCOL_NOT_SUPPORTED,
1413 : "Protocol %U is not supported",
1414 : format_transport_proto, em->uri_elts.transport_proto);
1415 0 : goto exit_on_error;
1416 : }
1417 4 : if (em->proto_cb_vft->set_defaults_after_opts_cb)
1418 4 : em->proto_cb_vft->set_defaults_after_opts_cb ();
1419 :
1420 4 : em->stats.rx_expected = em->bytes_to_receive * em->n_clients;
1421 4 : em->stats.tx_expected = em->bytes_to_send * em->n_clients;
1422 :
1423 4 : vec_validate (em->data_thread_handles, em->n_rx_threads);
1424 4 : vec_validate (em->data_thread_args, em->n_clients);
1425 8 : for (i = 0; i < em->n_clients; i++)
1426 4 : em->data_thread_args[i] = SESSION_INVALID_INDEX;
1427 4 : clib_time_init (&em->clib_time);
1428 4 : init_error_string_table ();
1429 4 : fifo_segment_main_init (sm, HIGH_SEGMENT_BASEVA, 20);
1430 4 : vec_validate (em->connect_test_data, em->tx_buf_size);
1431 4194310 : for (i = 0; i < em->tx_buf_size; i++)
1432 4194300 : em->connect_test_data[i] = i & 0xff;
1433 :
1434 : /* *INDENT-OFF* */
1435 4 : svm_msg_q_ring_cfg_t rc[1] = {
1436 : {rpc_queue_size, sizeof (echo_rpc_msg_t), 0},
1437 : };
1438 : /* *INDENT-ON* */
1439 4 : cfg->consumer_pid = getpid ();
1440 4 : cfg->n_rings = 1;
1441 4 : cfg->q_nitems = rpc_queue_size;
1442 4 : cfg->ring_cfgs = rc;
1443 4 : svm_msg_q_attach (&em->rpc_msq_queue, svm_msg_q_alloc (cfg));
1444 :
1445 4 : signal (SIGINT, stop_signal);
1446 4 : signal (SIGQUIT, stop_signal);
1447 4 : signal (SIGTERM, stop_signal);
1448 :
1449 4 : em->app_name =
1450 4 : format (0, "%s%c", em->i_am_master ? "echo_server" : "echo_client", 0);
1451 :
1452 4 : if (connect_to_vpp (em))
1453 : {
1454 0 : svm_region_exit ();
1455 0 : ECHO_FAIL (ECHO_FAIL_CONNECT_TO_VPP, "Couldn't connect to vpp");
1456 0 : goto exit_on_error;
1457 : }
1458 :
1459 4 : echo_session_prealloc (em);
1460 4 : echo_notify_event (em, ECHO_EVT_START);
1461 :
1462 4 : if (echo_attach (em))
1463 0 : goto exit_on_error;
1464 :
1465 4 : if (echo_needs_crypto (em))
1466 : {
1467 4 : ECHO_LOG (2, "Adding crypto context %U", echo_format_crypto_engine,
1468 : em->crypto_engine);
1469 4 : echo_add_cert_key (em);
1470 : }
1471 : else
1472 : {
1473 0 : em->state = STATE_ATTACHED;
1474 : }
1475 :
1476 4 : if (pthread_create (&em->mq_thread_handle, NULL /*attr */, echo_mq_thread_fn,
1477 : 0))
1478 : {
1479 0 : ECHO_FAIL (ECHO_FAIL_PTHREAD_CREATE, "pthread create errored");
1480 0 : goto exit_on_error;
1481 : }
1482 :
1483 8 : for (i = 0; i < em->n_rx_threads; i++)
1484 4 : if (pthread_create (&em->data_thread_handles[i],
1485 : NULL /*attr */ , echo_data_thread_fn, (void *) i))
1486 : {
1487 0 : ECHO_FAIL (ECHO_FAIL_PTHREAD_CREATE,
1488 : "pthread create errored (index %d)", i);
1489 0 : goto exit_on_error;
1490 : }
1491 4 : if (em->i_am_master)
1492 2 : server_run (em);
1493 : else
1494 2 : clients_run (em);
1495 4 : echo_notify_event (em, ECHO_EVT_EXIT);
1496 4 : echo_free_sessions (em);
1497 4 : if (echo_needs_crypto (em))
1498 : {
1499 4 : if (echo_del_cert_key (em))
1500 0 : goto exit_on_error;
1501 : }
1502 :
1503 4 : if (echo_detach (em))
1504 0 : goto exit_on_error;
1505 :
1506 4 : pthread_join (em->mq_thread_handle, (void **) &rv);
1507 4 : if (rv)
1508 : {
1509 0 : ECHO_FAIL (ECHO_FAIL_MQ_PTHREAD, "mq pthread errored %d", rv);
1510 0 : goto exit_on_error;
1511 : }
1512 4 : echo_disconnect (em);
1513 4 : echo_assert_test_suceeded (em);
1514 4 : exit_on_error:
1515 4 : ECHO_LOG (1, "Test complete !\n");
1516 4 : if (em->output_json)
1517 4 : print_global_json_stats (em);
1518 : else
1519 0 : print_global_stats (em);
1520 4 : vec_free (em->fail_descr);
1521 4 : vec_free (em->available_proto_cb_vft);
1522 4 : exit (em->has_failed);
1523 : }
1524 :
1525 : /*
1526 : * fd.io coding-style-patch-verification: ON
1527 : *
1528 : * Local Variables:
1529 : * eval: (c-set-style "gnu")
1530 : * End:
1531 : */
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