2 * Copyright (c) 2016 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.
19 #include <vnet/session/application_interface.h>
20 #include <svm/svm_fifo_segment.h>
21 #include <vlibmemory/api.h>
23 #include <vpp/api/vpe_msg_enum.h>
25 #define vl_typedefs /* define message structures */
26 #include <vpp/api/vpe_all_api_h.h>
29 /* declare message handlers for each api */
31 #define vl_endianfun /* define message structures */
32 #include <vpp/api/vpe_all_api_h.h>
35 /* instantiate all the print functions we know about */
36 #define vl_print(handle, ...)
38 #include <vpp/api/vpe_all_api_h.h>
41 #define TCP_ECHO_DBG 0
42 #define DBG(_fmt,_args...) \
44 clib_warning (_fmt, _args)
48 svm_fifo_t *server_rx_fifo;
49 svm_fifo_t *server_tx_fifo;
51 svm_msg_q_t *vpp_evt_q;
53 u64 vpp_session_handle;
56 volatile u64 bytes_received;
57 volatile u64 bytes_to_receive;
75 svm_queue_t *vl_input_queue;
77 /* API client handle */
80 /* The URI we're playing with */
86 /* Hash table for disconnect processing */
87 uword *session_index_by_vpp_handles;
89 /* intermediate rx buffer */
92 /* URI for slave's connect */
95 u32 connected_session_index;
99 /* drop all packets */
102 /* Our event queue */
103 svm_msg_q_t *our_event_queue;
109 /* For deadman timers */
110 clib_time_t clib_time;
112 /* State of the connection, shared between msg RX thread and main thread */
113 volatile connection_state_t state;
115 /* Signal variables */
116 volatile int time_to_stop;
117 volatile int time_to_print_stats;
119 u32 configured_segment_size;
121 /* VNET_API_ERROR_FOO -> "Foo" hash table */
122 uword *error_string_by_error_number;
124 u8 *connect_test_data;
125 pthread_t *client_thread_handles;
127 u32 client_bytes_received;
128 u8 test_return_packets;
136 volatile u32 n_clients_connected;
137 volatile u32 n_active_clients;
140 /** Flag that decides if socket, instead of svm, api is used to connect to
141 * vpp. If sock api is used, shm binary api is subsequently bootstrapped
142 * and all other messages are exchanged using shm IPC. */
146 svm_fifo_segment_main_t *segment_main;
149 echo_main_t echo_main;
154 #define NITER 4000000
157 const char test_srv_crt_rsa[] =
158 "-----BEGIN CERTIFICATE-----\r\n"
159 "MIID5zCCAs+gAwIBAgIJALeMYCEHrTtJMA0GCSqGSIb3DQEBCwUAMIGJMQswCQYD\r\n"
160 "VQQGEwJVUzELMAkGA1UECAwCQ0ExETAPBgNVBAcMCFNhbiBKb3NlMQ4wDAYDVQQK\r\n"
161 "DAVDaXNjbzEOMAwGA1UECwwFZmQuaW8xFjAUBgNVBAMMDXRlc3R0bHMuZmQuaW8x\r\n"
162 "IjAgBgkqhkiG9w0BCQEWE3ZwcC1kZXZAbGlzdHMuZmQuaW8wHhcNMTgwMzA1MjEx\r\n"
163 "NTEyWhcNMjgwMzAyMjExNTEyWjCBiTELMAkGA1UEBhMCVVMxCzAJBgNVBAgMAkNB\r\n"
164 "MREwDwYDVQQHDAhTYW4gSm9zZTEOMAwGA1UECgwFQ2lzY28xDjAMBgNVBAsMBWZk\r\n"
165 "LmlvMRYwFAYDVQQDDA10ZXN0dGxzLmZkLmlvMSIwIAYJKoZIhvcNAQkBFhN2cHAt\r\n"
166 "ZGV2QGxpc3RzLmZkLmlvMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA\r\n"
167 "4C1k8a1DuStgggqT4o09fP9sJ2dC54bxhS/Xk2VEfaIZ222WSo4X/syRVfVy9Yah\r\n"
168 "cpI1zJ/RDxaZSFhgA+nPZBrFMsrULkrdAOpOVj8eDEp9JuWdO2ODSoFnCvLxcYWB\r\n"
169 "Yc5kHryJpEaGJl1sFQSesnzMFty/59ta0stk0Fp8r5NhIjWvSovGzPo6Bhz+VS2c\r\n"
170 "ebIZh4x1t2hHaFcgm0qJoJ6DceReWCW8w+yOVovTolGGq+bpb2Hn7MnRSZ2K2NdL\r\n"
171 "+aLXpkZbS/AODP1FF2vTO1mYL290LO7/51vJmPXNKSDYMy5EvILr5/VqtjsFCwRL\r\n"
172 "Q4jcM/+GeHSAFWx4qIv0BwIDAQABo1AwTjAdBgNVHQ4EFgQUWa1SOB37xmT53tZQ\r\n"
173 "aXuLLhRI7U8wHwYDVR0jBBgwFoAUWa1SOB37xmT53tZQaXuLLhRI7U8wDAYDVR0T\r\n"
174 "BAUwAwEB/zANBgkqhkiG9w0BAQsFAAOCAQEAoUht13W4ya27NVzQuCMvqPWL3VM4\r\n"
175 "3xbPFk02FaGz/WupPu276zGlzJAZrbuDcQowwwU1Ni1Yygxl96s1c2M5rHDTrOKG\r\n"
176 "rK0hbkSFBo+i6I8u4HiiQ4rYmG0Hv6+sXn3of0HsbtDPGgWZoipPWDljPYEURu3e\r\n"
177 "3HRe/Dtsj9CakBoSDzs8ndWaBR+f4sM9Tk1cjD46Gq2T/qpSPXqKxEUXlzhdCAn4\r\n"
178 "twub17Bq2kykHpppCwPg5M+v30tHG/R2Go15MeFWbEJthFk3TZMjKL7UFs7fH+x2\r\n"
179 "wSonXb++jY+KmCb93C+soABBizE57g/KmiR2IxQ/LMjDik01RSUIaM0lLA==\r\n"
180 "-----END CERTIFICATE-----\r\n";
181 const u32 test_srv_crt_rsa_len = sizeof (test_srv_crt_rsa);
183 const char test_srv_key_rsa[] =
184 "-----BEGIN PRIVATE KEY-----\r\n"
185 "MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQDgLWTxrUO5K2CC\r\n"
186 "CpPijT18/2wnZ0LnhvGFL9eTZUR9ohnbbZZKjhf+zJFV9XL1hqFykjXMn9EPFplI\r\n"
187 "WGAD6c9kGsUyytQuSt0A6k5WPx4MSn0m5Z07Y4NKgWcK8vFxhYFhzmQevImkRoYm\r\n"
188 "XWwVBJ6yfMwW3L/n21rSy2TQWnyvk2EiNa9Ki8bM+joGHP5VLZx5shmHjHW3aEdo\r\n"
189 "VyCbSomgnoNx5F5YJbzD7I5Wi9OiUYar5ulvYefsydFJnYrY10v5otemRltL8A4M\r\n"
190 "/UUXa9M7WZgvb3Qs7v/nW8mY9c0pINgzLkS8guvn9Wq2OwULBEtDiNwz/4Z4dIAV\r\n"
191 "bHioi/QHAgMBAAECggEBAMzGipP8+oT166U+NlJXRFifFVN1DvdhG9PWnOxGL+c3\r\n"
192 "ILmBBC08WQzmHshPemBvR6DZkA1H23cV5JTiLWrFtC00CvhXsLRMrE5+uWotI6yE\r\n"
193 "iofybMroHvD6/X5R510UX9hQ6MHu5ShLR5VZ9zXHz5MpTmB/60jG5dLx+jgcwBK8\r\n"
194 "LuGv2YB/WCUwT9QJ3YU2eaingnXtz/MrFbkbltrqlnBdlD+kTtw6Yac9y1XuuQXc\r\n"
195 "BPeulLNDuPolJVWbUvDBZrpt2dXTgz8ws1sv+wCNE0xwQJsqW4Nx3QkpibUL9RUr\r\n"
196 "CVbKlNfa9lopT6nGKlgX69R/uH35yh9AOsfasro6w0ECgYEA82UJ8u/+ORah+0sF\r\n"
197 "Q0FfW5MTdi7OAUHOz16pUsGlaEv0ERrjZxmAkHA/VRwpvDBpx4alCv0Hc39PFLIk\r\n"
198 "nhSsM2BEuBkTAs6/GaoNAiBtQVE/hN7awNRWVmlieS0go3Y3dzaE9IUMyj8sPOFT\r\n"
199 "5JdJ6BM69PHKCkY3dKdnnfpFEuECgYEA68mRpteunF1mdZgXs+WrN+uLlRrQR20F\r\n"
200 "ZyMYiUCH2Dtn26EzA2moy7FipIIrQcX/j+KhYNGM3e7MU4LymIO29E18mn8JODnH\r\n"
201 "sQOXzBTsf8A4yIVMkcuQD3bfb0JiUGYUPOidTp2N7IJA7+6Yc3vQOyb74lnKnJoO\r\n"
202 "gougPT2wS+cCgYAn7muzb6xFsXDhyW0Tm6YJYBfRS9yAWEuVufINobeBZPSl2cN1\r\n"
203 "Jrnw+HlrfTNbrJWuJmjtZJXUXQ6cVp2rUbjutNyRV4vG6iRwEXYQ40EJdkr1gZpi\r\n"
204 "CHQhuShuuPih2MNAy7EEbM+sXrDjTBR3bFqzuHPzu7dp+BshCFX3lRfAAQKBgGQt\r\n"
205 "K5i7IhCFDjb/+3IPLgOAK7mZvsvZ4eXD33TQ2eZgtut1PXtBtNl17/b85uv293Fm\r\n"
206 "VDISVcsk3eLNS8zIiT6afUoWlxAwXEs0v5WRfjl4radkGvgGiJpJYvyeM67877RB\r\n"
207 "EDSKc/X8ESLfOB44iGvZUEMG6zJFscx9DgN25iQZAoGAbyd+JEWwdVH9/K3IH1t2\r\n"
208 "PBkZX17kNWv+iVM1WyFjbe++vfKZCrOJiyiqhDeEqgrP3AuNMlaaduC3VRC3G5oV\r\n"
209 "Mj1tlhDWQ/qhvKdCKNdIVQYDE75nw+FRWV8yYkHAnXYW3tNoweDIwixE0hkPR1bc\r\n"
210 "oEjPLVNtx8SOj/M4rhaPT3I=\r\n" "-----END PRIVATE KEY-----\r\n";
211 const u32 test_srv_key_rsa_len = sizeof (test_srv_key_rsa);
214 format_api_error (u8 * s, va_list * args)
216 echo_main_t *em = &echo_main;
217 i32 error = va_arg (*args, u32);
220 p = hash_get (em->error_string_by_error_number, -error);
223 s = format (s, "%s", p[0]);
225 s = format (s, "%d", error);
230 init_error_string_table (echo_main_t * em)
232 em->error_string_by_error_number = hash_create (0, sizeof (uword));
234 #define _(n,v,s) hash_set (em->error_string_by_error_number, -v, s);
235 foreach_vnet_api_error;
238 hash_set (em->error_string_by_error_number, 99, "Misc");
241 static void handle_mq_event (session_event_t * e);
244 wait_for_state_change (echo_main_t * em, connection_state_t state)
251 #define TIMEOUT 600.0
253 #define TIMEOUT 600.0
256 timeout = clib_time_now (&em->clib_time) + TIMEOUT;
258 while (clib_time_now (&em->clib_time) < timeout)
260 if (em->state == state)
262 if (em->state == STATE_FAILED)
264 if (em->time_to_stop == 1)
266 if (!em->our_event_queue)
269 if (svm_msg_q_sub (em->our_event_queue, &msg, SVM_Q_NOWAIT, 0))
271 e = svm_msg_q_msg_data (em->our_event_queue, &msg);
273 svm_msg_q_free_msg (em->our_event_queue, &msg);
275 clib_warning ("timeout waiting for state %d", state);
280 application_send_attach (echo_main_t * em)
282 vl_api_application_attach_t *bmp;
283 vl_api_application_tls_cert_add_t *cert_mp;
284 vl_api_application_tls_key_add_t *key_mp;
286 bmp = vl_msg_api_alloc (sizeof (*bmp));
287 memset (bmp, 0, sizeof (*bmp));
289 bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_ATTACH);
290 bmp->client_index = em->my_client_index;
291 bmp->context = ntohl (0xfeedface);
292 bmp->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_ACCEPT_REDIRECT;
293 bmp->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_ADD_SEGMENT;
294 bmp->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_USE_MQ_FOR_CTRL_MSGS;
295 bmp->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = 16;
296 bmp->options[APP_OPTIONS_RX_FIFO_SIZE] = em->fifo_size;
297 bmp->options[APP_OPTIONS_TX_FIFO_SIZE] = em->fifo_size;
298 bmp->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = 128 << 20;
299 bmp->options[APP_OPTIONS_SEGMENT_SIZE] = 256 << 20;
300 bmp->options[APP_OPTIONS_EVT_QUEUE_SIZE] = 256;
301 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & bmp);
303 cert_mp = vl_msg_api_alloc (sizeof (*cert_mp) + test_srv_crt_rsa_len);
304 memset (cert_mp, 0, sizeof (*cert_mp));
305 cert_mp->_vl_msg_id = ntohs (VL_API_APPLICATION_TLS_CERT_ADD);
306 cert_mp->client_index = em->my_client_index;
307 cert_mp->context = ntohl (0xfeedface);
308 cert_mp->cert_len = clib_host_to_net_u16 (test_srv_crt_rsa_len);
309 clib_memcpy (cert_mp->cert, test_srv_crt_rsa, test_srv_crt_rsa_len);
310 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & cert_mp);
312 key_mp = vl_msg_api_alloc (sizeof (*key_mp) + test_srv_key_rsa_len);
313 memset (key_mp, 0, sizeof (*key_mp) + test_srv_key_rsa_len);
314 key_mp->_vl_msg_id = ntohs (VL_API_APPLICATION_TLS_KEY_ADD);
315 key_mp->client_index = em->my_client_index;
316 key_mp->context = ntohl (0xfeedface);
317 key_mp->key_len = clib_host_to_net_u16 (test_srv_key_rsa_len);
318 clib_memcpy (key_mp->key, test_srv_key_rsa, test_srv_key_rsa_len);
319 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & key_mp);
323 application_attach (echo_main_t * em)
325 application_send_attach (em);
326 if (wait_for_state_change (em, STATE_ATTACHED))
328 clib_warning ("timeout waiting for STATE_ATTACHED");
335 application_detach (echo_main_t * em)
337 vl_api_application_detach_t *bmp;
338 bmp = vl_msg_api_alloc (sizeof (*bmp));
339 memset (bmp, 0, sizeof (*bmp));
341 bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_DETACH);
342 bmp->client_index = em->my_client_index;
343 bmp->context = ntohl (0xfeedface);
344 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & bmp);
346 DBG ("%s", "Sent detach");
350 memfd_segment_attach (void)
352 ssvm_private_t _ssvm = { 0 }, *ssvm = &_ssvm;
356 if ((error = vl_socket_client_recv_fd_msg (&ssvm->fd, 5)))
358 clib_error_report (error);
362 if ((rv = ssvm_slave_init_memfd (ssvm)))
369 fifo_segment_attach (char *name, u32 size, ssvm_segment_type_t type)
371 svm_fifo_segment_create_args_t _a, *a = &_a;
375 memset (a, 0, sizeof (*a));
376 a->segment_name = (char *) name;
377 a->segment_size = size;
378 a->segment_type = type;
380 if (type == SSVM_SEGMENT_MEMFD)
382 if ((error = vl_socket_client_recv_fd_msg (&a->memfd_fd, 5)))
384 clib_error_report (error);
389 if ((rv = svm_fifo_segment_attach (a)))
391 clib_warning ("svm_fifo_segment_attach ('%s') failed", name);
399 vl_api_application_attach_reply_t_handler (vl_api_application_attach_reply_t *
402 echo_main_t *em = &echo_main;
403 ssvm_segment_type_t seg_type;
407 clib_warning ("attach failed: %U", format_api_error,
408 clib_net_to_host_u32 (mp->retval));
409 em->state = STATE_FAILED;
413 if (mp->segment_name_length == 0)
415 clib_warning ("segment_name_length zero");
419 seg_type = em->use_sock_api ? SSVM_SEGMENT_MEMFD : SSVM_SEGMENT_SHM;
421 /* Attach to fifo segment */
422 if (fifo_segment_attach ((char *) mp->segment_name, mp->segment_size,
425 em->state = STATE_FAILED;
429 /* If we're using memfd segments, read and attach to event qs segment */
430 if (seg_type == SSVM_SEGMENT_MEMFD)
432 if (memfd_segment_attach ())
434 clib_warning ("failed to attach to evt q segment");
435 em->state = STATE_FAILED;
440 ASSERT (mp->app_event_queue_address);
441 em->our_event_queue = uword_to_pointer (mp->app_event_queue_address,
443 em->state = STATE_ATTACHED;
447 vl_api_application_detach_reply_t_handler (vl_api_application_detach_reply_t *
451 clib_warning ("detach returned with err: %d", mp->retval);
452 echo_main.state = STATE_DETACHED;
456 stop_signal (int signum)
458 echo_main_t *um = &echo_main;
460 um->time_to_stop = 1;
464 stats_signal (int signum)
466 echo_main_t *um = &echo_main;
468 um->time_to_print_stats = 1;
471 static clib_error_t *
472 setup_signal_handlers (void)
474 signal (SIGINT, stats_signal);
475 signal (SIGQUIT, stop_signal);
476 signal (SIGTERM, stop_signal);
482 vlib_cli_output (struct vlib_main_t *vm, char *fmt, ...)
484 clib_warning ("BUG");
488 connect_to_vpp (char *name)
490 echo_main_t *em = &echo_main;
491 api_main_t *am = &api_main;
493 if (em->use_sock_api)
495 if (vl_socket_client_connect ((char *) em->socket_name, name,
496 0 /* default rx, tx buffer */ ))
498 clib_warning ("socket connect failed");
502 if (vl_socket_client_init_shm (0))
504 clib_warning ("init shm api failed");
510 if (vl_client_connect_to_vlib ("/vpe-api", name, 32) < 0)
512 clib_warning ("shmem connect failed");
516 em->vl_input_queue = am->shmem_hdr->vl_input_queue;
517 em->my_client_index = am->my_client_index;
522 disconnect_from_vpp (echo_main_t * em)
524 if (em->use_sock_api)
525 vl_socket_client_disconnect ();
527 vl_client_disconnect_from_vlib ();
531 vl_api_map_another_segment_t_handler (vl_api_map_another_segment_t * mp)
533 svm_fifo_segment_create_args_t _a, *a = &_a;
536 memset (a, 0, sizeof (*a));
537 a->segment_name = (char *) mp->segment_name;
538 a->segment_size = mp->segment_size;
539 /* Attach to the segment vpp created */
540 rv = svm_fifo_segment_attach (a);
543 clib_warning ("svm_fifo_segment_attach ('%s') failed",
547 clib_warning ("Mapped new segment '%s' size %d", mp->segment_name,
552 session_print_stats (echo_main_t * em, session_t * session)
557 deltat = clib_time_now (&em->clib_time) - session->start;
558 bytes = em->i_am_master ? session->bytes_received : em->bytes_to_send;
559 fformat (stdout, "Finished in %.6f\n", deltat);
560 fformat (stdout, "%.4f Gbit/second\n", (bytes * 8.0) / deltat / 1e9);
564 test_recv_bytes (session_t * s, u8 * rx_buf, u32 n_read)
567 for (i = 0; i < n_read; i++)
569 if (rx_buf[i] != ((s->bytes_received + i) & 0xff))
571 clib_warning ("error at byte %lld, 0x%x not 0x%x",
572 s->bytes_received + i, rx_buf[i],
573 ((s->bytes_received + i) & 0xff));
579 recv_test_chunk (echo_main_t * em, session_t * s, u8 * rx_buf)
581 svm_fifo_t *rx_fifo = s->server_rx_fifo;
582 u32 n_read_now, n_to_read;
585 n_to_read = svm_fifo_max_dequeue (rx_fifo);
586 svm_fifo_unset_event (rx_fifo);
590 n_read_now = clib_min (vec_len (rx_buf), n_to_read);
591 n_read = svm_fifo_dequeue_nowait (rx_fifo, n_read_now, rx_buf);
595 if (n_read_now != n_read)
596 clib_warning ("huh?");
598 if (em->test_return_packets)
599 test_recv_bytes (s, rx_buf, n_read);
602 s->bytes_received += n_read;
603 s->bytes_to_receive -= n_read;
605 while (n_to_read > 0);
609 client_handle_fifo_event_rx (echo_main_t * em, session_event_t * e,
614 s = pool_elt_at_index (em->sessions, e->fifo->client_session_index);
615 recv_test_chunk (em, s, rx_buf);
619 send_test_chunk (echo_main_t * em, session_t * s)
621 u64 test_buf_len, bytes_this_chunk, test_buf_offset;
622 svm_fifo_t *tx_fifo = s->server_tx_fifo;
623 u8 *test_data = em->connect_test_data;
624 u32 enq_space, min_chunk = 16 << 10;
627 test_buf_len = vec_len (test_data);
628 test_buf_offset = s->bytes_sent % test_buf_len;
629 bytes_this_chunk = clib_min (test_buf_len - test_buf_offset,
631 enq_space = svm_fifo_max_enqueue (tx_fifo);
632 if (enq_space < clib_min (bytes_this_chunk, min_chunk))
635 bytes_this_chunk = clib_min (bytes_this_chunk, enq_space);
636 written = svm_fifo_enqueue_nowait (tx_fifo, bytes_this_chunk,
637 test_data + test_buf_offset);
641 s->bytes_to_send -= written;
642 s->bytes_sent += written;
644 if (svm_fifo_set_event (tx_fifo))
645 app_send_io_evt_to_vpp (s->vpp_evt_q, tx_fifo, FIFO_EVENT_APP_TX,
646 0 /* do wait for mutex */ );
651 * Rx/Tx polling thread per connection
654 client_thread_fn (void *arg)
656 echo_main_t *em = &echo_main;
657 static u8 *rx_buf = 0;
658 u32 session_index = *(u32 *) arg;
661 vec_validate (rx_buf, 1 << 20);
663 while (!em->time_to_stop && em->state != STATE_READY)
666 s = pool_elt_at_index (em->sessions, session_index);
667 while (!em->time_to_stop)
669 send_test_chunk (em, s);
670 recv_test_chunk (em, s, rx_buf);
671 if (!s->bytes_to_send && !s->bytes_to_receive)
675 DBG ("session %d done", session_index);
676 em->tx_total += s->bytes_sent;
677 em->rx_total += s->bytes_received;
678 em->n_active_clients--;
684 * Rx thread that handles all connections.
689 client_rx_thread_fn (void *arg)
691 session_event_t _e, *e = &_e;
692 echo_main_t *em = &echo_main;
693 static u8 *rx_buf = 0;
696 vec_validate (rx_buf, 1 << 20);
698 while (!em->time_to_stop && em->state != STATE_READY)
701 while (!em->time_to_stop)
703 svm_msg_q_sub (em->our_event_queue, &msg, SVM_Q_WAIT, 0);
704 e = svm_msg_q_msg_data (em->our_event_queue, &msg);
705 switch (e->event_type)
707 case FIFO_EVENT_APP_RX:
708 client_handle_fifo_event_rx (em, e, rx_buf);
711 clib_warning ("unknown event type %d", e->event_type);
714 svm_msg_q_free_msg (em->our_event_queue, &msg);
720 client_send_connect (echo_main_t * em)
722 vl_api_connect_uri_t *cmp;
723 cmp = vl_msg_api_alloc (sizeof (*cmp));
724 memset (cmp, 0, sizeof (*cmp));
726 cmp->_vl_msg_id = ntohs (VL_API_CONNECT_URI);
727 cmp->client_index = em->my_client_index;
728 cmp->context = ntohl (0xfeedface);
729 memcpy (cmp->uri, em->connect_uri, vec_len (em->connect_uri));
730 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & cmp);
734 client_send_disconnect (echo_main_t * em, session_t * s)
736 vl_api_disconnect_session_t *dmp;
737 dmp = vl_msg_api_alloc (sizeof (*dmp));
738 memset (dmp, 0, sizeof (*dmp));
739 dmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION);
740 dmp->client_index = em->my_client_index;
741 dmp->handle = s->vpp_session_handle;
742 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & dmp);
746 client_disconnect (echo_main_t * em, session_t * s)
748 client_send_disconnect (em, s);
749 pool_put (em->sessions, s);
750 memset (s, 0xfe, sizeof (*s));
755 session_accepted_handler (session_accepted_msg_t * mp)
757 app_session_evt_t _app_evt, *app_evt = &_app_evt;
758 session_accepted_reply_msg_t *rmp;
759 svm_fifo_t *rx_fifo, *tx_fifo;
760 echo_main_t *em = &echo_main;
762 static f64 start_time;
766 if (start_time == 0.0)
767 start_time = clib_time_now (&em->clib_time);
769 ip_str = format (0, "%U", format_ip46_address, &mp->ip, mp->is_ip4);
770 clib_warning ("Accepted session from: %s:%d", ip_str,
771 clib_net_to_host_u16 (mp->port));
773 /* Allocate local session and set it up */
774 pool_get (em->sessions, session);
775 session_index = session - em->sessions;
777 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
778 rx_fifo->client_session_index = session_index;
779 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
780 tx_fifo->client_session_index = session_index;
782 session->server_rx_fifo = rx_fifo;
783 session->server_tx_fifo = tx_fifo;
784 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
787 /* Add it to lookup table */
788 hash_set (em->session_index_by_vpp_handles, mp->handle, session_index);
790 em->state = STATE_READY;
793 if (pool_elts (em->sessions) && (pool_elts (em->sessions) % 20000) == 0)
795 f64 now = clib_time_now (&em->clib_time);
796 fformat (stdout, "%d active sessions in %.2f seconds, %.2f/sec...\n",
797 pool_elts (em->sessions), now - start_time,
798 (f64) pool_elts (em->sessions) / (now - start_time));
802 * Send accept reply to vpp
804 app_alloc_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt,
805 SESSION_CTRL_EVT_ACCEPTED_REPLY);
806 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
807 rmp->handle = mp->handle;
808 rmp->context = mp->context;
809 app_send_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt);
811 session->bytes_received = 0;
812 session->start = clib_time_now (&em->clib_time);
816 session_connected_handler (session_connected_msg_t * mp)
818 echo_main_t *em = &echo_main;
821 svm_fifo_t *rx_fifo, *tx_fifo;
826 clib_warning ("connection failed with code: %U", format_api_error,
827 clib_net_to_host_u32 (mp->retval));
828 em->state = STATE_FAILED;
836 pool_get (em->sessions, session);
837 memset (session, 0, sizeof (*session));
838 session_index = session - em->sessions;
840 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
841 rx_fifo->client_session_index = session_index;
842 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
843 tx_fifo->client_session_index = session_index;
845 session->server_rx_fifo = rx_fifo;
846 session->server_tx_fifo = tx_fifo;
847 session->vpp_session_handle = mp->handle;
848 session->start = clib_time_now (&em->clib_time);
849 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
852 hash_set (em->session_index_by_vpp_handles, mp->handle, session_index);
857 em->thread_args[em->n_clients_connected] = session_index;
858 rv = pthread_create (&em->client_thread_handles[em->n_clients_connected],
859 NULL /*attr */ , client_thread_fn,
860 (void *) &em->thread_args[em->n_clients_connected]);
863 clib_warning ("pthread_create returned %d", rv);
867 em->n_clients_connected += 1;
868 clib_warning ("session %u (0x%llx) connected with local ip %U port %d",
869 session_index, mp->handle, format_ip46_address, mp->lcl_ip,
870 mp->is_ip4, clib_net_to_host_u16 (mp->lcl_port));
874 session_disconnected_handler (session_disconnected_msg_t * mp)
876 app_session_evt_t _app_evt, *app_evt = &_app_evt;
877 session_disconnected_reply_msg_t *rmp;
878 echo_main_t *em = &echo_main;
879 session_t *session = 0;
883 p = hash_get (em->session_index_by_vpp_handles, mp->handle);
886 clib_warning ("couldn't find session key %llx", mp->handle);
890 session = pool_elt_at_index (em->sessions, p[0]);
891 hash_unset (em->session_index_by_vpp_handles, mp->handle);
892 pool_put (em->sessions, session);
894 app_alloc_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt,
895 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
896 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
898 rmp->handle = mp->handle;
899 rmp->context = mp->context;
900 app_send_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt);
902 session_print_stats (em, session);
906 session_reset_handler (session_reset_msg_t * mp)
908 app_session_evt_t _app_evt, *app_evt = &_app_evt;
909 echo_main_t *em = &echo_main;
910 session_reset_reply_msg_t *rmp;
911 session_t *session = 0;
915 p = hash_get (em->session_index_by_vpp_handles, mp->handle);
919 session = pool_elt_at_index (em->sessions, p[0]);
920 clib_warning ("got reset");
922 em->time_to_stop = 1;
926 clib_warning ("couldn't find session key %llx", mp->handle);
930 app_alloc_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt,
931 SESSION_CTRL_EVT_RESET_REPLY);
932 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
934 rmp->handle = mp->handle;
935 app_send_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt);
939 handle_mq_event (session_event_t * e)
941 switch (e->event_type)
943 case SESSION_CTRL_EVT_ACCEPTED:
944 session_accepted_handler ((session_accepted_msg_t *) e->data);
946 case SESSION_CTRL_EVT_CONNECTED:
947 session_connected_handler ((session_connected_msg_t *) e->data);
949 case SESSION_CTRL_EVT_DISCONNECTED:
950 session_disconnected_handler ((session_disconnected_msg_t *) e->data);
952 case SESSION_CTRL_EVT_RESET:
953 session_reset_handler ((session_reset_msg_t *) e->data);
956 clib_warning ("unhandled %u", e->event_type);
961 clients_run (echo_main_t * em)
963 f64 start_time, deltat, timeout = 100.0;
970 vec_validate (em->connect_test_data, 1024 * 1024 - 1);
971 for (i = 0; i < vec_len (em->connect_test_data); i++)
972 em->connect_test_data[i] = i & 0xff;
975 * Attach and connect the clients
977 if (application_attach (em))
980 for (i = 0; i < em->n_clients; i++)
981 client_send_connect (em);
983 start_time = clib_time_now (&em->clib_time);
984 while (em->n_clients_connected < em->n_clients
985 && (clib_time_now (&em->clib_time) - start_time < timeout)
986 && em->state != STATE_FAILED)
989 svm_msg_q_sub (em->our_event_queue, &msg, SVM_Q_WAIT, 0);
990 e = svm_msg_q_msg_data (em->our_event_queue, &msg);
992 svm_msg_q_free_msg (em->our_event_queue, &msg);
995 if (em->n_clients_connected != em->n_clients)
997 clib_warning ("failed to initialize all connections");
1002 * Initialize connections
1004 for (i = 0; i < em->n_clients; i++)
1006 s = pool_elt_at_index (em->sessions, i);
1007 s->bytes_to_send = em->bytes_to_send;
1009 s->bytes_to_receive = em->bytes_to_send;
1011 em->n_active_clients = em->n_clients_connected;
1014 * Wait for client threads to send the data
1016 start_time = clib_time_now (&em->clib_time);
1017 em->state = STATE_READY;
1018 while (em->n_active_clients)
1019 if (!svm_msg_q_is_empty (em->our_event_queue))
1021 if (svm_msg_q_sub (em->our_event_queue, &msg, SVM_Q_WAIT, 0))
1023 clib_warning ("svm msg q returned");
1026 e = svm_msg_q_msg_data (em->our_event_queue, &msg);
1027 if (e->event_type != FIFO_EVENT_APP_RX)
1028 handle_mq_event (e);
1029 svm_msg_q_free_msg (em->our_event_queue, &msg);
1032 for (i = 0; i < em->n_clients; i++)
1034 s = pool_elt_at_index (em->sessions, i);
1035 client_disconnect (em, s);
1041 deltat = clib_time_now (&em->clib_time) - start_time;
1042 fformat (stdout, "%lld bytes (%lld mbytes, %lld gbytes) in %.2f seconds\n",
1043 em->tx_total, em->tx_total / (1ULL << 20),
1044 em->tx_total / (1ULL << 30), deltat);
1045 fformat (stdout, "%.4f Gbit/second\n", (em->tx_total * 8.0) / deltat / 1e9);
1047 application_detach (em);
1051 vl_api_bind_uri_reply_t_handler (vl_api_bind_uri_reply_t * mp)
1053 echo_main_t *em = &echo_main;
1057 clib_warning ("bind failed: %U", format_api_error,
1058 clib_net_to_host_u32 (mp->retval));
1059 em->state = STATE_FAILED;
1063 em->state = STATE_READY;
1067 vl_api_unbind_uri_reply_t_handler (vl_api_unbind_uri_reply_t * mp)
1069 echo_main_t *em = &echo_main;
1071 if (mp->retval != 0)
1072 clib_warning ("returned %d", ntohl (mp->retval));
1074 em->state = STATE_START;
1078 format_ip4_address (u8 * s, va_list * args)
1080 u8 *a = va_arg (*args, u8 *);
1081 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
1085 format_ip6_address (u8 * s, va_list * args)
1087 ip6_address_t *a = va_arg (*args, ip6_address_t *);
1088 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
1090 i_max_n_zero = ARRAY_LEN (a->as_u16);
1092 i_first_zero = i_max_n_zero;
1094 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
1096 u32 is_zero = a->as_u16[i] == 0;
1097 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
1103 if ((!is_zero && n_zeros > max_n_zeros)
1104 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
1106 i_max_n_zero = i_first_zero;
1107 max_n_zeros = n_zeros;
1108 i_first_zero = ARRAY_LEN (a->as_u16);
1113 last_double_colon = 0;
1114 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
1116 if (i == i_max_n_zero && max_n_zeros > 1)
1118 s = format (s, "::");
1119 i += max_n_zeros - 1;
1120 last_double_colon = 1;
1124 s = format (s, "%s%x",
1125 (last_double_colon || i == 0) ? "" : ":",
1126 clib_net_to_host_u16 (a->as_u16[i]));
1127 last_double_colon = 0;
1134 /* Format an IP46 address. */
1136 format_ip46_address (u8 * s, va_list * args)
1138 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
1139 ip46_type_t type = va_arg (*args, ip46_type_t);
1145 is_ip4 = ip46_address_is_ip4 (ip46);
1156 format (s, "%U", format_ip4_address, &ip46->ip4) :
1157 format (s, "%U", format_ip6_address, &ip46->ip6);
1161 server_handle_fifo_event_rx (echo_main_t * em, session_event_t * e)
1163 svm_fifo_t *rx_fifo, *tx_fifo;
1167 u32 max_dequeue, offset, max_transfer, rx_buf_len;
1169 rx_buf_len = vec_len (em->rx_buf);
1171 session = pool_elt_at_index (em->sessions, rx_fifo->client_session_index);
1172 tx_fifo = session->server_tx_fifo;
1174 max_dequeue = svm_fifo_max_dequeue (rx_fifo);
1175 /* Allow enqueuing of a new event */
1176 svm_fifo_unset_event (rx_fifo);
1178 if (PREDICT_FALSE (!max_dequeue))
1181 /* Read the max_dequeue */
1184 max_transfer = clib_min (rx_buf_len, max_dequeue);
1185 n_read = svm_fifo_dequeue_nowait (rx_fifo, max_transfer, em->rx_buf);
1188 max_dequeue -= n_read;
1189 session->bytes_received += n_read;
1190 session->bytes_to_receive -= n_read;
1193 /* Reflect if a non-drop session */
1194 if (!em->no_return && n_read > 0)
1199 rv = svm_fifo_enqueue_nowait (tx_fifo, n_read,
1200 &em->rx_buf[offset]);
1207 while ((rv <= 0 || n_read > 0) && !em->time_to_stop);
1209 /* If event wasn't set, add one */
1210 if (svm_fifo_set_event (tx_fifo))
1211 app_send_io_evt_to_vpp (session->vpp_evt_q, tx_fifo,
1212 FIFO_EVENT_APP_TX, SVM_Q_WAIT);
1215 while ((n_read < 0 || max_dequeue > 0) && !em->time_to_stop);
1219 server_handle_event_queue (echo_main_t * em)
1221 svm_msg_q_msg_t msg;
1226 svm_msg_q_sub (em->our_event_queue, &msg, SVM_Q_WAIT, 0);
1227 e = svm_msg_q_msg_data (em->our_event_queue, &msg);
1228 switch (e->event_type)
1230 case FIFO_EVENT_APP_RX:
1231 server_handle_fifo_event_rx (em, e);
1234 handle_mq_event (e);
1237 if (PREDICT_FALSE (em->time_to_stop == 1))
1239 if (PREDICT_FALSE (em->time_to_print_stats == 1))
1241 em->time_to_print_stats = 0;
1242 fformat (stdout, "%d connections\n", pool_elts (em->sessions));
1244 svm_msg_q_free_msg (em->our_event_queue, &msg);
1249 server_send_listen (echo_main_t * em)
1251 vl_api_bind_uri_t *bmp;
1252 bmp = vl_msg_api_alloc (sizeof (*bmp));
1253 memset (bmp, 0, sizeof (*bmp));
1255 bmp->_vl_msg_id = ntohs (VL_API_BIND_URI);
1256 bmp->client_index = em->my_client_index;
1257 bmp->context = ntohl (0xfeedface);
1258 memcpy (bmp->uri, em->uri, vec_len (em->uri));
1259 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & bmp);
1263 server_listen (echo_main_t * em)
1265 server_send_listen (em);
1266 if (wait_for_state_change (em, STATE_READY))
1268 clib_warning ("timeout waiting for STATE_READY");
1275 server_send_unbind (echo_main_t * em)
1277 vl_api_unbind_uri_t *ump;
1279 ump = vl_msg_api_alloc (sizeof (*ump));
1280 memset (ump, 0, sizeof (*ump));
1282 ump->_vl_msg_id = ntohs (VL_API_UNBIND_URI);
1283 ump->client_index = em->my_client_index;
1284 memcpy (ump->uri, em->uri, vec_len (em->uri));
1285 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & ump);
1289 server_unbind (echo_main_t * em)
1291 server_send_unbind (em);
1292 if (wait_for_state_change (em, STATE_START))
1294 clib_warning ("timeout waiting for STATE_START");
1301 server_run (echo_main_t * em)
1306 /* $$$$ hack preallocation */
1307 for (i = 0; i < 200000; i++)
1309 pool_get (em->sessions, session);
1310 memset (session, 0, sizeof (*session));
1312 for (i = 0; i < 200000; i++)
1313 pool_put_index (em->sessions, i);
1315 if (application_attach (em))
1319 if (server_listen (em))
1322 /* Enter handle event loop */
1323 server_handle_event_queue (em);
1326 server_send_unbind (em);
1328 application_detach (em);
1330 fformat (stdout, "Test complete...\n");
1334 vl_api_disconnect_session_reply_t_handler (vl_api_disconnect_session_reply_t *
1337 echo_main_t *em = &echo_main;
1342 clib_warning ("vpp complained about disconnect: %d",
1343 ntohl (mp->retval));
1347 em->state = STATE_START;
1349 p = hash_get (em->session_index_by_vpp_handles, mp->handle);
1352 hash_unset (em->session_index_by_vpp_handles, mp->handle);
1356 clib_warning ("couldn't find session key %llx", mp->handle);
1361 vl_api_application_tls_cert_add_reply_t_handler
1362 (vl_api_application_tls_cert_add_reply_t * mp)
1365 clib_warning ("failed to add tls cert");
1369 vl_api_application_tls_key_add_reply_t_handler
1370 (vl_api_application_tls_key_add_reply_t * mp)
1373 clib_warning ("failed to add tls key");
1376 #define foreach_tcp_echo_msg \
1377 _(BIND_URI_REPLY, bind_uri_reply) \
1378 _(UNBIND_URI_REPLY, unbind_uri_reply) \
1379 _(DISCONNECT_SESSION_REPLY, disconnect_session_reply) \
1380 _(APPLICATION_ATTACH_REPLY, application_attach_reply) \
1381 _(APPLICATION_DETACH_REPLY, application_detach_reply) \
1382 _(MAP_ANOTHER_SEGMENT, map_another_segment) \
1383 _(APPLICATION_TLS_CERT_ADD_REPLY, application_tls_cert_add_reply) \
1384 _(APPLICATION_TLS_KEY_ADD_REPLY, application_tls_key_add_reply) \
1387 tcp_echo_api_hookup (echo_main_t * em)
1390 vl_msg_api_set_handlers(VL_API_##N, #n, \
1391 vl_api_##n##_t_handler, \
1393 vl_api_##n##_t_endian, \
1394 vl_api_##n##_t_print, \
1395 sizeof(vl_api_##n##_t), 1);
1396 foreach_tcp_echo_msg;
1401 main (int argc, char **argv)
1403 int i_am_server = 1, test_return_packets = 0;
1404 echo_main_t *em = &echo_main;
1405 unformat_input_t _argv, *a = &_argv;
1408 u8 *bind_uri = (u8 *) "tcp://0.0.0.0/1234";
1409 u8 *connect_uri = (u8 *) "tcp://6.0.1.1/1234";
1410 u64 bytes_to_send = 64 << 10, mbytes;
1414 clib_mem_init_thread_safe (0, 256 << 20);
1416 memset (em, 0, sizeof (*em));
1417 em->session_index_by_vpp_handles = hash_create (0, sizeof (uword));
1418 em->my_pid = getpid ();
1419 em->configured_segment_size = 1 << 20;
1420 em->socket_name = 0;
1421 em->use_sock_api = 1;
1422 em->fifo_size = 64 << 10;
1425 clib_time_init (&em->clib_time);
1426 init_error_string_table (em);
1427 svm_fifo_segment_main_init (0x200000000ULL, 20);
1428 unformat_init_command_line (a, argv);
1430 while (unformat_check_input (a) != UNFORMAT_END_OF_INPUT)
1432 if (unformat (a, "chroot prefix %s", &chroot_prefix))
1434 vl_set_memory_root_path ((char *) chroot_prefix);
1436 else if (unformat (a, "uri %s", &uri))
1438 else if (unformat (a, "segment-size %dM", &tmp))
1439 em->configured_segment_size = tmp << 20;
1440 else if (unformat (a, "segment-size %dG", &tmp))
1441 em->configured_segment_size = tmp << 30;
1442 else if (unformat (a, "server"))
1444 else if (unformat (a, "client"))
1446 else if (unformat (a, "no-return"))
1448 else if (unformat (a, "test"))
1449 test_return_packets = 1;
1450 else if (unformat (a, "mbytes %lld", &mbytes))
1452 bytes_to_send = mbytes << 20;
1454 else if (unformat (a, "gbytes %lld", &mbytes))
1456 bytes_to_send = mbytes << 30;
1458 else if (unformat (a, "socket-name %s", &em->socket_name))
1460 else if (unformat (a, "use-svm-api"))
1461 em->use_sock_api = 0;
1462 else if (unformat (a, "fifo-size %d", &tmp))
1463 em->fifo_size = tmp << 10;
1464 else if (unformat (a, "nclients %d", &em->n_clients))
1468 fformat (stderr, "%s: usage [master|slave]\n", argv[0]);
1473 if (!em->socket_name)
1474 em->socket_name = format (0, "%s%c", API_SOCKET_FILE, 0);
1478 em->uri = format (0, "%s%c", uri, 0);
1479 em->connect_uri = format (0, "%s%c", uri, 0);
1483 em->uri = format (0, "%s%c", bind_uri, 0);
1484 em->connect_uri = format (0, "%s%c", connect_uri, 0);
1487 em->i_am_master = i_am_server;
1488 em->segment_main = &svm_fifo_segment_main;
1489 em->test_return_packets = test_return_packets;
1490 em->bytes_to_send = bytes_to_send;
1491 em->time_to_stop = 0;
1492 vec_validate (em->rx_buf, 128 << 10);
1493 vec_validate (em->client_thread_handles, em->n_clients - 1);
1494 vec_validate (em->thread_args, em->n_clients - 1);
1496 setup_signal_handlers ();
1497 tcp_echo_api_hookup (em);
1499 app_name = i_am_server ? "tcp_echo_server" : "tcp_echo_client";
1500 if (connect_to_vpp (app_name) < 0)
1503 fformat (stderr, "Couldn't connect to vpe, exiting...\n");
1507 if (i_am_server == 0)
1512 /* Make sure detach finishes */
1513 wait_for_state_change (em, STATE_DETACHED);
1515 disconnect_from_vpp (em);
1520 * fd.io coding-style-patch-verification: ON
1523 * eval: (c-set-style "gnu")