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 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
49 #define _(type, name) type name;
50 foreach_app_session_field
52 u64 vpp_session_handle;
55 volatile u64 bytes_received;
56 volatile u64 bytes_to_receive;
74 svm_queue_t *vl_input_queue;
76 /* API client handle */
79 /* The URI we're playing with */
83 echo_session_t *sessions;
85 /* Hash table for disconnect processing */
86 uword *session_index_by_vpp_handles;
88 /* intermediate rx buffer */
91 /* URI for slave's connect */
94 u32 connected_session_index;
98 /* drop all packets */
101 /* Our event queue */
102 svm_msg_q_t *our_event_queue;
108 /* For deadman timers */
109 clib_time_t clib_time;
111 /* State of the connection, shared between msg RX thread and main thread */
112 volatile connection_state_t state;
114 /* Signal variables */
115 volatile int time_to_stop;
116 volatile int time_to_print_stats;
118 u32 configured_segment_size;
120 /* VNET_API_ERROR_FOO -> "Foo" hash table */
121 uword *error_string_by_error_number;
123 u8 *connect_test_data;
124 pthread_t *client_thread_handles;
126 u32 client_bytes_received;
127 u8 test_return_packets;
135 volatile u32 n_clients_connected;
136 volatile u32 n_active_clients;
139 /** Flag that decides if socket, instead of svm, api is used to connect to
140 * vpp. If sock api is used, shm binary api is subsequently bootstrapped
141 * and all other messages are exchanged using shm IPC. */
144 svm_fifo_segment_main_t segment_main;
147 echo_main_t echo_main;
152 #define NITER 4000000
156 format_api_error (u8 * s, va_list * args)
158 echo_main_t *em = &echo_main;
159 i32 error = va_arg (*args, u32);
162 p = hash_get (em->error_string_by_error_number, -error);
165 s = format (s, "%s", p[0]);
167 s = format (s, "%d", error);
172 init_error_string_table (echo_main_t * em)
174 em->error_string_by_error_number = hash_create (0, sizeof (uword));
176 #define _(n,v,s) hash_set (em->error_string_by_error_number, -v, s);
177 foreach_vnet_api_error;
180 hash_set (em->error_string_by_error_number, 99, "Misc");
183 static void handle_mq_event (session_event_t * e);
186 wait_for_state_change (echo_main_t * em, connection_state_t state)
193 #define TIMEOUT 600.0
195 #define TIMEOUT 600.0
198 timeout = clib_time_now (&em->clib_time) + TIMEOUT;
200 while (clib_time_now (&em->clib_time) < timeout)
202 if (em->state == state)
204 if (em->state == STATE_FAILED)
206 if (em->time_to_stop == 1)
208 if (!em->our_event_queue || em->state < STATE_ATTACHED)
211 if (svm_msg_q_sub (em->our_event_queue, &msg, SVM_Q_NOWAIT, 0))
213 e = svm_msg_q_msg_data (em->our_event_queue, &msg);
215 svm_msg_q_free_msg (em->our_event_queue, &msg);
217 clib_warning ("timeout waiting for state %d", state);
222 application_send_attach (echo_main_t * em)
224 vl_api_application_attach_t *bmp;
225 vl_api_application_tls_cert_add_t *cert_mp;
226 vl_api_application_tls_key_add_t *key_mp;
228 bmp = vl_msg_api_alloc (sizeof (*bmp));
229 clib_memset (bmp, 0, sizeof (*bmp));
231 bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_ATTACH);
232 bmp->client_index = em->my_client_index;
233 bmp->context = ntohl (0xfeedface);
234 bmp->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_ACCEPT_REDIRECT;
235 bmp->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_ADD_SEGMENT;
236 bmp->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = 16;
237 bmp->options[APP_OPTIONS_RX_FIFO_SIZE] = em->fifo_size;
238 bmp->options[APP_OPTIONS_TX_FIFO_SIZE] = em->fifo_size;
239 bmp->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = 128 << 20;
240 bmp->options[APP_OPTIONS_SEGMENT_SIZE] = 256 << 20;
241 bmp->options[APP_OPTIONS_EVT_QUEUE_SIZE] = 256;
242 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & bmp);
244 cert_mp = vl_msg_api_alloc (sizeof (*cert_mp) + test_srv_crt_rsa_len);
245 clib_memset (cert_mp, 0, sizeof (*cert_mp));
246 cert_mp->_vl_msg_id = ntohs (VL_API_APPLICATION_TLS_CERT_ADD);
247 cert_mp->client_index = em->my_client_index;
248 cert_mp->context = ntohl (0xfeedface);
249 cert_mp->cert_len = clib_host_to_net_u16 (test_srv_crt_rsa_len);
250 clib_memcpy_fast (cert_mp->cert, test_srv_crt_rsa, test_srv_crt_rsa_len);
251 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & cert_mp);
253 key_mp = vl_msg_api_alloc (sizeof (*key_mp) + test_srv_key_rsa_len);
254 clib_memset (key_mp, 0, sizeof (*key_mp) + test_srv_key_rsa_len);
255 key_mp->_vl_msg_id = ntohs (VL_API_APPLICATION_TLS_KEY_ADD);
256 key_mp->client_index = em->my_client_index;
257 key_mp->context = ntohl (0xfeedface);
258 key_mp->key_len = clib_host_to_net_u16 (test_srv_key_rsa_len);
259 clib_memcpy_fast (key_mp->key, test_srv_key_rsa, test_srv_key_rsa_len);
260 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & key_mp);
264 application_attach (echo_main_t * em)
266 application_send_attach (em);
267 if (wait_for_state_change (em, STATE_ATTACHED))
269 clib_warning ("timeout waiting for STATE_ATTACHED");
276 application_detach (echo_main_t * em)
278 vl_api_application_detach_t *bmp;
279 bmp = vl_msg_api_alloc (sizeof (*bmp));
280 clib_memset (bmp, 0, sizeof (*bmp));
282 bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_DETACH);
283 bmp->client_index = em->my_client_index;
284 bmp->context = ntohl (0xfeedface);
285 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & bmp);
287 DBG ("%s", "Sent detach");
291 ssvm_segment_attach (char *name, ssvm_segment_type_t type, int fd)
293 svm_fifo_segment_create_args_t _a, *a = &_a;
294 svm_fifo_segment_main_t *sm = &echo_main.segment_main;
297 clib_memset (a, 0, sizeof (*a));
298 a->segment_name = (char *) name;
299 a->segment_type = type;
301 if (type == SSVM_SEGMENT_MEMFD)
304 if ((rv = svm_fifo_segment_attach (sm, a)))
306 clib_warning ("svm_fifo_segment_attach ('%s') failed", name);
310 vec_reset_length (a->new_segment_indices);
315 vl_api_application_attach_reply_t_handler (vl_api_application_attach_reply_t *
318 echo_main_t *em = &echo_main;
324 clib_warning ("attach failed: %U", format_api_error,
325 clib_net_to_host_u32 (mp->retval));
329 if (mp->segment_name_length == 0)
331 clib_warning ("segment_name_length zero");
335 ASSERT (mp->app_event_queue_address);
336 em->our_event_queue = uword_to_pointer (mp->app_event_queue_address,
341 vec_validate (fds, mp->n_fds);
342 vl_socket_client_recv_fd_msg (fds, mp->n_fds, 5);
344 if (mp->fd_flags & SESSION_FD_F_VPP_MQ_SEGMENT)
345 if (ssvm_segment_attach (0, SSVM_SEGMENT_MEMFD, fds[n_fds++]))
348 if (mp->fd_flags & SESSION_FD_F_MEMFD_SEGMENT)
349 if (ssvm_segment_attach ((char *) mp->segment_name,
350 SSVM_SEGMENT_MEMFD, fds[n_fds++]))
353 if (mp->fd_flags & SESSION_FD_F_MQ_EVENTFD)
354 svm_msg_q_set_consumer_eventfd (em->our_event_queue, fds[n_fds++]);
360 if (ssvm_segment_attach ((char *) mp->segment_name, SSVM_SEGMENT_SHM,
365 em->state = STATE_ATTACHED;
368 em->state = STATE_FAILED;
373 vl_api_application_detach_reply_t_handler (vl_api_application_detach_reply_t *
377 clib_warning ("detach returned with err: %d", mp->retval);
378 echo_main.state = STATE_DETACHED;
382 stop_signal (int signum)
384 echo_main_t *um = &echo_main;
386 um->time_to_stop = 1;
390 stats_signal (int signum)
392 echo_main_t *um = &echo_main;
394 um->time_to_print_stats = 1;
397 static clib_error_t *
398 setup_signal_handlers (void)
400 signal (SIGINT, stats_signal);
401 signal (SIGQUIT, stop_signal);
402 signal (SIGTERM, stop_signal);
408 vlib_cli_output (struct vlib_main_t *vm, char *fmt, ...)
410 clib_warning ("BUG");
414 connect_to_vpp (char *name)
416 echo_main_t *em = &echo_main;
417 api_main_t *am = &api_main;
419 if (em->use_sock_api)
421 if (vl_socket_client_connect ((char *) em->socket_name, name,
422 0 /* default rx, tx buffer */ ))
424 clib_warning ("socket connect failed");
428 if (vl_socket_client_init_shm (0, 1 /* want_pthread */ ))
430 clib_warning ("init shm api failed");
436 if (vl_client_connect_to_vlib ("/vpe-api", name, 32) < 0)
438 clib_warning ("shmem connect failed");
442 em->vl_input_queue = am->shmem_hdr->vl_input_queue;
443 em->my_client_index = am->my_client_index;
448 disconnect_from_vpp (echo_main_t * em)
450 if (em->use_sock_api)
451 vl_socket_client_disconnect ();
453 vl_client_disconnect_from_vlib ();
457 vl_api_map_another_segment_t_handler (vl_api_map_another_segment_t * mp)
459 svm_fifo_segment_main_t *sm = &echo_main.segment_main;
460 svm_fifo_segment_create_args_t _a, *a = &_a;
463 clib_memset (a, 0, sizeof (*a));
464 a->segment_name = (char *) mp->segment_name;
465 a->segment_size = mp->segment_size;
466 /* Attach to the segment vpp created */
467 rv = svm_fifo_segment_attach (sm, a);
470 clib_warning ("svm_fifo_segment_attach ('%s') failed",
474 clib_warning ("Mapped new segment '%s' size %d", mp->segment_name,
479 session_print_stats (echo_main_t * em, echo_session_t * session)
484 deltat = clib_time_now (&em->clib_time) - session->start;
485 bytes = em->i_am_master ? session->bytes_received : em->bytes_to_send;
486 fformat (stdout, "Finished in %.6f\n", deltat);
487 fformat (stdout, "%.4f Gbit/second\n", (bytes * 8.0) / deltat / 1e9);
491 test_recv_bytes (echo_session_t * s, u8 * rx_buf, u32 n_read)
494 for (i = 0; i < n_read; i++)
496 if (rx_buf[i] != ((s->bytes_received + i) & 0xff))
498 clib_warning ("error at byte %lld, 0x%x not 0x%x",
499 s->bytes_received + i, rx_buf[i],
500 ((s->bytes_received + i) & 0xff));
506 recv_data_chunk (echo_main_t * em, echo_session_t * s, u8 * rx_buf)
508 int n_to_read, n_read;
510 n_to_read = svm_fifo_max_dequeue (s->rx_fifo);
516 n_read = app_recv_stream ((app_session_t *) s, rx_buf,
521 if (em->test_return_packets)
522 test_recv_bytes (s, rx_buf, n_read);
526 s->bytes_received += n_read;
527 s->bytes_to_receive -= n_read;
532 while (n_to_read > 0);
536 client_handle_rx (echo_main_t * em, session_event_t * e, u8 * rx_buf)
540 s = pool_elt_at_index (em->sessions, e->fifo->client_session_index);
541 recv_data_chunk (em, s, rx_buf);
545 send_data_chunk (echo_main_t * em, echo_session_t * s)
547 u64 test_buf_len, bytes_this_chunk, test_buf_offset;
548 u8 *test_data = em->connect_test_data;
551 test_buf_len = vec_len (test_data);
552 test_buf_offset = s->bytes_sent % test_buf_len;
553 bytes_this_chunk = clib_min (test_buf_len - test_buf_offset,
556 n_sent = app_send_stream ((app_session_t *) s, test_data + test_buf_offset,
557 bytes_this_chunk, 0);
561 s->bytes_to_send -= n_sent;
562 s->bytes_sent += n_sent;
567 * Rx/Tx polling thread per connection
570 client_thread_fn (void *arg)
572 echo_main_t *em = &echo_main;
573 static u8 *rx_buf = 0;
574 u32 session_index = *(u32 *) arg;
577 vec_validate (rx_buf, 1 << 20);
579 while (!em->time_to_stop && em->state != STATE_READY)
582 s = pool_elt_at_index (em->sessions, session_index);
583 while (!em->time_to_stop)
585 send_data_chunk (em, s);
586 recv_data_chunk (em, s, rx_buf);
587 if (!s->bytes_to_send && !s->bytes_to_receive)
591 DBG ("session %d done", session_index);
592 em->tx_total += s->bytes_sent;
593 em->rx_total += s->bytes_received;
594 em->n_active_clients--;
600 * Rx thread that handles all connections.
605 client_rx_thread_fn (void *arg)
607 session_event_t _e, *e = &_e;
608 echo_main_t *em = &echo_main;
609 static u8 *rx_buf = 0;
612 vec_validate (rx_buf, 1 << 20);
614 while (!em->time_to_stop && em->state != STATE_READY)
617 while (!em->time_to_stop)
619 svm_msg_q_sub (em->our_event_queue, &msg, SVM_Q_WAIT, 0);
620 e = svm_msg_q_msg_data (em->our_event_queue, &msg);
621 switch (e->event_type)
623 case FIFO_EVENT_APP_RX:
624 client_handle_rx (em, e, rx_buf);
627 clib_warning ("unknown event type %d", e->event_type);
630 svm_msg_q_free_msg (em->our_event_queue, &msg);
636 client_send_connect (echo_main_t * em)
638 vl_api_connect_uri_t *cmp;
639 cmp = vl_msg_api_alloc (sizeof (*cmp));
640 clib_memset (cmp, 0, sizeof (*cmp));
642 cmp->_vl_msg_id = ntohs (VL_API_CONNECT_URI);
643 cmp->client_index = em->my_client_index;
644 cmp->context = ntohl (0xfeedface);
645 memcpy (cmp->uri, em->connect_uri, vec_len (em->connect_uri));
646 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & cmp);
650 client_send_disconnect (echo_main_t * em, echo_session_t * s)
652 vl_api_disconnect_session_t *dmp;
653 dmp = vl_msg_api_alloc (sizeof (*dmp));
654 clib_memset (dmp, 0, sizeof (*dmp));
655 dmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION);
656 dmp->client_index = em->my_client_index;
657 dmp->handle = s->vpp_session_handle;
658 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & dmp);
662 client_disconnect (echo_main_t * em, echo_session_t * s)
664 client_send_disconnect (em, s);
665 pool_put (em->sessions, s);
666 clib_memset (s, 0xfe, sizeof (*s));
671 session_bound_handler (session_bound_msg_t * mp)
673 echo_main_t *em = &echo_main;
677 clib_warning ("bind failed: %U", format_api_error,
678 clib_net_to_host_u32 (mp->retval));
679 em->state = STATE_FAILED;
683 clib_warning ("listening on %U:%u", format_ip46_address, mp->lcl_ip,
684 mp->lcl_is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6, mp->lcl_port);
685 em->state = STATE_READY;
689 session_accepted_handler (session_accepted_msg_t * mp)
691 app_session_evt_t _app_evt, *app_evt = &_app_evt;
692 session_accepted_reply_msg_t *rmp;
693 svm_fifo_t *rx_fifo, *tx_fifo;
694 echo_main_t *em = &echo_main;
695 echo_session_t *session;
696 static f64 start_time;
700 if (start_time == 0.0)
701 start_time = clib_time_now (&em->clib_time);
703 ip_str = format (0, "%U", format_ip46_address, &mp->ip, mp->is_ip4);
704 clib_warning ("Accepted session from: %s:%d", ip_str,
705 clib_net_to_host_u16 (mp->port));
707 /* Allocate local session and set it up */
708 pool_get (em->sessions, session);
709 session_index = session - em->sessions;
711 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
712 rx_fifo->client_session_index = session_index;
713 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
714 tx_fifo->client_session_index = session_index;
716 session->rx_fifo = rx_fifo;
717 session->tx_fifo = tx_fifo;
718 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
721 /* Add it to lookup table */
722 hash_set (em->session_index_by_vpp_handles, mp->handle, session_index);
724 em->state = STATE_READY;
727 if (pool_elts (em->sessions) && (pool_elts (em->sessions) % 20000) == 0)
729 f64 now = clib_time_now (&em->clib_time);
730 fformat (stdout, "%d active sessions in %.2f seconds, %.2f/sec...\n",
731 pool_elts (em->sessions), now - start_time,
732 (f64) pool_elts (em->sessions) / (now - start_time));
736 * Send accept reply to vpp
738 app_alloc_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt,
739 SESSION_CTRL_EVT_ACCEPTED_REPLY);
740 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
741 rmp->handle = mp->handle;
742 rmp->context = mp->context;
743 app_send_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt);
745 session->bytes_received = 0;
746 session->start = clib_time_now (&em->clib_time);
750 session_connected_handler (session_connected_msg_t * mp)
752 echo_main_t *em = &echo_main;
753 echo_session_t *session;
755 svm_fifo_t *rx_fifo, *tx_fifo;
760 clib_warning ("connection failed with code: %U", format_api_error,
761 clib_net_to_host_u32 (mp->retval));
762 em->state = STATE_FAILED;
770 pool_get (em->sessions, session);
771 clib_memset (session, 0, sizeof (*session));
772 session_index = session - em->sessions;
774 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
775 rx_fifo->client_session_index = session_index;
776 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
777 tx_fifo->client_session_index = session_index;
779 session->rx_fifo = rx_fifo;
780 session->tx_fifo = tx_fifo;
781 session->vpp_session_handle = mp->handle;
782 session->start = clib_time_now (&em->clib_time);
783 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
786 hash_set (em->session_index_by_vpp_handles, mp->handle, session_index);
791 em->thread_args[em->n_clients_connected] = session_index;
792 rv = pthread_create (&em->client_thread_handles[em->n_clients_connected],
793 NULL /*attr */ , client_thread_fn,
794 (void *) &em->thread_args[em->n_clients_connected]);
797 clib_warning ("pthread_create returned %d", rv);
801 em->n_clients_connected += 1;
802 clib_warning ("session %u (0x%llx) connected with local ip %U port %d",
803 session_index, mp->handle, format_ip46_address, mp->lcl_ip,
804 mp->is_ip4, clib_net_to_host_u16 (mp->lcl_port));
808 session_disconnected_handler (session_disconnected_msg_t * mp)
810 app_session_evt_t _app_evt, *app_evt = &_app_evt;
811 session_disconnected_reply_msg_t *rmp;
812 echo_main_t *em = &echo_main;
813 echo_session_t *session = 0;
817 p = hash_get (em->session_index_by_vpp_handles, mp->handle);
820 clib_warning ("couldn't find session key %llx", mp->handle);
824 session = pool_elt_at_index (em->sessions, p[0]);
825 hash_unset (em->session_index_by_vpp_handles, mp->handle);
826 pool_put (em->sessions, session);
828 app_alloc_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt,
829 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
830 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
832 rmp->handle = mp->handle;
833 rmp->context = mp->context;
834 app_send_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt);
836 session_print_stats (em, session);
840 session_reset_handler (session_reset_msg_t * mp)
842 app_session_evt_t _app_evt, *app_evt = &_app_evt;
843 echo_main_t *em = &echo_main;
844 session_reset_reply_msg_t *rmp;
845 echo_session_t *session = 0;
849 p = hash_get (em->session_index_by_vpp_handles, mp->handle);
853 session = pool_elt_at_index (em->sessions, p[0]);
854 clib_warning ("got reset");
856 em->time_to_stop = 1;
860 clib_warning ("couldn't find session key %llx", mp->handle);
864 app_alloc_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt,
865 SESSION_CTRL_EVT_RESET_REPLY);
866 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
868 rmp->handle = mp->handle;
869 app_send_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt);
873 handle_mq_event (session_event_t * e)
875 switch (e->event_type)
877 case SESSION_CTRL_EVT_BOUND:
878 session_bound_handler ((session_bound_msg_t *) e->data);
880 case SESSION_CTRL_EVT_ACCEPTED:
881 session_accepted_handler ((session_accepted_msg_t *) e->data);
883 case SESSION_CTRL_EVT_CONNECTED:
884 session_connected_handler ((session_connected_msg_t *) e->data);
886 case SESSION_CTRL_EVT_DISCONNECTED:
887 session_disconnected_handler ((session_disconnected_msg_t *) e->data);
889 case SESSION_CTRL_EVT_RESET:
890 session_reset_handler ((session_reset_msg_t *) e->data);
893 clib_warning ("unhandled %u", e->event_type);
898 clients_run (echo_main_t * em)
900 f64 start_time, deltat, timeout = 100.0;
907 vec_validate (em->connect_test_data, 1024 * 1024 - 1);
908 for (i = 0; i < vec_len (em->connect_test_data); i++)
909 em->connect_test_data[i] = i & 0xff;
912 * Attach and connect the clients
914 if (application_attach (em))
917 for (i = 0; i < em->n_clients; i++)
918 client_send_connect (em);
920 start_time = clib_time_now (&em->clib_time);
921 while (em->n_clients_connected < em->n_clients
922 && (clib_time_now (&em->clib_time) - start_time < timeout)
923 && em->state != STATE_FAILED)
926 svm_msg_q_sub (em->our_event_queue, &msg, SVM_Q_WAIT, 0);
927 e = svm_msg_q_msg_data (em->our_event_queue, &msg);
929 svm_msg_q_free_msg (em->our_event_queue, &msg);
932 if (em->n_clients_connected != em->n_clients)
934 clib_warning ("failed to initialize all connections");
939 * Initialize connections
941 for (i = 0; i < em->n_clients; i++)
943 s = pool_elt_at_index (em->sessions, i);
944 s->bytes_to_send = em->bytes_to_send;
946 s->bytes_to_receive = em->bytes_to_send;
948 em->n_active_clients = em->n_clients_connected;
951 * Wait for client threads to send the data
953 start_time = clib_time_now (&em->clib_time);
954 em->state = STATE_READY;
955 while (em->n_active_clients)
956 if (!svm_msg_q_is_empty (em->our_event_queue))
958 if (svm_msg_q_sub (em->our_event_queue, &msg, SVM_Q_WAIT, 0))
960 clib_warning ("svm msg q returned");
963 e = svm_msg_q_msg_data (em->our_event_queue, &msg);
964 if (e->event_type != FIFO_EVENT_APP_RX)
966 svm_msg_q_free_msg (em->our_event_queue, &msg);
969 for (i = 0; i < em->n_clients; i++)
971 s = pool_elt_at_index (em->sessions, i);
972 client_disconnect (em, s);
978 deltat = clib_time_now (&em->clib_time) - start_time;
979 fformat (stdout, "%lld bytes (%lld mbytes, %lld gbytes) in %.2f seconds\n",
980 em->tx_total, em->tx_total / (1ULL << 20),
981 em->tx_total / (1ULL << 30), deltat);
982 fformat (stdout, "%.4f Gbit/second\n", (em->tx_total * 8.0) / deltat / 1e9);
984 application_detach (em);
988 vl_api_bind_uri_reply_t_handler (vl_api_bind_uri_reply_t * mp)
990 echo_main_t *em = &echo_main;
994 clib_warning ("bind failed: %U", format_api_error,
995 clib_net_to_host_u32 (mp->retval));
996 em->state = STATE_FAILED;
1000 em->state = STATE_READY;
1004 vl_api_unbind_uri_reply_t_handler (vl_api_unbind_uri_reply_t * mp)
1006 echo_main_t *em = &echo_main;
1008 if (mp->retval != 0)
1009 clib_warning ("returned %d", ntohl (mp->retval));
1011 em->state = STATE_START;
1015 format_ip4_address (u8 * s, va_list * args)
1017 u8 *a = va_arg (*args, u8 *);
1018 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
1022 format_ip6_address (u8 * s, va_list * args)
1024 ip6_address_t *a = va_arg (*args, ip6_address_t *);
1025 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
1027 i_max_n_zero = ARRAY_LEN (a->as_u16);
1029 i_first_zero = i_max_n_zero;
1031 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
1033 u32 is_zero = a->as_u16[i] == 0;
1034 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
1040 if ((!is_zero && n_zeros > max_n_zeros)
1041 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
1043 i_max_n_zero = i_first_zero;
1044 max_n_zeros = n_zeros;
1045 i_first_zero = ARRAY_LEN (a->as_u16);
1050 last_double_colon = 0;
1051 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
1053 if (i == i_max_n_zero && max_n_zeros > 1)
1055 s = format (s, "::");
1056 i += max_n_zeros - 1;
1057 last_double_colon = 1;
1061 s = format (s, "%s%x",
1062 (last_double_colon || i == 0) ? "" : ":",
1063 clib_net_to_host_u16 (a->as_u16[i]));
1064 last_double_colon = 0;
1071 /* Format an IP46 address. */
1073 format_ip46_address (u8 * s, va_list * args)
1075 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
1076 ip46_type_t type = va_arg (*args, ip46_type_t);
1082 is_ip4 = ip46_address_is_ip4 (ip46);
1093 format (s, "%U", format_ip4_address, &ip46->ip4) :
1094 format (s, "%U", format_ip6_address, &ip46->ip6);
1098 server_handle_rx (echo_main_t * em, session_event_t * e)
1100 int n_read, max_dequeue, n_sent;
1101 u32 offset, to_dequeue;
1104 s = pool_elt_at_index (em->sessions, e->fifo->client_session_index);
1106 /* Clear event only once. Otherwise, if we do it in the loop by calling
1107 * app_recv_stream, we may end up with a lot of unhandled rx events on the
1109 svm_fifo_unset_event (s->rx_fifo);
1111 max_dequeue = svm_fifo_max_dequeue (s->rx_fifo);
1112 if (PREDICT_FALSE (!max_dequeue))
1117 /* The options here are to limit ourselves to max_dequeue or read
1118 * even the data that was enqueued while we were dequeueing and which
1119 * now has an rx event in the mq. Either of the two work. */
1120 to_dequeue = clib_min (max_dequeue, vec_len (em->rx_buf));
1121 n_read = app_recv_stream_raw (s->rx_fifo, em->rx_buf, to_dequeue,
1122 0 /* clear evt */ , 0 /* peek */ );
1125 max_dequeue -= n_read;
1126 s->bytes_received += n_read;
1131 /* Reflect if a non-drop session */
1132 if (!em->no_return && n_read > 0)
1137 n_sent = app_send_stream ((app_session_t *) s,
1138 &em->rx_buf[offset],
1139 n_read, SVM_Q_WAIT);
1146 while ((n_sent <= 0 || n_read > 0) && !em->time_to_stop);
1149 while (max_dequeue > 0 && !em->time_to_stop);
1153 server_handle_mq (echo_main_t * em)
1155 svm_msg_q_msg_t msg;
1160 svm_msg_q_sub (em->our_event_queue, &msg, SVM_Q_WAIT, 0);
1161 e = svm_msg_q_msg_data (em->our_event_queue, &msg);
1162 switch (e->event_type)
1164 case FIFO_EVENT_APP_RX:
1165 server_handle_rx (em, e);
1168 handle_mq_event (e);
1171 if (PREDICT_FALSE (em->time_to_stop == 1))
1173 if (PREDICT_FALSE (em->time_to_print_stats == 1))
1175 em->time_to_print_stats = 0;
1176 fformat (stdout, "%d connections\n", pool_elts (em->sessions));
1178 svm_msg_q_free_msg (em->our_event_queue, &msg);
1183 server_send_listen (echo_main_t * em)
1185 vl_api_bind_uri_t *bmp;
1186 bmp = vl_msg_api_alloc (sizeof (*bmp));
1187 clib_memset (bmp, 0, sizeof (*bmp));
1189 bmp->_vl_msg_id = ntohs (VL_API_BIND_URI);
1190 bmp->client_index = em->my_client_index;
1191 bmp->context = ntohl (0xfeedface);
1192 memcpy (bmp->uri, em->uri, vec_len (em->uri));
1193 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & bmp);
1197 server_listen (echo_main_t * em)
1199 server_send_listen (em);
1200 if (wait_for_state_change (em, STATE_READY))
1202 clib_warning ("timeout waiting for STATE_READY");
1209 server_send_unbind (echo_main_t * em)
1211 vl_api_unbind_uri_t *ump;
1213 ump = vl_msg_api_alloc (sizeof (*ump));
1214 clib_memset (ump, 0, sizeof (*ump));
1216 ump->_vl_msg_id = ntohs (VL_API_UNBIND_URI);
1217 ump->client_index = em->my_client_index;
1218 memcpy (ump->uri, em->uri, vec_len (em->uri));
1219 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & ump);
1223 server_unbind (echo_main_t * em)
1225 server_send_unbind (em);
1226 if (wait_for_state_change (em, STATE_START))
1228 clib_warning ("timeout waiting for STATE_START");
1235 server_run (echo_main_t * em)
1237 echo_session_t *session;
1240 /* $$$$ hack preallocation */
1241 for (i = 0; i < 200000; i++)
1243 pool_get (em->sessions, session);
1244 clib_memset (session, 0, sizeof (*session));
1246 for (i = 0; i < 200000; i++)
1247 pool_put_index (em->sessions, i);
1249 if (application_attach (em))
1253 if (server_listen (em))
1256 /* Enter handle event loop */
1257 server_handle_mq (em);
1260 server_send_unbind (em);
1262 application_detach (em);
1264 fformat (stdout, "Test complete...\n");
1268 vl_api_disconnect_session_reply_t_handler (vl_api_disconnect_session_reply_t *
1271 echo_main_t *em = &echo_main;
1276 clib_warning ("vpp complained about disconnect: %d",
1277 ntohl (mp->retval));
1281 em->state = STATE_START;
1283 p = hash_get (em->session_index_by_vpp_handles, mp->handle);
1286 hash_unset (em->session_index_by_vpp_handles, mp->handle);
1290 clib_warning ("couldn't find session key %llx", mp->handle);
1295 vl_api_application_tls_cert_add_reply_t_handler
1296 (vl_api_application_tls_cert_add_reply_t * mp)
1299 clib_warning ("failed to add tls cert");
1303 vl_api_application_tls_key_add_reply_t_handler
1304 (vl_api_application_tls_key_add_reply_t * mp)
1307 clib_warning ("failed to add tls key");
1310 #define foreach_tcp_echo_msg \
1311 _(BIND_URI_REPLY, bind_uri_reply) \
1312 _(UNBIND_URI_REPLY, unbind_uri_reply) \
1313 _(DISCONNECT_SESSION_REPLY, disconnect_session_reply) \
1314 _(APPLICATION_ATTACH_REPLY, application_attach_reply) \
1315 _(APPLICATION_DETACH_REPLY, application_detach_reply) \
1316 _(MAP_ANOTHER_SEGMENT, map_another_segment) \
1317 _(APPLICATION_TLS_CERT_ADD_REPLY, application_tls_cert_add_reply) \
1318 _(APPLICATION_TLS_KEY_ADD_REPLY, application_tls_key_add_reply) \
1321 tcp_echo_api_hookup (echo_main_t * em)
1324 vl_msg_api_set_handlers(VL_API_##N, #n, \
1325 vl_api_##n##_t_handler, \
1327 vl_api_##n##_t_endian, \
1328 vl_api_##n##_t_print, \
1329 sizeof(vl_api_##n##_t), 1);
1330 foreach_tcp_echo_msg;
1335 main (int argc, char **argv)
1337 int i_am_server = 1, test_return_packets = 0;
1338 echo_main_t *em = &echo_main;
1339 svm_fifo_segment_main_t *sm = &em->segment_main;
1340 unformat_input_t _argv, *a = &_argv;
1343 u8 *bind_uri = (u8 *) "tcp://0.0.0.0/1234";
1344 u8 *connect_uri = (u8 *) "tcp://6.0.1.1/1234";
1345 u64 bytes_to_send = 64 << 10, mbytes;
1349 clib_mem_init_thread_safe (0, 256 << 20);
1351 clib_memset (em, 0, sizeof (*em));
1352 em->session_index_by_vpp_handles = hash_create (0, sizeof (uword));
1353 em->my_pid = getpid ();
1354 em->configured_segment_size = 1 << 20;
1355 em->socket_name = 0;
1356 em->use_sock_api = 1;
1357 em->fifo_size = 64 << 10;
1360 clib_time_init (&em->clib_time);
1361 init_error_string_table (em);
1362 svm_fifo_segment_main_init (sm, HIGH_SEGMENT_BASEVA, 20);
1363 unformat_init_command_line (a, argv);
1365 while (unformat_check_input (a) != UNFORMAT_END_OF_INPUT)
1367 if (unformat (a, "chroot prefix %s", &chroot_prefix))
1369 vl_set_memory_root_path ((char *) chroot_prefix);
1371 else if (unformat (a, "uri %s", &uri))
1373 else if (unformat (a, "segment-size %dM", &tmp))
1374 em->configured_segment_size = tmp << 20;
1375 else if (unformat (a, "segment-size %dG", &tmp))
1376 em->configured_segment_size = tmp << 30;
1377 else if (unformat (a, "server"))
1379 else if (unformat (a, "client"))
1381 else if (unformat (a, "no-return"))
1383 else if (unformat (a, "test"))
1384 test_return_packets = 1;
1385 else if (unformat (a, "mbytes %lld", &mbytes))
1387 bytes_to_send = mbytes << 20;
1389 else if (unformat (a, "gbytes %lld", &mbytes))
1391 bytes_to_send = mbytes << 30;
1393 else if (unformat (a, "socket-name %s", &em->socket_name))
1395 else if (unformat (a, "use-svm-api"))
1396 em->use_sock_api = 0;
1397 else if (unformat (a, "fifo-size %d", &tmp))
1398 em->fifo_size = tmp << 10;
1399 else if (unformat (a, "nclients %d", &em->n_clients))
1403 fformat (stderr, "%s: usage [master|slave]\n", argv[0]);
1408 if (!em->socket_name)
1409 em->socket_name = format (0, "%s%c", API_SOCKET_FILE, 0);
1413 em->uri = format (0, "%s%c", uri, 0);
1414 em->connect_uri = format (0, "%s%c", uri, 0);
1418 em->uri = format (0, "%s%c", bind_uri, 0);
1419 em->connect_uri = format (0, "%s%c", connect_uri, 0);
1422 em->i_am_master = i_am_server;
1423 em->test_return_packets = test_return_packets;
1424 em->bytes_to_send = bytes_to_send;
1425 em->time_to_stop = 0;
1426 vec_validate (em->rx_buf, 4 << 20);
1427 vec_validate (em->client_thread_handles, em->n_clients - 1);
1428 vec_validate (em->thread_args, em->n_clients - 1);
1430 setup_signal_handlers ();
1431 tcp_echo_api_hookup (em);
1433 app_name = i_am_server ? "tcp_echo_server" : "tcp_echo_client";
1434 if (connect_to_vpp (app_name) < 0)
1437 fformat (stderr, "Couldn't connect to vpe, exiting...\n");
1441 if (i_am_server == 0)
1446 /* Make sure detach finishes */
1447 wait_for_state_change (em, STATE_DETACHED);
1449 disconnect_from_vpp (em);
1454 * fd.io coding-style-patch-verification: ON
1457 * eval: (c-set-style "gnu")