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_FLAGS] |= APP_OPTIONS_FLAGS_USE_MQ_FOR_CTRL_MSGS;
237 bmp->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = 16;
238 bmp->options[APP_OPTIONS_RX_FIFO_SIZE] = em->fifo_size;
239 bmp->options[APP_OPTIONS_TX_FIFO_SIZE] = em->fifo_size;
240 bmp->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = 128 << 20;
241 bmp->options[APP_OPTIONS_SEGMENT_SIZE] = 256 << 20;
242 bmp->options[APP_OPTIONS_EVT_QUEUE_SIZE] = 256;
243 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & bmp);
245 cert_mp = vl_msg_api_alloc (sizeof (*cert_mp) + test_srv_crt_rsa_len);
246 clib_memset (cert_mp, 0, sizeof (*cert_mp));
247 cert_mp->_vl_msg_id = ntohs (VL_API_APPLICATION_TLS_CERT_ADD);
248 cert_mp->client_index = em->my_client_index;
249 cert_mp->context = ntohl (0xfeedface);
250 cert_mp->cert_len = clib_host_to_net_u16 (test_srv_crt_rsa_len);
251 clib_memcpy_fast (cert_mp->cert, test_srv_crt_rsa, test_srv_crt_rsa_len);
252 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & cert_mp);
254 key_mp = vl_msg_api_alloc (sizeof (*key_mp) + test_srv_key_rsa_len);
255 clib_memset (key_mp, 0, sizeof (*key_mp) + test_srv_key_rsa_len);
256 key_mp->_vl_msg_id = ntohs (VL_API_APPLICATION_TLS_KEY_ADD);
257 key_mp->client_index = em->my_client_index;
258 key_mp->context = ntohl (0xfeedface);
259 key_mp->key_len = clib_host_to_net_u16 (test_srv_key_rsa_len);
260 clib_memcpy_fast (key_mp->key, test_srv_key_rsa, test_srv_key_rsa_len);
261 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & key_mp);
265 application_attach (echo_main_t * em)
267 application_send_attach (em);
268 if (wait_for_state_change (em, STATE_ATTACHED))
270 clib_warning ("timeout waiting for STATE_ATTACHED");
277 application_detach (echo_main_t * em)
279 vl_api_application_detach_t *bmp;
280 bmp = vl_msg_api_alloc (sizeof (*bmp));
281 clib_memset (bmp, 0, sizeof (*bmp));
283 bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_DETACH);
284 bmp->client_index = em->my_client_index;
285 bmp->context = ntohl (0xfeedface);
286 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & bmp);
288 DBG ("%s", "Sent detach");
292 ssvm_segment_attach (char *name, ssvm_segment_type_t type, int fd)
294 svm_fifo_segment_create_args_t _a, *a = &_a;
295 svm_fifo_segment_main_t *sm = &echo_main.segment_main;
298 clib_memset (a, 0, sizeof (*a));
299 a->segment_name = (char *) name;
300 a->segment_type = type;
302 if (type == SSVM_SEGMENT_MEMFD)
305 if ((rv = svm_fifo_segment_attach (sm, a)))
307 clib_warning ("svm_fifo_segment_attach ('%s') failed", name);
311 vec_reset_length (a->new_segment_indices);
316 vl_api_application_attach_reply_t_handler (vl_api_application_attach_reply_t *
319 echo_main_t *em = &echo_main;
325 clib_warning ("attach failed: %U", format_api_error,
326 clib_net_to_host_u32 (mp->retval));
330 if (mp->segment_name_length == 0)
332 clib_warning ("segment_name_length zero");
336 ASSERT (mp->app_event_queue_address);
337 em->our_event_queue = uword_to_pointer (mp->app_event_queue_address,
342 vec_validate (fds, mp->n_fds);
343 vl_socket_client_recv_fd_msg (fds, mp->n_fds, 5);
345 if (mp->fd_flags & SESSION_FD_F_VPP_MQ_SEGMENT)
346 if (ssvm_segment_attach (0, SSVM_SEGMENT_MEMFD, fds[n_fds++]))
349 if (mp->fd_flags & SESSION_FD_F_MEMFD_SEGMENT)
350 if (ssvm_segment_attach ((char *) mp->segment_name,
351 SSVM_SEGMENT_MEMFD, fds[n_fds++]))
354 if (mp->fd_flags & SESSION_FD_F_MQ_EVENTFD)
355 svm_msg_q_set_consumer_eventfd (em->our_event_queue, fds[n_fds++]);
361 if (ssvm_segment_attach ((char *) mp->segment_name, SSVM_SEGMENT_SHM,
366 em->state = STATE_ATTACHED;
369 em->state = STATE_FAILED;
374 vl_api_application_detach_reply_t_handler (vl_api_application_detach_reply_t *
378 clib_warning ("detach returned with err: %d", mp->retval);
379 echo_main.state = STATE_DETACHED;
383 stop_signal (int signum)
385 echo_main_t *um = &echo_main;
387 um->time_to_stop = 1;
391 stats_signal (int signum)
393 echo_main_t *um = &echo_main;
395 um->time_to_print_stats = 1;
398 static clib_error_t *
399 setup_signal_handlers (void)
401 signal (SIGINT, stats_signal);
402 signal (SIGQUIT, stop_signal);
403 signal (SIGTERM, stop_signal);
409 vlib_cli_output (struct vlib_main_t *vm, char *fmt, ...)
411 clib_warning ("BUG");
415 connect_to_vpp (char *name)
417 echo_main_t *em = &echo_main;
418 api_main_t *am = &api_main;
420 if (em->use_sock_api)
422 if (vl_socket_client_connect ((char *) em->socket_name, name,
423 0 /* default rx, tx buffer */ ))
425 clib_warning ("socket connect failed");
429 if (vl_socket_client_init_shm (0, 1 /* want_pthread */ ))
431 clib_warning ("init shm api failed");
437 if (vl_client_connect_to_vlib ("/vpe-api", name, 32) < 0)
439 clib_warning ("shmem connect failed");
443 em->vl_input_queue = am->shmem_hdr->vl_input_queue;
444 em->my_client_index = am->my_client_index;
449 disconnect_from_vpp (echo_main_t * em)
451 if (em->use_sock_api)
452 vl_socket_client_disconnect ();
454 vl_client_disconnect_from_vlib ();
458 vl_api_map_another_segment_t_handler (vl_api_map_another_segment_t * mp)
460 svm_fifo_segment_main_t *sm = &echo_main.segment_main;
461 svm_fifo_segment_create_args_t _a, *a = &_a;
464 clib_memset (a, 0, sizeof (*a));
465 a->segment_name = (char *) mp->segment_name;
466 a->segment_size = mp->segment_size;
467 /* Attach to the segment vpp created */
468 rv = svm_fifo_segment_attach (sm, a);
471 clib_warning ("svm_fifo_segment_attach ('%s') failed",
475 clib_warning ("Mapped new segment '%s' size %d", mp->segment_name,
480 session_print_stats (echo_main_t * em, echo_session_t * session)
485 deltat = clib_time_now (&em->clib_time) - session->start;
486 bytes = em->i_am_master ? session->bytes_received : em->bytes_to_send;
487 fformat (stdout, "Finished in %.6f\n", deltat);
488 fformat (stdout, "%.4f Gbit/second\n", (bytes * 8.0) / deltat / 1e9);
492 test_recv_bytes (echo_session_t * s, u8 * rx_buf, u32 n_read)
495 for (i = 0; i < n_read; i++)
497 if (rx_buf[i] != ((s->bytes_received + i) & 0xff))
499 clib_warning ("error at byte %lld, 0x%x not 0x%x",
500 s->bytes_received + i, rx_buf[i],
501 ((s->bytes_received + i) & 0xff));
507 recv_data_chunk (echo_main_t * em, echo_session_t * s, u8 * rx_buf)
509 int n_to_read, n_read;
511 n_to_read = svm_fifo_max_dequeue (s->rx_fifo);
517 n_read = app_recv_stream ((app_session_t *) s, rx_buf,
522 if (em->test_return_packets)
523 test_recv_bytes (s, rx_buf, n_read);
527 s->bytes_received += n_read;
528 s->bytes_to_receive -= n_read;
533 while (n_to_read > 0);
537 client_handle_rx (echo_main_t * em, session_event_t * e, u8 * rx_buf)
541 s = pool_elt_at_index (em->sessions, e->fifo->client_session_index);
542 recv_data_chunk (em, s, rx_buf);
546 send_data_chunk (echo_main_t * em, echo_session_t * s)
548 u64 test_buf_len, bytes_this_chunk, test_buf_offset;
549 u8 *test_data = em->connect_test_data;
552 test_buf_len = vec_len (test_data);
553 test_buf_offset = s->bytes_sent % test_buf_len;
554 bytes_this_chunk = clib_min (test_buf_len - test_buf_offset,
557 n_sent = app_send_stream ((app_session_t *) s, test_data + test_buf_offset,
558 bytes_this_chunk, 0);
562 s->bytes_to_send -= n_sent;
563 s->bytes_sent += n_sent;
568 * Rx/Tx polling thread per connection
571 client_thread_fn (void *arg)
573 echo_main_t *em = &echo_main;
574 static u8 *rx_buf = 0;
575 u32 session_index = *(u32 *) arg;
578 vec_validate (rx_buf, 1 << 20);
580 while (!em->time_to_stop && em->state != STATE_READY)
583 s = pool_elt_at_index (em->sessions, session_index);
584 while (!em->time_to_stop)
586 send_data_chunk (em, s);
587 recv_data_chunk (em, s, rx_buf);
588 if (!s->bytes_to_send && !s->bytes_to_receive)
592 DBG ("session %d done", session_index);
593 em->tx_total += s->bytes_sent;
594 em->rx_total += s->bytes_received;
595 em->n_active_clients--;
601 * Rx thread that handles all connections.
606 client_rx_thread_fn (void *arg)
608 session_event_t _e, *e = &_e;
609 echo_main_t *em = &echo_main;
610 static u8 *rx_buf = 0;
613 vec_validate (rx_buf, 1 << 20);
615 while (!em->time_to_stop && em->state != STATE_READY)
618 while (!em->time_to_stop)
620 svm_msg_q_sub (em->our_event_queue, &msg, SVM_Q_WAIT, 0);
621 e = svm_msg_q_msg_data (em->our_event_queue, &msg);
622 switch (e->event_type)
624 case FIFO_EVENT_APP_RX:
625 client_handle_rx (em, e, rx_buf);
628 clib_warning ("unknown event type %d", e->event_type);
631 svm_msg_q_free_msg (em->our_event_queue, &msg);
637 client_send_connect (echo_main_t * em)
639 vl_api_connect_uri_t *cmp;
640 cmp = vl_msg_api_alloc (sizeof (*cmp));
641 clib_memset (cmp, 0, sizeof (*cmp));
643 cmp->_vl_msg_id = ntohs (VL_API_CONNECT_URI);
644 cmp->client_index = em->my_client_index;
645 cmp->context = ntohl (0xfeedface);
646 memcpy (cmp->uri, em->connect_uri, vec_len (em->connect_uri));
647 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & cmp);
651 client_send_disconnect (echo_main_t * em, echo_session_t * s)
653 vl_api_disconnect_session_t *dmp;
654 dmp = vl_msg_api_alloc (sizeof (*dmp));
655 clib_memset (dmp, 0, sizeof (*dmp));
656 dmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION);
657 dmp->client_index = em->my_client_index;
658 dmp->handle = s->vpp_session_handle;
659 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & dmp);
663 client_disconnect (echo_main_t * em, echo_session_t * s)
665 client_send_disconnect (em, s);
666 pool_put (em->sessions, s);
667 clib_memset (s, 0xfe, sizeof (*s));
672 session_bound_handler (session_bound_msg_t * mp)
674 echo_main_t *em = &echo_main;
678 clib_warning ("bind failed: %U", format_api_error,
679 clib_net_to_host_u32 (mp->retval));
680 em->state = STATE_FAILED;
684 clib_warning ("listening on %U:%u", format_ip46_address, mp->lcl_ip,
685 mp->lcl_is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6, mp->lcl_port);
686 em->state = STATE_READY;
690 session_accepted_handler (session_accepted_msg_t * mp)
692 app_session_evt_t _app_evt, *app_evt = &_app_evt;
693 session_accepted_reply_msg_t *rmp;
694 svm_fifo_t *rx_fifo, *tx_fifo;
695 echo_main_t *em = &echo_main;
696 echo_session_t *session;
697 static f64 start_time;
701 if (start_time == 0.0)
702 start_time = clib_time_now (&em->clib_time);
704 ip_str = format (0, "%U", format_ip46_address, &mp->ip, mp->is_ip4);
705 clib_warning ("Accepted session from: %s:%d", ip_str,
706 clib_net_to_host_u16 (mp->port));
708 /* Allocate local session and set it up */
709 pool_get (em->sessions, session);
710 session_index = session - em->sessions;
712 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
713 rx_fifo->client_session_index = session_index;
714 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
715 tx_fifo->client_session_index = session_index;
717 session->rx_fifo = rx_fifo;
718 session->tx_fifo = tx_fifo;
719 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
722 /* Add it to lookup table */
723 hash_set (em->session_index_by_vpp_handles, mp->handle, session_index);
725 em->state = STATE_READY;
728 if (pool_elts (em->sessions) && (pool_elts (em->sessions) % 20000) == 0)
730 f64 now = clib_time_now (&em->clib_time);
731 fformat (stdout, "%d active sessions in %.2f seconds, %.2f/sec...\n",
732 pool_elts (em->sessions), now - start_time,
733 (f64) pool_elts (em->sessions) / (now - start_time));
737 * Send accept reply to vpp
739 app_alloc_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt,
740 SESSION_CTRL_EVT_ACCEPTED_REPLY);
741 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
742 rmp->handle = mp->handle;
743 rmp->context = mp->context;
744 app_send_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt);
746 session->bytes_received = 0;
747 session->start = clib_time_now (&em->clib_time);
751 session_connected_handler (session_connected_msg_t * mp)
753 echo_main_t *em = &echo_main;
754 echo_session_t *session;
756 svm_fifo_t *rx_fifo, *tx_fifo;
761 clib_warning ("connection failed with code: %U", format_api_error,
762 clib_net_to_host_u32 (mp->retval));
763 em->state = STATE_FAILED;
771 pool_get (em->sessions, session);
772 clib_memset (session, 0, sizeof (*session));
773 session_index = session - em->sessions;
775 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
776 rx_fifo->client_session_index = session_index;
777 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
778 tx_fifo->client_session_index = session_index;
780 session->rx_fifo = rx_fifo;
781 session->tx_fifo = tx_fifo;
782 session->vpp_session_handle = mp->handle;
783 session->start = clib_time_now (&em->clib_time);
784 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
787 hash_set (em->session_index_by_vpp_handles, mp->handle, session_index);
792 em->thread_args[em->n_clients_connected] = session_index;
793 rv = pthread_create (&em->client_thread_handles[em->n_clients_connected],
794 NULL /*attr */ , client_thread_fn,
795 (void *) &em->thread_args[em->n_clients_connected]);
798 clib_warning ("pthread_create returned %d", rv);
802 em->n_clients_connected += 1;
803 clib_warning ("session %u (0x%llx) connected with local ip %U port %d",
804 session_index, mp->handle, format_ip46_address, mp->lcl_ip,
805 mp->is_ip4, clib_net_to_host_u16 (mp->lcl_port));
809 session_disconnected_handler (session_disconnected_msg_t * mp)
811 app_session_evt_t _app_evt, *app_evt = &_app_evt;
812 session_disconnected_reply_msg_t *rmp;
813 echo_main_t *em = &echo_main;
814 echo_session_t *session = 0;
818 p = hash_get (em->session_index_by_vpp_handles, mp->handle);
821 clib_warning ("couldn't find session key %llx", mp->handle);
825 session = pool_elt_at_index (em->sessions, p[0]);
826 hash_unset (em->session_index_by_vpp_handles, mp->handle);
827 pool_put (em->sessions, session);
829 app_alloc_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt,
830 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
831 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
833 rmp->handle = mp->handle;
834 rmp->context = mp->context;
835 app_send_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt);
837 session_print_stats (em, session);
841 session_reset_handler (session_reset_msg_t * mp)
843 app_session_evt_t _app_evt, *app_evt = &_app_evt;
844 echo_main_t *em = &echo_main;
845 session_reset_reply_msg_t *rmp;
846 echo_session_t *session = 0;
850 p = hash_get (em->session_index_by_vpp_handles, mp->handle);
854 session = pool_elt_at_index (em->sessions, p[0]);
855 clib_warning ("got reset");
857 em->time_to_stop = 1;
861 clib_warning ("couldn't find session key %llx", mp->handle);
865 app_alloc_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt,
866 SESSION_CTRL_EVT_RESET_REPLY);
867 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
869 rmp->handle = mp->handle;
870 app_send_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt);
874 handle_mq_event (session_event_t * e)
876 switch (e->event_type)
878 case SESSION_CTRL_EVT_BOUND:
879 session_bound_handler ((session_bound_msg_t *) e->data);
881 case SESSION_CTRL_EVT_ACCEPTED:
882 session_accepted_handler ((session_accepted_msg_t *) e->data);
884 case SESSION_CTRL_EVT_CONNECTED:
885 session_connected_handler ((session_connected_msg_t *) e->data);
887 case SESSION_CTRL_EVT_DISCONNECTED:
888 session_disconnected_handler ((session_disconnected_msg_t *) e->data);
890 case SESSION_CTRL_EVT_RESET:
891 session_reset_handler ((session_reset_msg_t *) e->data);
894 clib_warning ("unhandled %u", e->event_type);
899 clients_run (echo_main_t * em)
901 f64 start_time, deltat, timeout = 100.0;
908 vec_validate (em->connect_test_data, 1024 * 1024 - 1);
909 for (i = 0; i < vec_len (em->connect_test_data); i++)
910 em->connect_test_data[i] = i & 0xff;
913 * Attach and connect the clients
915 if (application_attach (em))
918 for (i = 0; i < em->n_clients; i++)
919 client_send_connect (em);
921 start_time = clib_time_now (&em->clib_time);
922 while (em->n_clients_connected < em->n_clients
923 && (clib_time_now (&em->clib_time) - start_time < timeout)
924 && em->state != STATE_FAILED)
927 svm_msg_q_sub (em->our_event_queue, &msg, SVM_Q_WAIT, 0);
928 e = svm_msg_q_msg_data (em->our_event_queue, &msg);
930 svm_msg_q_free_msg (em->our_event_queue, &msg);
933 if (em->n_clients_connected != em->n_clients)
935 clib_warning ("failed to initialize all connections");
940 * Initialize connections
942 for (i = 0; i < em->n_clients; i++)
944 s = pool_elt_at_index (em->sessions, i);
945 s->bytes_to_send = em->bytes_to_send;
947 s->bytes_to_receive = em->bytes_to_send;
949 em->n_active_clients = em->n_clients_connected;
952 * Wait for client threads to send the data
954 start_time = clib_time_now (&em->clib_time);
955 em->state = STATE_READY;
956 while (em->n_active_clients)
957 if (!svm_msg_q_is_empty (em->our_event_queue))
959 if (svm_msg_q_sub (em->our_event_queue, &msg, SVM_Q_WAIT, 0))
961 clib_warning ("svm msg q returned");
964 e = svm_msg_q_msg_data (em->our_event_queue, &msg);
965 if (e->event_type != FIFO_EVENT_APP_RX)
967 svm_msg_q_free_msg (em->our_event_queue, &msg);
970 for (i = 0; i < em->n_clients; i++)
972 s = pool_elt_at_index (em->sessions, i);
973 client_disconnect (em, s);
979 deltat = clib_time_now (&em->clib_time) - start_time;
980 fformat (stdout, "%lld bytes (%lld mbytes, %lld gbytes) in %.2f seconds\n",
981 em->tx_total, em->tx_total / (1ULL << 20),
982 em->tx_total / (1ULL << 30), deltat);
983 fformat (stdout, "%.4f Gbit/second\n", (em->tx_total * 8.0) / deltat / 1e9);
985 application_detach (em);
989 vl_api_bind_uri_reply_t_handler (vl_api_bind_uri_reply_t * mp)
991 echo_main_t *em = &echo_main;
995 clib_warning ("bind failed: %U", format_api_error,
996 clib_net_to_host_u32 (mp->retval));
997 em->state = STATE_FAILED;
1001 em->state = STATE_READY;
1005 vl_api_unbind_uri_reply_t_handler (vl_api_unbind_uri_reply_t * mp)
1007 echo_main_t *em = &echo_main;
1009 if (mp->retval != 0)
1010 clib_warning ("returned %d", ntohl (mp->retval));
1012 em->state = STATE_START;
1016 format_ip4_address (u8 * s, va_list * args)
1018 u8 *a = va_arg (*args, u8 *);
1019 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
1023 format_ip6_address (u8 * s, va_list * args)
1025 ip6_address_t *a = va_arg (*args, ip6_address_t *);
1026 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
1028 i_max_n_zero = ARRAY_LEN (a->as_u16);
1030 i_first_zero = i_max_n_zero;
1032 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
1034 u32 is_zero = a->as_u16[i] == 0;
1035 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
1041 if ((!is_zero && n_zeros > max_n_zeros)
1042 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
1044 i_max_n_zero = i_first_zero;
1045 max_n_zeros = n_zeros;
1046 i_first_zero = ARRAY_LEN (a->as_u16);
1051 last_double_colon = 0;
1052 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
1054 if (i == i_max_n_zero && max_n_zeros > 1)
1056 s = format (s, "::");
1057 i += max_n_zeros - 1;
1058 last_double_colon = 1;
1062 s = format (s, "%s%x",
1063 (last_double_colon || i == 0) ? "" : ":",
1064 clib_net_to_host_u16 (a->as_u16[i]));
1065 last_double_colon = 0;
1072 /* Format an IP46 address. */
1074 format_ip46_address (u8 * s, va_list * args)
1076 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
1077 ip46_type_t type = va_arg (*args, ip46_type_t);
1083 is_ip4 = ip46_address_is_ip4 (ip46);
1094 format (s, "%U", format_ip4_address, &ip46->ip4) :
1095 format (s, "%U", format_ip6_address, &ip46->ip6);
1099 server_handle_rx (echo_main_t * em, session_event_t * e)
1101 int n_read, max_dequeue, n_sent;
1102 u32 offset, to_dequeue;
1105 s = pool_elt_at_index (em->sessions, e->fifo->client_session_index);
1107 /* Clear event only once. Otherwise, if we do it in the loop by calling
1108 * app_recv_stream, we may end up with a lot of unhandled rx events on the
1110 svm_fifo_unset_event (s->rx_fifo);
1112 max_dequeue = svm_fifo_max_dequeue (s->rx_fifo);
1113 if (PREDICT_FALSE (!max_dequeue))
1118 /* The options here are to limit ourselves to max_dequeue or read
1119 * even the data that was enqueued while we were dequeueing and which
1120 * now has an rx event in the mq. Either of the two work. */
1121 to_dequeue = clib_min (max_dequeue, vec_len (em->rx_buf));
1122 n_read = app_recv_stream_raw (s->rx_fifo, em->rx_buf, to_dequeue,
1123 0 /* clear evt */ , 0 /* peek */ );
1126 max_dequeue -= n_read;
1127 s->bytes_received += n_read;
1132 /* Reflect if a non-drop session */
1133 if (!em->no_return && n_read > 0)
1138 n_sent = app_send_stream ((app_session_t *) s,
1139 &em->rx_buf[offset],
1140 n_read, SVM_Q_WAIT);
1147 while ((n_sent <= 0 || n_read > 0) && !em->time_to_stop);
1150 while (max_dequeue > 0 && !em->time_to_stop);
1154 server_handle_mq (echo_main_t * em)
1156 svm_msg_q_msg_t msg;
1161 svm_msg_q_sub (em->our_event_queue, &msg, SVM_Q_WAIT, 0);
1162 e = svm_msg_q_msg_data (em->our_event_queue, &msg);
1163 switch (e->event_type)
1165 case FIFO_EVENT_APP_RX:
1166 server_handle_rx (em, e);
1169 handle_mq_event (e);
1172 if (PREDICT_FALSE (em->time_to_stop == 1))
1174 if (PREDICT_FALSE (em->time_to_print_stats == 1))
1176 em->time_to_print_stats = 0;
1177 fformat (stdout, "%d connections\n", pool_elts (em->sessions));
1179 svm_msg_q_free_msg (em->our_event_queue, &msg);
1184 server_send_listen (echo_main_t * em)
1186 vl_api_bind_uri_t *bmp;
1187 bmp = vl_msg_api_alloc (sizeof (*bmp));
1188 clib_memset (bmp, 0, sizeof (*bmp));
1190 bmp->_vl_msg_id = ntohs (VL_API_BIND_URI);
1191 bmp->client_index = em->my_client_index;
1192 bmp->context = ntohl (0xfeedface);
1193 memcpy (bmp->uri, em->uri, vec_len (em->uri));
1194 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & bmp);
1198 server_listen (echo_main_t * em)
1200 server_send_listen (em);
1201 if (wait_for_state_change (em, STATE_READY))
1203 clib_warning ("timeout waiting for STATE_READY");
1210 server_send_unbind (echo_main_t * em)
1212 vl_api_unbind_uri_t *ump;
1214 ump = vl_msg_api_alloc (sizeof (*ump));
1215 clib_memset (ump, 0, sizeof (*ump));
1217 ump->_vl_msg_id = ntohs (VL_API_UNBIND_URI);
1218 ump->client_index = em->my_client_index;
1219 memcpy (ump->uri, em->uri, vec_len (em->uri));
1220 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & ump);
1224 server_unbind (echo_main_t * em)
1226 server_send_unbind (em);
1227 if (wait_for_state_change (em, STATE_START))
1229 clib_warning ("timeout waiting for STATE_START");
1236 server_run (echo_main_t * em)
1238 echo_session_t *session;
1241 /* $$$$ hack preallocation */
1242 for (i = 0; i < 200000; i++)
1244 pool_get (em->sessions, session);
1245 clib_memset (session, 0, sizeof (*session));
1247 for (i = 0; i < 200000; i++)
1248 pool_put_index (em->sessions, i);
1250 if (application_attach (em))
1254 if (server_listen (em))
1257 /* Enter handle event loop */
1258 server_handle_mq (em);
1261 server_send_unbind (em);
1263 application_detach (em);
1265 fformat (stdout, "Test complete...\n");
1269 vl_api_disconnect_session_reply_t_handler (vl_api_disconnect_session_reply_t *
1272 echo_main_t *em = &echo_main;
1277 clib_warning ("vpp complained about disconnect: %d",
1278 ntohl (mp->retval));
1282 em->state = STATE_START;
1284 p = hash_get (em->session_index_by_vpp_handles, mp->handle);
1287 hash_unset (em->session_index_by_vpp_handles, mp->handle);
1291 clib_warning ("couldn't find session key %llx", mp->handle);
1296 vl_api_application_tls_cert_add_reply_t_handler
1297 (vl_api_application_tls_cert_add_reply_t * mp)
1300 clib_warning ("failed to add tls cert");
1304 vl_api_application_tls_key_add_reply_t_handler
1305 (vl_api_application_tls_key_add_reply_t * mp)
1308 clib_warning ("failed to add tls key");
1311 #define foreach_tcp_echo_msg \
1312 _(BIND_URI_REPLY, bind_uri_reply) \
1313 _(UNBIND_URI_REPLY, unbind_uri_reply) \
1314 _(DISCONNECT_SESSION_REPLY, disconnect_session_reply) \
1315 _(APPLICATION_ATTACH_REPLY, application_attach_reply) \
1316 _(APPLICATION_DETACH_REPLY, application_detach_reply) \
1317 _(MAP_ANOTHER_SEGMENT, map_another_segment) \
1318 _(APPLICATION_TLS_CERT_ADD_REPLY, application_tls_cert_add_reply) \
1319 _(APPLICATION_TLS_KEY_ADD_REPLY, application_tls_key_add_reply) \
1322 tcp_echo_api_hookup (echo_main_t * em)
1325 vl_msg_api_set_handlers(VL_API_##N, #n, \
1326 vl_api_##n##_t_handler, \
1328 vl_api_##n##_t_endian, \
1329 vl_api_##n##_t_print, \
1330 sizeof(vl_api_##n##_t), 1);
1331 foreach_tcp_echo_msg;
1336 main (int argc, char **argv)
1338 int i_am_server = 1, test_return_packets = 0;
1339 echo_main_t *em = &echo_main;
1340 svm_fifo_segment_main_t *sm = &em->segment_main;
1341 unformat_input_t _argv, *a = &_argv;
1344 u8 *bind_uri = (u8 *) "tcp://0.0.0.0/1234";
1345 u8 *connect_uri = (u8 *) "tcp://6.0.1.1/1234";
1346 u64 bytes_to_send = 64 << 10, mbytes;
1350 clib_mem_init_thread_safe (0, 256 << 20);
1352 clib_memset (em, 0, sizeof (*em));
1353 em->session_index_by_vpp_handles = hash_create (0, sizeof (uword));
1354 em->my_pid = getpid ();
1355 em->configured_segment_size = 1 << 20;
1356 em->socket_name = 0;
1357 em->use_sock_api = 1;
1358 em->fifo_size = 64 << 10;
1361 clib_time_init (&em->clib_time);
1362 init_error_string_table (em);
1363 svm_fifo_segment_main_init (sm, HIGH_SEGMENT_BASEVA, 20);
1364 unformat_init_command_line (a, argv);
1366 while (unformat_check_input (a) != UNFORMAT_END_OF_INPUT)
1368 if (unformat (a, "chroot prefix %s", &chroot_prefix))
1370 vl_set_memory_root_path ((char *) chroot_prefix);
1372 else if (unformat (a, "uri %s", &uri))
1374 else if (unformat (a, "segment-size %dM", &tmp))
1375 em->configured_segment_size = tmp << 20;
1376 else if (unformat (a, "segment-size %dG", &tmp))
1377 em->configured_segment_size = tmp << 30;
1378 else if (unformat (a, "server"))
1380 else if (unformat (a, "client"))
1382 else if (unformat (a, "no-return"))
1384 else if (unformat (a, "test"))
1385 test_return_packets = 1;
1386 else if (unformat (a, "mbytes %lld", &mbytes))
1388 bytes_to_send = mbytes << 20;
1390 else if (unformat (a, "gbytes %lld", &mbytes))
1392 bytes_to_send = mbytes << 30;
1394 else if (unformat (a, "socket-name %s", &em->socket_name))
1396 else if (unformat (a, "use-svm-api"))
1397 em->use_sock_api = 0;
1398 else if (unformat (a, "fifo-size %d", &tmp))
1399 em->fifo_size = tmp << 10;
1400 else if (unformat (a, "nclients %d", &em->n_clients))
1404 fformat (stderr, "%s: usage [master|slave]\n", argv[0]);
1409 if (!em->socket_name)
1410 em->socket_name = format (0, "%s%c", API_SOCKET_FILE, 0);
1414 em->uri = format (0, "%s%c", uri, 0);
1415 em->connect_uri = format (0, "%s%c", uri, 0);
1419 em->uri = format (0, "%s%c", bind_uri, 0);
1420 em->connect_uri = format (0, "%s%c", connect_uri, 0);
1423 em->i_am_master = i_am_server;
1424 em->test_return_packets = test_return_packets;
1425 em->bytes_to_send = bytes_to_send;
1426 em->time_to_stop = 0;
1427 vec_validate (em->rx_buf, 4 << 20);
1428 vec_validate (em->client_thread_handles, em->n_clients - 1);
1429 vec_validate (em->thread_args, em->n_clients - 1);
1431 setup_signal_handlers ();
1432 tcp_echo_api_hookup (em);
1434 app_name = i_am_server ? "tcp_echo_server" : "tcp_echo_client";
1435 if (connect_to_vpp (app_name) < 0)
1438 fformat (stderr, "Couldn't connect to vpe, exiting...\n");
1442 if (i_am_server == 0)
1447 /* Make sure detach finishes */
1448 wait_for_state_change (em, STATE_DETACHED);
1450 disconnect_from_vpp (em);
1455 * fd.io coding-style-patch-verification: ON
1458 * eval: (c-set-style "gnu")