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 send_data_chunk (echo_main_t * em, echo_session_t * s)
538 u64 test_buf_len, bytes_this_chunk, test_buf_offset;
539 u8 *test_data = em->connect_test_data;
542 test_buf_len = vec_len (test_data);
543 test_buf_offset = s->bytes_sent % test_buf_len;
544 bytes_this_chunk = clib_min (test_buf_len - test_buf_offset,
547 n_sent = app_send_stream ((app_session_t *) s, test_data + test_buf_offset,
548 bytes_this_chunk, 0);
552 s->bytes_to_send -= n_sent;
553 s->bytes_sent += n_sent;
558 * Rx/Tx polling thread per connection
561 client_thread_fn (void *arg)
563 echo_main_t *em = &echo_main;
564 static u8 *rx_buf = 0;
565 u32 session_index = *(u32 *) arg;
568 vec_validate (rx_buf, 1 << 20);
570 while (!em->time_to_stop && em->state != STATE_READY)
573 s = pool_elt_at_index (em->sessions, session_index);
574 while (!em->time_to_stop)
576 send_data_chunk (em, s);
577 recv_data_chunk (em, s, rx_buf);
578 if (!s->bytes_to_send && !s->bytes_to_receive)
582 DBG ("session %d done", session_index);
583 em->tx_total += s->bytes_sent;
584 em->rx_total += s->bytes_received;
585 em->n_active_clients--;
591 client_send_connect (echo_main_t * em)
593 vl_api_connect_uri_t *cmp;
594 cmp = vl_msg_api_alloc (sizeof (*cmp));
595 clib_memset (cmp, 0, sizeof (*cmp));
597 cmp->_vl_msg_id = ntohs (VL_API_CONNECT_URI);
598 cmp->client_index = em->my_client_index;
599 cmp->context = ntohl (0xfeedface);
600 memcpy (cmp->uri, em->connect_uri, vec_len (em->connect_uri));
601 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & cmp);
605 client_send_disconnect (echo_main_t * em, echo_session_t * s)
607 vl_api_disconnect_session_t *dmp;
608 dmp = vl_msg_api_alloc (sizeof (*dmp));
609 clib_memset (dmp, 0, sizeof (*dmp));
610 dmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION);
611 dmp->client_index = em->my_client_index;
612 dmp->handle = s->vpp_session_handle;
613 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & dmp);
617 client_disconnect (echo_main_t * em, echo_session_t * s)
619 client_send_disconnect (em, s);
620 pool_put (em->sessions, s);
621 clib_memset (s, 0xfe, sizeof (*s));
626 session_bound_handler (session_bound_msg_t * mp)
628 echo_main_t *em = &echo_main;
632 clib_warning ("bind failed: %U", format_api_error,
633 clib_net_to_host_u32 (mp->retval));
634 em->state = STATE_FAILED;
638 clib_warning ("listening on %U:%u", format_ip46_address, mp->lcl_ip,
639 mp->lcl_is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6, mp->lcl_port);
640 em->state = STATE_READY;
644 session_accepted_handler (session_accepted_msg_t * mp)
646 app_session_evt_t _app_evt, *app_evt = &_app_evt;
647 session_accepted_reply_msg_t *rmp;
648 svm_fifo_t *rx_fifo, *tx_fifo;
649 echo_main_t *em = &echo_main;
650 echo_session_t *session;
651 static f64 start_time;
655 if (start_time == 0.0)
656 start_time = clib_time_now (&em->clib_time);
658 ip_str = format (0, "%U", format_ip46_address, &mp->ip, mp->is_ip4);
659 clib_warning ("Accepted session from: %s:%d", ip_str,
660 clib_net_to_host_u16 (mp->port));
662 /* Allocate local session and set it up */
663 pool_get (em->sessions, session);
664 session_index = session - em->sessions;
666 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
667 rx_fifo->client_session_index = session_index;
668 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
669 tx_fifo->client_session_index = session_index;
671 session->rx_fifo = rx_fifo;
672 session->tx_fifo = tx_fifo;
673 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
676 /* Add it to lookup table */
677 hash_set (em->session_index_by_vpp_handles, mp->handle, session_index);
679 em->state = STATE_READY;
682 if (pool_elts (em->sessions) && (pool_elts (em->sessions) % 20000) == 0)
684 f64 now = clib_time_now (&em->clib_time);
685 fformat (stdout, "%d active sessions in %.2f seconds, %.2f/sec...\n",
686 pool_elts (em->sessions), now - start_time,
687 (f64) pool_elts (em->sessions) / (now - start_time));
691 * Send accept reply to vpp
693 app_alloc_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt,
694 SESSION_CTRL_EVT_ACCEPTED_REPLY);
695 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
696 rmp->handle = mp->handle;
697 rmp->context = mp->context;
698 app_send_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt);
700 session->bytes_received = 0;
701 session->start = clib_time_now (&em->clib_time);
705 session_connected_handler (session_connected_msg_t * mp)
707 echo_main_t *em = &echo_main;
708 echo_session_t *session;
710 svm_fifo_t *rx_fifo, *tx_fifo;
715 clib_warning ("connection failed with code: %U", format_api_error,
716 clib_net_to_host_u32 (mp->retval));
717 em->state = STATE_FAILED;
725 pool_get (em->sessions, session);
726 clib_memset (session, 0, sizeof (*session));
727 session_index = session - em->sessions;
729 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
730 rx_fifo->client_session_index = session_index;
731 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
732 tx_fifo->client_session_index = session_index;
734 session->rx_fifo = rx_fifo;
735 session->tx_fifo = tx_fifo;
736 session->vpp_session_handle = mp->handle;
737 session->start = clib_time_now (&em->clib_time);
738 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
741 hash_set (em->session_index_by_vpp_handles, mp->handle, session_index);
746 em->thread_args[em->n_clients_connected] = session_index;
747 rv = pthread_create (&em->client_thread_handles[em->n_clients_connected],
748 NULL /*attr */ , client_thread_fn,
749 (void *) &em->thread_args[em->n_clients_connected]);
752 clib_warning ("pthread_create returned %d", rv);
756 em->n_clients_connected += 1;
757 clib_warning ("session %u (0x%llx) connected with local ip %U port %d",
758 session_index, mp->handle, format_ip46_address, mp->lcl_ip,
759 mp->is_ip4, clib_net_to_host_u16 (mp->lcl_port));
763 session_disconnected_handler (session_disconnected_msg_t * mp)
765 app_session_evt_t _app_evt, *app_evt = &_app_evt;
766 session_disconnected_reply_msg_t *rmp;
767 echo_main_t *em = &echo_main;
768 echo_session_t *session = 0;
772 p = hash_get (em->session_index_by_vpp_handles, mp->handle);
775 clib_warning ("couldn't find session key %llx", mp->handle);
779 session = pool_elt_at_index (em->sessions, p[0]);
780 hash_unset (em->session_index_by_vpp_handles, mp->handle);
781 pool_put (em->sessions, session);
783 app_alloc_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt,
784 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
785 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
787 rmp->handle = mp->handle;
788 rmp->context = mp->context;
789 app_send_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt);
791 session_print_stats (em, session);
795 session_reset_handler (session_reset_msg_t * mp)
797 app_session_evt_t _app_evt, *app_evt = &_app_evt;
798 echo_main_t *em = &echo_main;
799 session_reset_reply_msg_t *rmp;
800 echo_session_t *session = 0;
804 p = hash_get (em->session_index_by_vpp_handles, mp->handle);
808 session = pool_elt_at_index (em->sessions, p[0]);
809 clib_warning ("got reset");
811 em->time_to_stop = 1;
815 clib_warning ("couldn't find session key %llx", mp->handle);
819 app_alloc_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt,
820 SESSION_CTRL_EVT_RESET_REPLY);
821 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
823 rmp->handle = mp->handle;
824 app_send_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt);
828 handle_mq_event (session_event_t * e)
830 switch (e->event_type)
832 case SESSION_CTRL_EVT_BOUND:
833 session_bound_handler ((session_bound_msg_t *) e->data);
835 case SESSION_CTRL_EVT_ACCEPTED:
836 session_accepted_handler ((session_accepted_msg_t *) e->data);
838 case SESSION_CTRL_EVT_CONNECTED:
839 session_connected_handler ((session_connected_msg_t *) e->data);
841 case SESSION_CTRL_EVT_DISCONNECTED:
842 session_disconnected_handler ((session_disconnected_msg_t *) e->data);
844 case SESSION_CTRL_EVT_RESET:
845 session_reset_handler ((session_reset_msg_t *) e->data);
848 clib_warning ("unhandled %u", e->event_type);
853 clients_run (echo_main_t * em)
855 f64 start_time, deltat, timeout = 100.0;
862 vec_validate (em->connect_test_data, 1024 * 1024 - 1);
863 for (i = 0; i < vec_len (em->connect_test_data); i++)
864 em->connect_test_data[i] = i & 0xff;
867 * Attach and connect the clients
869 if (application_attach (em))
872 for (i = 0; i < em->n_clients; i++)
873 client_send_connect (em);
875 start_time = clib_time_now (&em->clib_time);
876 while (em->n_clients_connected < em->n_clients
877 && (clib_time_now (&em->clib_time) - start_time < timeout)
878 && em->state != STATE_FAILED)
881 svm_msg_q_sub (em->our_event_queue, &msg, SVM_Q_WAIT, 0);
882 e = svm_msg_q_msg_data (em->our_event_queue, &msg);
884 svm_msg_q_free_msg (em->our_event_queue, &msg);
887 if (em->n_clients_connected != em->n_clients)
889 clib_warning ("failed to initialize all connections");
894 * Initialize connections
896 for (i = 0; i < em->n_clients; i++)
898 s = pool_elt_at_index (em->sessions, i);
899 s->bytes_to_send = em->bytes_to_send;
901 s->bytes_to_receive = em->bytes_to_send;
903 em->n_active_clients = em->n_clients_connected;
906 * Wait for client threads to send the data
908 start_time = clib_time_now (&em->clib_time);
909 em->state = STATE_READY;
910 while (em->n_active_clients)
911 if (!svm_msg_q_is_empty (em->our_event_queue))
913 if (svm_msg_q_sub (em->our_event_queue, &msg, SVM_Q_WAIT, 0))
915 clib_warning ("svm msg q returned");
918 e = svm_msg_q_msg_data (em->our_event_queue, &msg);
919 if (e->event_type != FIFO_EVENT_APP_RX)
921 svm_msg_q_free_msg (em->our_event_queue, &msg);
924 for (i = 0; i < em->n_clients; i++)
926 s = pool_elt_at_index (em->sessions, i);
927 client_disconnect (em, s);
933 deltat = clib_time_now (&em->clib_time) - start_time;
934 fformat (stdout, "%lld bytes (%lld mbytes, %lld gbytes) in %.2f seconds\n",
935 em->tx_total, em->tx_total / (1ULL << 20),
936 em->tx_total / (1ULL << 30), deltat);
937 fformat (stdout, "%.4f Gbit/second\n", (em->tx_total * 8.0) / deltat / 1e9);
939 application_detach (em);
943 vl_api_bind_uri_reply_t_handler (vl_api_bind_uri_reply_t * mp)
945 echo_main_t *em = &echo_main;
949 clib_warning ("bind failed: %U", format_api_error,
950 clib_net_to_host_u32 (mp->retval));
951 em->state = STATE_FAILED;
955 em->state = STATE_READY;
959 vl_api_unbind_uri_reply_t_handler (vl_api_unbind_uri_reply_t * mp)
961 echo_main_t *em = &echo_main;
964 clib_warning ("returned %d", ntohl (mp->retval));
966 em->state = STATE_START;
970 format_ip4_address (u8 * s, va_list * args)
972 u8 *a = va_arg (*args, u8 *);
973 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
977 format_ip6_address (u8 * s, va_list * args)
979 ip6_address_t *a = va_arg (*args, ip6_address_t *);
980 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
982 i_max_n_zero = ARRAY_LEN (a->as_u16);
984 i_first_zero = i_max_n_zero;
986 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
988 u32 is_zero = a->as_u16[i] == 0;
989 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
995 if ((!is_zero && n_zeros > max_n_zeros)
996 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
998 i_max_n_zero = i_first_zero;
999 max_n_zeros = n_zeros;
1000 i_first_zero = ARRAY_LEN (a->as_u16);
1005 last_double_colon = 0;
1006 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
1008 if (i == i_max_n_zero && max_n_zeros > 1)
1010 s = format (s, "::");
1011 i += max_n_zeros - 1;
1012 last_double_colon = 1;
1016 s = format (s, "%s%x",
1017 (last_double_colon || i == 0) ? "" : ":",
1018 clib_net_to_host_u16 (a->as_u16[i]));
1019 last_double_colon = 0;
1026 /* Format an IP46 address. */
1028 format_ip46_address (u8 * s, va_list * args)
1030 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
1031 ip46_type_t type = va_arg (*args, ip46_type_t);
1037 is_ip4 = ip46_address_is_ip4 (ip46);
1048 format (s, "%U", format_ip4_address, &ip46->ip4) :
1049 format (s, "%U", format_ip6_address, &ip46->ip6);
1053 server_handle_rx (echo_main_t * em, session_event_t * e)
1055 int n_read, max_dequeue, n_sent;
1056 u32 offset, to_dequeue;
1059 s = pool_elt_at_index (em->sessions, e->session_index);
1061 /* Clear event only once. Otherwise, if we do it in the loop by calling
1062 * app_recv_stream, we may end up with a lot of unhandled rx events on the
1064 svm_fifo_unset_event (s->rx_fifo);
1066 max_dequeue = svm_fifo_max_dequeue (s->rx_fifo);
1067 if (PREDICT_FALSE (!max_dequeue))
1072 /* The options here are to limit ourselves to max_dequeue or read
1073 * even the data that was enqueued while we were dequeueing and which
1074 * now has an rx event in the mq. Either of the two work. */
1075 to_dequeue = clib_min (max_dequeue, vec_len (em->rx_buf));
1076 n_read = app_recv_stream_raw (s->rx_fifo, em->rx_buf, to_dequeue,
1077 0 /* clear evt */ , 0 /* peek */ );
1080 max_dequeue -= n_read;
1081 s->bytes_received += n_read;
1086 /* Reflect if a non-drop session */
1087 if (!em->no_return && n_read > 0)
1092 n_sent = app_send_stream ((app_session_t *) s,
1093 &em->rx_buf[offset],
1094 n_read, SVM_Q_WAIT);
1101 while ((n_sent <= 0 || n_read > 0) && !em->time_to_stop);
1104 while (max_dequeue > 0 && !em->time_to_stop);
1108 server_handle_mq (echo_main_t * em)
1110 svm_msg_q_msg_t msg;
1115 svm_msg_q_sub (em->our_event_queue, &msg, SVM_Q_WAIT, 0);
1116 e = svm_msg_q_msg_data (em->our_event_queue, &msg);
1117 switch (e->event_type)
1119 case SESSION_IO_EVT_RX:
1120 server_handle_rx (em, e);
1123 handle_mq_event (e);
1126 if (PREDICT_FALSE (em->time_to_stop == 1))
1128 if (PREDICT_FALSE (em->time_to_print_stats == 1))
1130 em->time_to_print_stats = 0;
1131 fformat (stdout, "%d connections\n", pool_elts (em->sessions));
1133 svm_msg_q_free_msg (em->our_event_queue, &msg);
1138 server_send_listen (echo_main_t * em)
1140 vl_api_bind_uri_t *bmp;
1141 bmp = vl_msg_api_alloc (sizeof (*bmp));
1142 clib_memset (bmp, 0, sizeof (*bmp));
1144 bmp->_vl_msg_id = ntohs (VL_API_BIND_URI);
1145 bmp->client_index = em->my_client_index;
1146 bmp->context = ntohl (0xfeedface);
1147 memcpy (bmp->uri, em->uri, vec_len (em->uri));
1148 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & bmp);
1152 server_listen (echo_main_t * em)
1154 server_send_listen (em);
1155 if (wait_for_state_change (em, STATE_READY))
1157 clib_warning ("timeout waiting for STATE_READY");
1164 server_send_unbind (echo_main_t * em)
1166 vl_api_unbind_uri_t *ump;
1168 ump = vl_msg_api_alloc (sizeof (*ump));
1169 clib_memset (ump, 0, sizeof (*ump));
1171 ump->_vl_msg_id = ntohs (VL_API_UNBIND_URI);
1172 ump->client_index = em->my_client_index;
1173 memcpy (ump->uri, em->uri, vec_len (em->uri));
1174 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & ump);
1178 server_unbind (echo_main_t * em)
1180 server_send_unbind (em);
1181 if (wait_for_state_change (em, STATE_START))
1183 clib_warning ("timeout waiting for STATE_START");
1190 server_run (echo_main_t * em)
1192 echo_session_t *session;
1195 /* $$$$ hack preallocation */
1196 for (i = 0; i < 200000; i++)
1198 pool_get (em->sessions, session);
1199 clib_memset (session, 0, sizeof (*session));
1201 for (i = 0; i < 200000; i++)
1202 pool_put_index (em->sessions, i);
1204 if (application_attach (em))
1208 if (server_listen (em))
1211 /* Enter handle event loop */
1212 server_handle_mq (em);
1215 server_send_unbind (em);
1217 application_detach (em);
1219 fformat (stdout, "Test complete...\n");
1223 vl_api_disconnect_session_reply_t_handler (vl_api_disconnect_session_reply_t *
1226 echo_main_t *em = &echo_main;
1231 clib_warning ("vpp complained about disconnect: %d",
1232 ntohl (mp->retval));
1236 em->state = STATE_START;
1238 p = hash_get (em->session_index_by_vpp_handles, mp->handle);
1241 hash_unset (em->session_index_by_vpp_handles, mp->handle);
1245 clib_warning ("couldn't find session key %llx", mp->handle);
1250 vl_api_application_tls_cert_add_reply_t_handler
1251 (vl_api_application_tls_cert_add_reply_t * mp)
1254 clib_warning ("failed to add tls cert");
1258 vl_api_application_tls_key_add_reply_t_handler
1259 (vl_api_application_tls_key_add_reply_t * mp)
1262 clib_warning ("failed to add tls key");
1265 #define foreach_tcp_echo_msg \
1266 _(BIND_URI_REPLY, bind_uri_reply) \
1267 _(UNBIND_URI_REPLY, unbind_uri_reply) \
1268 _(DISCONNECT_SESSION_REPLY, disconnect_session_reply) \
1269 _(APPLICATION_ATTACH_REPLY, application_attach_reply) \
1270 _(APPLICATION_DETACH_REPLY, application_detach_reply) \
1271 _(MAP_ANOTHER_SEGMENT, map_another_segment) \
1272 _(APPLICATION_TLS_CERT_ADD_REPLY, application_tls_cert_add_reply) \
1273 _(APPLICATION_TLS_KEY_ADD_REPLY, application_tls_key_add_reply) \
1276 tcp_echo_api_hookup (echo_main_t * em)
1279 vl_msg_api_set_handlers(VL_API_##N, #n, \
1280 vl_api_##n##_t_handler, \
1282 vl_api_##n##_t_endian, \
1283 vl_api_##n##_t_print, \
1284 sizeof(vl_api_##n##_t), 1);
1285 foreach_tcp_echo_msg;
1290 main (int argc, char **argv)
1292 int i_am_server = 1, test_return_packets = 0;
1293 echo_main_t *em = &echo_main;
1294 svm_fifo_segment_main_t *sm = &em->segment_main;
1295 unformat_input_t _argv, *a = &_argv;
1298 u8 *bind_uri = (u8 *) "tcp://0.0.0.0/1234";
1299 u8 *connect_uri = (u8 *) "tcp://6.0.1.1/1234";
1300 u64 bytes_to_send = 64 << 10, mbytes;
1304 clib_mem_init_thread_safe (0, 256 << 20);
1306 clib_memset (em, 0, sizeof (*em));
1307 em->session_index_by_vpp_handles = hash_create (0, sizeof (uword));
1308 em->my_pid = getpid ();
1309 em->configured_segment_size = 1 << 20;
1310 em->socket_name = 0;
1311 em->use_sock_api = 1;
1312 em->fifo_size = 64 << 10;
1315 clib_time_init (&em->clib_time);
1316 init_error_string_table (em);
1317 svm_fifo_segment_main_init (sm, HIGH_SEGMENT_BASEVA, 20);
1318 unformat_init_command_line (a, argv);
1320 while (unformat_check_input (a) != UNFORMAT_END_OF_INPUT)
1322 if (unformat (a, "chroot prefix %s", &chroot_prefix))
1324 vl_set_memory_root_path ((char *) chroot_prefix);
1326 else if (unformat (a, "uri %s", &uri))
1328 else if (unformat (a, "segment-size %dM", &tmp))
1329 em->configured_segment_size = tmp << 20;
1330 else if (unformat (a, "segment-size %dG", &tmp))
1331 em->configured_segment_size = tmp << 30;
1332 else if (unformat (a, "server"))
1334 else if (unformat (a, "client"))
1336 else if (unformat (a, "no-return"))
1338 else if (unformat (a, "test"))
1339 test_return_packets = 1;
1340 else if (unformat (a, "mbytes %lld", &mbytes))
1342 bytes_to_send = mbytes << 20;
1344 else if (unformat (a, "gbytes %lld", &mbytes))
1346 bytes_to_send = mbytes << 30;
1348 else if (unformat (a, "socket-name %s", &em->socket_name))
1350 else if (unformat (a, "use-svm-api"))
1351 em->use_sock_api = 0;
1352 else if (unformat (a, "fifo-size %d", &tmp))
1353 em->fifo_size = tmp << 10;
1354 else if (unformat (a, "nclients %d", &em->n_clients))
1358 fformat (stderr, "%s: usage [master|slave]\n", argv[0]);
1363 if (!em->socket_name)
1364 em->socket_name = format (0, "%s%c", API_SOCKET_FILE, 0);
1368 em->uri = format (0, "%s%c", uri, 0);
1369 em->connect_uri = format (0, "%s%c", uri, 0);
1373 em->uri = format (0, "%s%c", bind_uri, 0);
1374 em->connect_uri = format (0, "%s%c", connect_uri, 0);
1377 em->i_am_master = i_am_server;
1378 em->test_return_packets = test_return_packets;
1379 em->bytes_to_send = bytes_to_send;
1380 em->time_to_stop = 0;
1381 vec_validate (em->rx_buf, 4 << 20);
1382 vec_validate (em->client_thread_handles, em->n_clients - 1);
1383 vec_validate (em->thread_args, em->n_clients - 1);
1385 setup_signal_handlers ();
1386 tcp_echo_api_hookup (em);
1388 app_name = i_am_server ? "tcp_echo_server" : "tcp_echo_client";
1389 if (connect_to_vpp (app_name) < 0)
1392 fformat (stderr, "Couldn't connect to vpe, exiting...\n");
1396 if (i_am_server == 0)
1401 /* Make sure detach finishes */
1402 wait_for_state_change (em, STATE_DETACHED);
1404 disconnect_from_vpp (em);
1409 * fd.io coding-style-patch-verification: ON
1412 * eval: (c-set-style "gnu")