2 * Copyright (c) 2016 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
19 #include <vnet/session/application_interface.h>
20 #include <svm/svm_fifo_segment.h>
21 #include <vlibmemory/api.h>
23 #include <vpp/api/vpe_msg_enum.h>
25 #define vl_typedefs /* define message structures */
26 #include <vpp/api/vpe_all_api_h.h>
29 /* declare message handlers for each api */
31 #define vl_endianfun /* define message structures */
32 #include <vpp/api/vpe_all_api_h.h>
35 /* instantiate all the print functions we know about */
36 #define vl_print(handle, ...)
38 #include <vpp/api/vpe_all_api_h.h>
41 #define TCP_ECHO_DBG 0
42 #define DBG(_fmt,_args...) \
44 clib_warning (_fmt, _args)
48 svm_fifo_t *server_rx_fifo;
49 svm_fifo_t *server_tx_fifo;
51 svm_queue_t *vpp_evt_q;
53 u64 vpp_session_handle;
56 volatile u64 bytes_received;
57 volatile u64 bytes_to_receive;
74 svm_queue_t *vl_input_queue;
76 /* API client handle */
79 /* The URI we're playing with */
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_queue_t *our_event_queue;
104 /* $$$ single thread only for the moment */
105 svm_queue_t *vpp_event_queue;
111 /* For deadman timers */
112 clib_time_t clib_time;
114 /* State of the connection, shared between msg RX thread and main thread */
115 volatile connection_state_t state;
117 /* Signal variables */
118 volatile int time_to_stop;
119 volatile int time_to_print_stats;
121 u32 configured_segment_size;
123 /* VNET_API_ERROR_FOO -> "Foo" hash table */
124 uword *error_string_by_error_number;
126 u8 *connect_test_data;
127 pthread_t *client_thread_handles;
129 u32 client_bytes_received;
130 u8 test_return_packets;
138 volatile u32 n_clients_connected;
139 volatile u32 n_active_clients;
142 /** Flag that decides if socket, instead of svm, api is used to connect to
143 * vpp. If sock api is used, shm binary api is subsequently bootstrapped
144 * and all other messages are exchanged using shm IPC. */
148 svm_fifo_segment_main_t *segment_main;
151 echo_main_t echo_main;
156 #define NITER 4000000
159 const char test_srv_crt_rsa[] =
160 "-----BEGIN CERTIFICATE-----\r\n"
161 "MIID5zCCAs+gAwIBAgIJALeMYCEHrTtJMA0GCSqGSIb3DQEBCwUAMIGJMQswCQYD\r\n"
162 "VQQGEwJVUzELMAkGA1UECAwCQ0ExETAPBgNVBAcMCFNhbiBKb3NlMQ4wDAYDVQQK\r\n"
163 "DAVDaXNjbzEOMAwGA1UECwwFZmQuaW8xFjAUBgNVBAMMDXRlc3R0bHMuZmQuaW8x\r\n"
164 "IjAgBgkqhkiG9w0BCQEWE3ZwcC1kZXZAbGlzdHMuZmQuaW8wHhcNMTgwMzA1MjEx\r\n"
165 "NTEyWhcNMjgwMzAyMjExNTEyWjCBiTELMAkGA1UEBhMCVVMxCzAJBgNVBAgMAkNB\r\n"
166 "MREwDwYDVQQHDAhTYW4gSm9zZTEOMAwGA1UECgwFQ2lzY28xDjAMBgNVBAsMBWZk\r\n"
167 "LmlvMRYwFAYDVQQDDA10ZXN0dGxzLmZkLmlvMSIwIAYJKoZIhvcNAQkBFhN2cHAt\r\n"
168 "ZGV2QGxpc3RzLmZkLmlvMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA\r\n"
169 "4C1k8a1DuStgggqT4o09fP9sJ2dC54bxhS/Xk2VEfaIZ222WSo4X/syRVfVy9Yah\r\n"
170 "cpI1zJ/RDxaZSFhgA+nPZBrFMsrULkrdAOpOVj8eDEp9JuWdO2ODSoFnCvLxcYWB\r\n"
171 "Yc5kHryJpEaGJl1sFQSesnzMFty/59ta0stk0Fp8r5NhIjWvSovGzPo6Bhz+VS2c\r\n"
172 "ebIZh4x1t2hHaFcgm0qJoJ6DceReWCW8w+yOVovTolGGq+bpb2Hn7MnRSZ2K2NdL\r\n"
173 "+aLXpkZbS/AODP1FF2vTO1mYL290LO7/51vJmPXNKSDYMy5EvILr5/VqtjsFCwRL\r\n"
174 "Q4jcM/+GeHSAFWx4qIv0BwIDAQABo1AwTjAdBgNVHQ4EFgQUWa1SOB37xmT53tZQ\r\n"
175 "aXuLLhRI7U8wHwYDVR0jBBgwFoAUWa1SOB37xmT53tZQaXuLLhRI7U8wDAYDVR0T\r\n"
176 "BAUwAwEB/zANBgkqhkiG9w0BAQsFAAOCAQEAoUht13W4ya27NVzQuCMvqPWL3VM4\r\n"
177 "3xbPFk02FaGz/WupPu276zGlzJAZrbuDcQowwwU1Ni1Yygxl96s1c2M5rHDTrOKG\r\n"
178 "rK0hbkSFBo+i6I8u4HiiQ4rYmG0Hv6+sXn3of0HsbtDPGgWZoipPWDljPYEURu3e\r\n"
179 "3HRe/Dtsj9CakBoSDzs8ndWaBR+f4sM9Tk1cjD46Gq2T/qpSPXqKxEUXlzhdCAn4\r\n"
180 "twub17Bq2kykHpppCwPg5M+v30tHG/R2Go15MeFWbEJthFk3TZMjKL7UFs7fH+x2\r\n"
181 "wSonXb++jY+KmCb93C+soABBizE57g/KmiR2IxQ/LMjDik01RSUIaM0lLA==\r\n"
182 "-----END CERTIFICATE-----\r\n";
183 const u32 test_srv_crt_rsa_len = sizeof (test_srv_crt_rsa);
185 const char test_srv_key_rsa[] =
186 "-----BEGIN PRIVATE KEY-----\r\n"
187 "MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQDgLWTxrUO5K2CC\r\n"
188 "CpPijT18/2wnZ0LnhvGFL9eTZUR9ohnbbZZKjhf+zJFV9XL1hqFykjXMn9EPFplI\r\n"
189 "WGAD6c9kGsUyytQuSt0A6k5WPx4MSn0m5Z07Y4NKgWcK8vFxhYFhzmQevImkRoYm\r\n"
190 "XWwVBJ6yfMwW3L/n21rSy2TQWnyvk2EiNa9Ki8bM+joGHP5VLZx5shmHjHW3aEdo\r\n"
191 "VyCbSomgnoNx5F5YJbzD7I5Wi9OiUYar5ulvYefsydFJnYrY10v5otemRltL8A4M\r\n"
192 "/UUXa9M7WZgvb3Qs7v/nW8mY9c0pINgzLkS8guvn9Wq2OwULBEtDiNwz/4Z4dIAV\r\n"
193 "bHioi/QHAgMBAAECggEBAMzGipP8+oT166U+NlJXRFifFVN1DvdhG9PWnOxGL+c3\r\n"
194 "ILmBBC08WQzmHshPemBvR6DZkA1H23cV5JTiLWrFtC00CvhXsLRMrE5+uWotI6yE\r\n"
195 "iofybMroHvD6/X5R510UX9hQ6MHu5ShLR5VZ9zXHz5MpTmB/60jG5dLx+jgcwBK8\r\n"
196 "LuGv2YB/WCUwT9QJ3YU2eaingnXtz/MrFbkbltrqlnBdlD+kTtw6Yac9y1XuuQXc\r\n"
197 "BPeulLNDuPolJVWbUvDBZrpt2dXTgz8ws1sv+wCNE0xwQJsqW4Nx3QkpibUL9RUr\r\n"
198 "CVbKlNfa9lopT6nGKlgX69R/uH35yh9AOsfasro6w0ECgYEA82UJ8u/+ORah+0sF\r\n"
199 "Q0FfW5MTdi7OAUHOz16pUsGlaEv0ERrjZxmAkHA/VRwpvDBpx4alCv0Hc39PFLIk\r\n"
200 "nhSsM2BEuBkTAs6/GaoNAiBtQVE/hN7awNRWVmlieS0go3Y3dzaE9IUMyj8sPOFT\r\n"
201 "5JdJ6BM69PHKCkY3dKdnnfpFEuECgYEA68mRpteunF1mdZgXs+WrN+uLlRrQR20F\r\n"
202 "ZyMYiUCH2Dtn26EzA2moy7FipIIrQcX/j+KhYNGM3e7MU4LymIO29E18mn8JODnH\r\n"
203 "sQOXzBTsf8A4yIVMkcuQD3bfb0JiUGYUPOidTp2N7IJA7+6Yc3vQOyb74lnKnJoO\r\n"
204 "gougPT2wS+cCgYAn7muzb6xFsXDhyW0Tm6YJYBfRS9yAWEuVufINobeBZPSl2cN1\r\n"
205 "Jrnw+HlrfTNbrJWuJmjtZJXUXQ6cVp2rUbjutNyRV4vG6iRwEXYQ40EJdkr1gZpi\r\n"
206 "CHQhuShuuPih2MNAy7EEbM+sXrDjTBR3bFqzuHPzu7dp+BshCFX3lRfAAQKBgGQt\r\n"
207 "K5i7IhCFDjb/+3IPLgOAK7mZvsvZ4eXD33TQ2eZgtut1PXtBtNl17/b85uv293Fm\r\n"
208 "VDISVcsk3eLNS8zIiT6afUoWlxAwXEs0v5WRfjl4radkGvgGiJpJYvyeM67877RB\r\n"
209 "EDSKc/X8ESLfOB44iGvZUEMG6zJFscx9DgN25iQZAoGAbyd+JEWwdVH9/K3IH1t2\r\n"
210 "PBkZX17kNWv+iVM1WyFjbe++vfKZCrOJiyiqhDeEqgrP3AuNMlaaduC3VRC3G5oV\r\n"
211 "Mj1tlhDWQ/qhvKdCKNdIVQYDE75nw+FRWV8yYkHAnXYW3tNoweDIwixE0hkPR1bc\r\n"
212 "oEjPLVNtx8SOj/M4rhaPT3I=\r\n" "-----END PRIVATE KEY-----\r\n";
213 const u32 test_srv_key_rsa_len = sizeof (test_srv_key_rsa);
216 format_api_error (u8 * s, va_list * args)
218 echo_main_t *em = &echo_main;
219 i32 error = va_arg (*args, u32);
222 p = hash_get (em->error_string_by_error_number, -error);
225 s = format (s, "%s", p[0]);
227 s = format (s, "%d", error);
232 init_error_string_table (echo_main_t * em)
234 em->error_string_by_error_number = hash_create (0, sizeof (uword));
236 #define _(n,v,s) hash_set (em->error_string_by_error_number, -v, s);
237 foreach_vnet_api_error;
240 hash_set (em->error_string_by_error_number, 99, "Misc");
244 wait_for_state_change (echo_main_t * em, connection_state_t state)
247 #define TIMEOUT 600.0
249 #define TIMEOUT 600.0
252 f64 timeout = clib_time_now (&em->clib_time) + TIMEOUT;
254 while (clib_time_now (&em->clib_time) < timeout)
256 if (em->state == state)
258 if (em->state == STATE_FAILED)
260 if (em->time_to_stop == 1)
263 clib_warning ("timeout waiting for state %d", state);
268 application_send_attach (echo_main_t * em)
270 vl_api_application_attach_t *bmp;
271 vl_api_application_tls_cert_add_t *cert_mp;
272 vl_api_application_tls_key_add_t *key_mp;
274 bmp = vl_msg_api_alloc (sizeof (*bmp));
275 memset (bmp, 0, sizeof (*bmp));
277 bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_ATTACH);
278 bmp->client_index = em->my_client_index;
279 bmp->context = ntohl (0xfeedface);
280 bmp->options[APP_OPTIONS_FLAGS] =
281 APP_OPTIONS_FLAGS_ACCEPT_REDIRECT | APP_OPTIONS_FLAGS_ADD_SEGMENT;
282 bmp->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = 16;
283 bmp->options[APP_OPTIONS_RX_FIFO_SIZE] = em->fifo_size;
284 bmp->options[APP_OPTIONS_TX_FIFO_SIZE] = em->fifo_size;
285 bmp->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = 128 << 20;
286 bmp->options[APP_OPTIONS_SEGMENT_SIZE] = 256 << 20;
287 bmp->options[APP_OPTIONS_EVT_QUEUE_SIZE] = 256;
288 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & bmp);
290 cert_mp = vl_msg_api_alloc (sizeof (*cert_mp) + test_srv_crt_rsa_len);
291 memset (cert_mp, 0, sizeof (*cert_mp));
292 cert_mp->_vl_msg_id = ntohs (VL_API_APPLICATION_TLS_CERT_ADD);
293 cert_mp->client_index = em->my_client_index;
294 cert_mp->context = ntohl (0xfeedface);
295 cert_mp->cert_len = clib_host_to_net_u16 (test_srv_crt_rsa_len);
296 clib_memcpy (cert_mp->cert, test_srv_crt_rsa, test_srv_crt_rsa_len);
297 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & cert_mp);
299 key_mp = vl_msg_api_alloc (sizeof (*key_mp) + test_srv_key_rsa_len);
300 memset (key_mp, 0, sizeof (*key_mp) + test_srv_key_rsa_len);
301 key_mp->_vl_msg_id = ntohs (VL_API_APPLICATION_TLS_KEY_ADD);
302 key_mp->client_index = em->my_client_index;
303 key_mp->context = ntohl (0xfeedface);
304 key_mp->key_len = clib_host_to_net_u16 (test_srv_key_rsa_len);
305 clib_memcpy (key_mp->key, test_srv_key_rsa, test_srv_key_rsa_len);
306 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & key_mp);
310 application_attach (echo_main_t * em)
312 application_send_attach (em);
313 if (wait_for_state_change (em, STATE_ATTACHED))
315 clib_warning ("timeout waiting for STATE_ATTACHED");
322 application_detach (echo_main_t * em)
324 vl_api_application_detach_t *bmp;
325 bmp = vl_msg_api_alloc (sizeof (*bmp));
326 memset (bmp, 0, sizeof (*bmp));
328 bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_DETACH);
329 bmp->client_index = em->my_client_index;
330 bmp->context = ntohl (0xfeedface);
331 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & bmp);
333 DBG ("%s", "Sent detach");
337 memfd_segment_attach (void)
339 ssvm_private_t _ssvm = { 0 }, *ssvm = &_ssvm;
343 if ((error = vl_socket_client_recv_fd_msg (&ssvm->fd, 5)))
345 clib_error_report (error);
349 if ((rv = ssvm_slave_init_memfd (ssvm)))
356 fifo_segment_attach (char *name, u32 size, ssvm_segment_type_t type)
358 svm_fifo_segment_create_args_t _a, *a = &_a;
362 memset (a, 0, sizeof (*a));
363 a->segment_name = (char *) name;
364 a->segment_size = size;
365 a->segment_type = type;
367 if (type == SSVM_SEGMENT_MEMFD)
369 if ((error = vl_socket_client_recv_fd_msg (&a->memfd_fd, 5)))
371 clib_error_report (error);
376 if ((rv = svm_fifo_segment_attach (a)))
378 clib_warning ("svm_fifo_segment_attach ('%s') failed", name);
386 vl_api_application_attach_reply_t_handler (vl_api_application_attach_reply_t *
389 echo_main_t *em = &echo_main;
390 ssvm_segment_type_t seg_type;
394 clib_warning ("attach failed: %U", format_api_error,
395 clib_net_to_host_u32 (mp->retval));
396 em->state = STATE_FAILED;
400 if (mp->segment_name_length == 0)
402 clib_warning ("segment_name_length zero");
406 seg_type = em->use_sock_api ? SSVM_SEGMENT_MEMFD : SSVM_SEGMENT_SHM;
408 /* Attach to fifo segment */
409 if (fifo_segment_attach ((char *) mp->segment_name, mp->segment_size,
412 em->state = STATE_FAILED;
416 /* If we're using memfd segments, read and attach to event qs segment */
417 if (seg_type == SSVM_SEGMENT_MEMFD)
419 if (memfd_segment_attach ())
421 clib_warning ("failed to attach to evt q segment");
422 em->state = STATE_FAILED;
427 ASSERT (mp->app_event_queue_address);
428 em->our_event_queue = uword_to_pointer (mp->app_event_queue_address,
430 em->state = STATE_ATTACHED;
434 vl_api_application_detach_reply_t_handler (vl_api_application_detach_reply_t *
438 clib_warning ("detach returned with err: %d", mp->retval);
439 echo_main.state = STATE_DETACHED;
443 stop_signal (int signum)
445 echo_main_t *um = &echo_main;
447 um->time_to_stop = 1;
451 stats_signal (int signum)
453 echo_main_t *um = &echo_main;
455 um->time_to_print_stats = 1;
458 static clib_error_t *
459 setup_signal_handlers (void)
461 signal (SIGINT, stats_signal);
462 signal (SIGQUIT, stop_signal);
463 signal (SIGTERM, stop_signal);
469 vlib_cli_output (struct vlib_main_t *vm, char *fmt, ...)
471 clib_warning ("BUG");
475 connect_to_vpp (char *name)
477 echo_main_t *em = &echo_main;
478 api_main_t *am = &api_main;
480 if (em->use_sock_api)
482 if (vl_socket_client_connect ((char *) em->socket_name, name,
483 0 /* default rx, tx buffer */ ))
485 clib_warning ("socket connect failed");
489 if (vl_socket_client_init_shm (0))
491 clib_warning ("init shm api failed");
497 if (vl_client_connect_to_vlib ("/vpe-api", name, 32) < 0)
499 clib_warning ("shmem connect failed");
503 em->vl_input_queue = am->shmem_hdr->vl_input_queue;
504 em->my_client_index = am->my_client_index;
509 disconnect_from_vpp (echo_main_t * em)
511 if (em->use_sock_api)
512 vl_socket_client_disconnect ();
514 vl_client_disconnect_from_vlib ();
518 vl_api_map_another_segment_t_handler (vl_api_map_another_segment_t * mp)
520 svm_fifo_segment_create_args_t _a, *a = &_a;
523 memset (a, 0, sizeof (*a));
524 a->segment_name = (char *) mp->segment_name;
525 a->segment_size = mp->segment_size;
526 /* Attach to the segment vpp created */
527 rv = svm_fifo_segment_attach (a);
530 clib_warning ("svm_fifo_segment_attach ('%s') failed",
534 clib_warning ("Mapped new segment '%s' size %d", mp->segment_name,
539 session_print_stats (echo_main_t * em, session_t * session)
544 deltat = clib_time_now (&em->clib_time) - session->start;
545 bytes = em->i_am_master ? session->bytes_received : em->bytes_to_send;
546 fformat (stdout, "Finished in %.6f\n", deltat);
547 fformat (stdout, "%.4f Gbit/second\n", (bytes * 8.0) / deltat / 1e9);
551 vl_api_disconnect_session_t_handler (vl_api_disconnect_session_t * mp)
553 echo_main_t *em = &echo_main;
554 session_t *session = 0;
555 vl_api_disconnect_session_reply_t *rmp;
559 p = hash_get (em->session_index_by_vpp_handles, mp->handle);
563 session = pool_elt_at_index (em->sessions, p[0]);
564 hash_unset (em->session_index_by_vpp_handles, mp->handle);
565 pool_put (em->sessions, session);
569 clib_warning ("couldn't find session key %llx", mp->handle);
573 // em->time_to_stop = 1;
575 rmp = vl_msg_api_alloc (sizeof (*rmp));
576 memset (rmp, 0, sizeof (*rmp));
578 rmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION_REPLY);
580 rmp->handle = mp->handle;
581 rmp->context = mp->context;
582 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & rmp);
585 session_print_stats (em, session);
589 vl_api_reset_session_t_handler (vl_api_reset_session_t * mp)
591 echo_main_t *em = &echo_main;
592 vl_api_reset_session_reply_t *rmp;
596 p = hash_get (em->session_index_by_vpp_handles, mp->handle);
600 clib_warning ("got reset");
602 em->time_to_stop = 1;
606 clib_warning ("couldn't find session key %llx", mp->handle);
610 rmp = vl_msg_api_alloc (sizeof (*rmp));
611 memset (rmp, 0, sizeof (*rmp));
612 rmp->_vl_msg_id = ntohs (VL_API_RESET_SESSION_REPLY);
614 rmp->handle = mp->handle;
615 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & rmp);
619 test_recv_bytes (session_t * s, u8 * rx_buf, u32 n_read)
622 for (i = 0; i < n_read; i++)
624 if (rx_buf[i] != ((s->bytes_received + i) & 0xff))
626 clib_warning ("error at byte %lld, 0x%x not 0x%x",
627 s->bytes_received + i, rx_buf[i],
628 ((s->bytes_received + i) & 0xff));
634 recv_test_chunk (echo_main_t * em, session_t * s, u8 * rx_buf)
636 svm_fifo_t *rx_fifo = s->server_rx_fifo;
637 u32 n_read_now, n_to_read;
640 n_to_read = svm_fifo_max_dequeue (rx_fifo);
641 svm_fifo_unset_event (rx_fifo);
645 n_read_now = clib_min (vec_len (rx_buf), n_to_read);
646 n_read = svm_fifo_dequeue_nowait (rx_fifo, n_read_now, rx_buf);
650 if (n_read_now != n_read)
651 clib_warning ("huh?");
653 if (em->test_return_packets)
654 test_recv_bytes (s, rx_buf, n_read);
657 s->bytes_received += n_read;
658 s->bytes_to_receive -= n_read;
660 while (n_to_read > 0);
664 client_handle_fifo_event_rx (echo_main_t * em, session_fifo_event_t * e,
669 s = pool_elt_at_index (em->sessions, e->fifo->client_session_index);
670 recv_test_chunk (em, s, rx_buf);
674 send_test_chunk (echo_main_t * em, session_t * s)
676 u64 test_buf_len, bytes_this_chunk, test_buf_offset;
677 svm_fifo_t *tx_fifo = s->server_tx_fifo;
678 u8 *test_data = em->connect_test_data;
679 u32 enq_space, min_chunk = 16 << 10;
680 session_fifo_event_t evt;
683 test_buf_len = vec_len (test_data);
684 test_buf_offset = s->bytes_sent % test_buf_len;
685 bytes_this_chunk = clib_min (test_buf_len - test_buf_offset,
687 enq_space = svm_fifo_max_enqueue (tx_fifo);
688 if (enq_space < clib_min (bytes_this_chunk, min_chunk))
691 bytes_this_chunk = clib_min (bytes_this_chunk, enq_space);
692 written = svm_fifo_enqueue_nowait (tx_fifo, bytes_this_chunk,
693 test_data + test_buf_offset);
697 s->bytes_to_send -= written;
698 s->bytes_sent += written;
700 if (svm_fifo_set_event (tx_fifo))
702 /* Fabricate TX event, send to vpp */
704 evt.event_type = FIFO_EVENT_APP_TX;
705 svm_queue_add (s->vpp_evt_q, (u8 *) & evt, 0 /* wait for mutex */ );
711 * Rx/Tx polling thread per connection
714 client_thread_fn (void *arg)
716 echo_main_t *em = &echo_main;
717 static u8 *rx_buf = 0;
718 u32 session_index = *(u32 *) arg;
721 vec_validate (rx_buf, 1 << 20);
723 while (!em->time_to_stop && em->state != STATE_READY)
726 s = pool_elt_at_index (em->sessions, session_index);
727 while (!em->time_to_stop)
729 send_test_chunk (em, s);
730 recv_test_chunk (em, s, rx_buf);
731 if (!s->bytes_to_send && !s->bytes_to_receive)
735 DBG ("session %d done", session_index);
736 em->tx_total += s->bytes_sent;
737 em->rx_total += s->bytes_received;
738 em->n_active_clients--;
744 * Rx thread that handles all connections.
749 client_rx_thread_fn (void *arg)
751 session_fifo_event_t _e, *e = &_e;
752 echo_main_t *em = &echo_main;
753 static u8 *rx_buf = 0;
755 vec_validate (rx_buf, 1 << 20);
757 while (!em->time_to_stop && em->state != STATE_READY)
760 while (!em->time_to_stop)
762 svm_queue_sub (em->our_event_queue, (u8 *) e, SVM_Q_WAIT, 0);
763 switch (e->event_type)
765 case FIFO_EVENT_APP_RX:
766 client_handle_fifo_event_rx (em, e, rx_buf);
769 clib_warning ("unknown event type %d", e->event_type);
777 vl_api_connect_session_reply_t_handler (vl_api_connect_session_reply_t * mp)
779 echo_main_t *em = &echo_main;
782 svm_fifo_t *rx_fifo, *tx_fifo;
787 clib_warning ("connection failed with code: %U", format_api_error,
788 clib_net_to_host_u32 (mp->retval));
789 em->state = STATE_FAILED;
797 pool_get (em->sessions, session);
798 memset (session, 0, sizeof (*session));
799 session_index = session - em->sessions;
801 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
802 rx_fifo->client_session_index = session_index;
803 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
804 tx_fifo->client_session_index = session_index;
806 session->server_rx_fifo = rx_fifo;
807 session->server_tx_fifo = tx_fifo;
808 session->vpp_session_handle = mp->handle;
809 session->start = clib_time_now (&em->clib_time);
810 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
813 hash_set (em->session_index_by_vpp_handles, mp->handle, session_index);
818 em->thread_args[em->n_clients_connected] = session_index;
819 rv = pthread_create (&em->client_thread_handles[em->n_clients_connected],
820 NULL /*attr */ , client_thread_fn,
821 (void *) &em->thread_args[em->n_clients_connected]);
824 clib_warning ("pthread_create returned %d", rv);
828 em->n_clients_connected += 1;
829 clib_warning ("session %u (0x%llx) connected with local ip %U port %d",
830 session_index, mp->handle, format_ip46_address, mp->lcl_ip,
831 mp->is_ip4, clib_net_to_host_u16 (mp->lcl_port));
835 client_send_connect (echo_main_t * em)
837 vl_api_connect_uri_t *cmp;
838 cmp = vl_msg_api_alloc (sizeof (*cmp));
839 memset (cmp, 0, sizeof (*cmp));
841 cmp->_vl_msg_id = ntohs (VL_API_CONNECT_URI);
842 cmp->client_index = em->my_client_index;
843 cmp->context = ntohl (0xfeedface);
844 memcpy (cmp->uri, em->connect_uri, vec_len (em->connect_uri));
845 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & cmp);
849 client_send_disconnect (echo_main_t * em, session_t * s)
851 vl_api_disconnect_session_t *dmp;
852 dmp = vl_msg_api_alloc (sizeof (*dmp));
853 memset (dmp, 0, sizeof (*dmp));
854 dmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION);
855 dmp->client_index = em->my_client_index;
856 dmp->handle = s->vpp_session_handle;
857 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & dmp);
861 client_disconnect (echo_main_t * em, session_t * s)
863 client_send_disconnect (em, s);
864 pool_put (em->sessions, s);
865 memset (s, 0xfe, sizeof (*s));
870 clients_run (echo_main_t * em)
872 session_fifo_event_t _e, *e = &_e;
873 f64 start_time, deltat, timeout = 100.0;
878 vec_validate (em->connect_test_data, 1024 * 1024 - 1);
879 for (i = 0; i < vec_len (em->connect_test_data); i++)
880 em->connect_test_data[i] = i & 0xff;
883 * Attach and connect the clients
885 if (application_attach (em))
888 for (i = 0; i < em->n_clients; i++)
889 client_send_connect (em);
891 start_time = clib_time_now (&em->clib_time);
892 while (em->n_clients_connected < em->n_clients
893 && (clib_time_now (&em->clib_time) - start_time < timeout)
894 && em->state != STATE_FAILED)
897 if (em->n_clients_connected != em->n_clients)
899 clib_warning ("failed to initialize all connections");
904 * Initialize connections
906 for (i = 0; i < em->n_clients; i++)
908 s = pool_elt_at_index (em->sessions, i);
909 s->bytes_to_send = em->bytes_to_send;
911 s->bytes_to_receive = em->bytes_to_send;
913 em->n_active_clients = em->n_clients_connected;
916 * Wait for client threads to send the data
918 start_time = clib_time_now (&em->clib_time);
919 em->state = STATE_READY;
920 while (em->n_active_clients)
921 if (em->our_event_queue->cursize)
922 svm_queue_sub (em->our_event_queue, (u8 *) e, SVM_Q_NOWAIT, 0);
925 for (i = 0; i < em->n_clients; i++)
927 s = pool_elt_at_index (em->sessions, i);
928 client_disconnect (em, s);
934 deltat = clib_time_now (&em->clib_time) - start_time;
935 fformat (stdout, "%lld bytes (%lld mbytes, %lld gbytes) in %.2f seconds\n",
936 em->tx_total, em->tx_total / (1ULL << 20),
937 em->tx_total / (1ULL << 30), deltat);
938 fformat (stdout, "%.4f Gbit/second\n", (em->tx_total * 8.0) / deltat / 1e9);
940 application_detach (em);
944 vl_api_bind_uri_reply_t_handler (vl_api_bind_uri_reply_t * mp)
946 echo_main_t *em = &echo_main;
950 clib_warning ("bind failed: %U", format_api_error,
951 clib_net_to_host_u32 (mp->retval));
952 em->state = STATE_FAILED;
956 em->state = STATE_READY;
960 vl_api_unbind_uri_reply_t_handler (vl_api_unbind_uri_reply_t * mp)
962 echo_main_t *em = &echo_main;
965 clib_warning ("returned %d", ntohl (mp->retval));
967 em->state = STATE_START;
971 format_ip4_address (u8 * s, va_list * args)
973 u8 *a = va_arg (*args, u8 *);
974 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
978 format_ip6_address (u8 * s, va_list * args)
980 ip6_address_t *a = va_arg (*args, ip6_address_t *);
981 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
983 i_max_n_zero = ARRAY_LEN (a->as_u16);
985 i_first_zero = i_max_n_zero;
987 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
989 u32 is_zero = a->as_u16[i] == 0;
990 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
996 if ((!is_zero && n_zeros > max_n_zeros)
997 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
999 i_max_n_zero = i_first_zero;
1000 max_n_zeros = n_zeros;
1001 i_first_zero = ARRAY_LEN (a->as_u16);
1006 last_double_colon = 0;
1007 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
1009 if (i == i_max_n_zero && max_n_zeros > 1)
1011 s = format (s, "::");
1012 i += max_n_zeros - 1;
1013 last_double_colon = 1;
1017 s = format (s, "%s%x",
1018 (last_double_colon || i == 0) ? "" : ":",
1019 clib_net_to_host_u16 (a->as_u16[i]));
1020 last_double_colon = 0;
1027 /* Format an IP46 address. */
1029 format_ip46_address (u8 * s, va_list * args)
1031 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
1032 ip46_type_t type = va_arg (*args, ip46_type_t);
1038 is_ip4 = ip46_address_is_ip4 (ip46);
1049 format (s, "%U", format_ip4_address, &ip46->ip4) :
1050 format (s, "%U", format_ip6_address, &ip46->ip6);
1054 vl_api_accept_session_t_handler (vl_api_accept_session_t * mp)
1056 echo_main_t *em = &echo_main;
1057 vl_api_accept_session_reply_t *rmp;
1058 svm_fifo_t *rx_fifo, *tx_fifo;
1060 static f64 start_time;
1064 if (start_time == 0.0)
1065 start_time = clib_time_now (&em->clib_time);
1067 ip_str = format (0, "%U", format_ip46_address, &mp->ip, mp->is_ip4);
1068 clib_warning ("Accepted session from: %s:%d", ip_str,
1069 clib_net_to_host_u16 (mp->port));
1070 em->vpp_event_queue =
1071 uword_to_pointer (mp->vpp_event_queue_address, svm_queue_t *);
1073 /* Allocate local session and set it up */
1074 pool_get (em->sessions, session);
1075 session_index = session - em->sessions;
1077 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
1078 rx_fifo->client_session_index = session_index;
1079 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
1080 tx_fifo->client_session_index = session_index;
1082 session->server_rx_fifo = rx_fifo;
1083 session->server_tx_fifo = tx_fifo;
1085 /* Add it to lookup table */
1086 hash_set (em->session_index_by_vpp_handles, mp->handle, session_index);
1088 em->state = STATE_READY;
1090 /* Stats printing */
1091 if (pool_elts (em->sessions) && (pool_elts (em->sessions) % 20000) == 0)
1093 f64 now = clib_time_now (&em->clib_time);
1094 fformat (stdout, "%d active sessions in %.2f seconds, %.2f/sec...\n",
1095 pool_elts (em->sessions), now - start_time,
1096 (f64) pool_elts (em->sessions) / (now - start_time));
1100 * Send accept reply to vpp
1102 rmp = vl_msg_api_alloc (sizeof (*rmp));
1103 memset (rmp, 0, sizeof (*rmp));
1104 rmp->_vl_msg_id = ntohs (VL_API_ACCEPT_SESSION_REPLY);
1105 rmp->handle = mp->handle;
1106 rmp->context = mp->context;
1107 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & rmp);
1109 session->bytes_received = 0;
1110 session->start = clib_time_now (&em->clib_time);
1114 server_handle_fifo_event_rx (echo_main_t * em, session_fifo_event_t * e)
1116 svm_fifo_t *rx_fifo, *tx_fifo;
1118 session_fifo_event_t evt;
1122 u32 max_dequeue, offset, max_transfer, rx_buf_len;
1124 rx_buf_len = vec_len (em->rx_buf);
1126 session = pool_elt_at_index (em->sessions, rx_fifo->client_session_index);
1127 tx_fifo = session->server_tx_fifo;
1129 max_dequeue = svm_fifo_max_dequeue (rx_fifo);
1130 /* Allow enqueuing of a new event */
1131 svm_fifo_unset_event (rx_fifo);
1133 if (PREDICT_FALSE (!max_dequeue))
1136 /* Read the max_dequeue */
1139 max_transfer = clib_min (rx_buf_len, max_dequeue);
1140 n_read = svm_fifo_dequeue_nowait (rx_fifo, max_transfer, em->rx_buf);
1143 max_dequeue -= n_read;
1144 session->bytes_received += n_read;
1145 session->bytes_to_receive -= n_read;
1148 /* Reflect if a non-drop session */
1149 if (!em->no_return && n_read > 0)
1154 rv = svm_fifo_enqueue_nowait (tx_fifo, n_read,
1155 &em->rx_buf[offset]);
1162 while ((rv <= 0 || n_read > 0) && !em->time_to_stop);
1164 /* If event wasn't set, add one */
1165 if (svm_fifo_set_event (tx_fifo))
1167 /* Fabricate TX event, send to vpp */
1169 evt.event_type = FIFO_EVENT_APP_TX;
1171 q = em->vpp_event_queue;
1172 svm_queue_add (q, (u8 *) & evt, 1 /* do wait for mutex */ );
1176 while ((n_read < 0 || max_dequeue > 0) && !em->time_to_stop);
1180 server_handle_event_queue (echo_main_t * em)
1182 session_fifo_event_t _e, *e = &_e;
1186 svm_queue_sub (em->our_event_queue, (u8 *) e, SVM_Q_WAIT, 0);
1187 switch (e->event_type)
1189 case FIFO_EVENT_APP_RX:
1190 server_handle_fifo_event_rx (em, e);
1193 case FIFO_EVENT_DISCONNECT:
1197 clib_warning ("unknown event type %d", e->event_type);
1200 if (PREDICT_FALSE (em->time_to_stop == 1))
1202 if (PREDICT_FALSE (em->time_to_print_stats == 1))
1204 em->time_to_print_stats = 0;
1205 fformat (stdout, "%d connections\n", pool_elts (em->sessions));
1211 server_send_listen (echo_main_t * em)
1213 vl_api_bind_uri_t *bmp;
1214 bmp = vl_msg_api_alloc (sizeof (*bmp));
1215 memset (bmp, 0, sizeof (*bmp));
1217 bmp->_vl_msg_id = ntohs (VL_API_BIND_URI);
1218 bmp->client_index = em->my_client_index;
1219 bmp->context = ntohl (0xfeedface);
1220 memcpy (bmp->uri, em->uri, vec_len (em->uri));
1221 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & bmp);
1225 server_listen (echo_main_t * em)
1227 server_send_listen (em);
1228 if (wait_for_state_change (em, STATE_READY))
1230 clib_warning ("timeout waiting for STATE_READY");
1237 server_send_unbind (echo_main_t * em)
1239 vl_api_unbind_uri_t *ump;
1241 ump = vl_msg_api_alloc (sizeof (*ump));
1242 memset (ump, 0, sizeof (*ump));
1244 ump->_vl_msg_id = ntohs (VL_API_UNBIND_URI);
1245 ump->client_index = em->my_client_index;
1246 memcpy (ump->uri, em->uri, vec_len (em->uri));
1247 vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & ump);
1251 server_unbind (echo_main_t * em)
1253 server_send_unbind (em);
1254 if (wait_for_state_change (em, STATE_START))
1256 clib_warning ("timeout waiting for STATE_START");
1263 server_run (echo_main_t * em)
1268 /* $$$$ hack preallocation */
1269 for (i = 0; i < 200000; i++)
1271 pool_get (em->sessions, session);
1272 memset (session, 0, sizeof (*session));
1274 for (i = 0; i < 200000; i++)
1275 pool_put_index (em->sessions, i);
1277 if (application_attach (em))
1281 if (server_listen (em))
1284 /* Enter handle event loop */
1285 server_handle_event_queue (em);
1288 server_send_unbind (em);
1290 application_detach (em);
1292 fformat (stdout, "Test complete...\n");
1296 vl_api_disconnect_session_reply_t_handler (vl_api_disconnect_session_reply_t *
1299 echo_main_t *em = &echo_main;
1304 clib_warning ("vpp complained about disconnect: %d",
1305 ntohl (mp->retval));
1309 em->state = STATE_START;
1311 p = hash_get (em->session_index_by_vpp_handles, mp->handle);
1314 hash_unset (em->session_index_by_vpp_handles, mp->handle);
1318 clib_warning ("couldn't find session key %llx", mp->handle);
1323 vl_api_application_tls_cert_add_reply_t_handler
1324 (vl_api_application_tls_cert_add_reply_t * mp)
1327 clib_warning ("failed to add tls cert");
1331 vl_api_application_tls_key_add_reply_t_handler
1332 (vl_api_application_tls_key_add_reply_t * mp)
1335 clib_warning ("failed to add tls key");
1338 #define foreach_tcp_echo_msg \
1339 _(BIND_URI_REPLY, bind_uri_reply) \
1340 _(UNBIND_URI_REPLY, unbind_uri_reply) \
1341 _(ACCEPT_SESSION, accept_session) \
1342 _(CONNECT_SESSION_REPLY, connect_session_reply) \
1343 _(DISCONNECT_SESSION, disconnect_session) \
1344 _(DISCONNECT_SESSION_REPLY, disconnect_session_reply) \
1345 _(RESET_SESSION, reset_session) \
1346 _(APPLICATION_ATTACH_REPLY, application_attach_reply) \
1347 _(APPLICATION_DETACH_REPLY, application_detach_reply) \
1348 _(MAP_ANOTHER_SEGMENT, map_another_segment) \
1349 _(APPLICATION_TLS_CERT_ADD_REPLY, application_tls_cert_add_reply) \
1350 _(APPLICATION_TLS_KEY_ADD_REPLY, application_tls_key_add_reply) \
1353 tcp_echo_api_hookup (echo_main_t * em)
1356 vl_msg_api_set_handlers(VL_API_##N, #n, \
1357 vl_api_##n##_t_handler, \
1359 vl_api_##n##_t_endian, \
1360 vl_api_##n##_t_print, \
1361 sizeof(vl_api_##n##_t), 1);
1362 foreach_tcp_echo_msg;
1367 main (int argc, char **argv)
1369 int i_am_server = 1, test_return_packets = 0;
1370 echo_main_t *em = &echo_main;
1371 unformat_input_t _argv, *a = &_argv;
1374 u8 *bind_uri = (u8 *) "tcp://0.0.0.0/1234";
1375 u8 *connect_uri = (u8 *) "tcp://6.0.1.1/1234";
1376 u64 bytes_to_send = 64 << 10, mbytes;
1381 clib_mem_init (0, 256 << 20);
1383 heap = clib_mem_get_per_cpu_heap ();
1384 h = mheap_header (heap);
1386 /* make the main heap thread-safe */
1387 h->flags |= MHEAP_FLAG_THREAD_SAFE;
1389 vec_validate (em->rx_buf, 128 << 10);
1391 memset (em, 0, sizeof (*em));
1392 em->session_index_by_vpp_handles = hash_create (0, sizeof (uword));
1393 em->my_pid = getpid ();
1394 em->configured_segment_size = 1 << 20;
1395 em->socket_name = 0;
1396 em->use_sock_api = 1;
1397 em->fifo_size = 64 << 10;
1400 clib_time_init (&em->clib_time);
1401 init_error_string_table (em);
1402 svm_fifo_segment_main_init (0x200000000ULL, 20);
1403 unformat_init_command_line (a, argv);
1405 while (unformat_check_input (a) != UNFORMAT_END_OF_INPUT)
1407 if (unformat (a, "chroot prefix %s", &chroot_prefix))
1409 vl_set_memory_root_path ((char *) chroot_prefix);
1411 else if (unformat (a, "uri %s", &uri))
1413 else if (unformat (a, "segment-size %dM", &tmp))
1414 em->configured_segment_size = tmp << 20;
1415 else if (unformat (a, "segment-size %dG", &tmp))
1416 em->configured_segment_size = tmp << 30;
1417 else if (unformat (a, "server"))
1419 else if (unformat (a, "client"))
1421 else if (unformat (a, "no-return"))
1423 else if (unformat (a, "test"))
1424 test_return_packets = 1;
1425 else if (unformat (a, "mbytes %lld", &mbytes))
1427 bytes_to_send = mbytes << 20;
1429 else if (unformat (a, "gbytes %lld", &mbytes))
1431 bytes_to_send = mbytes << 30;
1433 else if (unformat (a, "socket-name %s", &em->socket_name))
1435 else if (unformat (a, "use-svm-api"))
1436 em->use_sock_api = 0;
1437 else if (unformat (a, "fifo-size %d", &tmp))
1438 em->fifo_size = tmp << 10;
1439 else if (unformat (a, "nclients %d", &em->n_clients))
1443 fformat (stderr, "%s: usage [master|slave]\n", argv[0]);
1448 if (!em->socket_name)
1449 em->socket_name = format (0, "%s%c", API_SOCKET_FILE, 0);
1453 em->uri = format (0, "%s%c", uri, 0);
1454 em->connect_uri = format (0, "%s%c", uri, 0);
1458 em->uri = format (0, "%s%c", bind_uri, 0);
1459 em->connect_uri = format (0, "%s%c", connect_uri, 0);
1462 em->i_am_master = i_am_server;
1463 em->segment_main = &svm_fifo_segment_main;
1464 em->test_return_packets = test_return_packets;
1465 em->bytes_to_send = bytes_to_send;
1466 em->time_to_stop = 0;
1467 vec_validate (em->client_thread_handles, em->n_clients - 1);
1468 vec_validate (em->thread_args, em->n_clients - 1);
1470 setup_signal_handlers ();
1471 tcp_echo_api_hookup (em);
1473 app_name = i_am_server ? "tcp_echo_server" : "tcp_echo_client";
1474 if (connect_to_vpp (app_name) < 0)
1477 fformat (stderr, "Couldn't connect to vpe, exiting...\n");
1481 if (i_am_server == 0)
1486 /* Make sure detach finishes */
1487 wait_for_state_change (em, STATE_DETACHED);
1489 disconnect_from_vpp (em);
1494 * fd.io coding-style-patch-verification: ON
1497 * eval: (c-set-style "gnu")