2 * Copyright (c) 2017-2018 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.
18 #include <sys/types.h>
19 #include <sys/socket.h>
26 #include <vcl/vcl_test.h>
27 #include <sys/epoll.h>
28 #include <vppinfra/mem.h>
38 vcl_test_stats_t stats;
41 vppcom_data_segments_t ds;
42 } vcl_test_server_conn_t;
51 } vcl_test_server_cfg_t;
58 struct epoll_event wait_events[VCL_TEST_CFG_MAX_EPOLL_EVENTS];
59 size_t conn_pool_size;
60 vcl_test_server_conn_t *conn_pool;
62 pthread_t thread_handle;
63 } vcl_test_server_worker_t;
67 vcl_test_server_cfg_t cfg;
68 vcl_test_server_worker_t *workers;
70 struct sockaddr_storage servaddr;
71 volatile int worker_fails;
72 volatile int active_workers;
74 } vcl_test_server_main_t;
76 static __thread int __wrk_index = 0;
78 static vcl_test_server_main_t vcl_server_main;
81 conn_pool_expand (vcl_test_server_worker_t * wrk, size_t expand_size)
83 vcl_test_server_conn_t *conn_pool;
84 size_t new_size = wrk->conn_pool_size + expand_size;
87 conn_pool = realloc (wrk->conn_pool, new_size * sizeof (*wrk->conn_pool));
90 for (i = wrk->conn_pool_size; i < new_size; i++)
92 vcl_test_server_conn_t *conn = &conn_pool[i];
93 memset (conn, 0, sizeof (*conn));
94 vcl_test_cfg_init (&conn->cfg);
95 vcl_test_buf_alloc (&conn->cfg, 1 /* is_rxbuf */ ,
96 &conn->buf, &conn->buf_size);
97 conn->cfg.txbuf_size = conn->cfg.rxbuf_size;
100 wrk->conn_pool = conn_pool;
101 wrk->conn_pool_size = new_size;
105 vterr ("conn_pool_expand()", -errno);
109 static inline vcl_test_server_conn_t *
110 conn_pool_alloc (vcl_test_server_worker_t * wrk)
115 for (i = 0; i < wrk->conn_pool_size; i++)
117 if (!wrk->conn_pool[i].is_alloc)
119 wrk->conn_pool[i].endpt.ip = wrk->conn_pool[i].ip;
120 wrk->conn_pool[i].is_alloc = 1;
121 return (&wrk->conn_pool[i]);
127 conn_pool_expand (wrk, 2 * wrk->conn_pool_size);
131 vtwrn ("Failed to allocate connection even after expand");
136 conn_pool_free (vcl_test_server_conn_t * conn)
143 sync_config_and_reply (vcl_test_server_conn_t * conn, vcl_test_cfg_t * rx_cfg)
146 vcl_test_buf_alloc (&conn->cfg, 1 /* is_rxbuf */ ,
147 &conn->buf, &conn->buf_size);
148 conn->cfg.txbuf_size = conn->cfg.rxbuf_size;
150 if (conn->cfg.verbose)
152 vtinf ("(fd %d): Replying to cfg message!\n", conn->fd);
153 vcl_test_cfg_dump (&conn->cfg, 0 /* is_client */ );
155 (void) vcl_test_write (conn->fd, (uint8_t *) & conn->cfg,
156 sizeof (conn->cfg), NULL, conn->cfg.verbose);
160 vts_server_start_stop (vcl_test_server_worker_t * wrk,
161 vcl_test_server_conn_t * conn, vcl_test_cfg_t * rx_cfg)
163 u8 is_bi = rx_cfg->test == VCL_TEST_TYPE_BI;
164 vcl_test_server_conn_t *tc;
168 if (rx_cfg->ctrl_handle == conn->fd)
170 for (i = 0; i < wrk->conn_pool_size; i++)
172 tc = &wrk->conn_pool[i];
173 if (tc->cfg.ctrl_handle != conn->fd)
176 vcl_test_stats_accumulate (&conn->stats, &tc->stats);
177 if (vcl_comp_tspec (&conn->stats.stop, &tc->stats.stop) < 0)
178 conn->stats.stop = tc->stats.stop;
179 /* Client delays sending of disconnect */
180 conn->stats.stop.tv_sec -= VCL_TEST_DELAY_DISCONNECT;
181 if (conn->cfg.verbose)
183 sprintf (buf, "SERVER (fd %d) RESULTS", tc->fd);
184 vcl_test_stats_dump (buf, &tc->stats, 1 /* show_rx */ ,
185 is_bi /* show tx */ , conn->cfg.verbose);
189 vcl_test_stats_dump ("SERVER RESULTS", &conn->stats, 1 /* show_rx */ ,
190 is_bi /* show_tx */ , conn->cfg.verbose);
191 vcl_test_cfg_dump (&conn->cfg, 0 /* is_client */ );
192 if (conn->cfg.verbose)
194 vtinf (" vcl server main\n"
195 VCL_TEST_SEPARATOR_STRING
197 " buf size: %u (0x%08x)\n"
198 VCL_TEST_SEPARATOR_STRING,
199 conn->buf, conn->buf_size, conn->buf_size);
202 sync_config_and_reply (conn, rx_cfg);
203 memset (&conn->stats, 0, sizeof (conn->stats));
207 if (rx_cfg->ctrl_handle == ~0)
209 rx_cfg->ctrl_handle = conn->fd;
210 vtinf ("Set control fd %d for test!", conn->fd);
214 vtinf ("Starting %s-directional Stream Test (fd %d)!",
215 is_bi ? "Bi" : "Uni", conn->fd);
218 sync_config_and_reply (conn, rx_cfg);
220 /* read the 1st chunk, record start time */
221 memset (&conn->stats, 0, sizeof (conn->stats));
222 clock_gettime (CLOCK_REALTIME, &conn->stats.start);
227 vts_server_rx (vcl_test_server_conn_t * conn, int rx_bytes)
229 vcl_test_server_main_t *vsm = &vcl_server_main;
230 int client_fd = conn->fd;
232 if (conn->cfg.test == VCL_TEST_TYPE_BI)
236 (void) vcl_test_write (client_fd, conn->ds[0].data, conn->ds[0].len,
237 &conn->stats, conn->cfg.verbose);
239 (void) vcl_test_write (client_fd, conn->ds[1].data,
240 conn->ds[1].len, &conn->stats,
244 (void) vcl_test_write (client_fd, conn->buf, rx_bytes, &conn->stats,
249 vppcom_session_free_segments (conn->fd, conn->ds);
251 if (conn->stats.rx_bytes >= conn->cfg.total_bytes)
252 clock_gettime (CLOCK_REALTIME, &conn->stats.stop);
256 vts_server_echo (vcl_test_server_conn_t * conn, int rx_bytes)
258 vcl_test_server_main_t *vsm = &vcl_server_main;
259 int tx_bytes, nbytes, pos;
262 vppcom_data_segment_copy (conn->buf, conn->ds, rx_bytes);
264 /* If it looks vaguely like a string, make sure it's terminated */
265 pos = rx_bytes < conn->buf_size ? rx_bytes : conn->buf_size - 1;
266 ((char *) conn->buf)[pos] = 0;
267 vtinf ("(fd %d): RX (%d bytes) - '%s'", conn->fd, rx_bytes, conn->buf);
269 if (conn->cfg.verbose)
270 vtinf ("(fd %d): Echoing back", conn->fd);
272 nbytes = strlen ((const char *) conn->buf) + 1;
273 tx_bytes = vcl_test_write (conn->fd, conn->buf, nbytes, &conn->stats,
276 vtinf ("(fd %d): TX (%d bytes) - '%s'", conn->fd, tx_bytes, conn->buf);
280 vts_new_client (vcl_test_server_worker_t * wrk)
282 vcl_test_server_conn_t *conn;
283 struct epoll_event ev;
286 conn = conn_pool_alloc (wrk);
289 vtwrn ("No free connections!");
293 client_fd = vppcom_session_accept (wrk->listen_fd, &conn->endpt, 0);
296 vterr ("vppcom_session_accept()", client_fd);
299 conn->fd = client_fd;
301 vtinf ("Got a connection -- fd = %d (0x%08x)!", client_fd, client_fd);
304 ev.data.u64 = conn - wrk->conn_pool;
305 rv = vppcom_epoll_ctl (wrk->epfd, EPOLL_CTL_ADD, client_fd, &ev);
308 vterr ("vppcom_epoll_ctl()", rv);
315 print_usage_and_exit (void)
318 "vcl_test_server [OPTIONS] <port>\n"
320 " -h Print this message and exit.\n"
322 " -w <num> Number of workers\n"
323 " -u Use UDP transport layer\n");
328 vcl_test_init_endpoint_addr (vcl_test_server_main_t * vsm)
330 struct sockaddr_storage *servaddr = &vsm->servaddr;
331 memset (servaddr, 0, sizeof (*servaddr));
333 if (vsm->cfg.address_ip6)
335 struct sockaddr_in6 *server_addr = (struct sockaddr_in6 *) servaddr;
336 server_addr->sin6_family = AF_INET6;
337 server_addr->sin6_addr = in6addr_any;
338 server_addr->sin6_port = htons (vsm->cfg.port);
342 struct sockaddr_in *server_addr = (struct sockaddr_in *) servaddr;
343 server_addr->sin_family = AF_INET;
344 server_addr->sin_addr.s_addr = htonl (INADDR_ANY);
345 server_addr->sin_port = htons (vsm->cfg.port);
348 if (vsm->cfg.address_ip6)
350 struct sockaddr_in6 *server_addr = (struct sockaddr_in6 *) servaddr;
351 vsm->cfg.endpt.is_ip4 = 0;
352 vsm->cfg.endpt.ip = (uint8_t *) & server_addr->sin6_addr;
353 vsm->cfg.endpt.port = (uint16_t) server_addr->sin6_port;
357 struct sockaddr_in *server_addr = (struct sockaddr_in *) servaddr;
358 vsm->cfg.endpt.is_ip4 = 1;
359 vsm->cfg.endpt.ip = (uint8_t *) & server_addr->sin_addr;
360 vsm->cfg.endpt.port = (uint16_t) server_addr->sin_port;
365 vcl_test_server_process_opts (vcl_test_server_main_t * vsm, int argc,
370 vsm->cfg.proto = VPPCOM_PROTO_TCP;
373 while ((c = getopt (argc, argv, "6Dsw:")) != -1)
377 vsm->cfg.address_ip6 = 1;
381 vsm->cfg.proto = VPPCOM_PROTO_UDP;
387 vsm->cfg.workers = v;
389 vtwrn ("Invalid number of workers %d", v);
398 if (isprint (optopt))
399 vtwrn ("Unknown option `-%c'.", optopt);
401 vtwrn ("Unknown option character `\\x%x'.", optopt);
406 print_usage_and_exit ();
409 if (argc < (optind + 1))
411 fprintf (stderr, "SERVER: ERROR: Insufficient number of arguments!\n");
412 print_usage_and_exit ();
415 if (sscanf (argv[optind], "%d", &v) == 1)
416 vsm->cfg.port = (uint16_t) v;
419 fprintf (stderr, "SERVER: ERROR: Invalid port (%s)!\n", argv[optind]);
420 print_usage_and_exit ();
423 vcl_test_init_endpoint_addr (vsm);
427 vts_handle_cfg (vcl_test_server_worker_t * wrk, vcl_test_cfg_t * rx_cfg,
428 vcl_test_server_conn_t * conn, int rx_bytes)
432 vtinf ("(fd %d): Received a cfg msg!", conn->fd);
433 vcl_test_cfg_dump (rx_cfg, 0 /* is_client */ );
436 if (rx_bytes != sizeof (*rx_cfg))
438 vtinf ("(fd %d): Invalid cfg msg size %d expected %lu!", conn->fd,
439 rx_bytes, sizeof (*rx_cfg));
440 conn->cfg.rxbuf_size = 0;
441 conn->cfg.num_writes = 0;
442 if (conn->cfg.verbose)
444 vtinf ("(fd %d): Replying to cfg msg", conn->fd);
445 vcl_test_cfg_dump (rx_cfg, 0 /* is_client */ );
447 vcl_test_write (conn->fd, (uint8_t *) & conn->cfg,
448 sizeof (conn->cfg), NULL, conn->cfg.verbose);
452 switch (rx_cfg->test)
454 case VCL_TEST_TYPE_NONE:
455 case VCL_TEST_TYPE_ECHO:
456 sync_config_and_reply (conn, rx_cfg);
459 case VCL_TEST_TYPE_BI:
460 case VCL_TEST_TYPE_UNI:
461 vts_server_start_stop (wrk, conn, rx_cfg);
464 case VCL_TEST_TYPE_EXIT:
465 vtinf ("Session fd %d closing!", conn->fd);
466 clock_gettime (CLOCK_REALTIME, &conn->stats.stop);
467 vppcom_session_close (conn->fd);
468 conn_pool_free (conn);
473 vtwrn ("Unknown test type %d", rx_cfg->test);
474 vcl_test_cfg_dump (rx_cfg, 0 /* is_client */ );
482 vts_worker_init (vcl_test_server_worker_t * wrk)
484 vcl_test_server_main_t *vsm = &vcl_server_main;
485 struct epoll_event listen_ev;
488 __wrk_index = wrk->wrk_index;
490 vtinf ("Initializing worker ...");
492 conn_pool_expand (wrk, VCL_TEST_CFG_MAX_TEST_SESS + 1);
494 if (vppcom_worker_register ())
495 vtfail ("vppcom_worker_register()", 1);
497 wrk->listen_fd = vppcom_session_create (vsm->cfg.proto,
498 0 /* is_nonblocking */ );
499 if (wrk->listen_fd < 0)
500 vtfail ("vppcom_session_create()", wrk->listen_fd);
502 rv = vppcom_session_bind (wrk->listen_fd, &vsm->cfg.endpt);
504 vtfail ("vppcom_session_bind()", rv);
506 if (!(vsm->cfg.proto == VPPCOM_PROTO_UDP))
508 rv = vppcom_session_listen (wrk->listen_fd, 10);
510 vtfail ("vppcom_session_listen()", rv);
513 wrk->epfd = vppcom_epoll_create ();
515 vtfail ("vppcom_epoll_create()", wrk->epfd);
517 listen_ev.events = EPOLLIN;
518 listen_ev.data.u32 = ~0;
519 rv = vppcom_epoll_ctl (wrk->epfd, EPOLL_CTL_ADD, wrk->listen_fd,
522 vtfail ("vppcom_epoll_ctl", rv);
524 vsm->active_workers += 1;
525 vtinf ("Waiting for a client to connect on port %d ...", vsm->cfg.port);
529 vts_conn_expect_config (vcl_test_server_conn_t * conn)
531 if (conn->cfg.test == VCL_TEST_TYPE_ECHO)
534 return (conn->stats.rx_bytes < 128
535 || conn->stats.rx_bytes > conn->cfg.total_bytes);
538 static vcl_test_cfg_t *
539 vts_conn_read_config (vcl_test_server_conn_t * conn)
541 vcl_test_server_main_t *vsm = &vcl_server_main;
545 /* We could avoid the copy if the first segment is big enough but this
546 * just simplifies things */
547 vppcom_data_segment_copy (conn->buf, conn->ds, sizeof (vcl_test_cfg_t));
549 return (vcl_test_cfg_t *) conn->buf;
553 vts_conn_read (vcl_test_server_conn_t * conn)
555 vcl_test_server_main_t *vsm = &vcl_server_main;
557 return vcl_test_read_ds (conn->fd, conn->ds, &conn->stats);
559 return vcl_test_read (conn->fd, conn->buf, conn->buf_size, &conn->stats);
563 vts_conn_has_ascii (vcl_test_server_conn_t * conn)
565 vcl_test_server_main_t *vsm = &vcl_server_main;
568 return isascii (conn->ds[0].data[0]);
570 return isascii (conn->buf[0]);
574 vts_worker_loop (void *arg)
576 vcl_test_server_main_t *vsm = &vcl_server_main;
577 vcl_test_server_worker_t *wrk = arg;
578 vcl_test_server_conn_t *conn;
579 int i, rx_bytes, num_ev;
580 vcl_test_cfg_t *rx_cfg;
583 vts_worker_init (wrk);
587 num_ev = vppcom_epoll_wait (wrk->epfd, wrk->wait_events,
588 VCL_TEST_CFG_MAX_EPOLL_EVENTS, 60000.0);
591 vterr ("vppcom_epoll_wait()", num_ev);
594 else if (num_ev == 0)
596 vtinf ("vppcom_epoll_wait() timeout!");
599 for (i = 0; i < num_ev; i++)
601 conn = &wrk->conn_pool[wrk->wait_events[i].data.u32];
602 if (wrk->wait_events[i].events & (EPOLLHUP | EPOLLRDHUP))
604 vppcom_session_close (conn->fd);
608 vtinf ("All client connections closed\n");
613 if (wrk->wait_events[i].data.u32 == ~0)
615 vts_new_client (wrk);
619 if (EPOLLIN & wrk->wait_events[i].events)
622 rx_bytes = vts_conn_read (conn);
626 if (errno == ECONNRESET)
628 vtinf ("Connection reset by remote peer.\n");
635 if (vts_conn_expect_config (conn))
637 rx_cfg = vts_conn_read_config (conn);
638 if (rx_cfg->magic == VCL_TEST_CFG_CTRL_MAGIC)
641 vppcom_session_free_segments (conn->fd, conn->ds);
642 vts_handle_cfg (wrk, rx_cfg, conn, rx_bytes);
645 vtinf ("All client connections closed\n");
651 if ((conn->cfg.test == VCL_TEST_TYPE_UNI)
652 || (conn->cfg.test == VCL_TEST_TYPE_BI))
654 vts_server_rx (conn, rx_bytes);
655 if (vppcom_session_attr (conn->fd, VPPCOM_ATTR_GET_NREAD, 0,
660 if (vts_conn_has_ascii (conn))
662 vts_server_echo (conn, rx_bytes);
666 vtwrn ("FIFO not drained! extra bytes %d", rx_bytes);
671 vtwrn ("Unhandled event");
678 vsm->worker_fails -= 1;
681 vppcom_session_close (wrk->listen_fd);
683 free (wrk->conn_pool);
684 vsm->active_workers -= 1;
689 main (int argc, char **argv)
691 vcl_test_server_main_t *vsm = &vcl_server_main;
694 clib_mem_init_thread_safe (0, 64 << 20);
695 vsm->cfg.port = VCL_TEST_SERVER_PORT;
696 vsm->cfg.workers = 1;
697 vsm->active_workers = 0;
698 vcl_test_server_process_opts (vsm, argc, argv);
700 rv = vppcom_app_create ("vcl_test_server");
702 vtfail ("vppcom_app_create()", rv);
704 vsm->workers = calloc (vsm->cfg.workers, sizeof (*vsm->workers));
705 vts_worker_init (&vsm->workers[0]);
706 for (i = 1; i < vsm->cfg.workers; i++)
708 vsm->workers[i].wrk_index = i;
709 rv = pthread_create (&vsm->workers[i].thread_handle, NULL,
710 vts_worker_loop, (void *) &vsm->workers[i]);
712 vts_worker_loop (&vsm->workers[0]);
714 while (vsm->active_workers > 0)
717 vppcom_app_destroy ();
720 return vsm->worker_fails;
724 * fd.io coding-style-patch-verification: ON
727 * eval: (c-set-style "gnu")