FD.io VPP  v20.09-64-g4f7b92f0a
Vector Packet Processing
sock_test_server.c
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1 /*
2  * Copyright (c) 2017-2019 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:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
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.
14  */
15 
16 #include <unistd.h>
17 #include <errno.h>
18 #include <sys/types.h>
19 #include <sys/socket.h>
20 #include <stdio.h>
21 #include <string.h>
22 #include <time.h>
23 #include <ctype.h>
24 #include <hs_apps/vcl/sock_test.h>
25 #include <sys/stat.h>
26 #include <fcntl.h>
27 #include <sys/ioctl.h>
28 #include <sys/epoll.h>
29 #include <sys/un.h>
30 
31 #define SOCK_SERVER_MAX_TEST_CONN 10
32 #define SOCK_SERVER_MAX_EPOLL_EVENTS 10
33 
34 typedef struct
35 {
36  uint8_t is_alloc;
37  int fd;
38  uint8_t *buf;
39  uint32_t buf_size;
43 
44 typedef struct
45 {
46  uint32_t port;
47  uint32_t address_ip6;
48  uint32_t transport_udp;
50 
51 typedef struct
52 {
53  int listen_fd;
55  int epfd;
56  struct epoll_event listen_ev;
57  struct epoll_event wait_events[SOCK_SERVER_MAX_EPOLL_EVENTS];
60  struct epoll_event af_unix_listen_ev;
61  struct sockaddr_un serveraddr;
62  uint32_t af_unix_xacts;
63  size_t num_conn;
66  int nfds;
67  fd_set rd_fdset;
68  fd_set wr_fdset;
69  struct timeval timeout;
71 
73 
74 static inline void
75 conn_pool_expand (size_t expand_size)
76 {
78  sock_server_conn_t *conn_pool;
79  size_t new_size = ssm->conn_pool_size + expand_size;
80  int i;
81 
82  conn_pool = realloc (ssm->conn_pool, new_size * sizeof (*ssm->conn_pool));
83  if (conn_pool)
84  {
85  for (i = ssm->conn_pool_size; i < new_size; i++)
86  {
87  sock_server_conn_t *conn = &conn_pool[i];
88  memset (conn, 0, sizeof (*conn));
89  vcl_test_cfg_init (&conn->cfg);
90  vcl_test_buf_alloc (&conn->cfg, 1 /* is_rxbuf */ ,
91  &conn->buf, &conn->buf_size);
92  conn->cfg.txbuf_size = conn->cfg.rxbuf_size;
93  }
94 
95  ssm->conn_pool = conn_pool;
96  ssm->conn_pool_size = new_size;
97  }
98  else
99  {
100  int errno_val = errno;
101  perror ("ERROR in conn_pool_expand()");
102  fprintf (stderr, "SERVER: ERROR: Memory allocation "
103  "failed (errno = %d)!\n", errno_val);
104  }
105 }
106 
107 static inline sock_server_conn_t *
109 {
111  int i;
112 
113  for (i = 0; i < ssm->conn_pool_size; i++)
114  {
115  if (!ssm->conn_pool[i].is_alloc)
116  {
117  ssm->conn_pool[i].is_alloc = 1;
118  return (&ssm->conn_pool[i]);
119  }
120  }
121 
122  return 0;
123 }
124 
125 static inline void
127 {
128  conn->fd = 0;
129  conn->is_alloc = 0;
130 }
131 
132 static inline void
134 {
135  conn->cfg = *rx_cfg;
136  vcl_test_buf_alloc (&conn->cfg, 1 /* is_rxbuf */ ,
137  &conn->buf, &conn->buf_size);
138  conn->cfg.txbuf_size = conn->cfg.rxbuf_size;
139 
140  if (conn->cfg.verbose)
141  {
142  printf ("\nSERVER (fd %d): Replying to cfg message!\n", conn->fd);
143  vcl_test_cfg_dump (&conn->cfg, 0 /* is_client */ );
144  }
145  (void) sock_test_write (conn->fd, (uint8_t *) & conn->cfg,
146  sizeof (conn->cfg), NULL, conn->cfg.verbose);
147 }
148 
149 static void
151  vcl_test_cfg_t * rx_cfg)
152 {
154  int client_fd = conn->fd;
155  vcl_test_t test = rx_cfg->test;
156 
157  if (rx_cfg->ctrl_handle == conn->fd)
158  {
159  int i;
160  clock_gettime (CLOCK_REALTIME, &conn->stats.stop);
161 
162  for (i = 0; i < ssm->conn_pool_size; i++)
163  {
164  sock_server_conn_t *tc = &ssm->conn_pool[i];
165 
166  if (tc->cfg.ctrl_handle == conn->fd)
167  {
168  vcl_test_stats_accumulate (&conn->stats, &tc->stats);
169 
170  if (conn->cfg.verbose)
171  {
172  static char buf[64];
173 
174  snprintf (buf, sizeof (buf), "SERVER (fd %d) RESULTS",
175  tc->fd);
176  vcl_test_stats_dump (buf, &tc->stats, 1 /* show_rx */ ,
177  test == VCL_TEST_TYPE_BI
178  /* show tx */ ,
179  conn->cfg.verbose);
180  }
181  }
182  }
183 
184  vcl_test_stats_dump ("SERVER RESULTS", &conn->stats, 1 /* show_rx */ ,
185  (test == VCL_TEST_TYPE_BI) /* show_tx */ ,
186  conn->cfg.verbose);
187  vcl_test_cfg_dump (&conn->cfg, 0 /* is_client */ );
188  if (conn->cfg.verbose)
189  {
190  printf (" sock server main\n"
192  " buf: %p\n"
193  " buf size: %u (0x%08x)\n"
195  conn->buf, conn->buf_size, conn->buf_size);
196  }
197 
198  sync_config_and_reply (conn, rx_cfg);
199  printf ("\nSERVER (fd %d): %s-directional Stream Test Complete!\n"
200  SOCK_TEST_BANNER_STRING "\n", conn->fd,
201  test == VCL_TEST_TYPE_BI ? "Bi" : "Uni");
202  }
203  else
204  {
205  printf ("\n" SOCK_TEST_BANNER_STRING
206  "SERVER (fd %d): %s-directional Stream Test!\n"
207  " Sending client the test cfg to start streaming data...\n",
208  client_fd, test == VCL_TEST_TYPE_BI ? "Bi" : "Uni");
209 
210  rx_cfg->ctrl_handle = (rx_cfg->ctrl_handle == ~0) ? conn->fd :
211  rx_cfg->ctrl_handle;
212 
213  sync_config_and_reply (conn, rx_cfg);
214 
215  /* read the 1st chunk, record start time */
216  memset (&conn->stats, 0, sizeof (conn->stats));
217  clock_gettime (CLOCK_REALTIME, &conn->stats.start);
218  }
219 }
220 
221 
222 static inline void
224 {
225  int client_fd = conn->fd;
226  vcl_test_t test = conn->cfg.test;
227 
228  if (test == VCL_TEST_TYPE_BI)
229  (void) sock_test_write (client_fd, conn->buf, rx_bytes, &conn->stats,
230  conn->cfg.verbose);
231 
232  if (conn->stats.rx_bytes >= conn->cfg.total_bytes)
233  {
234  clock_gettime (CLOCK_REALTIME, &conn->stats.stop);
235  }
236 }
237 
238 static inline void
240 {
242  int af_unix_client_fd;
243  int rv;
244  int errno_val;
245  uint8_t buffer[256];
246  size_t nbytes = strlen (SOCK_TEST_MIXED_EPOLL_DATA) + 1;
247 
248 #if HAVE_ACCEPT4
249  af_unix_client_fd = accept4 (ssm->af_unix_listen_fd,
250  (struct sockaddr *) NULL, NULL, NULL);
251 #else
252  af_unix_client_fd = accept (ssm->af_unix_listen_fd,
253  (struct sockaddr *) NULL, NULL);
254 #endif
255  if (af_unix_client_fd < 0)
256  {
257  errno_val = errno;
258  perror ("ERROR in af_unix_accept()");
259  fprintf (stderr, "SERVER: ERROR: accept failed "
260  "(errno = %d)!\n", errno_val);
261  return;
262  }
263 
264  printf ("SERVER: Got an AF_UNIX connection -- fd = %d (0x%08x)!\n",
265  af_unix_client_fd, af_unix_client_fd);
266 
267  memset (buffer, 0, sizeof (buffer));
268 
269  rv = read (af_unix_client_fd, buffer, nbytes);
270  if (rv < 0)
271  {
272  errno_val = errno;
273  perror ("ERROR in af_unix_echo(): read() failed");
274  fprintf (stderr, "SERVER: ERROR: read(af_unix_client_fd %d (0x%x), "
275  "nbytes %lu) failed (errno = %d)!\n", af_unix_client_fd,
276  af_unix_client_fd, nbytes, errno_val);
277  goto done;
278  }
279  /* Make the buffer is NULL-terminated. */
280  buffer[sizeof (buffer) - 1] = 0;
281  printf ("SERVER (AF_UNIX): RX (%d bytes) - '%s'\n", rv, buffer);
282 
283  if (!strncmp (SOCK_TEST_MIXED_EPOLL_DATA, (const char *) buffer, nbytes))
284  {
285  rv = write (af_unix_client_fd, buffer, nbytes);
286  if (rv < 0)
287  {
288  errno_val = errno;
289  perror ("ERROR in af_unix_echo(): write() failed");
290  fprintf (stderr,
291  "SERVER: ERROR: write(af_unix_client_fd %d (0x%x), "
292  "\"%s\", nbytes %ld) failed (errno = %d)!\n",
293  af_unix_client_fd, af_unix_client_fd, buffer, nbytes,
294  errno_val);
295  goto done;
296  }
297  printf ("SERVER (AF_UNIX): TX (%d bytes) - '%s'\n", rv, buffer);
298  ssm->af_unix_xacts++;
299  }
300 done:
301  close (af_unix_client_fd);
302 }
303 
304 static inline void
306 {
308  int client_fd;
309  sock_server_conn_t *conn;
310 
311  if (ssm->conn_pool_size < (ssm->num_conn + SOCK_SERVER_MAX_TEST_CONN + 1))
313 
314  conn = conn_pool_alloc ();
315  if (!conn)
316  {
317  fprintf (stderr, "\nSERVER: ERROR: No free connections!\n");
318  return;
319  }
320 
321 #if HAVE_ACCEPT4
322  client_fd = accept4 (ssm->listen_fd, (struct sockaddr *) NULL, NULL, NULL);
323 #else
324  client_fd = accept (ssm->listen_fd, (struct sockaddr *) NULL, NULL);
325 #endif
326  if (client_fd < 0)
327  {
328  int errno_val;
329  errno_val = errno;
330  perror ("ERROR in new_client()");
331  fprintf (stderr, "SERVER: ERROR: accept failed "
332  "(errno = %d)!\n", errno_val);
333  return;
334  }
335 
336  printf ("SERVER: Got a connection -- fd = %d (0x%08x)!\n",
337  client_fd, client_fd);
338 
339  conn->fd = client_fd;
340 
341  struct epoll_event ev;
342  int rv;
343 
344  ev.events = EPOLLIN;
345  ev.data.u64 = conn - ssm->conn_pool;
346  rv = epoll_ctl (ssm->epfd, EPOLL_CTL_ADD, client_fd, &ev);
347 
348  if (rv < 0)
349  {
350  int errno_val;
351  errno_val = errno;
352  perror ("ERROR in new_client()");
353  fprintf (stderr, "SERVER: ERROR: epoll_ctl failed (errno = %d)!\n",
354  errno_val);
355  }
356  else
357  ssm->nfds++;
358 }
359 
360 static int
362 {
363  int rv, errno_val;
364 
365  if (ssm->af_unix_listen_fd > 0)
366  return 0;
367 
368  unlink ((const char *) SOCK_TEST_AF_UNIX_FILENAME);
369  ssm->af_unix_listen_fd = socket (AF_UNIX, SOCK_STREAM, 0);
370  if (ssm->af_unix_listen_fd < 0)
371  {
372  errno_val = errno;
373  perror ("ERROR in main(): socket(AF_UNIX) failed");
374  fprintf (stderr,
375  "SERVER: ERROR: socket(AF_UNIX, SOCK_STREAM, 0) failed "
376  "(errno = %d)!\n", errno_val);
377  return ssm->af_unix_listen_fd;
378  }
379 
380  memset (&ssm->serveraddr, 0, sizeof (ssm->serveraddr));
381  ssm->serveraddr.sun_family = AF_UNIX;
382  strncpy (ssm->serveraddr.sun_path, SOCK_TEST_AF_UNIX_FILENAME,
383  sizeof (ssm->serveraddr.sun_path));
384 
385  rv = bind (ssm->af_unix_listen_fd, (struct sockaddr *) &ssm->serveraddr,
386  SUN_LEN (&ssm->serveraddr));
387  if (rv < 0)
388  {
389  errno_val = errno;
390  perror ("ERROR in main(): bind(SOCK_TEST_AF_UNIX_FILENAME) failed");
391  fprintf (stderr, "SERVER: ERROR: bind() fd %d, \"%s\": "
392  "failed (errno = %d)!\n", ssm->af_unix_listen_fd,
393  SOCK_TEST_AF_UNIX_FILENAME, errno_val);
394  close (ssm->af_unix_listen_fd);
395  unlink ((const char *) SOCK_TEST_AF_UNIX_FILENAME);
396  return rv;
397  }
398 
399  rv = listen (ssm->af_unix_listen_fd, 10);
400  if (rv < 0)
401  {
402  errno_val = errno;
403  perror ("ERROR in main(): listen(AF_UNIX) failed");
404  fprintf (stderr, "SERVER: ERROR: listen() fd %d, \"%s\": "
405  "failed (errno = %d)!\n", ssm->af_unix_listen_fd,
406  SOCK_TEST_AF_UNIX_FILENAME, errno_val);
407  close (ssm->af_unix_listen_fd);
408  unlink ((const char *) SOCK_TEST_AF_UNIX_FILENAME);
409  return rv;
410  }
411 
412  ssm->af_unix_listen_ev.events = EPOLLIN;
414  rv = epoll_ctl (ssm->epfd, EPOLL_CTL_ADD, ssm->af_unix_listen_fd,
415  &ssm->af_unix_listen_ev);
416  if (rv < 0)
417  {
418  errno_val = errno;
419  perror ("ERROR in main(): mixed epoll_ctl(EPOLL_CTL_ADD)");
420  fprintf (stderr, "SERVER: ERROR: mixed epoll_ctl(epfd %d (0x%x), "
421  "EPOLL_CTL_ADD, af_unix_listen_fd %d (0x%x), EPOLLIN) failed "
422  "(errno = %d)!\n", ssm->epfd, ssm->epfd,
423  ssm->af_unix_listen_fd, ssm->af_unix_listen_fd, errno_val);
424  close (ssm->af_unix_listen_fd);
425  unlink ((const char *) SOCK_TEST_AF_UNIX_FILENAME);
426  return rv;
427  }
428 
429  return 0;
430 }
431 
432 void
434 {
435  fprintf (stderr,
436  "sock_test_server [OPTIONS] <port>\n"
437  " OPTIONS\n"
438  " -h Print this message and exit.\n"
439  " -6 Use IPv6\n"
440  " -u Use UDP transport layer\n");
441  exit (1);
442 }
443 
444 int
445 main (int argc, char **argv)
446 {
448  int client_fd, rv, main_rv = 0;
449  int tx_bytes, rx_bytes, nbytes;
450  sock_server_conn_t *conn;
451  vcl_test_cfg_t *rx_cfg;
452  uint32_t xtra = 0;
453  uint64_t xtra_bytes = 0;
454  struct sockaddr_storage servaddr;
455  int errno_val;
456  int c, v, i;
457  uint16_t port = VCL_TEST_SERVER_PORT;
458  uint32_t servaddr_size;
459 
460  opterr = 0;
461  while ((c = getopt (argc, argv, "6D")) != -1)
462  switch (c)
463  {
464  case '6':
465  ssm->cfg.address_ip6 = 1;
466  break;
467 
468  case 'D':
469  ssm->cfg.transport_udp = 1;
470  break;
471 
472  case '?':
473  switch (optopt)
474  {
475  default:
476  if (isprint (optopt))
477  fprintf (stderr, "SERVER: ERROR: Unknown "
478  "option `-%c'.\n", optopt);
479  else
480  fprintf (stderr, "SERVER: ERROR: Unknown "
481  "option character `\\x%x'.\n", optopt);
482  }
483  /* fall thru */
484  case 'h':
485  default:
487  }
488 
489  if (argc < (optind + 1))
490  {
491  fprintf (stderr, "SERVER: ERROR: Insufficient number of arguments!\n");
493  }
494 
495  if (sscanf (argv[optind], "%d", &v) == 1)
496  port = (uint16_t) v;
497  else
498  {
499  fprintf (stderr, "SERVER: ERROR: Invalid port (%s)!\n", argv[optind]);
501  }
502 
504 
505  ssm->listen_fd = socket (ssm->cfg.address_ip6 ? AF_INET6 : AF_INET,
506  ssm->cfg.transport_udp ? SOCK_DGRAM : SOCK_STREAM,
507  0);
508 
509  if (ssm->listen_fd < 0)
510  {
511  errno_val = errno;
512  perror ("ERROR in main()");
513  fprintf (stderr, "SERVER: ERROR: socket() failed "
514  "(errno = %d)!\n", errno_val);
515  return ssm->listen_fd;
516  }
517 
518  memset (&servaddr, 0, sizeof (servaddr));
519 
520  if (ssm->cfg.address_ip6)
521  {
522  struct sockaddr_in6 *server_addr = (struct sockaddr_in6 *) &servaddr;
523  servaddr_size = sizeof (*server_addr);
524  server_addr->sin6_family = AF_INET6;
525  server_addr->sin6_addr = in6addr_any;
526  server_addr->sin6_port = htons (port);
527  }
528  else
529  {
530  struct sockaddr_in *server_addr = (struct sockaddr_in *) &servaddr;
531  servaddr_size = sizeof (*server_addr);
532  server_addr->sin_family = AF_INET;
533  server_addr->sin_addr.s_addr = htonl (INADDR_ANY);
534  server_addr->sin_port = htons (port);
535  }
536 
537  rv = bind (ssm->listen_fd, (struct sockaddr *) &servaddr, servaddr_size);
538  if (rv < 0)
539  {
540  errno_val = errno;
541  perror ("ERROR bind returned");
542  fprintf (stderr, "SERVER: ERROR: bind failed (errno = %d)!\n",
543  errno_val);
544  return rv;
545  }
546  if (fcntl (ssm->listen_fd, F_SETFL, O_NONBLOCK) < 0)
547  {
548  errno_val = errno;
549  perror ("ERROR fcntl returned");
550  fprintf (stderr, "SERVER: ERROR: fcntl failed (errno = %d)!\n",
551  errno_val);
552  return rv;
553  }
554  rv = listen (ssm->listen_fd, 10);
555  if (rv < 0)
556  {
557  errno_val = errno;
558  perror ("ERROR in main()");
559  fprintf (stderr, "SERVER: ERROR: listen failed "
560  "(errno = %d)!\n", errno_val);
561  return rv;
562  }
563 
564  ssm->epfd = epoll_create (1);
565  if (ssm->epfd < 0)
566  {
567  errno_val = errno;
568  perror ("ERROR in main()");
569  fprintf (stderr, "SERVER: ERROR: epoll_create failed (errno = %d)!\n",
570  errno_val);
571  return ssm->epfd;
572  }
573 
574  ssm->listen_ev.events = EPOLLIN;
575  ssm->listen_ev.data.u32 = ~0;
576 
577  rv = epoll_ctl (ssm->epfd, EPOLL_CTL_ADD, ssm->listen_fd, &ssm->listen_ev);
578  if (rv < 0)
579  {
580  errno_val = errno;
581  perror ("ERROR in main()");
582  fprintf (stderr, "SERVER: ERROR: epoll_ctl failed "
583  "(errno = %d)!\n", errno_val);
584  return rv;
585  }
586 
587  printf ("\nSERVER: Waiting for a client to connect on port %d...\n", port);
588 
589  while (1)
590  {
591  int num_ev;
592  num_ev = epoll_wait (ssm->epfd, ssm->wait_events,
594  if (num_ev < 0)
595  {
596  perror ("epoll_wait()");
597  fprintf (stderr, "\nSERVER: ERROR: epoll_wait() "
598  "failed -- aborting!\n");
599  main_rv = -1;
600  goto done;
601  }
602  if (num_ev == 0)
603  {
604  fprintf (stderr, "\nSERVER: epoll_wait() timeout!\n");
605  continue;
606  }
607  for (i = 0; i < num_ev; i++)
608  {
609  conn = &ssm->conn_pool[ssm->wait_events[i].data.u32];
610  if (ssm->wait_events[i].events & (EPOLLHUP | EPOLLRDHUP))
611  {
612  close (conn->fd);
613  continue;
614  }
615  if (ssm->wait_events[i].data.u32 == ~0)
616  {
617  new_client ();
618  continue;
619  }
620  else if (ssm->wait_events[i].data.u32 ==
622  {
623  af_unix_echo ();
624  continue;
625  }
626  client_fd = conn->fd;
627 
628  if (EPOLLIN & ssm->wait_events[i].events)
629  {
630  read_again:
631  rx_bytes = sock_test_read (client_fd, conn->buf,
632  conn->buf_size, &conn->stats);
633  if (rx_bytes > 0)
634  {
635  rx_cfg = (vcl_test_cfg_t *) conn->buf;
636  if (rx_cfg->magic == VCL_TEST_CFG_CTRL_MAGIC)
637  {
638  if (rx_cfg->verbose)
639  {
640  printf ("SERVER (fd %d): Received a cfg message!\n",
641  client_fd);
642  vcl_test_cfg_dump (rx_cfg, 0 /* is_client */ );
643  }
644 
645  if (rx_bytes != sizeof (*rx_cfg))
646  {
647  printf ("SERVER (fd %d): Invalid cfg message "
648  "size (%d)!\n Should be %lu bytes.\n",
649  client_fd, rx_bytes, sizeof (*rx_cfg));
650  conn->cfg.rxbuf_size = 0;
651  conn->cfg.num_writes = 0;
652  if (conn->cfg.verbose)
653  {
654  printf ("SERVER (fd %d): Replying to "
655  "cfg message!\n", client_fd);
656  vcl_test_cfg_dump (rx_cfg, 0 /* is_client */ );
657  }
658  sock_test_write (client_fd, (uint8_t *) & conn->cfg,
659  sizeof (conn->cfg), NULL,
660  conn->cfg.verbose);
661  continue;
662  }
663 
664  switch (rx_cfg->test)
665  {
666  case VCL_TEST_TYPE_NONE:
667  sync_config_and_reply (conn, rx_cfg);
668  break;
669 
670  case VCL_TEST_TYPE_ECHO:
672  goto done;
673  sync_config_and_reply (conn, rx_cfg);
674  break;
675 
676  case VCL_TEST_TYPE_BI:
677  case VCL_TEST_TYPE_UNI:
678  stream_test_server_start_stop (conn, rx_cfg);
679  break;
680 
681  case VCL_TEST_TYPE_EXIT:
682  printf ("SERVER: Have a great day, "
683  "connection %d!\n", client_fd);
684  close (client_fd);
685  conn_pool_free (conn);
686  printf ("SERVER: Closed client fd %d\n", client_fd);
687  ssm->nfds--;
688  if (!ssm->nfds)
689  {
690  printf ("SERVER: All client connections "
691  "closed.\n\nSERVER: "
692  "May the force be with you!\n\n");
693  goto done;
694  }
695  break;
696 
697  default:
698  fprintf (stderr,
699  "SERVER: ERROR: Unknown test type!\n");
700  vcl_test_cfg_dump (rx_cfg, 0 /* is_client */ );
701  break;
702  }
703  continue;
704  }
705 
706  else if ((conn->cfg.test == VCL_TEST_TYPE_UNI) ||
707  (conn->cfg.test == VCL_TEST_TYPE_BI))
708  {
709  stream_test_server (conn, rx_bytes);
710  if (ioctl (conn->fd, FIONREAD))
711  goto read_again;
712  continue;
713  }
714 
715  else if (isascii (conn->buf[0]))
716  {
717  // If it looks vaguely like a string, make sure it's terminated
718  ((char *) conn->buf)[rx_bytes <
719  conn->buf_size ? rx_bytes :
720  conn->buf_size - 1] = 0;
721  printf ("SERVER (fd %d): RX (%d bytes) - '%s'\n",
722  conn->fd, rx_bytes, conn->buf);
723  }
724  }
725  else // rx_bytes < 0
726  {
727  if (errno == ECONNRESET)
728  {
729  printf ("\nSERVER: Connection reset by remote peer.\n"
730  " Y'all have a great day now!\n\n");
731  break;
732  }
733  else
734  continue;
735  }
736 
737  if (isascii (conn->buf[0]))
738  {
739  /* If it looks vaguely like a string,
740  * make sure it's terminated
741  */
742  ((char *) conn->buf)[rx_bytes <
743  conn->buf_size ? rx_bytes :
744  conn->buf_size - 1] = 0;
745  if (xtra)
746  fprintf (stderr, "SERVER: ERROR: "
747  "FIFO not drained in previous test!\n"
748  " extra chunks %u (0x%x)\n"
749  " extra bytes %lu (0x%lx)\n",
750  xtra, xtra, xtra_bytes, xtra_bytes);
751 
752  xtra = 0;
753  xtra_bytes = 0;
754 
755  if (conn->cfg.verbose)
756  printf ("SERVER (fd %d): Echoing back\n", client_fd);
757 
758  nbytes = strlen ((const char *) conn->buf) + 1;
759 
760  tx_bytes = sock_test_write (client_fd, conn->buf,
761  nbytes, &conn->stats,
762  conn->cfg.verbose);
763  if (tx_bytes >= 0)
764  printf ("SERVER (fd %d): TX (%d bytes) - '%s'\n",
765  conn->fd, tx_bytes, conn->buf);
766  }
767 
768  else // Extraneous read data from non-echo tests???
769  {
770  xtra++;
771  xtra_bytes += rx_bytes;
772  }
773  }
774  }
775  }
776 
777 done:
778  close (ssm->listen_fd);
779  close (ssm->af_unix_listen_fd);
780  unlink ((const char *) SOCK_TEST_AF_UNIX_FILENAME);
781 
782  if (ssm->conn_pool)
783  free (ssm->conn_pool);
784 
785  return main_rv;
786 }
787 
788 /*
789  * fd.io coding-style-patch-verification: ON
790  *
791  * Local Variables:
792  * eval: (c-set-style "gnu")
793  * End:
794  */
static void new_client(void)
static int sock_test_read(int fd, uint8_t *buf, uint32_t nbytes, vcl_test_stats_t *stats)
Definition: sock_test.h:33
static void conn_pool_expand(size_t expand_size)
struct timespec stop
Definition: vcl_test.h:111
#define SOCK_TEST_AF_UNIX_ACCEPT_DATA
Definition: sock_test.h:27
Optimized string handling code, including c11-compliant "safe C library" variants.
static void sync_config_and_reply(sock_server_conn_t *conn, vcl_test_cfg_t *rx_cfg)
static void conn_pool_free(sock_server_conn_t *conn)
struct sockaddr_un serveraddr
#define VCL_TEST_SERVER_PORT
Definition: vcl_test.h:59
struct timespec start
Definition: vcl_test.h:110
uint64_t num_writes
Definition: vcl_test.h:96
vcl_test_t
Definition: vcl_test.h:73
#define SOCK_TEST_BANNER_STRING
Definition: sock_test.h:29
#define SOCK_TEST_AF_UNIX_FILENAME
Definition: sock_test.h:25
uint64_t txbuf_size
Definition: vcl_test.h:95
static void vcl_test_stats_dump(char *header, vcl_test_stats_t *stats, uint8_t show_rx, uint8_t show_tx, uint8_t verbose)
Definition: vcl_test.h:326
static int sock_test_write(int fd, uint8_t *buf, uint32_t nbytes, vcl_test_stats_t *stats, uint32_t verbose)
Definition: sock_test.h:70
#define SOCK_SERVER_MAX_TEST_CONN
uint32_t verbose
Definition: vcl_test.h:91
#define VCL_TEST_SEPARATOR_STRING
Definition: vcl_test.h:71
static void vcl_test_cfg_dump(vcl_test_cfg_t *cfg, uint8_t is_client)
Definition: vcl_test.h:288
struct epoll_event listen_ev
static void stream_test_server_start_stop(sock_server_conn_t *conn, vcl_test_cfg_t *rx_cfg)
#define VCL_TEST_CFG_CTRL_MAGIC
Definition: vcl_test.h:62
vcl_test_cfg_t cfg
struct epoll_event af_unix_listen_ev
svmdb_client_t * c
sock_server_main_t sock_server_main
sll srl srl sll sra u16x4 i
Definition: vector_sse42.h:317
uint64_t rxbuf_size
Definition: vcl_test.h:94
static void vcl_test_cfg_init(vcl_test_cfg_t *cfg)
Definition: vcl_test.h:200
vcl_test_stats_t stats
uint32_t magic
Definition: vcl_test.h:84
static void vcl_test_buf_alloc(vcl_test_cfg_t *cfg, uint8_t is_rxbuf, uint8_t **buf, uint32_t *bufsize)
Definition: vcl_test.h:229
uint32_t ctrl_handle
Definition: vcl_test.h:87
#define SOCK_TEST_MIXED_EPOLL_DATA
Definition: sock_test.h:26
static sock_server_conn_t * conn_pool_alloc(void)
void print_usage_and_exit(void)
static void af_unix_echo(void)
sock_server_cfg_t cfg
int main(int argc, char **argv)
u16 port
Definition: lb_types.api:72
uint32_t test
Definition: vcl_test.h:86
#define SOCK_SERVER_MAX_EPOLL_EVENTS
static void vcl_test_stats_accumulate(vcl_test_stats_t *accum, vcl_test_stats_t *incr)
Definition: vcl_test.h:187
struct epoll_event wait_events[SOCK_SERVER_MAX_EPOLL_EVENTS]
sock_server_conn_t * conn_pool
static int socket_server_echo_af_unix_init(sock_server_main_t *ssm)
uint64_t rx_bytes
Definition: vcl_test.h:103
static void stream_test_server(sock_server_conn_t *conn, int rx_bytes)
uint64_t total_bytes
Definition: vcl_test.h:97