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2019-03-29tests: refactor vpp_object.pyPaul Vinciguerra1-3/+22
Move __str__ to super for all subclasses of VppObject Implement __repr__ in VppObject Implement __hash__ and __eq__ Change-Id: Ibd4ea37b84b17f499ab86630fb5b9ed9c8b4b1c2 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2019-02-26VPP-1508 Python3 abstract classesPaul Vinciguerra1-6/+7
Update the syntax to support abstract classes in python 2 and python 3. Depends on: new style classes -- https://gerrit.fd.io/r/16166 Change-Id: Iad2c1240149f38b3faca1b37ab95d3d210e1daee Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2018-11-27VPP-1508 Fix for bug introduced in tests on use of repr.Paul Vinciguerra1-2/+2
This fixes the change from https://gerrit.fd.io/r/#/c/16175/ ... ====== Totals ====== Ran: 856 tests in 2123.0000 sec. - Passed: 667 - Skipped: 157 - Expected Fail: 0 - Unexpected Success: 0 - Failed: 32 Sum of execute time for each test: 1641.0832 sec. ============== Worker Balance ============== - Worker 0 (416 tests) => 0:35:06.788054 - Worker 1 (440 tests) => 0:31:13.814911 Test id Runtime (s) -------------------------------------------------------------------------------------- ----------- test.test_vcl.VCLCutThruTestCase.test_ldp_cut_thru_bi_dir_nsock 120.382 test.test_vcl.VCLThruHostStackGroupBTestCase.test_ldp_thru_host_stack_bi_dir_nsock 60.368 test.test_vcl.VCLIpv6ThruHostStackGroupBTestCase.test_ldp_thru_host_stack_bi_dir_nsock 60.356 test.test_igmp.TestIgmp.test_igmp_host 47.411 test.test_reassembly.TestFIFReassembly.test_fif6 38.561 test.test_reassembly.TestFIFReassembly.test_fif4 37.045 test.test_gbp.TestGBP.test_gbp 30.041 test.test_dhcp.TestDHCP.test_dhcp_proxy 29.339 test.test_vcl.VCLCutThruTestCase.test_ldp_cut_thru_iperf3 20.489 test.test_neighbor.ARPTestCase.test_arp 19.004 Change-Id: Ic1565f14962f157d5041230de3aeeab0b85f21e1 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2018-11-25VPP-1508 python3 tests: python3 repr.Paul Vinciguerra1-1/+3
Use six.reprlib. Uses repr for python 2 and reprlib for python 3. Change-Id: Ia343a492d533bd511ed57166381e10a37e452d36 Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
2018-02-06BIER: fix support for longer bit-string lengthsNeale Ranns1-4/+3
Change-Id: I2421197b76be58099e5f8ed5554410adff202109 Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
2017-03-06make test: reset object registry if vpp diesKlement Sekera1-2/+7
Change-Id: If0e30837e07a21f3912676f5147cb242d3d2b235 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-03-02BFD: command line interfaceKlement Sekera1-0/+1
Implement command line interface to the BFD binary APIs. Add corresponding unit tests. Change-Id: Ia0542d0bc4c8d78e6f7b777a08fd94ebfe4d524f Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-02-14make test: improve stabilityKlement Sekera1-18/+17
Disable automatic garbage collection and run it manually before running each test case to minimize stalls. Improve vpp subprocess cleanup. Reduce helper thread count to one and properly clean that thread once it's not needed. Change-Id: I3ea78ed9628552b5ef3ff29cc7bcf2d3fc42f2c3 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2017-01-11BFD: fix bfd_udp_add APIKlement Sekera1-9/+12
Fix reporting of bs_index in the return message. Enhance test suite to cover this case. Change-Id: I37d35b850818bc1a05abe67ca919c22aeac978b6 Signed-off-by: Klement Sekera <ksekera@cisco.com>
2016-12-07BFD: basic asynchronous session up/downKlement Sekera1-0/+79
This is a work-in-progress basic BFD session handling. Only asynchronous mode is supported at the moment. Setting the session flags doesn't work. Change-Id: Idba27f721b5c35be5a66a6d202a63d23ff7ecf6f Signed-off-by: Klement Sekera <ksekera@cisco.com>
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/*
 * Copyright (c) 2017-2018 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <unistd.h>
#include <errno.h>
#include <stdlib.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <stdio.h>
#include <time.h>
#include <arpa/inet.h>
#include <vcl/vcl_test.h>

typedef struct
{
  vppcom_endpt_t server_endpt;
  struct sockaddr_storage server_addr;
  uint32_t server_addr_size;
  uint32_t cfg_seq_num;
  sock_test_socket_t ctrl_socket;
  sock_test_socket_t *test_socket;
  uint32_t num_test_sockets;
  uint8_t dump_cfg;
} sock_client_main_t;

sock_client_main_t sock_client_main;


static int
sock_test_cfg_sync (sock_test_socket_t * socket)
{
  sock_client_main_t *scm = &sock_client_main;
  sock_test_socket_t *ctrl = &scm->ctrl_socket;
  sock_test_cfg_t *rl_cfg = (sock_test_cfg_t *) socket->rxbuf;
  int rx_bytes, tx_bytes;

  if (socket->cfg.verbose)
    sock_test_cfg_dump (&socket->cfg, 1 /* is_client */ );

  ctrl->cfg.seq_num = ++scm->cfg_seq_num;
  if (socket->cfg.verbose)
    {
      printf ("CLIENT (fd %d): Sending config sent to server.\n", socket->fd);
      sock_test_cfg_dump (&ctrl->cfg, 1 /* is_client */ );
    }
  tx_bytes = vcl_test_write (socket->fd, (uint8_t *) & ctrl->cfg,
			     sizeof (ctrl->cfg), NULL, ctrl->cfg.verbose);
  if (tx_bytes < 0)
    {
      fprintf (stderr, "CLIENT (fd %d): ERROR: write test cfg failed (%d)!\n",
	       socket->fd, tx_bytes);
      return tx_bytes;
    }

  rx_bytes = vcl_test_read (socket->fd, (uint8_t *) socket->rxbuf,
			    sizeof (sock_test_cfg_t), NULL);
  if (rx_bytes < 0)
    return rx_bytes;

  if (rl_cfg->magic != SOCK_TEST_CFG_CTRL_MAGIC)
    {
      fprintf (stderr, "CLIENT (fd %d): ERROR: Bad server reply cfg "
	       "-- aborting!\n", socket->fd);
      return -1;
    }
  if ((rx_bytes != sizeof (sock_test_cfg_t))
      || !sock_test_cfg_verify (rl_cfg, &ctrl->cfg))
    {
      fprintf (stderr, "CLIENT (fd %d): ERROR: Invalid config received "
	       "from server!\n", socket->fd);
      if (rx_bytes != sizeof (sock_test_cfg_t))
	{
	  fprintf (stderr, "\tRx bytes %d != cfg size %lu\n",
		   rx_bytes, sizeof (sock_test_cfg_t));
	}
      else
	{
	  sock_test_cfg_dump (rl_cfg, 1 /* is_client */ );
	  fprintf (stderr, "CLIENT (fd %d): Valid config sent to server.\n",
		   socket->fd);
	  sock_test_cfg_dump (&ctrl->cfg, 1 /* is_client */ );
	}
      return -1;
    }
  else if (socket->cfg.verbose)
    {
      printf ("CLIENT (fd %d): Got config back from server.\n", socket->fd);
      sock_test_cfg_dump (rl_cfg, 1 /* is_client */ );
    }
  ctrl->cfg.ctrl_handle = ((ctrl->cfg.ctrl_handle == ~0) ?
			   rl_cfg->ctrl_handle : ctrl->cfg.ctrl_handle);

  return 0;
}

static void
echo_test_client ()
{
  sock_client_main_t *scm = &sock_client_main;
  sock_test_socket_t *ctrl = &scm->ctrl_socket;
  sock_test_socket_t *tsock;
  int rx_bytes, tx_bytes, nbytes;
  uint32_t i, n;
  int rv;
  int nfds = 0;
  fd_set wr_fdset, rd_fdset;
  fd_set _wfdset, *wfdset = &_wfdset;
  fd_set _rfdset, *rfdset = &_rfdset;

  FD_ZERO (&wr_fdset);
  FD_ZERO (&rd_fdset);
  memset (&ctrl->stats, 0, sizeof (ctrl->stats));
  ctrl->cfg.total_bytes = nbytes = strlen (ctrl->txbuf) + 1;
  for (n = 0; n != ctrl->cfg.num_test_sockets; n++)
    {
      tsock = &scm->test_socket[n];
      tsock->cfg = ctrl->cfg;
      sock_test_socket_buf_alloc (tsock);
      if (sock_test_cfg_sync (tsock))
	return;

      memcpy (tsock->txbuf, ctrl->txbuf, nbytes);
      memset (&tsock->stats, 0, sizeof (tsock->stats));

      FD_SET (tsock->fd, &wr_fdset);
      FD_SET (tsock->fd, &rd_fdset);
      nfds = ((tsock->fd + 1) > nfds) ? (tsock->fd + 1) : nfds;
    }

  nfds++;
  clock_gettime (CLOCK_REALTIME, &ctrl->stats.start);
  while (n)
    {
      _wfdset = wr_fdset;
      _rfdset = rd_fdset;

      rv = vppcom_select (nfds, (uint64_t *) rfdset, (uint64_t *) wfdset,
			  NULL, 0);
      if (rv < 0)
	{
	  perror ("select()");
	  fprintf (stderr, "\nCLIENT: ERROR: select() failed -- "
		   "aborting test!\n");
	  return;
	}
      else if (rv == 0)
	continue;

      for (i = 0; i < ctrl->cfg.num_test_sockets; i++)
	{
	  tsock = &scm->test_socket[i];
	  if (!((tsock->stats.stop.tv_sec == 0) &&
		(tsock->stats.stop.tv_nsec == 0)))
	    continue;

	  if (FD_ISSET (tsock->fd, wfdset) &&
	      (tsock->stats.tx_bytes < ctrl->cfg.total_bytes))

	    {
	      tx_bytes =
		vcl_test_write (tsock->fd, (uint8_t *) tsock->txbuf, nbytes,
				&tsock->stats, ctrl->cfg.verbose);
	      if (tx_bytes < 0)
		{
		  fprintf (stderr, "\nCLIENT: ERROR: vcl_test_write(%d) "
			   "failed -- aborting test!\n", tsock->fd);
		  return;
		}

	      printf ("CLIENT (fd %d): TX (%d bytes) - '%s'\n",
		      tsock->fd, tx_bytes, tsock->txbuf);
	    }

	  if ((FD_ISSET (tsock->fd, rfdset)) &&
	      (tsock->stats.rx_bytes < ctrl->cfg.total_bytes))
	    {
	      rx_bytes =
		vcl_test_read (tsock->fd, (uint8_t *) tsock->rxbuf,
			       nbytes, &tsock->stats);
	      if (rx_bytes > 0)
		{
		  printf ("CLIENT (fd %d): RX (%d bytes) - '%s'\n",
			  tsock->fd, rx_bytes, tsock->rxbuf);

		  if (tsock->stats.rx_bytes != tsock->stats.tx_bytes)
		    printf ("CLIENT: WARNING: bytes read (%lu) "
			    "!= bytes written (%lu)!\n",
			    tsock->stats.rx_bytes, tsock->stats.tx_bytes);
		}
	    }

	  if (tsock->stats.rx_bytes >= ctrl->cfg.total_bytes)
	    {
	      clock_gettime (CLOCK_REALTIME, &tsock->stats.stop);
	      n--;
	    }
	}
    }
  clock_gettime (CLOCK_REALTIME, &ctrl->stats.stop);

  for (i = 0; i < ctrl->cfg.num_test_sockets; i++)
    {
      tsock = &scm->test_socket[i];
      tsock->stats.start = ctrl->stats.start;

      if (ctrl->cfg.verbose)
	{
	  static char buf[64];

	  sprintf (buf, "CLIENT (fd %d) RESULTS", tsock->fd);
	  sock_test_stats_dump (buf, &tsock->stats,
				1 /* show_rx */ , 1 /* show tx */ ,
				ctrl->cfg.verbose);
	}

      sock_test_stats_accumulate (&ctrl->stats, &tsock->stats);
    }

  if (ctrl->cfg.verbose)
    {
      sock_test_stats_dump ("CLIENT RESULTS", &ctrl->stats,
			    1 /* show_rx */ , 1 /* show tx */ ,
			    ctrl->cfg.verbose);
      sock_test_cfg_dump (&ctrl->cfg, 1 /* is_client */ );

      if (ctrl->cfg.verbose > 1)
	{
	  printf ("  ctrl socket info\n"
		  SOCK_TEST_SEPARATOR_STRING
		  "          fd:  %d (0x%08x)\n"
		  "       rxbuf:  %p\n"
		  "  rxbuf size:  %u (0x%08x)\n"
		  "       txbuf:  %p\n"
		  "  txbuf size:  %u (0x%08x)\n"
		  SOCK_TEST_SEPARATOR_STRING,
		  ctrl->fd, (uint32_t) ctrl->fd,
		  ctrl->rxbuf, ctrl->rxbuf_size, ctrl->rxbuf_size,
		  ctrl->txbuf, ctrl->txbuf_size, ctrl->txbuf_size);
	}
    }
}

static void
stream_test_client (sock_test_t test)
{
  sock_client_main_t *scm = &sock_client_main;
  sock_test_socket_t *ctrl = &scm->ctrl_socket;
  sock_test_socket_t *tsock;
  int tx_bytes;
  uint32_t i, n;
  int rv;
  int nfds = 0;
  fd_set wr_fdset, rd_fdset;
  fd_set _wfdset, *wfdset = &_wfdset;
  fd_set _rfdset, *rfdset = (test == SOCK_TEST_TYPE_BI) ? &_rfdset : 0;

  ctrl->cfg.total_bytes = ctrl->cfg.num_writes * ctrl->cfg.txbuf_size;
  ctrl->cfg.ctrl_handle = ~0;

  printf ("\n" SOCK_TEST_BANNER_STRING
	  "CLIENT (fd %d): %s-directional Stream Test!\n\n"
	  "CLIENT (fd %d): Sending config to server on ctrl socket...\n",
	  ctrl->fd, test == SOCK_TEST_TYPE_BI ? "Bi" : "Uni", ctrl->fd);

  if (sock_test_cfg_sync (ctrl))
    {
      fprintf (stderr, "CLIENT: ERROR: test cfg sync failed -- aborting!");
      return;
    }

  FD_ZERO (&wr_fdset);
  FD_ZERO (&rd_fdset);
  memset (&ctrl->stats, 0, sizeof (ctrl->stats));
  for (n = 0; n != ctrl->cfg.num_test_sockets; n++)
    {
      tsock = &scm->test_socket[n];
      tsock->cfg = ctrl->cfg;
      sock_test_socket_buf_alloc (tsock);
      printf ("CLIENT (fd %d): Sending config to server on "
	      "test socket %d...\n", tsock->fd, n);
      sock_test_cfg_sync (tsock);

      /* Fill payload with incrementing uint32's */
      for (i = 0; i < tsock->txbuf_size; i++)
	tsock->txbuf[i] = i & 0xff;

      memset (&tsock->stats, 0, sizeof (tsock->stats));
      FD_SET (tsock->fd, &wr_fdset);
      FD_SET (tsock->fd, &rd_fdset);
      nfds = ((tsock->fd + 1) > nfds) ? (tsock->fd + 1) : nfds;
    }

  nfds++;
  clock_gettime (CLOCK_REALTIME, &ctrl->stats.start);
  while (n)
    {
      _wfdset = wr_fdset;
      _rfdset = rd_fdset;

      rv = vppcom_select (nfds, (uint64_t *) rfdset, (uint64_t *) wfdset,
			  NULL, 0);
      if (rv < 0)
	{
	  perror ("select()");
	  fprintf (stderr, "\nCLIENT: ERROR: select() failed -- "
		   "aborting test!\n");
	  return;
	}
      else if (rv == 0)
	continue;

      for (i = 0; i < ctrl->cfg.num_test_sockets; i++)
	{
	  tsock = &scm->test_socket[i];
	  if (!((tsock->stats.stop.tv_sec == 0) &&
		(tsock->stats.stop.tv_nsec == 0)))
	    continue;

	  if ((test == SOCK_TEST_TYPE_BI) &&
	      FD_ISSET (tsock->fd, rfdset) &&
	      (tsock->stats.rx_bytes < ctrl->cfg.total_bytes))
	    {
	      (void) vcl_test_read (tsock->fd,
				    (uint8_t *) tsock->rxbuf,
				    tsock->rxbuf_size, &tsock->stats);
	    }

	  if (FD_ISSET (tsock->fd, wfdset) &&
	      (tsock->stats.tx_bytes < ctrl->cfg.total_bytes))
	    {
	      tx_bytes =
		vcl_test_write (tsock->fd, (uint8_t *) tsock->txbuf,
				ctrl->cfg.txbuf_size, &tsock->stats,
				ctrl->cfg.verbose);
	      if (tx_bytes < 0)
		{
		  fprintf (stderr, "\nCLIENT: ERROR: vcl_test_write(%d) "
			   "failed -- aborting test!\n", tsock->fd);
		  return;
		}
	    }

	  if (((test == SOCK_TEST_TYPE_UNI) &&
	       (tsock->stats.tx_bytes >= ctrl->cfg.total_bytes)) ||
	      ((test == SOCK_TEST_TYPE_BI) &&
	       (tsock->stats.rx_bytes >= ctrl->cfg.total_bytes)))
	    {
	      clock_gettime (CLOCK_REALTIME, &tsock->stats.stop);
	      n--;
	    }
	}
    }
  clock_gettime (CLOCK_REALTIME, &ctrl->stats.stop);

  printf ("CLIENT (fd %d): Sending config to server on ctrl socket...\n",
	  ctrl->fd);

  if (sock_test_cfg_sync (ctrl))
    {
      fprintf (stderr, "CLIENT: ERROR: test cfg sync failed -- aborting!");
      return;
    }

  for (i = 0; i < ctrl->cfg.num_test_sockets; i++)
    {
      tsock = &scm->test_socket[i];

      if (ctrl->cfg.verbose)
	{
	  static char buf[64];

	  sprintf (buf, "CLIENT (fd %d) RESULTS", tsock->fd);
	  sock_test_stats_dump (buf, &tsock->stats,
				test == SOCK_TEST_TYPE_BI /* show_rx */ ,
				1 /* show tx */ , ctrl->cfg.verbose);
	}

      sock_test_stats_accumulate (&ctrl->stats, &tsock->stats);
    }

  sock_test_stats_dump ("CLIENT RESULTS", &ctrl->stats,
			test == SOCK_TEST_TYPE_BI /* show_rx */ ,
			1 /* show tx */ , ctrl->cfg.verbose);
  sock_test_cfg_dump (&ctrl->cfg, 1 /* is_client */ );

  if (ctrl->cfg.verbose)
    {
      printf ("  ctrl socket info\n"
	      SOCK_TEST_SEPARATOR_STRING
	      "          fd:  %d (0x%08x)\n"
	      "       rxbuf:  %p\n"
	      "  rxbuf size:  %u (0x%08x)\n"
	      "       txbuf:  %p\n"
	      "  txbuf size:  %u (0x%08x)\n"
	      SOCK_TEST_SEPARATOR_STRING,
	      ctrl->fd, (uint32_t) ctrl->fd,
	      ctrl->rxbuf, ctrl->rxbuf_size, ctrl->rxbuf_size,
	      ctrl->txbuf, ctrl->txbuf_size, ctrl->txbuf_size);
    }

  ctrl->cfg.test = SOCK_TEST_TYPE_ECHO;
  if (sock_test_cfg_sync (ctrl))
    fprintf (stderr, "CLIENT: ERROR: post-test cfg sync failed!");

  printf ("CLIENT (fd %d): %s-directional Stream Test Complete!\n"
	  SOCK_TEST_BANNER_STRING "\n", ctrl->fd,
	  test == SOCK_TEST_TYPE_BI ? "Bi" : "Uni");
}

static void
exit_client (void)
{
  sock_client_main_t *scm = &sock_client_main;
  sock_test_socket_t *ctrl = &scm->ctrl_socket;
  sock_test_socket_t *tsock;
  int i;

  for (i = 0; i < ctrl->cfg.num_test_sockets; i++)
    {
      tsock = &scm->test_socket[i];
      tsock->cfg.test = SOCK_TEST_TYPE_EXIT;

      /* coverity[COPY_PASTE_ERROR] */
      if (ctrl->cfg.verbose)
	{
	  printf ("\nCLIENT (fd %d): Sending exit cfg to server...\n",
		  tsock->fd);
	  sock_test_cfg_dump (&tsock->cfg, 1 /* is_client */ );
	}
      (void) vcl_test_write (tsock->fd, (uint8_t *) & tsock->cfg,
			     sizeof (tsock->cfg), &tsock->stats,
			     ctrl->cfg.verbose);
    }

  ctrl->cfg.test = SOCK_TEST_TYPE_EXIT;
  if (ctrl->cfg.verbose)
    {
      printf ("\nCLIENT (fd %d): Sending exit cfg to server...\n", ctrl->fd);
      sock_test_cfg_dump (&ctrl->cfg, 1 /* is_client */ );
    }
  (void) vcl_test_write (ctrl->fd, (uint8_t *) & ctrl->cfg,
			 sizeof (ctrl->cfg), &ctrl->stats, ctrl->cfg.verbose);
  printf ("\nCLIENT: So long and thanks for all the fish!\n\n");
  sleep (1);
}

static int
sock_test_connect_test_sockets (uint32_t num_test_sockets)
{
  sock_client_main_t *scm = &sock_client_main;
  sock_test_socket_t *ctrl = &scm->ctrl_socket;
  sock_test_socket_t *tsock;
  int i, rv, errno_val;

  if (num_test_sockets < 1)
    {
      errno = EINVAL;
      return -1;
    }

  if (num_test_sockets < scm->num_test_sockets)
    {
      for (i = scm->num_test_sockets - 1; i >= num_test_sockets; i--)
	{
	  tsock = &scm->test_socket[i];
	  vppcom_session_close (tsock->fd);
	  free (tsock->txbuf);
	  free (tsock->rxbuf);
	}
    }

  else if (num_test_sockets > scm->num_test_sockets)
    {
      tsock = realloc (scm->test_socket,
		       sizeof (sock_test_socket_t) * num_test_sockets);
      if (!tsock)
	{
	  errno_val = errno;
	  perror ("ERROR in sock_test_connect_test_sockets()");
	  fprintf (stderr, "CLIENT: ERROR: socket failed (errno = %d)!\n",
		   errno_val);
	  return -1;
	}

      if (!scm->test_socket)
	memset (tsock, 0, sizeof (*tsock));

      scm->test_socket = tsock;
      for (i = scm->num_test_sockets; i < num_test_sockets; i++)
	{
	  tsock = &scm->test_socket[i];
	  tsock->fd = vppcom_session_create (ctrl->cfg.transport_udp ?
					     VPPCOM_PROTO_UDP :
					     VPPCOM_PROTO_TCP,
					     1 /* is_nonblocking */ );
	  if (tsock->fd < 0)
	    {
	      errno = -tsock->fd;
	      tsock->fd = -1;
	    }
	  if (tsock->fd < 0)
	    {
	      errno_val = errno;
	      perror ("ERROR in sock_test_connect_test_sockets()");
	      fprintf (stderr, "CLIENT: ERROR: socket failed (errno = %d)!\n",
		       errno_val);
	      return tsock->fd;
	    }

	  rv = vppcom_session_connect (tsock->fd, &scm->server_endpt);
	  if (rv)
	    {
	      errno = -rv;
	      rv = -1;
	    }
	  if (rv < 0)
	    {
	      errno_val = errno;
	      perror ("ERROR in sock_test_connect_test_sockets()");
	      fprintf (stderr, "CLIENT: ERROR: connect failed "
		       "(errno = %d)!\n", errno_val);
	      return -1;
	    }
	  tsock->cfg = ctrl->cfg;
	  sock_test_socket_buf_alloc (tsock);
	  sock_test_cfg_sync (tsock);

	  printf ("CLIENT (fd %d): Test socket %d connected.\n",
		  tsock->fd, i);
	}
    }

  scm->num_test_sockets = num_test_sockets;
  printf ("CLIENT: All sockets (%d) connected!\n", scm->num_test_sockets + 1);
  return 0;
}

static void
dump_help (void)
{
#define INDENT "\n  "

  printf ("CLIENT: Test configuration commands:"
	  INDENT SOCK_TEST_TOKEN_HELP
	  "\t\t\tDisplay help."
	  INDENT SOCK_TEST_TOKEN_EXIT
	  "\t\t\tExit test client & server."
	  INDENT SOCK_TEST_TOKEN_SHOW_CFG
	  "\t\t\tShow the current test cfg."
	  INDENT SOCK_TEST_TOKEN_RUN_UNI
	  "\t\t\tRun the Uni-directional test."
	  INDENT SOCK_TEST_TOKEN_RUN_BI
	  "\t\t\tRun the Bi-directional test."
	  INDENT SOCK_TEST_TOKEN_VERBOSE
	  "\t\t\tToggle verbose setting."
	  INDENT SOCK_TEST_TOKEN_RXBUF_SIZE
	  "<rxbuf size>\tRx buffer size (bytes)."
	  INDENT SOCK_TEST_TOKEN_TXBUF_SIZE
	  "<txbuf size>\tTx buffer size (bytes)."
	  INDENT SOCK_TEST_TOKEN_NUM_WRITES
	  "<# of writes>\tNumber of txbuf writes to server." "\n");
}

static void
cfg_txbuf_size_set (void)
{
  sock_client_main_t *scm = &sock_client_main;
  sock_test_socket_t *ctrl = &scm->ctrl_socket;
  char *p = ctrl->txbuf + strlen (SOCK_TEST_TOKEN_TXBUF_SIZE);
  uint64_t txbuf_size = strtoull ((const char *) p, NULL, 10);

  if (txbuf_size >= SOCK_TEST_CFG_BUF_SIZE_MIN)
    {
      ctrl->cfg.txbuf_size = txbuf_size;
      ctrl->cfg.total_bytes = ctrl->cfg.num_writes * ctrl->cfg.txbuf_size;
      sock_test_buf_alloc (&ctrl->cfg, 0 /* is_rxbuf */ ,
			   (uint8_t **) & ctrl->txbuf, &ctrl->txbuf_size);
      sock_test_cfg_dump (&ctrl->cfg, 1 /* is_client */ );
    }
  else
    fprintf (stderr, "CLIENT: ERROR: Invalid txbuf size (%lu) < "
	     "minimum buf size (%u)!\n",
	     txbuf_size, SOCK_TEST_CFG_BUF_SIZE_MIN);
}

static void
cfg_num_writes_set (void)
{
  sock_client_main_t *scm = &sock_client_main;
  sock_test_socket_t *ctrl = &scm->ctrl_socket;
  char *p = ctrl->txbuf + strlen (SOCK_TEST_TOKEN_NUM_WRITES);
  uint32_t num_writes = strtoul ((const char *) p, NULL, 10);

  if (num_writes > 0)
    {
      ctrl->cfg.num_writes = num_writes;
      ctrl->cfg.total_bytes = ctrl->cfg.num_writes * ctrl->cfg.txbuf_size;
      sock_test_cfg_dump (&ctrl->cfg, 1 /* is_client */ );
    }
  else
    {
      fprintf (stderr, "CLIENT: ERROR: invalid num writes: %u\n", num_writes);
    }
}

static void
cfg_num_test_sockets_set (void)
{
  sock_client_main_t *scm = &sock_client_main;
  sock_test_socket_t *ctrl = &scm->ctrl_socket;
  char *p = ctrl->txbuf + strlen (SOCK_TEST_TOKEN_NUM_TEST_SCKTS);
  uint32_t num_test_sockets = strtoul ((const char *) p, NULL, 10);

  if ((num_test_sockets > 0) &&
      (num_test_sockets <= SOCK_TEST_CFG_MAX_TEST_SCKTS))
    {
      ctrl->cfg.num_test_sockets = num_test_sockets;
      sock_test_connect_test_sockets (num_test_sockets);

      sock_test_cfg_dump (&ctrl->cfg, 1 /* is_client */ );
    }
  else
    {
      fprintf (stderr, "CLIENT: ERROR: invalid num test sockets: "
	       "%u, (%d max)\n",
	       num_test_sockets, SOCK_TEST_CFG_MAX_TEST_SCKTS);
    }
}

static void
cfg_rxbuf_size_set (void)
{
  sock_client_main_t *scm = &sock_client_main;
  sock_test_socket_t *ctrl = &scm->ctrl_socket;
  char *p = ctrl->txbuf + strlen (SOCK_TEST_TOKEN_RXBUF_SIZE);
  uint64_t rxbuf_size = strtoull ((const char *) p, NULL, 10);

  if (rxbuf_size >= SOCK_TEST_CFG_BUF_SIZE_MIN)
    {
      ctrl->cfg.rxbuf_size = rxbuf_size;
      sock_test_buf_alloc (&ctrl->cfg, 1 /* is_rxbuf */ ,
			   (uint8_t **) & ctrl->rxbuf, &ctrl->rxbuf_size);
      sock_test_cfg_dump (&ctrl->cfg, 1 /* is_client */ );
    }
  else
    fprintf (stderr, "CLIENT: ERROR: Invalid rxbuf size (%lu) < "
	     "minimum buf size (%u)!\n",
	     rxbuf_size, SOCK_TEST_CFG_BUF_SIZE_MIN);
}

static void
cfg_verbose_toggle (void)
{
  sock_client_main_t *scm = &sock_client_main;
  sock_test_socket_t *ctrl = &scm->ctrl_socket;

  ctrl->cfg.verbose = ctrl->cfg.verbose ? 0 : 1;
  sock_test_cfg_dump (&ctrl->cfg, 1 /* is_client */ );

}

static sock_test_t
parse_input ()
{
  sock_client_main_t *scm = &sock_client_main;
  sock_test_socket_t *ctrl = &scm->ctrl_socket;
  sock_test_t rv = SOCK_TEST_TYPE_NONE;

  if (!strncmp (SOCK_TEST_TOKEN_EXIT, ctrl->txbuf,
		strlen (SOCK_TEST_TOKEN_EXIT)))
    rv = SOCK_TEST_TYPE_EXIT;

  else if (!strncmp (SOCK_TEST_TOKEN_HELP, ctrl->txbuf,
		     strlen (SOCK_TEST_TOKEN_HELP)))
    dump_help ();

  else if (!strncmp (SOCK_TEST_TOKEN_SHOW_CFG, ctrl->txbuf,
		     strlen (SOCK_TEST_TOKEN_SHOW_CFG)))
    scm->dump_cfg = 1;

  else if (!strncmp (SOCK_TEST_TOKEN_VERBOSE, ctrl->txbuf,
		     strlen (SOCK_TEST_TOKEN_VERBOSE)))
    cfg_verbose_toggle ();

  else if (!strncmp (SOCK_TEST_TOKEN_TXBUF_SIZE, ctrl->txbuf,
		     strlen (SOCK_TEST_TOKEN_TXBUF_SIZE)))
    cfg_txbuf_size_set ();

  else if (!strncmp (SOCK_TEST_TOKEN_NUM_TEST_SCKTS, ctrl->txbuf,
		     strlen (SOCK_TEST_TOKEN_NUM_TEST_SCKTS)))
    cfg_num_test_sockets_set ();

  else if (!strncmp (SOCK_TEST_TOKEN_NUM_WRITES, ctrl->txbuf,
		     strlen (SOCK_TEST_TOKEN_NUM_WRITES)))
    cfg_num_writes_set ();

  else if (!strncmp (SOCK_TEST_TOKEN_RXBUF_SIZE, ctrl->txbuf,
		     strlen (SOCK_TEST_TOKEN_RXBUF_SIZE)))
    cfg_rxbuf_size_set ();

  else if (!strncmp (SOCK_TEST_TOKEN_RUN_UNI, ctrl->txbuf,
		     strlen (SOCK_TEST_TOKEN_RUN_UNI)))
    rv = ctrl->cfg.test = SOCK_TEST_TYPE_UNI;

  else if (!strncmp (SOCK_TEST_TOKEN_RUN_BI, ctrl->txbuf,
		     strlen (SOCK_TEST_TOKEN_RUN_BI)))
    rv = ctrl->cfg.test = SOCK_TEST_TYPE_BI;

  else
    rv = SOCK_TEST_TYPE_ECHO;

  return rv;
}

void
print_usage_and_exit (void)
{
  fprintf (stderr,
	   "sock_test_client [OPTIONS] <ipaddr> <port>\n"
	   "  OPTIONS\n"
	   "  -h               Print this message and exit.\n"
	   "  -6               Use IPv6\n"
	   "  -u               Use UDP transport layer\n"
	   "  -c               Print test config before test.\n"
	   "  -w <dir>         Write test results to <dir>.\n"
	   "  -X               Exit after running test.\n"
	   "  -E               Run Echo test.\n"
	   "  -N <num-writes>  Test Cfg: number of writes.\n"
	   "  -R <rxbuf-size>  Test Cfg: rx buffer size.\n"
	   "  -T <txbuf-size>  Test Cfg: tx buffer size.\n"
	   "  -U               Run Uni-directional test.\n"
	   "  -B               Run Bi-directional test.\n"
	   "  -V               Verbose mode.\n");
  exit (1);
}

int
main (int argc, char **argv)
{
  sock_client_main_t *scm = &sock_client_main;
  sock_test_socket_t *ctrl = &scm->ctrl_socket;
  int c, rv, errno_val;
  sock_test_t post_test = SOCK_TEST_TYPE_NONE;

  sock_test_cfg_init (&ctrl->cfg);
  sock_test_socket_buf_alloc (ctrl);

  opterr = 0;
  while ((c = getopt (argc, argv, "chn:w:XE:I:N:R:T:UBV6D")) != -1)
    switch (c)
      {
      case 'c':
	scm->dump_cfg = 1;
	break;

      case 's':
	if (sscanf (optarg, "0x%x", &ctrl->cfg.num_test_sockets) != 1)
	  if (sscanf (optarg, "%u", &ctrl->cfg.num_test_sockets) != 1)
	    {
	      fprintf (stderr, "CLIENT: ERROR: Invalid value for "
		       "option -%c!\n", c);
	      print_usage_and_exit ();
	    }
	if (!ctrl->cfg.num_test_sockets ||
	    (ctrl->cfg.num_test_sockets > FD_SETSIZE))
	  {
	    fprintf (stderr, "CLIENT: ERROR: Invalid number of "
		     "sockets (%d) specified for option -%c!\n"
		     "       Valid range is 1 - %d\n",
		     ctrl->cfg.num_test_sockets, c, FD_SETSIZE);
	    print_usage_and_exit ();
	  }
	break;

      case 'w':
	fprintf (stderr, "CLIENT: Writing test results to files is TBD.\n");
	break;

      case 'X':
	post_test = SOCK_TEST_TYPE_EXIT;
	break;

      case 'E':
	if (strlen (optarg) > ctrl->txbuf_size)
	  {
	    fprintf (stderr, "CLIENT: ERROR: Option -%c value "
		     "larger than txbuf size (%d)!\n",
		     optopt, ctrl->txbuf_size);
	    print_usage_and_exit ();
	  }
	strcpy (ctrl->txbuf, optarg);
	ctrl->cfg.test = SOCK_TEST_TYPE_ECHO;
	break;

      case 'I':
	if (sscanf (optarg, "0x%x", &ctrl->cfg.num_test_sockets) != 1)
	  if (sscanf (optarg, "%d", &ctrl->cfg.num_test_sockets) != 1)
	    {
	      fprintf (stderr, "CLIENT: ERROR: Invalid value for "
		       "option -%c!\n", c);
	      print_usage_and_exit ();
	    }
	if (ctrl->cfg.num_test_sockets > SOCK_TEST_CFG_MAX_TEST_SCKTS)
	  {
	    fprintf (stderr, "CLIENT: ERROR: value greater than max "
		     "number test sockets (%d)!",
		     SOCK_TEST_CFG_MAX_TEST_SCKTS);
	    print_usage_and_exit ();
	  }
	break;

      case 'N':
	if (sscanf (optarg, "0x%lx", &ctrl->cfg.num_writes) != 1)
	  if (sscanf (optarg, "%ld", &ctrl->cfg.num_writes) != 1)
	    {
	      fprintf (stderr, "CLIENT: ERROR: Invalid value for "
		       "option -%c!\n", c);
	      print_usage_and_exit ();
	    }
	ctrl->cfg.total_bytes = ctrl->cfg.num_writes * ctrl->cfg.txbuf_size;
	break;

      case 'R':
	if (sscanf (optarg, "0x%lx", &ctrl->cfg.rxbuf_size) != 1)
	  if (sscanf (optarg, "%ld", &ctrl->cfg.rxbuf_size) != 1)
	    {
	      fprintf (stderr, "CLIENT: ERROR: Invalid value for "
		       "option -%c!\n", c);
	      print_usage_and_exit ();
	    }
	if (ctrl->cfg.rxbuf_size >= SOCK_TEST_CFG_BUF_SIZE_MIN)
	  {
	    ctrl->rxbuf_size = ctrl->cfg.rxbuf_size;
	    sock_test_buf_alloc (&ctrl->cfg, 1 /* is_rxbuf */ ,
				 (uint8_t **) & ctrl->rxbuf,
				 &ctrl->rxbuf_size);
	  }
	else
	  {
	    fprintf (stderr, "CLIENT: ERROR: rxbuf size (%lu) "
		     "less than minumum (%u)\n",
		     ctrl->cfg.rxbuf_size, SOCK_TEST_CFG_BUF_SIZE_MIN);
	    print_usage_and_exit ();
	  }

	break;

      case 'T':
	if (sscanf (optarg, "0x%lx", &ctrl->cfg.txbuf_size) != 1)
	  if (sscanf (optarg, "%ld", &ctrl->cfg.txbuf_size) != 1)
	    {
	      fprintf (stderr, "CLIENT: ERROR: Invalid value "
		       "for option -%c!\n", c);
	      print_usage_and_exit ();
	    }
	if (ctrl->cfg.txbuf_size >= SOCK_TEST_CFG_BUF_SIZE_MIN)
	  {
	    ctrl->txbuf_size = ctrl->cfg.txbuf_size;
	    sock_test_buf_alloc (&ctrl->cfg, 0 /* is_rxbuf */ ,
				 (uint8_t **) & ctrl->txbuf,
				 &ctrl->txbuf_size);
	    ctrl->cfg.total_bytes =
	      ctrl->cfg.num_writes * ctrl->cfg.txbuf_size;
	  }
	else
	  {
	    fprintf (stderr, "CLIENT: ERROR: txbuf size (%lu) "
		     "less than minumum (%u)!\n",
		     ctrl->cfg.txbuf_size, SOCK_TEST_CFG_BUF_SIZE_MIN);
	    print_usage_and_exit ();
	  }
	break;

      case 'U':
	ctrl->cfg.test = SOCK_TEST_TYPE_UNI;
	break;

      case 'B':
	ctrl->cfg.test = SOCK_TEST_TYPE_BI;
	break;

      case 'V':
	ctrl->cfg.verbose = 1;
	break;

      case '6':
	ctrl->cfg.address_ip6 = 1;
	break;

      case 'D':
	ctrl->cfg.transport_udp = 1;
	break;

      case '?':
	switch (optopt)
	  {
	  case 'E':
	  case 'I':
	  case 'N':
	  case 'R':
	  case 'T':
	  case 'w':
	    fprintf (stderr, "CLIENT: ERROR: Option -%c "
		     "requires an argument.\n", optopt);
	    break;

	  default:
	    if (isprint (optopt))
	      fprintf (stderr, "CLIENT: ERROR: Unknown "
		       "option `-%c'.\n", optopt);
	    else
	      fprintf (stderr, "CLIENT: ERROR: Unknown "
		       "option character `\\x%x'.\n", optopt);
	  }
	/* fall thru */
      case 'h':
      default:
	print_usage_and_exit ();
      }

  if (argc < (optind + 2))
    {
      fprintf (stderr, "CLIENT: ERROR: Insufficient number of arguments!\n");
      print_usage_and_exit ();
    }

  ctrl->fd = vppcom_app_create ("vcl_test_client");
  if (ctrl->fd < 0)
    {
      errno = -ctrl->fd;
      ctrl->fd = -1;
    }
  else
    {
      ctrl->fd = vppcom_session_create (ctrl->cfg.transport_udp ?
					VPPCOM_PROTO_UDP :
					VPPCOM_PROTO_TCP,
					0 /* is_nonblocking */ );
      if (ctrl->fd < 0)
	{
	  errno = -ctrl->fd;
	  ctrl->fd = -1;
	}
    }

  if (ctrl->fd < 0)
    {
      errno_val = errno;
      perror ("ERROR in main()");
      fprintf (stderr, "CLIENT: ERROR: socket "
	       "failed (errno = %d)!\n", errno_val);
      return ctrl->fd;
    }

  memset (&scm->server_addr, 0, sizeof (scm->server_addr));
  if (ctrl->cfg.address_ip6)
    {
      struct sockaddr_in6 *server_addr =
	(struct sockaddr_in6 *) &scm->server_addr;
      scm->server_addr_size = sizeof (*server_addr);
      server_addr->sin6_family = AF_INET6;
      inet_pton (AF_INET6, argv[optind++], &(server_addr->sin6_addr));
      server_addr->sin6_port = htons (atoi (argv[optind]));
    }
  else
    {
      struct sockaddr_in *server_addr =
	(struct sockaddr_in *) &scm->server_addr;
      scm->server_addr_size = sizeof (*server_addr);
      server_addr->sin_family = AF_INET;
      inet_pton (AF_INET, argv[optind++], &(server_addr->sin_addr));
      server_addr->sin_port = htons (atoi (argv[optind]));
    }

  if (ctrl->cfg.address_ip6)
    {
      struct sockaddr_in6 *server_addr =
	(struct sockaddr_in6 *) &scm->server_addr;
      scm->server_endpt.is_ip4 = 0;
      scm->server_endpt.ip = (uint8_t *) & server_addr->sin6_addr;
      scm->server_endpt.port = (uint16_t) server_addr->sin6_port;
    }
  else
    {
      struct sockaddr_in *server_addr =
	(struct sockaddr_in *) &scm->server_addr;
      scm->server_endpt.is_ip4 = 1;
      scm->server_endpt.ip = (uint8_t *) & server_addr->sin_addr;
      scm->server_endpt.port = (uint16_t) server_addr->sin_port;
    }

  do
    {
      printf ("\nCLIENT: Connecting to server...\n");

      rv = vppcom_session_connect (ctrl->fd, &scm->server_endpt);
      if (rv)
	{
	  errno = -rv;
	  rv = -1;
	}
      if (rv < 0)
	{
	  errno_val = errno;
	  perror ("ERROR in main()");
	  fprintf (stderr, "CLIENT: ERROR: connect failed (errno = %d)!\n",
		   errno_val);
	  return -1;
	}

      sock_test_cfg_sync (ctrl);
      printf ("CLIENT (fd %d): Control socket connected.\n", ctrl->fd);
    }
  while (rv < 0);

  sock_test_connect_test_sockets (ctrl->cfg.num_test_sockets);

  while (ctrl->cfg.test != SOCK_TEST_TYPE_EXIT)
    {
      if (scm->dump_cfg)
	{
	  sock_test_cfg_dump (&ctrl->cfg, 1 /* is_client */ );
	  scm->dump_cfg = 0;
	}

      switch (ctrl->cfg.test)
	{
	case SOCK_TEST_TYPE_ECHO:
	  echo_test_client ();
	  break;

	case SOCK_TEST_TYPE_UNI:
	case SOCK_TEST_TYPE_BI:
	  stream_test_client (ctrl->cfg.test);
	  break;

	case SOCK_TEST_TYPE_EXIT:
	  continue;

	case SOCK_TEST_TYPE_NONE:
	default:
	  break;
	}
      switch (post_test)
	{
	case SOCK_TEST_TYPE_EXIT:
	  switch (ctrl->cfg.test)
	    {
	    case SOCK_TEST_TYPE_EXIT:
	    case SOCK_TEST_TYPE_UNI:
	    case SOCK_TEST_TYPE_BI:
	    case SOCK_TEST_TYPE_ECHO:
	      ctrl->cfg.test = SOCK_TEST_TYPE_EXIT;
	      continue;

	    case SOCK_TEST_TYPE_NONE:
	    default:
	      break;
	    }
	  break;

	case SOCK_TEST_TYPE_NONE:
	case SOCK_TEST_TYPE_ECHO:
	case SOCK_TEST_TYPE_UNI:
	case SOCK_TEST_TYPE_BI:
	default:
	  break;
	}

      memset (ctrl->txbuf, 0, ctrl->txbuf_size);
      memset (ctrl->rxbuf, 0, ctrl->rxbuf_size);

      printf ("\nCLIENT: Type some characters and hit <return>\n"
	      "('" SOCK_TEST_TOKEN_HELP "' for help): ");

      if (fgets (ctrl->txbuf, ctrl->txbuf_size, stdin) != NULL)
	{
	  if (strlen (ctrl->txbuf) == 1)
	    {
	      printf ("\nCLIENT: Nothing to send!  Please try again...\n");
	      continue;
	    }
	  ctrl->txbuf[strlen (ctrl->txbuf) - 1] = 0;	// chomp the newline.

	  /* Parse input for keywords */
	  ctrl->cfg.test = parse_input ();
	}
    }

  exit_client ();
  vppcom_session_close (ctrl->fd);
  vppcom_app_destroy ();
  return 0;
}

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */