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/* nbdkit
* Copyright Red Hat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Red Hat nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <inttypes.h>
#include <string.h>
#include <unistd.h>
#include <guestfs.h>
#include "test.h"
int
main (int argc, char *argv[])
{
guestfs_h *g;
int r;
char *data;
char *sockarg = NULL;
size_t i, size;
/* Run an oldstyle nbdkit server. */
if (test_start_nbdkit ("-o", "file", "file-data", NULL) == -1)
exit (EXIT_FAILURE);
/* Now run a second (newstyle) server connecting to the oldstyle
* server above. Add shared=true on this handle to test that
* feature.
*/
if (asprintf (&sockarg, "socket=%s", sock) < 0) {
perror ("asprintf");
exit (EXIT_FAILURE);
}
if (test_start_nbdkit ("-e", "wrap", "nbd", sockarg,
"shared=true", NULL) == -1)
exit (EXIT_FAILURE);
free (sockarg);
/* And now run another oldstyle server connecting to the newstyle
* server above, for a total of 3 nbdkit instances.
*/
if (asprintf (&sockarg, "socket=%s", sock) < 0) {
perror ("asprintf");
exit (EXIT_FAILURE);
}
if (test_start_nbdkit ("-o", "nbd", sockarg, "export=wrap", NULL) == -1)
exit (EXIT_FAILURE);
free (sockarg);
/* Now connect to the front (oldstyle) server using libguestfs. */
g = guestfs_create ();
if (g == NULL) {
perror ("guestfs_create");
exit (EXIT_FAILURE);
}
r = guestfs_add_drive_opts (g, "",
GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
-1);
if (r == -1)
exit (EXIT_FAILURE);
if (guestfs_launch (g) == -1)
exit (EXIT_FAILURE);
/* Check the data in the file is \x01-\x08 repeated 512 times. */
data = guestfs_pread_device (g, "/dev/sda", 8 * 512, 0, &size);
if (!data)
exit (EXIT_FAILURE);
if (size != 8 * 512) {
fprintf (stderr,
"%s FAILED: unexpected size (actual: %zu, expected: 512)\n",
program_name, size);
exit (EXIT_FAILURE);
}
for (i = 0; i < 512 * 8; i += 8) {
if (data[i] != 1 || data[i+1] != 2 ||
data[i+2] != 3 || data[i+3] != 4 ||
data[i+4] != 5 || data[i+5] != 6 ||
data[i+6] != 7 || data[i+7] != 8) {
fprintf (stderr, "%s FAILED: unexpected data returned at offset %zu\n",
program_name, i);
exit (EXIT_FAILURE);
}
}
free (data);
guestfs_close (g);
exit (EXIT_SUCCESS);
}
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