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/* NBD client library in userspace
* Copyright Red Hat
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/* Test behavior of nbd_opt_info. */
/* See also unit test 230 in the various language ports. */
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <stdint.h>
#include <inttypes.h>
#include <string.h>
#include <errno.h>
#include <libnbd.h>
int
main (int argc, char *argv[])
{
struct nbd_handle *nbd;
int64_t r;
char *s;
char *args[] = { NBDKIT, "-s", "--exit-with-parent", "-v",
"sh", SCRIPT, NULL };
/* Get into negotiating state. */
nbd = nbd_create ();
if (nbd == NULL ||
nbd_set_opt_mode (nbd, true) == -1 ||
nbd_connect_command (nbd, args) == -1 ||
nbd_add_meta_context (nbd, LIBNBD_CONTEXT_BASE_ALLOCATION) == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
/* No size, flags, or meta-contexts yet */
if (nbd_get_size (nbd) != -1) {
fprintf (stderr, "expecting error for get_size\n");
exit (EXIT_FAILURE);
}
if (nbd_is_read_only (nbd) != -1) {
fprintf (stderr, "expecting error for is_read_only\n");
exit (EXIT_FAILURE);
}
if (nbd_can_meta_context (nbd, LIBNBD_CONTEXT_BASE_ALLOCATION) != -1) {
fprintf (stderr, "expecting error for can_meta_context\n");
exit (EXIT_FAILURE);
}
/* info with no prior name gets info on "" */
if (nbd_opt_info (nbd) == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
if ((r = nbd_get_size (nbd)) != 0) {
fprintf (stderr, "expecting size of 0, got %" PRId64 "\n", r);
exit (EXIT_FAILURE);
}
if ((r = nbd_is_read_only (nbd)) != 1) {
fprintf (stderr, "expecting read-only export, got %" PRId64 "\n", r);
exit (EXIT_FAILURE);
}
if ((r = nbd_can_meta_context (nbd, LIBNBD_CONTEXT_BASE_ALLOCATION)) != 1) {
fprintf (stderr, "expecting can_meta_context true, got %" PRId64 "\n", r);
exit (EXIT_FAILURE);
}
/* changing export wipes out prior info */
if (nbd_set_export_name (nbd, "b") == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
if (nbd_get_size (nbd) != -1) {
fprintf (stderr, "expecting error for get_size\n");
exit (EXIT_FAILURE);
}
if (nbd_is_read_only (nbd) != -1) {
fprintf (stderr, "expecting error for is_read_only\n");
exit (EXIT_FAILURE);
}
if (nbd_can_meta_context (nbd, LIBNBD_CONTEXT_BASE_ALLOCATION) != -1) {
fprintf (stderr, "expecting error for can_meta_context\n");
exit (EXIT_FAILURE);
}
/* info on something not present fails */
if (nbd_set_export_name (nbd, "a") == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
if (nbd_opt_info (nbd) != -1) {
fprintf (stderr, "expecting error for opt_info\n");
exit (EXIT_FAILURE);
}
/* info for a different export, with automatic meta_context disabled */
if (nbd_set_export_name (nbd, "b") == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
if (nbd_set_request_meta_context (nbd, 0) == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
if (nbd_opt_info (nbd) == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
/* idempotent name change is no-op */
if (nbd_set_export_name (nbd, "b") == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
if ((r = nbd_get_size (nbd)) != 1) {
fprintf (stderr, "expecting size of 1, got %" PRId64 "\n", r);
exit (EXIT_FAILURE);
}
if ((r = nbd_is_read_only (nbd)) != 0) {
fprintf (stderr, "expecting read-write export, got %" PRId64 "\n", r);
exit (EXIT_FAILURE);
}
if (nbd_can_meta_context (nbd, LIBNBD_CONTEXT_BASE_ALLOCATION) != -1) {
fprintf (stderr, "expecting error for can_meta_context\n");
exit (EXIT_FAILURE);
}
if (nbd_set_request_meta_context (nbd, 1) == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
/* go on something not present */
if (nbd_set_export_name (nbd, "a") == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
if (nbd_opt_go (nbd) != -1) {
fprintf (stderr, "expecting error for opt_go\n");
exit (EXIT_FAILURE);
}
if (nbd_get_size (nbd) != -1) {
fprintf (stderr, "expecting error for get_size\n");
exit (EXIT_FAILURE);
}
if (nbd_is_read_only (nbd) != -1) {
fprintf (stderr, "expecting error for is_read_only\n");
exit (EXIT_FAILURE);
}
if (nbd_can_meta_context (nbd, LIBNBD_CONTEXT_BASE_ALLOCATION) != -1) {
fprintf (stderr, "expecting error for can_meta_context\n");
exit (EXIT_FAILURE);
}
/* go on a valid export */
if (nbd_set_export_name (nbd, "good") == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
if (nbd_opt_go (nbd) == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
if ((r = nbd_get_size (nbd)) != 4) {
fprintf (stderr, "expecting size of 4, got %" PRId64 "\n", r);
exit (EXIT_FAILURE);
}
if ((r = nbd_is_read_only (nbd)) != 1) {
fprintf (stderr, "expecting read-only export, got %" PRId64 "\n", r);
exit (EXIT_FAILURE);
}
if ((r = nbd_can_meta_context (nbd, LIBNBD_CONTEXT_BASE_ALLOCATION)) != 1) {
fprintf (stderr, "expecting can_meta_context true, got %" PRId64 "\n", r);
exit (EXIT_FAILURE);
}
/* now info is no longer valid, but does not wipe data */
if (nbd_set_export_name (nbd, "a") != -1) {
fprintf (stderr, "expecting error for set_export_name\n");
exit (EXIT_FAILURE);
}
if ((s = nbd_get_export_name (nbd)) == NULL) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
if (strcmp (s, "good") != 0) {
fprintf (stderr, "expecting export name 'good', got '%s'\n", s);
exit (EXIT_FAILURE);
}
free (s);
if (nbd_opt_info (nbd) != -1) {
fprintf (stderr, "expecting error for opt_info\n");
exit (EXIT_FAILURE);
}
if ((r = nbd_get_size (nbd)) != 4) {
fprintf (stderr, "expecting size of 4, got %" PRId64 "\n", r);
exit (EXIT_FAILURE);
}
if ((r = nbd_can_meta_context (nbd, LIBNBD_CONTEXT_BASE_ALLOCATION)) != 1) {
fprintf (stderr, "expecting can_meta_context true, got %" PRId64 "\n", r);
exit (EXIT_FAILURE);
}
nbd_shutdown (nbd, 0);
nbd_close (nbd);
/* Another connection. This time, check that SET_META triggered by opt_info
* persists through nbd_opt_go with set_request_meta_context disabled.
*/
nbd = nbd_create ();
if (nbd == NULL ||
nbd_set_opt_mode (nbd, true) == -1 ||
nbd_connect_command (nbd, args) == -1 ||
nbd_add_meta_context (nbd, "x-unexpected:bogus") == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
if (nbd_can_meta_context (nbd, LIBNBD_CONTEXT_BASE_ALLOCATION) != -1) {
fprintf (stderr, "expecting error for can_meta_context\n");
exit (EXIT_FAILURE);
}
if (nbd_opt_info (nbd) == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
if ((r = nbd_can_meta_context (nbd, LIBNBD_CONTEXT_BASE_ALLOCATION)) != 0) {
fprintf (stderr, "expecting can_meta_context false, got %" PRId64 "\n", r);
exit (EXIT_FAILURE);
}
if (nbd_set_request_meta_context (nbd, 0) == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
/* Adding to the request list now won't matter */
if (nbd_add_meta_context (nbd, LIBNBD_CONTEXT_BASE_ALLOCATION) != 0) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
if (nbd_opt_go (nbd) == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
if ((r = nbd_can_meta_context (nbd, LIBNBD_CONTEXT_BASE_ALLOCATION)) != 0) {
fprintf (stderr, "expecting can_meta_context false, got %" PRId64 "\n", r);
exit (EXIT_FAILURE);
}
nbd_shutdown (nbd, 0);
nbd_close (nbd);
exit (EXIT_SUCCESS);
}
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