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/*
Copyright (C) 2015 David Disseldorp
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <arpa/inet.h>
#include <CUnit/CUnit.h>
#include "iscsi.h"
#include "scsi-lowlevel.h"
#include "iscsi-support.h"
#include "iscsi-test-cu.h"
#include "iscsi-multipath.h"
void
test_prout_preempt_rm_reg(void)
{
int ret = 0;
const unsigned long long k1 = rand_key();
const unsigned long long k2 = rand_key();
struct scsi_device *sd2;
struct scsi_task *tsk;
uint32_t old_gen;
int num_uas;
struct scsi_persistent_reserve_in_read_keys *rk;
CHECK_FOR_DATALOSS;
CHECK_FOR_ISCSI(sd);
logging(LOG_VERBOSE, LOG_BLANK_LINE);
logging(LOG_VERBOSE, "Test Persistent Reserve IN PREEMPT works.");
ret = prout_register_and_ignore(sd, k1);
if (ret == -2) {
CU_PASS("PERSISTENT RESERVE OUT is not implemented.");
return;
}
CU_ASSERT_EQUAL(ret, 0);
/* clear all PR state */
ret = prout_clear(sd, k1);
CU_ASSERT_EQUAL(ret, 0);
/* need to reregister cleared key */
ret = prout_register_and_ignore(sd, k1);
CU_ASSERT_EQUAL(ret, 0);
ret = mpath_sd2_get_or_clone(sd, &sd2);
CU_ASSERT_EQUAL(ret, 0);
if (ret < 0)
return;
/* register secondary key */
ret = prout_register_and_ignore(sd2, k2);
CU_ASSERT_EQUAL(ret, 0);
/* confirm that k1 and k2 are registered */
ret = prin_read_keys(sd, &tsk, &rk, 16384);
CU_ASSERT_EQUAL_FATAL(ret, 0);
CU_ASSERT_EQUAL(rk->num_keys, 2);
/* retain PR generation number to check for increments */
old_gen = rk->prgeneration;
scsi_free_scsi_task(tsk);
rk = NULL; /* freed with tsk */
/* use second connection to clear k1 registration */
ret = prout_preempt(sd2, k1, k2,
SCSI_PERSISTENT_RESERVE_TYPE_EXCLUSIVE_ACCESS);
CU_ASSERT_EQUAL(ret, 0);
/* clear any UAs generated by preempt */
ret = test_iscsi_tur_until_good(sd, &num_uas);
CU_ASSERT_EQUAL(ret, 0);
ret = test_iscsi_tur_until_good(sd2, &num_uas);
CU_ASSERT_EQUAL(ret, 0);
ret = prin_read_keys(sd, &tsk, &rk, 16384);
CU_ASSERT_EQUAL_FATAL(ret, 0);
CU_ASSERT_EQUAL(rk->num_keys, 1);
/* ensure preempt bumped generation number */
CU_ASSERT_EQUAL(rk->prgeneration, old_gen + 1);
/* ensure k2 is retained */
CU_ASSERT_EQUAL(rk->keys[0], k2);
/* unregister k2 */
ret = prout_register_key(sd2, 0, k2);
CU_ASSERT_EQUAL(ret, 0);
}
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