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/*
Copyright (C) 2012 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
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 "iscsi.h"
#include "scsi-lowlevel.h"
#include "iscsi-test.h"
int T0170_unmap_simple(const char *initiator, const char *url, int data_loss, int show_info)
{
struct iscsi_context *iscsi;
struct scsi_task *task;
struct scsi_readcapacity16 *rc16;
int ret, i, lun;
uint32_t num_blocks;
printf("0170_unmap_simple:\n");
printf("==================\n");
if (show_info) {
printf("Test basic UNMAP functionality.\n");
printf("1, Test UNMAP the first 1-256 blocks of the LUN.\n");
printf("2, Test UNMAP the last 1-256 blocks of the LUN.\n");
printf("\n");
return 0;
}
iscsi = iscsi_context_login(initiator, url, &lun);
if (iscsi == NULL) {
printf("Failed to login to target\n");
return -1;
}
/* find the size of the LUN */
task = iscsi_readcapacity16_sync(iscsi, lun);
if (task == NULL) {
printf("Failed to send readcapacity16 command: %s\n", iscsi_get_error(iscsi));
ret = -1;
goto finished;
}
if (task->status != SCSI_STATUS_GOOD) {
printf("Readcapacity command: failed with sense. %s\n", iscsi_get_error(iscsi));
ret = -1;
scsi_free_scsi_task(task);
goto finished;
}
rc16 = scsi_datain_unmarshall(task);
if (rc16 == NULL) {
printf("failed to unmarshall readcapacity16 data. %s\n", iscsi_get_error(iscsi));
ret = -1;
scsi_free_scsi_task(task);
goto finished;
}
if (rc16->lbpme == 0){
printf("Logical unit is fully provisioned. Skipping test\n");
ret = -2;
scsi_free_scsi_task(task);
goto finished;
}
num_blocks = rc16->returned_lba;
scsi_free_scsi_task(task);
if (!data_loss) {
printf("data_loss flag is not set. Skipping test\n");
ret = -2;
goto finished;
}
ret = 0;
/* unmap the first 1 - 256 blocks at the start of the LUN */
printf("Unmapping first 1-256 blocks ... ");
for (i=1; i<=256; i++) {
struct unmap_list list[1];
list[0].lba = 0;
list[0].num = i;
task = iscsi_unmap_sync(iscsi, lun, 0, 0, &list[0], 1);
if (task == NULL) {
printf("[FAILED]\n");
printf("Failed to send UNMAP command: %s\n", iscsi_get_error(iscsi));
ret = -1;
goto finished;
}
if (task->status != SCSI_STATUS_GOOD) {
printf("[FAILED]\n");
printf("UNMAP command: failed with sense. %s\n", iscsi_get_error(iscsi));
ret = -1;
scsi_free_scsi_task(task);
goto finished;
}
scsi_free_scsi_task(task);
}
printf("[OK]\n");
/* unmap the last 1 - 256 blocks at the end of the LUN */
printf("Unmapping last 1-256 blocks ... ");
for (i=1; i<=256; i++) {
struct unmap_list list[1];
list[0].lba = num_blocks + 1 - i;
list[0].num = i;
task = iscsi_unmap_sync(iscsi, lun, 0, 0, &list[0], 1);
if (task == NULL) {
printf("[FAILED]\n");
printf("Failed to send UNMAP command: %s\n", iscsi_get_error(iscsi));
ret = -1;
goto finished;
}
if (task->status != SCSI_STATUS_GOOD) {
printf("[FAILED]\n");
printf("UNMAP command: failed with sense. %s\n", iscsi_get_error(iscsi));
ret = -1;
scsi_free_scsi_task(task);
goto finished;
}
scsi_free_scsi_task(task);
}
printf("[OK]\n");
finished:
iscsi_logout_sync(iscsi);
iscsi_destroy_context(iscsi);
return ret;
}