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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 T0351_orwrite_wrprotect(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 = 0, i, lun;
uint32_t block_size;
unsigned char data[4096];

printf("0351_orwrite_wrprotect:\n");
printf("======================\n");
if (show_info) {
printf("Test how ORWRITE handles the wrprotect bits\n");
printf("1, Any non-zero valued for wrprotect should fail.\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("READCAPACITY16 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;
}

block_size = rc16->block_length;

if(rc16->prot_en != 0) {
printf("device is formatted with protection information, skipping test\n");
scsi_free_scsi_task(task);
ret = -2;
goto finished;
}
scsi_free_scsi_task(task);

if (!data_loss) {
printf("--dataloss flag is not set. Skipping test\n");
ret = -2;
goto finished;
}

printf("Test ORWRITE with WRPROTECT != 0 ... ");
for (i = 1; i <= 7; i++) {
task = iscsi_orwrite_sync(iscsi, lun, 0, data, block_size, block_size, i, 0, 0, 0, 0);
if (task == NULL) {
printf("[FAILED]\n");
printf("Failed to send ORWRITE command: %s\n", iscsi_get_error(iscsi));
ret++;
goto test2;
}
if (task->status != SCSI_STATUS_CHECK_CONDITION
|| task->sense.key != SCSI_SENSE_ILLEGAL_REQUEST
|| task->sense.ascq != SCSI_SENSE_ASCQ_INVALID_FIELD_IN_CDB) {
printf("[FAILED]\n");
printf("ORWRITE with WRPROTECT!=0 should have failed with CHECK_CONDITION/ILLEGAL_REQUEST/INVALID_FIELD_IN_CDB\n");
ret++;
scsi_free_scsi_task(task);
goto test2;
}
scsi_free_scsi_task(task);
}
printf("[OK]\n");

test2:

finished:
iscsi_logout_sync(iscsi);
iscsi_destroy_context(iscsi);
return ret;
}
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