/* 
   Copyright (C) 2010 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 <stdlib.h>
#include <string.h>
#include "iscsi.h"
#include "scsi-lowlevel.h"
#include "iscsi-test.h"

int T0153_read16_rdprotect(const char *initiator, const char *url)
{ 
	struct iscsi_context *iscsi;
	struct scsi_task *task;
	int full_size;
	struct scsi_inquiry_standard *inq;
	int ret, i, lun;

	iscsi = iscsi_context_login(initiator, url, &lun);
	if (iscsi == NULL) {
		printf("Failed to login to target\n");
		return -1;
	}

	/* See how big this inquiry data is */
	task = iscsi_inquiry_sync(iscsi, lun, 0, 0, 64);
	if (task == NULL || task->status != SCSI_STATUS_GOOD) {
		printf("Inquiry command failed : %s\n", iscsi_get_error(iscsi));
		return -1;
	}
	full_size = scsi_datain_getfullsize(task);
	if (full_size > task->datain.size) {
		scsi_free_scsi_task(task);

		/* we need more data for the full list */
		if ((task = iscsi_inquiry_sync(iscsi, lun, 0, 0, full_size)) == NULL) {
			printf("Inquiry command failed : %s\n", iscsi_get_error(iscsi));
			return -1;
		}
	}

	inq = scsi_datain_unmarshall(task);
	if (inq == NULL) {
		printf("failed to unmarshall inquiry datain blob\n");
		scsi_free_scsi_task(task);
		return -1;
	}

	if (inq->periperal_device_type != SCSI_INQUIRY_PERIPHERAL_DEVICE_TYPE_DIRECT_ACCESS) {
		printf("LUN is not SBC device. Skipping test\n");
		scsi_free_scsi_task(task);
		return -1;
	}

	if (inq->protect) {
		printf("LUN is formatted with protection information. Skipping test\n");
		scsi_free_scsi_task(task);
		return -1;
	}

	scsi_free_scsi_task(task);


	ret = 0;

	/* Try out Different non-zero values for RDPROTECT. They should all fail */
	printf("Read12 with non-zero RDPROTECT ... ");
	for (i = 1; i < 8; i++) {

		task = malloc(sizeof(struct scsi_task));

		if (task == NULL) {
			printf("Failed to allocate task structure\n");
			ret = -1;
			goto finished;
		}

		memset(task, 0, sizeof(struct scsi_task));
		task->cdb[0] = SCSI_OPCODE_READ16;
		task->cdb[1] = (i<<5)&0xe0;
		task->cdb[13] = 1;
		task->cdb_size = 16;
		task->xfer_dir = SCSI_XFER_READ;
		task->expxferlen = 512;

		if (iscsi_scsi_command_sync(iscsi, lun, task, NULL) == NULL) {
		        printf("[FAILED]\n");
			printf("Failed to send read16 command: %s\n", iscsi_get_error(iscsi));
			ret = -1;
			scsi_free_scsi_task(task);
			goto finished;
		}
		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("Read16 with rdprotect should fail with ILLEGAL REQUEST/INVALID OPCODE\n");
			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;
}