コード例 #1
0
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 block_size, 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 = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}

	block_size = rc16->block_length;
	num_blocks = rc16->returned_lba;

	scsi_free_scsi_task(task);

	if (!data_loss) {
		printf("data_loss flag is not set. Skipping test\n");
		ret = -1;
		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;
}
コード例 #2
0
ファイル: 0300_readonly.c プロジェクト: gonzoleeman/libiscsi
int T0300_readonly(const char *initiator, const char *url)
{ 
	struct iscsi_context *iscsi;
	struct scsi_task *task;
	struct scsi_mode_sense *ms;
	int ret, lun;
	unsigned char data[4096];
	struct unmap_list list[1];
	int full_size;

	ret = -1;

	printf("0300_readonly:\n");
	printf("==============\n");
	if (show_info) {
		printf("Test that all commands that modify the medium fail for readonly devices\n");
		printf("1, WRITE10 at LUN 0 should fail.\n");
		printf("2, WRITE12 at LUN 0 should fail.\n");
		printf("3, WRITE16 at LUN 0 should fail.\n");
		printf("4, WRITESAME10 at LUN 0 should fail.\n");
		printf("5, WRITESAME16 at LUN 0 should fail.\n");
		printf("6, WRITESAME10 with UNMAP at LUN 0 should fail (skipped if not thin-provisioned).\n");
		printf("7, WRITESAME16 with UNMAP at LUN 0 should fail (skipped if not thin-provisioned).\n");
		printf("8, UNMAP at LUN 0 should fail (skipped if not thin-provisioned).\n");
		printf("9, WRITEVERIFY10 at LUN 0 should fail.\n");
		printf("10, WRITEVERIFY12 at LUN 0 should fail.\n");
		printf("11, WRITEVERIFY16 at LUN 0 should fail.\n");
		printf("12, COMPAREANDWRITE at LUN 0 should fail.\n");
		printf("13, ORWRITE at LUN 0 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;
	}

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

	/* This test is only valid for SBC devices */
	if (device_type != SCSI_INQUIRY_PERIPHERAL_DEVICE_TYPE_DIRECT_ACCESS) {
		printf("LUN is not SBC device. Skipping test\n");
		return -2;
	}

	/* verify the device is readonly */
	task = iscsi_modesense6_sync(iscsi, lun, 0, SCSI_MODESENSE_PC_CURRENT,
				     SCSI_MODESENSE_PAGECODE_RETURN_ALL_PAGES, 0,
				     4);
	if (task == NULL) {
		printf("Failed to send modesense6 command: %s\n", iscsi_get_error(iscsi));
		goto finished;
	}
	full_size = scsi_datain_getfullsize(task);
	if (full_size > task->datain.size) {
		scsi_free_scsi_task(task);
		task = iscsi_modesense6_sync(iscsi, lun, 0, SCSI_MODESENSE_PC_CURRENT,
					     SCSI_MODESENSE_PAGECODE_RETURN_ALL_PAGES, 0,
					     full_size);
		if (task == NULL) {
			printf("Failed to send modesense6 command: %s\n", iscsi_get_error(iscsi));
			goto finished;
		}
	}
	ms = scsi_datain_unmarshall(task);
	if (ms == NULL) {
		printf("failed to unmarshall mode sense datain blob\n");
		scsi_free_scsi_task(task);
		goto finished;
	}
	if (!(ms->device_specific_parameter & 0x80)) {
		printf("Device is not read-only. Skipping test\n");
		ret = -2;
		goto finished;
	}
	scsi_free_scsi_task(task);


	ret = 0;


	/* Write one block at lba 0 */
	printf("WRITE10 to LUN 0 ... ");
	task = iscsi_write10_sync(iscsi, lun, 0, data, block_size, block_size, 0, 0, 0, 0, 0);
	if (task == NULL) {
	        printf("[FAILED]\n");
		printf("Failed to send WRITE10 command: %s\n", iscsi_get_error(iscsi));
		ret = -1;
		goto finished;
	}
	if (task->status == SCSI_STATUS_GOOD) {
	        printf("[FAILED]\n");
		printf("WRITE10 command should fail when writing to readonly devices\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}
	if (task->status        != SCSI_STATUS_CHECK_CONDITION
	    || task->sense.key  != SCSI_SENSE_DATA_PROTECTION
	    || task->sense.ascq != SCSI_SENSE_ASCQ_WRITE_PROTECTED) {
		printf("[FAILED]\n");
		printf("WRITE10 failed with the wrong sense code. Should fail with DATA_PROTECTION/WRITE_PROTECTED\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}	
	scsi_free_scsi_task(task);
	printf("[OK]\n");


	/* Write one block at lba 0 */
	printf("WRITE12 to LUN 0 ... ");
	task = iscsi_write12_sync(iscsi, lun, 0, data, block_size, block_size, 0, 0, 0, 0, 0);
	if (task == NULL) {
	        printf("[FAILED]\n");
		printf("Failed to send WRITE12 command: %s\n", iscsi_get_error(iscsi));
		ret = -1;
		goto finished;
	}
	if (task->status == SCSI_STATUS_GOOD) {
	        printf("[FAILED]\n");
		printf("WRITE12 command should fail when writing to readonly devices\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}
	if (task->status        != SCSI_STATUS_CHECK_CONDITION
	    || task->sense.key  != SCSI_SENSE_DATA_PROTECTION
	    || task->sense.ascq != SCSI_SENSE_ASCQ_WRITE_PROTECTED) {
		printf("[FAILED]\n");
		printf("WRITE12 failed with the wrong sense code. Should fail with DATA_PROTECTION/WRITE_PROTECTED\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}	
	scsi_free_scsi_task(task);
	printf("[OK]\n");


	/* Write one block at lba 0 */
	printf("WRITE16 to LUN 0 ... ");
	task = iscsi_write16_sync(iscsi, lun, 0, data, block_size, block_size, 0, 0, 0, 0, 0);
	if (task == NULL) {
	        printf("[FAILED]\n");
		printf("Failed to send WRITE16 command: %s\n", iscsi_get_error(iscsi));
		ret = -1;
		goto finished;
	}
	if (task->status == SCSI_STATUS_GOOD) {
	        printf("[FAILED]\n");
		printf("WRITE16 command should fail when writing to readonly devices\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}
	if (task->status        != SCSI_STATUS_CHECK_CONDITION
	    || task->sense.key  != SCSI_SENSE_DATA_PROTECTION
	    || task->sense.ascq != SCSI_SENSE_ASCQ_WRITE_PROTECTED) {
		printf("[FAILED]\n");
		printf("WRITE16 failed with the wrong sense code. Should fail with DATA_PROTECTION/WRITE_PROTECTED\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}	
	scsi_free_scsi_task(task);
	printf("[OK]\n");


	/* Write one block at lba 0 */
	printf("WRITESAME10 to LUN 0 ... ");
	task = iscsi_writesame10_sync(iscsi, lun, data, block_size, 0, 1, 0, 0, 0, 0, 0, 0);
	if (task == NULL) {
	        printf("[FAILED]\n");
		printf("Failed to send WRITESAME10 command: %s\n", iscsi_get_error(iscsi));
		ret = -1;
		goto finished;
	}
	if (task->status == SCSI_STATUS_GOOD) {
	        printf("[FAILED]\n");
		printf("WRITESAME10 command should fail when writing to readonly devices\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}
	if (task->status        != SCSI_STATUS_CHECK_CONDITION
	    || task->sense.key  != SCSI_SENSE_DATA_PROTECTION
	    || task->sense.ascq != SCSI_SENSE_ASCQ_WRITE_PROTECTED) {
		printf("[FAILED]\n");
		printf("WRITESAME10 failed with the wrong sense code. Should fail with DATA_PROTECTION/WRITE_PROTECTED\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}	
	scsi_free_scsi_task(task);
	printf("[OK]\n");


	/* Write one block at lba 0 */
	printf("WRITESAME16 to LUN 0 ... ");
	task = iscsi_writesame16_sync(iscsi, lun, data, block_size, 0, 1, 0, 0, 0, 0, 0, 0);
	if (task == NULL) {
	        printf("[FAILED]\n");
		printf("Failed to send WRITESAME16 command: %s\n", iscsi_get_error(iscsi));
		ret = -1;
		goto finished;
	}
	if (task->status == SCSI_STATUS_GOOD) {
	        printf("[FAILED]\n");
		printf("WRITESAME16 command should fail when writing to readonly devices\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}
	if (task->status        != SCSI_STATUS_CHECK_CONDITION
	    || task->sense.key  != SCSI_SENSE_DATA_PROTECTION
	    || task->sense.ascq != SCSI_SENSE_ASCQ_WRITE_PROTECTED) {
		printf("[FAILED]\n");
		printf("WRITESAME16 failed with the wrong sense code. Should fail with DATA_PROTECTION/WRITE_PROTECTED\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}	
	scsi_free_scsi_task(task);
	printf("[OK]\n");


	/* UNMAP one block at lba 0 */
	printf("WRITESAME10 to UNMAP LUN 0 ... ");
	if (lbpme == 0) {
		printf("LUN is not thin-provisioned. [SKIPPED]\n");
		goto finished;
	}
	task = iscsi_writesame10_sync(iscsi, lun, data, block_size, 0, 1, 0, 1, 0, 0, 0, 0);
	if (task == NULL) {
	        printf("[FAILED]\n");
		printf("Failed to send WRITESAME10 command: %s\n", iscsi_get_error(iscsi));
		ret = -1;
		goto finished;
	}
	if (task->status == SCSI_STATUS_GOOD) {
	        printf("[FAILED]\n");
		printf("WRITESAME10 command should fail when writing to readonly devices\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}
	if (task->status        != SCSI_STATUS_CHECK_CONDITION
	    || task->sense.key  != SCSI_SENSE_DATA_PROTECTION
	    || task->sense.ascq != SCSI_SENSE_ASCQ_WRITE_PROTECTED) {
		printf("[FAILED]\n");
		printf("WRITESAME10 failed with the wrong sense code. Should fail with DATA_PROTECTION/WRITE_PROTECTED\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}	
	scsi_free_scsi_task(task);
	printf("[OK]\n");


	/* UNMAP one block at lba 0 */
	printf("WRITESAME16 to UNMAP LUN 0 ... ");
	if (lbpme == 0) {
		printf("LUN is not thin-provisioned. [SKIPPED]\n");
		goto finished;
	}
	task = iscsi_writesame16_sync(iscsi, lun, data, block_size, 0, 1, 0, 1, 0, 0, 0, 0);
	if (task == NULL) {
	        printf("[FAILED]\n");
		printf("Failed to send WRITESAME16 command: %s\n", iscsi_get_error(iscsi));
		ret = -1;
		goto finished;
	}
	if (task->status == SCSI_STATUS_GOOD) {
	        printf("[FAILED]\n");
		printf("WRITESAME16 command should fail when writing to readonly devices\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}
	if (task->status        != SCSI_STATUS_CHECK_CONDITION
	    || task->sense.key  != SCSI_SENSE_DATA_PROTECTION
	    || task->sense.ascq != SCSI_SENSE_ASCQ_WRITE_PROTECTED) {
		printf("[FAILED]\n");
		printf("WRITESAME16 failed with the wrong sense code. Should fail with DATA_PROTECTION/WRITE_PROTECTED\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}	
	scsi_free_scsi_task(task);
	printf("[OK]\n");


	/* UNMAP one block at lba 0 */
	printf("UNMAP LUN 0 ... ");
	if (lbpme == 0) {
		printf("LUN is not thin-provisioned. [SKIPPED]\n");
		goto finished;
	}
	list[0].lba = 0;
	list[0].num = 1;
	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 should fail when writing to readonly devices\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}
	if (task->status        != SCSI_STATUS_CHECK_CONDITION
	    || task->sense.key  != SCSI_SENSE_DATA_PROTECTION
	    || task->sense.ascq != SCSI_SENSE_ASCQ_WRITE_PROTECTED) {
		printf("[FAILED]\n");
		printf("UNMAP failed with the wrong sense code. Should fail with DATA_PROTECTION/WRITE_PROTECTED\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}	
	scsi_free_scsi_task(task);
	printf("[OK]\n");


	/* Write one block at lba 0 */
	printf("WRITEVERIFY10 to LUN 0 ... ");
	task = iscsi_writeverify10_sync(iscsi, lun, 0, data, block_size, block_size, 0, 0, 0, 0);
	if (task == NULL) {
	        printf("[FAILED]\n");
		printf("Failed to send WRITEVERIFY10 command: %s\n", iscsi_get_error(iscsi));
		ret = -1;
		goto finished;
	}
	if (task->status == SCSI_STATUS_GOOD) {
	        printf("[FAILED]\n");
		printf("WRITEVERIFY10 command should fail when writing to readonly devices\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}
	if (task->status        != SCSI_STATUS_CHECK_CONDITION
	    || task->sense.key  != SCSI_SENSE_DATA_PROTECTION
	    || task->sense.ascq != SCSI_SENSE_ASCQ_WRITE_PROTECTED) {
		printf("[FAILED]\n");
		printf("WRITEVERIFY10 failed with the wrong sense code. Should fail with DATA_PROTECTION/WRITE_PROTECTED\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}	
	scsi_free_scsi_task(task);
	printf("[OK]\n");


	/* Write one block at lba 0 */
	printf("WRITEVERIFY12 to LUN 0 ... ");
	task = iscsi_writeverify12_sync(iscsi, lun, 0, data, block_size, block_size, 0, 0, 0, 0);
	if (task == NULL) {
	        printf("[FAILED]\n");
		printf("Failed to send WRITEVERIFY12 command: %s\n", iscsi_get_error(iscsi));
		ret = -1;
		goto finished;
	}
	if (task->status == SCSI_STATUS_GOOD) {
	        printf("[FAILED]\n");
		printf("WRITEVERIFY12 command should fail when writing to readonly devices\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}
	if (task->status        != SCSI_STATUS_CHECK_CONDITION
	    || task->sense.key  != SCSI_SENSE_DATA_PROTECTION
	    || task->sense.ascq != SCSI_SENSE_ASCQ_WRITE_PROTECTED) {
		printf("[FAILED]\n");
		printf("WRITEVERIFY12 failed with the wrong sense code. Should fail with DATA_PROTECTION/WRITE_PROTECTED\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}	
	scsi_free_scsi_task(task);
	printf("[OK]\n");


	/* Write one block at lba 0 */
	printf("WRITEVERIFY16 to LUN 0 ... ");
	task = iscsi_writeverify16_sync(iscsi, lun, 0, data, block_size, block_size, 0, 0, 0, 0);
	if (task == NULL) {
	        printf("[FAILED]\n");
		printf("Failed to send WRITEVERIFY16 command: %s\n", iscsi_get_error(iscsi));
		ret = -1;
		goto finished;
	}
	if (task->status == SCSI_STATUS_GOOD) {
	        printf("[FAILED]\n");
		printf("WRITEVERIFY16 command should fail when writing to readonly devices\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}
	if (task->status        != SCSI_STATUS_CHECK_CONDITION
	    || task->sense.key  != SCSI_SENSE_DATA_PROTECTION
	    || task->sense.ascq != SCSI_SENSE_ASCQ_WRITE_PROTECTED) {
		printf("[FAILED]\n");
		printf("WRITEVERIFY16 failed with the wrong sense code. Should fail with DATA_PROTECTION/WRITE_PROTECTED\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}	
	scsi_free_scsi_task(task);
	printf("[OK]\n");


	/* Write one block at lba 0 */
	printf("COMPAREWRITE to LUN 0 ... ");
	task = iscsi_compareandwrite_sync(iscsi, lun, 0, data, block_size, block_size, 0, 0, 0, 0, 0);
	if (task == NULL) {
	        printf("[FAILED]\n");
		printf("Failed to send COMPAREANDWRITE command: %s\n", iscsi_get_error(iscsi));
		ret = -1;
		goto finished;
	}
	if (task->status == SCSI_STATUS_GOOD) {
	        printf("[FAILED]\n");
		printf("COMPAREANDWRITE command should fail when writing to readonly devices\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}
	if (task->status        != SCSI_STATUS_CHECK_CONDITION
	    || task->sense.key  != SCSI_SENSE_DATA_PROTECTION
	    || task->sense.ascq != SCSI_SENSE_ASCQ_WRITE_PROTECTED) {
		printf("[FAILED]\n");
		printf("COMPAREANDWRITE failed with the wrong sense code. Should fail with DATA_PROTECTION/WRITE_PROTECTED\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}	
	scsi_free_scsi_task(task);
	printf("[OK]\n");


	/* Write one block at lba 0 */
	printf("ORWRITE to LUN 0 ... ");
	task = iscsi_orwrite_sync(iscsi, lun, 0, data, block_size, block_size, 0, 0, 0, 0, 0);
	if (task == NULL) {
	        printf("[FAILED]\n");
		printf("Failed to send ORWRITE command: %s\n", iscsi_get_error(iscsi));
		ret = -1;
		goto finished;
	}
	if (task->status == SCSI_STATUS_GOOD) {
	        printf("[FAILED]\n");
		printf("ORWRITE command should fail when writing to readonly devices\n");
		ret = -1;
		scsi_free_scsi_task(task);
		goto finished;
	}
	if (task->status        != SCSI_STATUS_CHECK_CONDITION
	    || task->sense.key  != SCSI_SENSE_DATA_PROTECTION
	    || task->sense.ascq != SCSI_SENSE_ASCQ_WRITE_PROTECTED) {
		printf("[FAILED]\n");
		printf("ORWRITE failed with the wrong sense code. Should fail with DATA_PROTECTION/WRITE_PROTECTED\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;
}
コード例 #3
0
int T0171_unmap_zero(const char *initiator, const char *url)
{ 
	struct iscsi_context *iscsi;
	struct scsi_task *task;
	int ret, i, lun;

	printf("0171_unmap_zero:\n");
	printf("================\n");
	if (show_info) {
		printf("Test UNMAP of 0 blocks.\n");
		printf("1, Try to UNMAP 0 blocks at LBA 0 to LBA 255\n");
		printf("2, Try to UNMAP 0 blocks at 0 to 255 blocks from end-of-lun\n");
		printf("3, Try to UNMAP 0 blocks at 1 to 256 blocks beyond end-of-lun\n");
		printf("4, Send UNMAP without any block descriptors\n");
		printf("\n");
		return 0;
	}

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

	if (lbpme == 0){
		printf("Logical unit is fully provisioned. Skipping test\n");
		ret = -2;
		goto finished;
	}

	if (!data_loss) {
		printf("data_loss flag is not set. Skipping test\n");
		ret = -2;
		goto finished;
	}
	
	ret = 0;

	/* unmap no blocks at LBA 0 - 255 */
	printf("Unmapping of no block at lbas 0-255 blocks ... ");
	for (i=0; i<=255; i++) {
		struct unmap_list list[1];

		list[0].lba = i;
		list[0].num = 0;
		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 no blocks at the last 1 - 256 blocks at the end of the LUN */
	printf("Unmapping last 1-256 blocks ... ");
	for (i=0; i<=255; i++) {
		struct unmap_list list[1];

		list[0].lba = num_blocks - i;
		list[0].num = 0;
		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 no blocks 0-255 blocks beyond the end of the LUN */
	printf("Unmapping no blocks but 0-255 blocks beyong end of LUN... ");
	for (i=0; i<=255; i++) {
		struct unmap_list list[1];

		list[0].lba = num_blocks + 1 + i;
		list[0].num = 0;
		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("STATUS==GOOD. UNMAP command should fail with ILLEGAL_REQUEST/LBA_OUT_OF_RANGE.\n");
			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_LBA_OUT_OF_RANGE) {
		        printf("[FAILED]\n");
			printf("UNMAP fail but ascq was wrong. Should have failed with ILLEGAL_REQUEST/LBA_OUT_OF_RANGE.\n");
			ret = -1;
			scsi_free_scsi_task(task);
			goto finished;
		}
		scsi_free_scsi_task(task);
	}
	printf("[OK]\n");

	/* unmap with no block descriptors at all */
	printf("Unmap without any block descriptors ... ");
	task = iscsi_unmap_sync(iscsi, lun, 0, 0, NULL, 0);
	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;
}