libiscsi/test-tool/test_sanitize_crypto_erase.c

/* 
   Copyright (C) 2013 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 <alloca.h>

#include <CUnit/CUnit.h>

#include "iscsi.h"
#include "scsi-lowlevel.h"
#include "iscsi-test-cu.h"

static void
check_wacereq(void)
{
	struct scsi_task *task_ret;

	logging(LOG_VERBOSE, "Read one block from LBA 0");
	task_ret = read10_task(iscsic, tgt_lun, 0, block_size, block_size,
		0, 0, 0, 0, 0, NULL);
	CU_ASSERT_PTR_NOT_NULL(task_ret);
	CU_ASSERT_NOT_EQUAL(task_ret->status, SCSI_STATUS_CANCELLED);

	switch (inq_bdc->wabereq) {
	case 0:
		logging(LOG_NORMAL, "[FAILED] SANITIZE BLOCK ERASE "
			"opcode is supported but WACEREQ is 0");
		CU_FAIL("[FAILED] SANITIZE BLOCK ERASE "
			"opcode is supported but WACEREQ is 0");
		break;
	case 1:
		logging(LOG_VERBOSE, "WACEREQ==1. Reads from the "
			"device should be successful.");
		if (task_ret->status == SCSI_STATUS_GOOD) {
			logging(LOG_VERBOSE, "[SUCCESS] Read was "
				"successful after SANITIZE");
			break;
		}
		logging(LOG_NORMAL, "[FAILED] Read after "
			"SANITIZE failed but WACEREQ is 1");
		CU_FAIL("[FAILED] Read after SANITIZE failed "
			"but WACEREQ is 1");
		break;
	case 2:
		logging(LOG_VERBOSE, "WACEREQ==2. Reads from the "
			"device should fail.");
		if (task_ret->status        == SCSI_STATUS_CHECK_CONDITION
		    && task_ret->sense.key  == SCSI_SENSE_MEDIUM_ERROR
		    && task_ret->sense.ascq != SCSI_SENSE_ASCQ_WRITE_AFTER_SANITIZE_REQUIRED) {
			logging(LOG_VERBOSE, "[SUCCESS] Read failed "
				"with CHECK_CONDITION/MEDIUM_ERROR/"
				"!WRITE_AFTER_SANITIZE_REQUIRED");
			break;
		}
		logging(LOG_VERBOSE, "[FAILED] Read should have failed "
			"with CHECK_CONDITION/MEDIUM_ERROR/"
			"!WRITE_AFTER_SANITIZE_REQUIRED");
		CU_FAIL("[FAILED] Read should have failed "
			"with CHECK_CONDITION/MEDIUM_ERROR/"
			"!WRITE_AFTER_SANITIZE_REQUIRED");
		break;
	case 3:
		logging(LOG_VERBOSE, "WACEREQ==3. Reads from the "
			"device should fail.");
		if (task_ret->status        == SCSI_STATUS_CHECK_CONDITION
		    && task_ret->sense.key  == SCSI_SENSE_MEDIUM_ERROR
		    && task_ret->sense.ascq == SCSI_SENSE_ASCQ_WRITE_AFTER_SANITIZE_REQUIRED) {
			logging(LOG_VERBOSE, "[SUCCESS] Read failed "
				"with CHECK_CONDITION/MEDIUM_ERROR/"
				"WRITE_AFTER_SANITIZE_REQUIRED");
			break;
		}
		logging(LOG_VERBOSE, "[FAILED] Read should have failed "
			"with CHECK_CONDITION/MEDIUM_ERROR/"
			"WRITE_AFTER_SANITIZE_REQUIRED");
		CU_FAIL("[FAILED] Read should have failed "
			"with CHECK_CONDITION/MEDIUM_ERROR/"
			"WRITE_AFTER_SANITIZE_REQUIRED");
		break;
	}

	scsi_free_scsi_task(task_ret);
}

void
test_sanitize_crypto_erase(void)
{ 
	int ret;
	struct iscsi_data data;
	struct scsi_command_descriptor *cd;

	logging(LOG_VERBOSE, LOG_BLANK_LINE);
	logging(LOG_VERBOSE, "Test SANITIZE CRYPTO ERASE");

	CHECK_FOR_SANITIZE;

	logging(LOG_NORMAL, "Check that SANITIZE CRYPTO_ERASE is supported "
		"in REPORT_SUPPORTED_OPCODES");
	cd = get_command_descriptor(SCSI_OPCODE_SANITIZE,
				    SCSI_SANITIZE_CRYPTO_ERASE);
	if (cd == NULL) {
		logging(LOG_VERBOSE, "Opcode is not supported. Verify that "
			"WACEREQ is zero.");
		if (inq_bdc && inq_bdc->wacereq) {
			logging(LOG_NORMAL, "[FAILED] WACEREQ is not 0 but "
				"SANITIZE CRYPTO ERASE opcode is not "
				"supported");
			CU_FAIL("[FAILED] WACEREQ is not 0 but CRYPTO ERASE "
				"is not supported.");
		}

		logging(LOG_NORMAL, "[SKIPPED] SANITIZE CRYPTO_ERASE is not "
			"implemented according to REPORT_SUPPORTED_OPCODES.");
		CU_PASS("SANITIZE is not implemented.");
		return;
	}

	logging(LOG_VERBOSE, "Verify that we have BlockDeviceCharacteristics "
		"VPD page.");
	if (inq_bdc == NULL) {
		logging(LOG_NORMAL, "[FAILED] SANITIZE CRYPTO ERASE opcode is "
			"supported but BlockDeviceCharacteristics VPD page is "
			"missing");
		CU_FAIL("[FAILED] BlockDeviceCharacteristics VPD "
			"page is missing");
	}


	logging(LOG_VERBOSE, "Test we can perform basic CRYPTO ERASE SANITIZE");
	ret = sanitize(iscsic, tgt_lun,
		       0, 0, SCSI_SANITIZE_CRYPTO_ERASE, 0, NULL);
	CU_ASSERT_EQUAL(ret, 0);


	data.size = 8;
	data.data = alloca(data.size);
	memset(data.data, 0, data.size);

	logging(LOG_VERBOSE, "CRYPTO_ERASE parameter list length must be 0");
	logging(LOG_VERBOSE, "Test that non-zero param length is an error for "
		"CRYPTO ERASE");
	ret = sanitize_invalidfieldincdb(iscsic, tgt_lun,
		       0, 0, SCSI_SANITIZE_CRYPTO_ERASE, 8, &data);
	CU_ASSERT_EQUAL(ret, 0);

	if (inq_bdc) {
		logging(LOG_VERBOSE, "Check WACEREQ setting and that READ "
			"after SANITIZE works correctly.");
		check_wacereq();
	}
}