/* 
   Copyright (C) 2013 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 <arpa/inet.h>
#include <CUnit/CUnit.h>

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

static int change_num;

static void my_iscsi_queue_pdu(struct iscsi_context *iscsi, struct iscsi_pdu *pdu)
{
        switch (change_num) {
        case 1:
                /* Set reserved bit 0x40 in byte 1 of the CDB */
                pdu->outdata.data[33] |= 0x40;
                break;
        case 2:
        case 3:
        case 4:
        case 5:
        case 6:
                /* Set reserved byte in the CDB */
                pdu->outdata.data[32 + change_num] = change_num;
                break;
        }

        change_num = 0;
        orig_queue_pdu(iscsi, pdu);
}

void test_sanitize_block_erase_reserved(void)
{
        int i;

        logging(LOG_VERBOSE, LOG_BLANK_LINE);
        logging(LOG_VERBOSE, "Test SANITIZE BLOCK_ERASE Reserved bits/bytes");

        CHECK_FOR_SANITIZE;
        CHECK_FOR_DATALOSS;
        CHECK_FOR_ISCSI(sd);

        /* override transport queue_pdu callback for PDU manipulation */
        sd->iscsi_ctx->drv->queue_pdu = my_iscsi_queue_pdu;

        logging(LOG_VERBOSE, "Send SANITIZE command with the reserved "
                "bit in byte 1 set to 1");
        change_num = 1;
        SANITIZE(sd, 0, 0, SCSI_SANITIZE_BLOCK_ERASE, 0, NULL,
                 EXPECT_INVALID_FIELD_IN_CDB);

        for (i = 2; i < 7; i++) {
                logging(LOG_VERBOSE, "Send SANITIZE command with the reserved "
                        "byte %d set to non-zero", i);
                change_num = i;

                SANITIZE(sd, 0, 0, SCSI_SANITIZE_BLOCK_ERASE, 0, NULL,
                         EXPECT_INVALID_FIELD_IN_CDB);
        }
}