138 lines
3.9 KiB
C
138 lines
3.9 KiB
C
/*
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Copyright (C) 2012 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "iscsi.h"
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#include "scsi-lowlevel.h"
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#include "iscsi-test.h"
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int T0272_verify16_mismatch_no_cmp(const char *initiator, const char *url, int data_loss _U_, int show_info)
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{
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struct iscsi_context *iscsi;
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struct scsi_task *task;
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struct scsi_task *vtask;
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struct scsi_readcapacity16 *rc16;
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int ret, i, lun;
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uint32_t block_size;
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uint64_t num_blocks;
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printf("0272_verify16_mismatch_no_cmp:\n");
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printf("==============================\n");
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if (show_info) {
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printf("Test VERIFY16 BYTCHK:0 should not detect mismatches.\n");
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printf("1, Verify the first 1-256 blocks does nto detect a mismatch if BYTCHK is 0\n");
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printf("\n");
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return 0;
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}
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iscsi = iscsi_context_login(initiator, url, &lun);
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if (iscsi == NULL) {
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printf("Failed to login to target\n");
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return -1;
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}
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/* find the size of the LUN */
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task = iscsi_readcapacity16_sync(iscsi, lun);
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if (task == NULL) {
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printf("Failed to send readcapacity16 command: %s\n", iscsi_get_error(iscsi));
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ret = -1;
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goto finished;
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}
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if (task->status != SCSI_STATUS_GOOD) {
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printf("Readcapacity16 command: failed with sense. %s\n", iscsi_get_error(iscsi));
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ret = -1;
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scsi_free_scsi_task(task);
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goto finished;
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}
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rc16 = scsi_datain_unmarshall(task);
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if (rc16 == NULL) {
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printf("failed to unmarshall readcapacity16 data. %s\n", iscsi_get_error(iscsi));
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ret = -1;
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scsi_free_scsi_task(task);
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goto finished;
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}
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block_size = rc16->block_length;
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num_blocks = rc16->returned_lba;
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scsi_free_scsi_task(task);
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ret = 0;
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/* read and verify the first 1 - 256 blocks at the start of the LUN */
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printf("Read+verify first 1-256 blocks ... ");
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for (i = 1; i <= 256; i++) {
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unsigned char *buf;
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task = iscsi_read16_sync(iscsi, lun, 0, i * block_size, block_size, 0, 0, 0, 0, 0);
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if (task == NULL) {
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printf("[FAILED]\n");
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printf("Failed to send read16 command: %s\n", iscsi_get_error(iscsi));
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ret = -1;
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goto finished;
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}
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if (task->status != SCSI_STATUS_GOOD) {
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printf("[FAILED]\n");
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printf("Read16 command: failed with sense. %s\n", iscsi_get_error(iscsi));
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ret = -1;
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scsi_free_scsi_task(task);
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goto finished;
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}
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buf = task->datain.data;
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if (buf == NULL) {
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printf("[FAILED]\n");
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printf("Failed to access DATA-IN buffer %s\n", iscsi_get_error(iscsi));
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ret = -1;
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scsi_free_scsi_task(task);
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goto finished;
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}
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/* flip a random byte in the data */
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buf[random() % task->datain.size] ^= 'X';
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/* bytechk == 0 ==> target should NOT compate the data so should
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not detect the mismatch.
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*/
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vtask = iscsi_verify16_sync(iscsi, lun, buf, i * block_size, 0, 0, 1, 0, block_size);
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if (vtask == NULL) {
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printf("[FAILED]\n");
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printf("Failed to send verify16 command: %s\n", iscsi_get_error(iscsi));
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ret = -1;
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scsi_free_scsi_task(task);
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goto finished;
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}
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if (vtask->status != SCSI_STATUS_GOOD) {
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printf("[FAILED]\n");
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printf("Verify16 returned sense but BYTCHK==1 means it should not check/compare the data.\n");
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ret = -1;
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scsi_free_scsi_task(task);
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scsi_free_scsi_task(vtask);
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goto finished;
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}
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scsi_free_scsi_task(task);
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scsi_free_scsi_task(vtask);
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}
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printf("[OK]\n");
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finished:
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iscsi_logout_sync(iscsi);
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iscsi_destroy_context(iscsi);
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return ret;
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}
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