400 lines
13 KiB
C
400 lines
13 KiB
C
/* -*- mode:c; tab-width:8; c-basic-offset:8; indent-tabs-mode:nil; -*- */
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/*
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Copyright (C) 2013 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 <string.h>
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#include <CUnit/CUnit.h>
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#include "iscsi.h"
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#include "iscsi-private.h"
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#include "scsi-lowlevel.h"
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#include "iscsi-test-cu.h"
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void
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test_write12_residuals(void)
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{
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struct scsi_task *task_ret;
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unsigned char buf[10000];
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struct iscsi_data data;
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int ret, ok;
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unsigned int i;
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logging(LOG_VERBOSE, LOG_BLANK_LINE);
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logging(LOG_VERBOSE, "Test WRITE12 commands with residuals");
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logging(LOG_VERBOSE, "Block size is %zu", block_size);
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CHECK_FOR_DATALOSS;
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CHECK_FOR_SBC;
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if (sd->iscsi_ctx == NULL) {
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const char *err = "[SKIPPED] This WRITE12 test is only "
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"supported for iSCSI backends";
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logging(LOG_NORMAL, "%s", err);
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CU_PASS(err);
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return;
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}
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/* Try a write12 of 1 block but xferlength == 0 */
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task = malloc(sizeof(struct scsi_task));
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CU_ASSERT_PTR_NOT_NULL_FATAL(task);
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memset(task, 0, sizeof(struct scsi_task));
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task->cdb[0] = SCSI_OPCODE_WRITE12;
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task->cdb[9] = 1;
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task->cdb_size = 12;
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task->xfer_dir = SCSI_XFER_WRITE;
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task->expxferlen = 0;
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/*
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* we don't want autoreconnect since some targets will drop the session
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* on this condition.
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*/
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iscsi_set_noautoreconnect(sd->iscsi_ctx, 1);
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logging(LOG_VERBOSE, "Try writing one block but with iSCSI expected transfer length==0");
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task_ret = iscsi_scsi_command_sync(sd->iscsi_ctx, sd->iscsi_lun, task, NULL);
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CU_ASSERT_PTR_NOT_NULL_FATAL(task_ret);
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CU_ASSERT_NOT_EQUAL(task->status, SCSI_STATUS_CANCELLED); /* XXX redundant? */
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if (task->status == SCSI_STATUS_CHECK_CONDITION
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&& task->sense.key == SCSI_SENSE_ILLEGAL_REQUEST
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&& task->sense.ascq == SCSI_SENSE_ASCQ_INVALID_OPERATION_CODE) {
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logging(LOG_NORMAL, "[SKIPPED] WRITE12 is not implemented.");
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CU_PASS("WRITE12 is not implemented.");
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return;
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}
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logging(LOG_VERBOSE, "Verify that the target returned SUCCESS");
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if (task->status != SCSI_STATUS_GOOD) {
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logging(LOG_VERBOSE, "[FAILED] Target returned error %s",
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iscsi_get_error(sd->iscsi_ctx));
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}
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CU_ASSERT_EQUAL(task->status, SCSI_STATUS_GOOD);
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logging(LOG_VERBOSE, "Verify residual overflow flag is set");
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if (task->residual_status != SCSI_RESIDUAL_OVERFLOW) {
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logging(LOG_VERBOSE, "[FAILED] Target did not set residual "
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"overflow flag");
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}
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CU_ASSERT_EQUAL(task->residual_status, SCSI_RESIDUAL_OVERFLOW);
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logging(LOG_VERBOSE, "Verify we got %zu bytes of residual overflow",
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block_size);
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if (task->residual != block_size) {
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logging(LOG_VERBOSE, "[FAILED] Target did not set correct "
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"amount of residual. Expected %zu but got %zu.",
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block_size, task->residual);
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}
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CU_ASSERT_EQUAL(task->residual, block_size);
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scsi_free_scsi_task(task);
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task = NULL;
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/* in case the previous test failed the session */
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iscsi_set_noautoreconnect(sd->iscsi_ctx, 0);
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logging(LOG_VERBOSE, "Try writing one block but with iSCSI expected transfer length==10000");
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task = malloc(sizeof(struct scsi_task));
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CU_ASSERT_PTR_NOT_NULL_FATAL(task);
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memset(task, 0, sizeof(struct scsi_task));
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task->cdb[0] = SCSI_OPCODE_WRITE12;
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task->cdb[9] = 1;
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task->cdb_size = 12;
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task->xfer_dir = SCSI_XFER_WRITE;
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task->expxferlen = 10000;
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memset(buf, 0xa6, sizeof(buf));
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data.size = task->expxferlen;
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data.data = &buf[0];
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task_ret = iscsi_scsi_command_sync(sd->iscsi_ctx, sd->iscsi_lun, task, &data);
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CU_ASSERT_PTR_NOT_NULL_FATAL(task_ret);
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logging(LOG_VERBOSE, "Verify that the target returned SUCCESS");
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if (task->status != SCSI_STATUS_GOOD) {
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logging(LOG_VERBOSE, "[FAILED] Target returned error %s",
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iscsi_get_error(sd->iscsi_ctx));
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}
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CU_ASSERT_EQUAL(task->status, SCSI_STATUS_GOOD);
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logging(LOG_VERBOSE, "Verify residual underflow flag is set");
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if (task->residual_status != SCSI_RESIDUAL_UNDERFLOW) {
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logging(LOG_VERBOSE, "[FAILED] Target did not set residual "
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"underflow flag");
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}
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CU_ASSERT_EQUAL(task->residual_status, SCSI_RESIDUAL_UNDERFLOW);
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logging(LOG_VERBOSE, "Verify we got %zu bytes of residual underflow",
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10000 - block_size);
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if (task->residual != 10000 - block_size) {
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logging(LOG_VERBOSE, "[FAILED] Target did not set correct "
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"amount of residual. Expected %zu but got %zu.",
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10000 - block_size, task->residual);
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}
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CU_ASSERT_EQUAL(task->residual, 10000 - block_size);
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scsi_free_scsi_task(task);
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task = NULL;
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logging(LOG_VERBOSE, "Try writing one block but with iSCSI expected transfer length==200");
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task = malloc(sizeof(struct scsi_task));
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CU_ASSERT_PTR_NOT_NULL_FATAL(task);
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memset(task, 0, sizeof(struct scsi_task));
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task->cdb[0] = SCSI_OPCODE_WRITE12;
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task->cdb[9] = 1;
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task->cdb_size = 12;
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task->xfer_dir = SCSI_XFER_WRITE;
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task->expxferlen = 200;
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data.size = task->expxferlen;
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data.data = &buf[0];
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task_ret = iscsi_scsi_command_sync(sd->iscsi_ctx, sd->iscsi_lun, task, &data);
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CU_ASSERT_PTR_NOT_NULL_FATAL(task_ret);
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logging(LOG_VERBOSE, "Verify that the target returned SUCCESS");
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ok = task->status == SCSI_STATUS_GOOD ||
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(task->status == SCSI_STATUS_CHECK_CONDITION &&
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task->sense.key == SCSI_SENSE_ILLEGAL_REQUEST &&
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task->sense.ascq == SCSI_SENSE_ASCQ_INVALID_FIELD_IN_INFORMATION_UNIT);
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if (!ok) {
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logging(LOG_VERBOSE, "[FAILED] Target returned error %s",
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iscsi_get_error(sd->iscsi_ctx));
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}
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CU_ASSERT(ok);
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logging(LOG_VERBOSE, "Verify residual overflow flag is set");
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if (task->residual_status != SCSI_RESIDUAL_OVERFLOW) {
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logging(LOG_VERBOSE, "[FAILED] Target did not set residual "
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"overflow flag");
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}
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CU_ASSERT_EQUAL(task->residual_status, SCSI_RESIDUAL_OVERFLOW);
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logging(LOG_VERBOSE, "Verify we got %zu bytes of residual overflow",
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block_size - 200);
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if (task->residual != block_size - 200) {
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logging(LOG_VERBOSE, "[FAILED] Target did not set correct "
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"amount of residual. Expected %zu but got %zu.",
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block_size - 200, task->residual);
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}
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CU_ASSERT_EQUAL(task->residual, block_size - 200);
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scsi_free_scsi_task(task);
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task = NULL;
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logging(LOG_VERBOSE, "Try writing two blocks but iSCSI expected "
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"transfer length==%zu (==one block)", block_size);
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task = malloc(sizeof(struct scsi_task));
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CU_ASSERT_PTR_NOT_NULL_FATAL(task);
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memset(task, 0, sizeof(struct scsi_task));
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task->cdb[0] = SCSI_OPCODE_WRITE12;
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task->cdb[9] = 2;
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task->cdb_size = 12;
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task->xfer_dir = SCSI_XFER_WRITE;
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task->expxferlen = block_size;
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data.size = task->expxferlen;
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data.data = &buf[0];
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task_ret = iscsi_scsi_command_sync(sd->iscsi_ctx, sd->iscsi_lun, task, &data);
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CU_ASSERT_PTR_NOT_NULL_FATAL(task_ret);
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logging(LOG_VERBOSE, "Verify that the target returned SUCCESS");
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if (task->status != SCSI_STATUS_GOOD) {
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logging(LOG_VERBOSE, "[FAILED] Target returned error %s",
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iscsi_get_error(sd->iscsi_ctx));
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}
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CU_ASSERT_EQUAL(task->status, SCSI_STATUS_GOOD);
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logging(LOG_VERBOSE, "Verify residual overflow flag is set");
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if (task->residual_status != SCSI_RESIDUAL_OVERFLOW) {
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logging(LOG_VERBOSE, "[FAILED] Target did not set residual "
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"overflow flag");
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}
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CU_ASSERT_EQUAL(task->residual_status, SCSI_RESIDUAL_OVERFLOW);
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logging(LOG_VERBOSE, "Verify we got one block of residual overflow");
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if (task->residual != block_size) {
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logging(LOG_VERBOSE, "[FAILED] Target did not set correct "
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"amount of residual. Expected %zu but got %zu.",
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block_size, task->residual);
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}
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CU_ASSERT_EQUAL(task->residual, block_size);
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scsi_free_scsi_task(task);
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task = NULL;
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logging(LOG_VERBOSE, "Verify that if iSCSI EDTL > SCSI TL then we only write SCSI TL amount of data");
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logging(LOG_VERBOSE, "Write two blocks of 'a'");
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memset(buf, 'a', 10000);
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ret = write12(sd, 0, 2 * block_size,
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block_size, 0, 0, 0, 0, 0, buf,
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EXPECT_STATUS_GOOD);
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CU_ASSERT_EQUAL(ret, 0);
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logging(LOG_VERBOSE, "Write one block of 'b' but set iSCSI EDTL to 2 blocks.");
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task = malloc(sizeof(struct scsi_task));
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CU_ASSERT_PTR_NOT_NULL_FATAL(task);
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memset(buf, 'b', 10000);
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memset(task, 0, sizeof(struct scsi_task));
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task->cdb[0] = SCSI_OPCODE_WRITE12;
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task->cdb[9] = 1;
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task->cdb_size = 12;
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task->xfer_dir = SCSI_XFER_WRITE;
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task->expxferlen = 2 * block_size;
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data.size = task->expxferlen;
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data.data = &buf[0];
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task_ret = iscsi_scsi_command_sync(sd->iscsi_ctx, sd->iscsi_lun, task, &data);
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CU_ASSERT_PTR_NOT_NULL_FATAL(task_ret);
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logging(LOG_VERBOSE, "Verify that the target returned SUCCESS");
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if (task->status != SCSI_STATUS_GOOD) {
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logging(LOG_VERBOSE, "[FAILED] Target returned error %s",
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iscsi_get_error(sd->iscsi_ctx));
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}
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CU_ASSERT_EQUAL(task->status, SCSI_STATUS_GOOD);
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logging(LOG_VERBOSE, "Verify residual underflow flag is set");
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if (task->residual_status != SCSI_RESIDUAL_UNDERFLOW) {
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logging(LOG_VERBOSE, "[FAILED] Target did not set residual "
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"underflow flag");
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}
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CU_ASSERT_EQUAL(task->residual_status, SCSI_RESIDUAL_UNDERFLOW);
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logging(LOG_VERBOSE, "Verify we got one block of residual underflow");
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if (task->residual != block_size) {
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logging(LOG_VERBOSE, "[FAILED] Target did not set correct "
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"amount of residual. Expected %zu but got %zu.",
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block_size, task->residual);
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}
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CU_ASSERT_EQUAL(task->residual, block_size);
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scsi_free_scsi_task(task);
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task = NULL;
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logging(LOG_VERBOSE, "Read the two blocks");
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ret = read12(sd, NULL, 0, 2* block_size,
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block_size, 0, 0, 0, 0, 0, buf,
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EXPECT_STATUS_GOOD);
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CU_ASSERT_EQUAL(ret, 0);
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logging(LOG_VERBOSE, "Verify that the first block was changed to 'b'");
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for (i = 0; i < block_size; i++) {
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if (buf[i] != 'b') {
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logging(LOG_NORMAL, "First block did not contain expected 'b'");
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CU_FAIL("Block was not written correctly");
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break;
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}
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}
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logging(LOG_VERBOSE, "Verify that the second block was NOT overwritten and still contains 'a'");
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for (i = block_size; i < 2 * block_size; i++) {
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if (buf[i] != 'a') {
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logging(LOG_NORMAL, "Second block was overwritten and no longer contain 'a'");
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CU_FAIL("Second block was incorrectly overwritten");
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break;
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}
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}
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logging(LOG_VERBOSE, "Verify that if iSCSI EDTL < SCSI TL then we only write iSCSI EDTL amount of data");
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logging(LOG_VERBOSE, "Write two blocks of 'a'");
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memset(buf, 'a', 10000);
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ret = write12(sd, 0, 2 * block_size,
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block_size, 0, 0, 0, 0, 0, buf,
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EXPECT_STATUS_GOOD);
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CU_ASSERT_EQUAL(ret, 0);
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logging(LOG_VERBOSE, "Write two blocks of 'b' but set iSCSI EDTL to 1 blocks.");
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task = malloc(sizeof(struct scsi_task));
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CU_ASSERT_PTR_NOT_NULL_FATAL(task);
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memset(buf, 'b', 10000);
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memset(task, 0, sizeof(struct scsi_task));
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task->cdb[0] = SCSI_OPCODE_WRITE12;
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task->cdb[9] = 2;
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task->cdb_size = 12;
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task->xfer_dir = SCSI_XFER_WRITE;
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task->expxferlen = block_size;
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data.size = task->expxferlen;
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data.data = &buf[0];
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task_ret = iscsi_scsi_command_sync(sd->iscsi_ctx, sd->iscsi_lun, task, &data);
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CU_ASSERT_PTR_NOT_NULL_FATAL(task_ret);
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logging(LOG_VERBOSE, "Verify that the target returned SUCCESS");
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if (task->status != SCSI_STATUS_GOOD) {
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logging(LOG_VERBOSE, "[FAILED] Target returned error %s",
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iscsi_get_error(sd->iscsi_ctx));
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}
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CU_ASSERT_EQUAL(task->status, SCSI_STATUS_GOOD);
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logging(LOG_VERBOSE, "Verify residual overflow flag is set");
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if (task->residual_status != SCSI_RESIDUAL_OVERFLOW) {
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logging(LOG_VERBOSE, "[FAILED] Target did not set residual "
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"overflow flag");
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}
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CU_ASSERT_EQUAL(task->residual_status, SCSI_RESIDUAL_OVERFLOW);
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logging(LOG_VERBOSE, "Verify we got one block of residual overflow");
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if (task->residual != block_size) {
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logging(LOG_VERBOSE, "[FAILED] Target did not set correct "
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"amount of residual. Expected %zu but got %zu.",
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block_size, task->residual);
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}
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CU_ASSERT_EQUAL(task->residual, block_size);
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scsi_free_scsi_task(task);
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task = NULL;
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logging(LOG_VERBOSE, "Read the two blocks");
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ret = read12(sd, NULL, 0, 2* block_size,
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block_size, 0, 0, 0, 0, 0, buf,
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EXPECT_STATUS_GOOD);
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CU_ASSERT_EQUAL(ret, 0);
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logging(LOG_VERBOSE, "Verify that the first block was changed to 'b'");
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for (i = 0; i < block_size; i++) {
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if (buf[i] != 'b') {
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logging(LOG_NORMAL, "First block did not contain expected 'b'");
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CU_FAIL("Block was not written correctly");
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break;
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}
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}
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logging(LOG_VERBOSE, "Verify that the second block was NOT overwritten and still contains 'a'");
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for (i = block_size; i < 2 * block_size; i++) {
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if (buf[i] != 'a') {
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logging(LOG_NORMAL, "Second block was overwritten and no longer contain 'a'");
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CU_FAIL("Second block was incorrectly overwritten");
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break;
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}
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}
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}
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