184 lines
7.1 KiB
C
184 lines
7.1 KiB
C
/*
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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 <CUnit/CUnit.h>
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#include "iscsi.h"
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#include "scsi-lowlevel.h"
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#include "iscsi-support.h"
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#include "iscsi-test-cu.h"
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static void check_lbp(int *supports_lbp)
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{
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*supports_lbp = 0;
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CHECK_FOR_THIN_PROVISIONING;
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*supports_lbp = 1;
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}
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void
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test_inquiry_block_limits(void)
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{
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int supports_lbp, ret;
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struct scsi_inquiry_block_limits *bl;
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struct scsi_task *bl_task = NULL;
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struct scsi_inquiry_logical_block_provisioning *lbp = NULL;
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struct scsi_task *lbp_task = NULL;
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logging(LOG_VERBOSE, LOG_BLANK_LINE);
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logging(LOG_VERBOSE, "Test of the INQUIRY Block Limits");
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CHECK_FOR_SBC;
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logging(LOG_VERBOSE, "Block device. Verify that we can read Block "
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"Limits VPD");
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ret = inquiry(sd, &bl_task,
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1, SCSI_INQUIRY_PAGECODE_BLOCK_LIMITS, 255,
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EXPECT_STATUS_GOOD);
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CU_ASSERT_EQUAL(ret, 0);
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if (ret != 0) {
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logging(LOG_NORMAL, "[FAILURE] failed to send inquiry.");
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goto finished;
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}
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bl = scsi_datain_unmarshall(bl_task);
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if (bl == NULL) {
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logging(LOG_NORMAL, "[FAILURE] failed to unmarshall inquiry "
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"datain blob.");
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CU_FAIL("[FAILURE] failed to unmarshall inquiry "
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"datain blob.");
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goto finished;
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}
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logging(LOG_VERBOSE, "Verify that the PageLength matches up with the "
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"size of the DATA-IN buffer.");
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CU_ASSERT_EQUAL(bl_task->datain.size, bl_task->datain.data[3] + 4);
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if (bl_task->datain.size != bl_task->datain.data[3] + 4) {
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logging(LOG_NORMAL, "[FAILURE] Invalid PageLength returned. "
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"Was %d but expected %d",
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bl_task->datain.data[3], bl_task->datain.size - 4);
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} else {
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logging(LOG_VERBOSE, "[SUCCESS] PageLength matches DataIn "
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"buffer size");
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}
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logging(LOG_VERBOSE, "Verify that the PageLength matches SCSI-level.");
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/* if it is not SBC3 then we assume it must be SBC2 */
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if (sbc3_support) {
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logging(LOG_VERBOSE, "Device claims SBC-3. Verify that " "page size is >= 60");
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} else {
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logging(LOG_VERBOSE, "Device is not SBC-3. Verify that "
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"PageLength == 8 (but allow >= 60 too. Some SBC-2 "
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"devices support some SBC-3 features.");
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}
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if (bl_task->datain.data[3] == 8) {
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if (sbc3_support) {
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logging(LOG_NORMAL, "[FAILURE] Invalid PageLength "
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"returned. SBC3 claimed but page length "
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"is 8.");
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CU_FAIL("[FAILED] Invalid pagelength returned. "
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"SBC3 claimed but page length is 8.");
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}
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} else if (bl_task->datain.size >= 60) {
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if (!sbc3_support) {
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logging(LOG_NORMAL, "[WARNING] SBC-3 pagelength "
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"(>=60) returned but SBC-3 support was not "
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"claimed in the standard inquiry page.");
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CU_FAIL("[WARNING] SBC-3 pagelength "
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"(>=60) returned but SBC-3 support was not "
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"claimed in the standard inquiry page.");
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}
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}
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if (bl_task->datain.data[3] != 0x3c) {
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goto finished;
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}
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check_lbp(&supports_lbp);
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if (!supports_lbp)
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goto finished;
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/*
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* MAXIMUM UNMAP LBA COUNT
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* MAXIMUM UNMAP BLOCK DESCRIPTOR COUNT
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*/
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logging(LOG_VERBOSE, "Try reading the logical block provisioning VPD");
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ret = inquiry(sd, &lbp_task,
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1, SCSI_INQUIRY_PAGECODE_LOGICAL_BLOCK_PROVISIONING, 255,
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EXPECT_STATUS_GOOD);
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if (ret == 0) {
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lbp = scsi_datain_unmarshall(lbp_task);
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if (lbp == NULL) {
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logging(LOG_NORMAL, "[FAILURE] failed to unmarshall "
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"inquiry datain blob.");
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}
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}
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if (lbp && lbp->lbpu) {
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/* We support UNMAP so MAXIMUM UNMAP LBA COUNT and
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* MAXIMUM UNMAP BLOCK DESCRIPTOR COUNT.
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* They must be > 0.
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* It can be 0xffffffff which means no limit, but if there is
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* an explicit limit set, then we check that it looks sane.
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* Sane here means < 1M.
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*/
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logging(LOG_VERBOSE, "Device claims UNMAP support via LBPU");
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logging(LOG_VERBOSE, "Verify that MAXIMUM UNMAP LBA COUNT is "
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"not 0");
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CU_ASSERT_NOT_EQUAL(bl->max_unmap, 0);
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logging(LOG_VERBOSE, "Verify that MAXIMUM UNMAP LBA COUNT is "
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"at least 2^LBPPBE");
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CU_ASSERT_EQUAL(bl->max_unmap >= (1U << rc16->lbppbe), 1);
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if (bl->max_unmap != 0xffffffff) {
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logging(LOG_VERBOSE, "Verify that MAXIMUM UNMAP LBA "
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"COUNT is not insanely big");
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CU_ASSERT_TRUE(bl->max_unmap <= 1024*1024);
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}
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logging(LOG_VERBOSE, "Verify that MAXIMUM UNMAP BLOCK "
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"DESCRIPTOR COUNT is not 0");
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CU_ASSERT_NOT_EQUAL(bl->max_unmap_bdc, 0);
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if (bl->max_unmap_bdc != 0xffffffff) {
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logging(LOG_VERBOSE, "Verify that MAXIMUM UNMAP "
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"BLOCK DESCRIPTOR COUNT is not insanely big");
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CU_ASSERT_TRUE(bl->max_unmap_bdc <= 1024*1024);
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}
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} else {
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logging(LOG_VERBOSE, "Device does not claim UNMAP support via "
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"LBPU");
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logging(LOG_VERBOSE, "Verify that MAXIMUM UNMAP LBA COUNT is "
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"0");
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CU_ASSERT_EQUAL(bl->max_unmap, 0);
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logging(LOG_VERBOSE, "Verify that MAXIMUM UNMAP BLOCK "
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"DESCRIPTOR COUNT is 0");
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CU_ASSERT_EQUAL(bl->max_unmap_bdc, 0);
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}
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finished:
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scsi_free_scsi_task(bl_task);
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scsi_free_scsi_task(lbp_task);
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}
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