127 lines
3.7 KiB
C
127 lines
3.7 KiB
C
/*
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Copyright (C) 2013 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 <inttypes.h>
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#include <stdlib.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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void
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test_compareandwrite_simple(void)
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{
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int i, ret;
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unsigned j;
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unsigned char *buf = alloca(2 * 256 * block_size);
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CHECK_FOR_DATALOSS;
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CHECK_FOR_SBC;
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logging(LOG_VERBOSE, LOG_BLANK_LINE);
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logging(LOG_VERBOSE, "Test COMPARE_AND_WRITE of 1-256 blocks at the "
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"start of the LUN");
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for (i = 1; i < 256; i++) {
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logging(LOG_VERBOSE, "Write %d blocks of 'A' at LBA:0", i);
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memset(buf, 'A', 2 * i * block_size);
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if (maximum_transfer_length && maximum_transfer_length < i) {
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break;
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}
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ret = write16(iscsic, tgt_lun, 0, i * block_size,
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block_size, 0, 0, 0, 0, 0, buf);
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if (ret == -2) {
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logging(LOG_NORMAL, "[SKIPPED] WRITE16 is not implemented.");
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CU_PASS("WRITE16 is not implemented.");
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return;
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}
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CU_ASSERT_EQUAL(ret, 0);
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memset(buf + i * block_size, 'B', i * block_size);
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logging(LOG_VERBOSE, "Overwrite %d blocks with 'B' "
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"at LBA:0 (if they all contain 'A')", i);
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ret = compareandwrite(iscsic, tgt_lun, 0,
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buf, 2 * i * block_size, block_size, 0, 0, 0, 0);
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if (ret == -2) {
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CU_PASS("[SKIPPED] Target does not support "
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"COMPARE_AND_WRITE. Skipping test");
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return;
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}
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CU_ASSERT_EQUAL(ret, 0);
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logging(LOG_VERBOSE, "Read %d blocks at LBA:0 and verify "
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"they are all 'B'", i);
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ret = read16(iscsic, tgt_lun, 0, i * block_size,
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block_size, 0, 0, 0, 0, 0, buf);
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CU_ASSERT_EQUAL(ret, 0);
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for (j = 0; j < i * block_size; j++) {
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if (buf[j] != 'B') {
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logging(LOG_VERBOSE, "[FAILED] Data did not "
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"read back as 'B'");
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CU_FAIL("Block was not written correctly");
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return;
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}
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}
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}
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logging(LOG_VERBOSE, "Test COMPARE_AND_WRITE of 1-256 blocks at the "
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"end of the LUN");
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for (i = 1; i < 256; i++) {
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logging(LOG_VERBOSE, "Write %d blocks of 'A' at LBA:%" PRIu64,
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i, num_blocks - i);
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memset(buf, 'A', 2 * i * block_size);
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if (maximum_transfer_length && maximum_transfer_length < i) {
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break;
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}
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ret = write16(iscsic, tgt_lun, num_blocks - i, i * block_size,
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block_size, 0, 0, 0, 0, 0, buf);
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CU_ASSERT_EQUAL(ret, 0);
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memset(buf + i * block_size, 'B', i * block_size);
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logging(LOG_VERBOSE, "Overwrite %d blocks with 'B' "
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"at LBA:%" PRIu64 " (if they all contain 'A')",
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i, num_blocks - i);
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ret = compareandwrite(iscsic, tgt_lun, num_blocks - i,
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buf, 2 * i * block_size, block_size, 0, 0, 0, 0);
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CU_ASSERT_EQUAL(ret, 0);
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logging(LOG_VERBOSE, "Read %d blocks at LBA:%" PRIu64
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" and verify they are all 'B'",
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i, num_blocks - i);
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ret = read16(iscsic, tgt_lun, num_blocks - i, i * block_size,
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block_size, 0, 0, 0, 0, 0, buf);
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CU_ASSERT_EQUAL(ret, 0);
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for (j = 0; j < i * block_size; j++) {
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if (buf[j] != 'B') {
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logging(LOG_VERBOSE, "[FAILED] Data did not "
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"read back as 'B'");
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CU_FAIL("Block was not written correctly");
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return;
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}
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}
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}
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}
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