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/*
Copyright (C) 2012 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 "iscsi.h"
#include "scsi-lowlevel.h"
#include "iscsi-test.h"
int T0213_read12_0blocks(const char *initiator, const char *url, int data_loss _U_, int show_info)
{
struct iscsi_context *iscsi;
struct scsi_task *task;
struct scsi_readcapacity16 *rc16;
int ret = 0, lun;
uint32_t block_size;
uint64_t num_blocks;
printf("0213_read12_0blocks:\n");
printf("====================\n");
if (show_info) {
printf("Test that READ12 works correctly when transfer length is 0 blocks.\n");
printf("1, Read at LBA:0 should work.\n");
printf("2, Read at one block beyond end-of-lun should fail. (only on LUNs with less than 2^31 blocks)\n");
printf("3, Read at LBA:2^31 should fail (only on LUNs with less than 2^31 blocks).\n");
printf("4, Read at LBA:-1 should fail (only on LUNs with less than 2^31 blocks).\n");
printf("\n");
printf("\n");
return 0;
}
iscsi = iscsi_context_login(initiator, url, &lun);
if (iscsi == NULL) {
printf("Failed to login to target\n");
return -1;
}
/* find the size of the LUN */
task = iscsi_readcapacity16_sync(iscsi, lun);
if (task == NULL) {
printf("Failed to send READCAPACITY16 command: %s\n", iscsi_get_error(iscsi));
ret = -1;
goto finished;
}
if (task->status != SCSI_STATUS_GOOD) {
printf("READCAPACITY16 command: failed with sense. %s\n", iscsi_get_error(iscsi));
ret = -1;
scsi_free_scsi_task(task);
goto finished;
}
rc16 = scsi_datain_unmarshall(task);
if (rc16 == NULL) {
printf("failed to unmarshall READCAPACITY16 data. %s\n", iscsi_get_error(iscsi));
ret = -1;
scsi_free_scsi_task(task);
goto finished;
}
block_size = rc16->block_length;
num_blocks = rc16->returned_lba;
scsi_free_scsi_task(task);
printf("READ12 0blocks at LBA:0 ... ");
task = iscsi_read12_sync(iscsi, lun, 0, 0, block_size, 0, 0, 0, 0, 0);
if (task == NULL) {
printf("[FAILED]\n");
printf("Failed to send READ12 command: %s\n", iscsi_get_error(iscsi));
ret = -1;
goto test2;
}
if (task->status != SCSI_STATUS_GOOD) {
printf("[FAILED]\n");
printf("READ12 command: failed with sense. %s\n", iscsi_get_error(iscsi));
ret = -1;
scsi_free_scsi_task(task);
goto test2;
}
scsi_free_scsi_task(task);
printf("[OK]\n");
test2:
printf("READ12 0blocks at one block beyond <end-of-LUN> ... ");
if (num_blocks > 0x80000000) {
printf("[SKIPPED]\n");
printf("LUN is too big, skipping test\n");
goto test3;
}
task = iscsi_read12_sync(iscsi, lun, num_blocks + 1, 0, block_size, 0, 0, 0, 0, 0);
if (task == NULL) {
printf("[FAILED]\n");
printf("Failed to send READ12 command: %s\n", iscsi_get_error(iscsi));
ret = -1;
goto test3;
}
if (task->status == SCSI_STATUS_GOOD) {
printf("[FAILED]\n");
printf("READ12 command: Should fail when reading 0blocks beyond end\n");
ret = -1;
scsi_free_scsi_task(task);
goto test3;
}
if (task->status != SCSI_STATUS_CHECK_CONDITION
|| task->sense.key != SCSI_SENSE_ILLEGAL_REQUEST
|| task->sense.ascq != SCSI_SENSE_ASCQ_LBA_OUT_OF_RANGE) {
printf("[FAILED]\n");
printf("READ12 failed but ascq was wrong. Should have failed with ILLEGAL_REQUEST/LBA_OUT_OF_RANGE. Sense:%s\n", iscsi_get_error(iscsi));
ret = -1;
scsi_free_scsi_task(task);
goto test3;
}
scsi_free_scsi_task(task);
printf("[OK]\n");
test3:
printf("READ12 0blocks at LBA 2^31 ... ");
if (num_blocks > 0x80000000) {
printf("[SKIPPED]\n");
printf("LUN is too big, skipping test\n");
goto test4;
}
task = iscsi_read12_sync(iscsi, lun, 0x80000000, 0, block_size, 0, 0, 0, 0, 0);
if (task == NULL) {
printf("[FAILED]\n");
printf("Failed to send READ12 command: %s\n", iscsi_get_error(iscsi));
ret = -1;
goto test4;
}
if (task->status == SCSI_STATUS_GOOD) {
printf("[FAILED]\n");
printf("READ12 command: Should fail when reading 0blocks at 2^31\n");
ret = -1;
scsi_free_scsi_task(task);
goto test4;
}
if (task->status != SCSI_STATUS_CHECK_CONDITION
|| task->sense.key != SCSI_SENSE_ILLEGAL_REQUEST
|| task->sense.ascq != SCSI_SENSE_ASCQ_LBA_OUT_OF_RANGE) {
printf("[FAILED]\n");
printf("READ12 failed but ascq was wrong. Should have failed with ILLEGAL_REQUEST/LBA_OUT_OF_RANGE. Sense:%s\n", iscsi_get_error(iscsi));
ret = -1;
scsi_free_scsi_task(task);
goto test4;
}
scsi_free_scsi_task(task);
printf("[OK]\n");
test4:
printf("READ12 0blocks at LBA -1 ... ");
if (num_blocks > 0x80000000) {
printf("[SKIPPED]\n");
printf("LUN is too big, skipping test\n");
goto test5;
}
task = iscsi_read12_sync(iscsi, lun, -1, 0, block_size, 0, 0, 0, 0, 0);
if (task == NULL) {
printf("[FAILED]\n");
printf("Failed to send READ12 command: %s\n", iscsi_get_error(iscsi));
ret = -1;
goto test5;
}
if (task->status == SCSI_STATUS_GOOD) {
printf("[FAILED]\n");
printf("READ12 command: Should fail when reading 0blocks at -1\n");
ret = -1;
scsi_free_scsi_task(task);
goto test5;
}
if (task->status != SCSI_STATUS_CHECK_CONDITION
|| task->sense.key != SCSI_SENSE_ILLEGAL_REQUEST
|| task->sense.ascq != SCSI_SENSE_ASCQ_LBA_OUT_OF_RANGE) {
printf("[FAILED]\n");
printf("READ12 failed but ascq was wrong. Should have failed with ILLEGAL_REQUEST/LBA_OUT_OF_RANGE. Sense:%s\n", iscsi_get_error(iscsi));
ret = -1;
scsi_free_scsi_task(task);
goto test5;
}
scsi_free_scsi_task(task);
printf("[OK]\n");
test5:
finished:
iscsi_logout_sync(iscsi);
iscsi_destroy_context(iscsi);
return ret;
}
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