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2a5a0b3291c618eebccb51a129d7b3a2a7104616
libiscsi/lib/iscsi-command.c
Bart Van Assche 2a5a0b3291 Enable -Wno-unused-parameter 
Instead of adding __attribute__((unused)) to unused arguments, add the
-Wno-unused-parameter compiler flag.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
2021-05-23 13:23:41 -07:00

2739 lines
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/*
Copyright (C) 2010 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 Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#if defined(_WIN32)
#include <winsock2.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "iscsi.h"
#include "iscsi-private.h"
#include "scsi-lowlevel.h"
#include "slist.h"
static void
iscsi_scsi_response_cb(struct iscsi_context *iscsi, int status,
void *command_data, void *private_data)
{
struct iscsi_scsi_cbdata *scsi_cbdata =
(struct iscsi_scsi_cbdata *)private_data;
switch (status) {
case SCSI_STATUS_RESERVATION_CONFLICT:
case SCSI_STATUS_CHECK_CONDITION:
case SCSI_STATUS_GOOD:
case SCSI_STATUS_BUSY:
case SCSI_STATUS_CONDITION_MET:
case SCSI_STATUS_TASK_SET_FULL:
case SCSI_STATUS_ACA_ACTIVE:
case SCSI_STATUS_TASK_ABORTED:
case SCSI_STATUS_ERROR:
case SCSI_STATUS_CANCELLED:
case SCSI_STATUS_TIMEOUT:
scsi_cbdata->task->status = status;
if (scsi_cbdata->callback) {
scsi_cbdata->callback(iscsi, status, scsi_cbdata->task,
scsi_cbdata->private_data);
}
return;
default:
scsi_cbdata->task->status = SCSI_STATUS_ERROR;
iscsi_set_error(iscsi, "Cant handle scsi status %d yet.",
status);
if (scsi_cbdata->callback) {
scsi_cbdata->callback(iscsi, SCSI_STATUS_ERROR, scsi_cbdata->task,
scsi_cbdata->private_data);
}
}
}
static int
iscsi_send_data_out(struct iscsi_context *iscsi, struct iscsi_pdu *cmd_pdu,
uint32_t ttt, uint32_t offset, uint32_t tot_len)
{
while (tot_len > 0) {
uint32_t len = tot_len;
struct iscsi_pdu *pdu;
int flags;
len = MIN(len, iscsi->target_max_recv_data_segment_length);
pdu = iscsi_allocate_pdu(iscsi,
ISCSI_PDU_DATA_OUT,
ISCSI_PDU_NO_PDU,
cmd_pdu->itt,
ISCSI_PDU_DROP_ON_RECONNECT|ISCSI_PDU_DELETE_WHEN_SENT);
if (pdu == NULL) {
iscsi_set_error(iscsi, "Out-of-memory, Failed to allocate "
"scsi data out pdu.");
goto error;
}
pdu->scsi_cbdata.task = cmd_pdu->scsi_cbdata.task;
/* set the cmdsn in the pdu struct so we can compare with
* maxcmdsn when sending to socket even if data-out pdus
* do not carry a cmdsn on the wire */
pdu->cmdsn = cmd_pdu->cmdsn;
if (tot_len == len) {
flags = ISCSI_PDU_SCSI_FINAL;
} else {
flags = 0;
}
/* flags */
iscsi_pdu_set_pduflags(pdu, flags);
/* lun */
iscsi_pdu_set_lun(pdu, cmd_pdu->lun);
/* ttt */
iscsi_pdu_set_ttt(pdu, ttt);
/* data sn */
iscsi_pdu_set_datasn(pdu, cmd_pdu->datasn++);
/* buffer offset */
iscsi_pdu_set_bufferoffset(pdu, offset);
pdu->payload_offset = offset;
pdu->payload_len = len;
/* update data segment length */
scsi_set_uint32(&pdu->outdata.data[4], pdu->payload_len);
if (iscsi_queue_pdu(iscsi, pdu) != 0) {
iscsi_set_error(iscsi, "Out-of-memory: failed to queue iscsi "
"scsi pdu.");
goto error;
}
tot_len -= len;
offset += len;
}
return 0;
error:
ISCSI_LIST_REMOVE(&iscsi->outqueue, cmd_pdu);
ISCSI_LIST_REMOVE(&iscsi->waitpdu, cmd_pdu);
if (cmd_pdu->callback) {
cmd_pdu->callback(iscsi, SCSI_STATUS_ERROR, NULL,
cmd_pdu->private_data);
}
iscsi->drv->free_pdu(iscsi, cmd_pdu);
return -1;
}
static int
iscsi_send_unsolicited_data_out(struct iscsi_context *iscsi, struct iscsi_pdu *pdu)
{
uint32_t len = MIN(pdu->expxferlen, iscsi->first_burst_length) - pdu->payload_len;
return iscsi_send_data_out(iscsi, pdu, 0xffffffff,
pdu->payload_len, len);
}
/* Using 'struct iscsi_data *d' for data-out is optional
* and will be converted into a one element data-out iovector.
*/
int
iscsi_scsi_command_async(struct iscsi_context *iscsi, int lun,
struct scsi_task *task, iscsi_command_cb cb,
struct iscsi_data *d, void *private_data)
{
struct iscsi_pdu *pdu;
int flags;
if (iscsi->old_iscsi) {
iscsi = iscsi->old_iscsi;
ISCSI_LOG(iscsi, 2, "iscsi_scsi_command_async: queuing cmd to old_iscsi while reconnecting");
}
if (iscsi->session_type != ISCSI_SESSION_NORMAL) {
iscsi_set_error(iscsi, "Trying to send command on "
"discovery session.");
return -1;
}
if (iscsi->is_loggedin == 0 && !iscsi->pending_reconnect) {
iscsi_set_error(iscsi, "Trying to send command while "
"not logged in.");
return -1;
}
/* We got an actual buffer from the application. Convert it to
* a data-out iovector.
*/
if (d != NULL && d->data != NULL) {
struct scsi_iovec *iov;
iov = scsi_malloc(task, sizeof(struct scsi_iovec));
if (iov == NULL) {
return -1;
}
iov->iov_base = d->data;
iov->iov_len = d->size;
scsi_task_set_iov_out(task, iov, 1);
}
pdu = iscsi_allocate_pdu(iscsi,
ISCSI_PDU_SCSI_REQUEST,
ISCSI_PDU_SCSI_RESPONSE,
iscsi_itt_post_increment(iscsi),
0);
if (pdu == NULL) {
iscsi_set_error(iscsi, "Out-of-memory, Failed to allocate "
"scsi pdu.");
return -1;
}
pdu->scsi_cbdata.task = task;
pdu->scsi_cbdata.callback = cb;
pdu->scsi_cbdata.private_data = private_data;
pdu->payload_offset = 0;
pdu->payload_len = 0;
scsi_set_task_private_ptr(task, &pdu->scsi_cbdata);
/* flags */
flags = ISCSI_PDU_SCSI_FINAL|ISCSI_PDU_SCSI_ATTR_SIMPLE;
switch (task->xfer_dir) {
case SCSI_XFER_NONE:
break;
case SCSI_XFER_READ:
flags |= ISCSI_PDU_SCSI_READ;
break;
case SCSI_XFER_WRITE:
flags |= ISCSI_PDU_SCSI_WRITE;
/* If we can send immediate data, send as much as we can */
if (iscsi->use_immediate_data == ISCSI_IMMEDIATE_DATA_YES) {
uint32_t len = task->expxferlen;
len = MIN(len, iscsi->first_burst_length);
len = MIN(len, iscsi->target_max_recv_data_segment_length);
pdu->payload_offset = 0;
pdu->payload_len = len;
/* update data segment length */
scsi_set_uint32(&pdu->outdata.data[4], pdu->payload_len);
}
/* We have (more) data to send and we are allowed to send
* it as unsolicited data-out segments.
* Drop the F-flag from the pdu and start sending a train
* of data-out further below.
*/
if (iscsi->use_initial_r2t == ISCSI_INITIAL_R2T_NO
&& pdu->payload_len < (uint32_t)task->expxferlen
&& pdu->payload_len < iscsi->first_burst_length) {
/* We have more data to send, and we are allowed to send
* unsolicited data, so don't flag this PDU as final.
*/
flags &= ~ISCSI_PDU_SCSI_FINAL;
}
break;
}
iscsi_pdu_set_pduflags(pdu, flags);
/* lun */
iscsi_pdu_set_lun(pdu, lun);
pdu->lun = lun;
/* expxferlen */
iscsi_pdu_set_expxferlen(pdu, task->expxferlen);
/* cmdsn */
iscsi_pdu_set_cmdsn(pdu, iscsi->cmdsn);
/* cdb */
iscsi_pdu_set_cdb(pdu, task);
pdu->callback = iscsi_scsi_response_cb;
pdu->private_data = &pdu->scsi_cbdata;
if (iscsi_queue_pdu(iscsi, pdu) != 0) {
iscsi_set_error(iscsi, "Out-of-memory: failed to queue iscsi "
"scsi pdu.");
iscsi->drv->free_pdu(iscsi, pdu);
return -1;
}
iscsi->cmdsn++;
/* The F flag is not set. This means we haven't sent all the unsolicited
* data yet. Sent as much as we are allowed as a train of DATA-OUT PDUs.
* We might already have sent some data as immediate data, which we must
* subtract from first_burst_length.
*/
if (!(flags & ISCSI_PDU_SCSI_FINAL)) {
iscsi_send_unsolicited_data_out(iscsi, pdu);
}
/* remember cmdsn and itt so we can use task management */
task->cmdsn = pdu->cmdsn;
task->itt = pdu->itt;
task->lun = lun;
return 0;
}
/* Parse a sense key specific sense data descriptor */
static void parse_sense_spec(struct scsi_sense *sense, const uint8_t inf[3])
{
if (!(inf[0] & 0x80)) /* SKSV */
return;
sense->sense_specific = 1;
sense->ill_param_in_cdb = !!(inf[0] & 0x40); /* C/D flag */
if (inf[0] & 8) { /* BPV */
sense->bit_pointer_valid = 1;
sense->bit_pointer = inf[0] & 7;
}
sense->field_pointer = scsi_get_uint16(&inf[1]);
}
/* Parse descriptor format sense data */
static void parse_sense_descriptors(struct scsi_sense *sense, const uint8_t *sb,
unsigned sb_len)
{
const unsigned char *p, *const end = sb + sb_len;
for (p = sb; p < end; p += p[1]) {
uint8_t addl_len = p[1];
if (addl_len < 4)
break;
switch (p[0]) {
case 0:
/* Information descriptor with VALID flag */
if (addl_len == 0x0a && p[2] & 0x80) {
sense->info_valid = 1;
sense->information = scsi_get_uint64(p + 4);
}
break;
case 2:
/* Sense key specific sense data descriptor */
if (addl_len == 0x06)
parse_sense_spec(sense, p + 4);
break;
}
}
}
void scsi_parse_sense_data(struct scsi_sense *sense, const uint8_t *sb)
{
sense->error_type = sb[0] & 0x7f;
switch (sense->error_type) {
case 0x70:
case 0x71:
/* Fixed format */
sense->key = sb[2] & 0x0f;
if (sb[0] & 0x80) { /* VALID */
sense->info_valid = 1;
sense->information = scsi_get_uint32(sb + 3);
}
sense->ascq = scsi_get_uint16(&sb[12]);
parse_sense_spec(sense, sb + 15);
break;
case 0x72:
case 0x73:
/* Descriptor format */
sense->key = sb[1] & 0x0f;
sense->ascq = scsi_get_uint16(&sb[2]);
parse_sense_descriptors(sense, sb + 8, sb[7]);
break;
}
}
int
iscsi_process_scsi_reply(struct iscsi_context *iscsi, struct iscsi_pdu *pdu,
struct iscsi_in_pdu *in)
{
uint8_t flags, response, status;
struct iscsi_scsi_cbdata *scsi_cbdata = &pdu->scsi_cbdata;
struct scsi_task *task = scsi_cbdata->task;
flags = in->hdr[1];
if ((flags&ISCSI_PDU_DATA_FINAL) == 0) {
iscsi_set_error(iscsi, "scsi response pdu but Final bit is "
"not set: 0x%02x.", flags);
if (pdu->callback) {
pdu->callback(iscsi, SCSI_STATUS_ERROR, task,
pdu->private_data);
}
return -1;
}
if ((flags&ISCSI_PDU_DATA_ACK_REQUESTED) != 0) {
iscsi_set_error(iscsi, "scsi response asked for ACK "
"0x%02x.", flags);
if (pdu->callback) {
pdu->callback(iscsi, SCSI_STATUS_ERROR, task,
pdu->private_data);
}
return -1;
}
response = in->hdr[2];
task->residual_status = SCSI_RESIDUAL_NO_RESIDUAL;
task->residual = 0;
if (flags & (ISCSI_PDU_DATA_RESIDUAL_OVERFLOW|
ISCSI_PDU_DATA_RESIDUAL_UNDERFLOW)) {
if (response != 0) {
iscsi_set_error(iscsi, "protocol error: flags %#02x;"
" response %#02x.", flags, response);
if (pdu->callback) {
pdu->callback(iscsi, SCSI_STATUS_ERROR, task,
pdu->private_data);
}
return -1;
}
task->residual = scsi_get_uint32(&in->hdr[44]);
if (flags & ISCSI_PDU_DATA_RESIDUAL_UNDERFLOW) {
task->residual_status = SCSI_RESIDUAL_UNDERFLOW;
} else {
task->residual_status = SCSI_RESIDUAL_OVERFLOW;
}
}
status = in->hdr[3];
switch (status) {
case SCSI_STATUS_GOOD:
case SCSI_STATUS_CONDITION_MET:
task->datain.data = pdu->indata.data;
task->datain.size = pdu->indata.size;
/* the pdu->datain.data was malloc'ed by iscsi_malloc,
as long as we have no struct iscsi_task we cannot track
the free'ing of this buffer which is currently
done in scsi_free_scsi_task() */
if (pdu->indata.data != NULL) iscsi->frees++;
pdu->indata.data = NULL;
pdu->indata.size = 0;
if (pdu->callback) {
pdu->callback(iscsi, SCSI_STATUS_GOOD, task,
pdu->private_data);
}
break;
case SCSI_STATUS_CHECK_CONDITION:
task->datain.size = in->data_pos;
task->datain.data = malloc(task->datain.size);
if (task->datain.data == NULL) {
iscsi_set_error(iscsi, "failed to allocate blob for "
"sense data");
break;
}
memcpy(task->datain.data, in->data, task->datain.size);
scsi_parse_sense_data(&task->sense, &task->datain.data[2]);
iscsi_set_error(iscsi, "SENSE KEY:%s(%d) ASCQ:%s(0x%04x)",
scsi_sense_key_str(task->sense.key),
task->sense.key,
scsi_sense_ascq_str(task->sense.ascq),
task->sense.ascq);
if (task->sense.key == SCSI_SENSE_ILLEGAL_REQUEST) {
iscsi_dump_pdu_header(iscsi, pdu->outdata.data);
}
if (pdu->callback) {
pdu->callback(iscsi, SCSI_STATUS_CHECK_CONDITION, task,
pdu->private_data);
}
break;
case SCSI_STATUS_RESERVATION_CONFLICT:
iscsi_set_error(iscsi, "RESERVATION CONFLICT");
if (pdu->callback) {
pdu->callback(iscsi, SCSI_STATUS_RESERVATION_CONFLICT,
task, pdu->private_data);
}
break;
case SCSI_STATUS_TASK_SET_FULL:
iscsi_set_error(iscsi, "TASK_SET_FULL");
if (pdu->callback) {
pdu->callback(iscsi, SCSI_STATUS_TASK_SET_FULL,
task, pdu->private_data);
}
break;
case SCSI_STATUS_ACA_ACTIVE:
iscsi_set_error(iscsi, "ACA_ACTIVE");
if (pdu->callback) {
pdu->callback(iscsi, SCSI_STATUS_ACA_ACTIVE,
task, pdu->private_data);
}
break;
case SCSI_STATUS_TASK_ABORTED:
iscsi_set_error(iscsi, "TASK_ABORTED");
if (pdu->callback) {
pdu->callback(iscsi, SCSI_STATUS_TASK_ABORTED,
task, pdu->private_data);
}
break;
case SCSI_STATUS_BUSY:
iscsi_set_error(iscsi, "BUSY");
if (pdu->callback) {
pdu->callback(iscsi, SCSI_STATUS_BUSY,
task, pdu->private_data);
}
break;
default:
iscsi_set_error(iscsi, "Unknown SCSI status :%d.", status);
if (pdu->callback) {
pdu->callback(iscsi, SCSI_STATUS_ERROR,
task, pdu->private_data);
}
return -1;
}
return 0;
}
int
iscsi_process_scsi_data_in(struct iscsi_context *iscsi, struct iscsi_pdu *pdu,
struct iscsi_in_pdu *in, int *is_finished)
{
uint32_t flags, status;
struct iscsi_scsi_cbdata *scsi_cbdata = &pdu->scsi_cbdata;
struct scsi_task *task = scsi_cbdata->task;
int dsl;
flags = in->hdr[1];
if ((flags&ISCSI_PDU_DATA_ACK_REQUESTED) != 0) {
iscsi_set_error(iscsi, "scsi response asked for ACK "
"0x%02x.", flags);
if (pdu->callback) {
pdu->callback(iscsi, SCSI_STATUS_ERROR, task,
pdu->private_data);
}
return -1;
}
dsl = scsi_get_uint32(&in->hdr[4]) & 0x00ffffff;
/* Don't add to reassembly buffer if we already have a user buffer */
if (task->iovector_in.iov == NULL) {
if (iscsi_add_data(iscsi, &pdu->indata, in->data, dsl, 0) != 0) {
iscsi_set_error(iscsi, "Out-of-memory: failed to add data "
"to pdu in buffer.");
return -1;
}
}
if ((flags&ISCSI_PDU_DATA_FINAL) == 0) {
*is_finished = 0;
}
if ((flags&ISCSI_PDU_DATA_CONTAINS_STATUS) == 0) {
*is_finished = 0;
}
if (*is_finished == 0) {
return 0;
}
task->residual_status = SCSI_RESIDUAL_NO_RESIDUAL;
task->residual = 0;
/*
* These flags should only be set if the S flag is also set
*/
if (flags & (ISCSI_PDU_DATA_RESIDUAL_OVERFLOW|ISCSI_PDU_DATA_RESIDUAL_UNDERFLOW)) {
task->residual = scsi_get_uint32(&in->hdr[44]);
if (flags & ISCSI_PDU_DATA_RESIDUAL_UNDERFLOW) {
task->residual_status = SCSI_RESIDUAL_UNDERFLOW;
} else {
task->residual_status = SCSI_RESIDUAL_OVERFLOW;
}
}
/* this was the final data-in packet in the sequence and it has
* the s-bit set, so invoke the callback.
*/
status = in->hdr[3];
task->datain.data = pdu->indata.data;
task->datain.size = pdu->indata.size;
/* the pdu->indata.data was malloc'ed by iscsi_malloc,
as long as we have no struct iscsi_task we cannot track
the free'ing of this buffer which is currently
done in scsi_free_scsi_task() */
if (pdu->indata.data != NULL) iscsi->frees++;
pdu->indata.data = NULL;
pdu->indata.size = 0;
if (pdu->callback) {
pdu->callback(iscsi, status, task, pdu->private_data);
}
return 0;
}
int
iscsi_process_r2t(struct iscsi_context *iscsi, struct iscsi_pdu *pdu,
struct iscsi_in_pdu *in)
{
uint32_t ttt, offset, len;
ttt = scsi_get_uint32(&in->hdr[20]);
offset = scsi_get_uint32(&in->hdr[40]);
len = scsi_get_uint32(&in->hdr[44]);
pdu->datasn = 0;
iscsi_send_data_out(iscsi, pdu, ttt, offset, len);
return 0;
}
/*
* SCSI commands
*/
struct scsi_task *
iscsi_testunitready_task(struct iscsi_context *iscsi, int lun,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_testunitready();
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"testunitready cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_reportluns_task(struct iscsi_context *iscsi, int report_type,
int alloc_len, iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
if (alloc_len < 16) {
iscsi_set_error(iscsi, "Minimum allowed alloc len for "
"reportluns is 16. You specified %d.",
alloc_len);
return NULL;
}
task = scsi_reportluns_cdb(report_type, alloc_len);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"reportluns cdb.");
return NULL;
}
/* report luns are always sent to lun 0 */
if (iscsi_scsi_command_async(iscsi, 0, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_inquiry_task(struct iscsi_context *iscsi, int lun, int evpd,
int page_code, int maxsize,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_inquiry(evpd, page_code, maxsize);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"inquiry cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_readcapacity10_task(struct iscsi_context *iscsi, int lun, int lba,
int pmi, iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_readcapacity10(lba, pmi);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"readcapacity10 cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_readcapacity16_task(struct iscsi_context *iscsi, int lun,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_readcapacity16();
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"readcapacity16 cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_readdefectdata10_task(struct iscsi_context *iscsi, int lun,
int req_plist, int req_glist,
int defect_list_format, uint16_t alloc_len,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_readdefectdata10(req_plist, req_glist,
defect_list_format, alloc_len);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"readdefectdata10 cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_readdefectdata12_task(struct iscsi_context *iscsi, int lun,
int req_plist, int req_glist,
int defect_list_format,
uint32_t address_descriptor_index,
uint32_t alloc_len,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_readdefectdata12(req_plist, req_glist,
defect_list_format,
address_descriptor_index, alloc_len);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"readdefectdata12 cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_get_lba_status_task(struct iscsi_context *iscsi, int lun,
uint64_t starting_lba, uint32_t alloc_len,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_get_lba_status(starting_lba, alloc_len);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"get-lba-status cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_read6_iov_task(struct iscsi_context *iscsi, int lun, uint32_t lba,
uint32_t datalen, int blocksize,
iscsi_command_cb cb, void *private_data, struct scsi_iovec *iov, int niov)
{
struct scsi_task *task;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of "
"the blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_read6(lba, datalen, blocksize);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"read6 cdb.");
return NULL;
}
if (iov != NULL)
scsi_task_set_iov_in(task, iov, niov);
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_read6_task(struct iscsi_context *iscsi, int lun, uint32_t lba,
uint32_t datalen, int blocksize,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of "
"the blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_read6(lba, datalen, blocksize);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"read6 cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_read10_iov_task(struct iscsi_context *iscsi, int lun, uint32_t lba,
uint32_t datalen, int blocksize,
int rdprotect, int dpo, int fua, int fua_nv, int group_number,
iscsi_command_cb cb, void *private_data, struct scsi_iovec *iov, int niov)
{
struct scsi_task *task;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of "
"the blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_read10(lba, datalen, blocksize, rdprotect,
dpo, fua, fua_nv, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"read10 cdb.");
return NULL;
}
if (iov != NULL)
scsi_task_set_iov_in(task, iov, niov);
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_read10_task(struct iscsi_context *iscsi, int lun, uint32_t lba,
uint32_t datalen, int blocksize,
int rdprotect, int dpo, int fua, int fua_nv, int group_number,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of "
"the blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_read10(lba, datalen, blocksize, rdprotect,
dpo, fua, fua_nv, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"read10 cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_read12_iov_task(struct iscsi_context *iscsi, int lun, uint32_t lba,
uint32_t datalen, int blocksize,
int rdprotect, int dpo, int fua, int fua_nv, int group_number,
iscsi_command_cb cb, void *private_data, struct scsi_iovec *iov, int niov)
{
struct scsi_task *task;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of "
"the blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_read12(lba, datalen, blocksize, rdprotect,
dpo, fua, fua_nv, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"read12 cdb.");
return NULL;
}
if (iov != NULL)
scsi_task_set_iov_in(task, iov, niov);
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_read12_task(struct iscsi_context *iscsi, int lun, uint32_t lba,
uint32_t datalen, int blocksize,
int rdprotect, int dpo, int fua, int fua_nv, int group_number,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of "
"the blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_read12(lba, datalen, blocksize, rdprotect,
dpo, fua, fua_nv, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"read12 cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_read16_iov_task(struct iscsi_context *iscsi, int lun, uint64_t lba,
uint32_t datalen, int blocksize,
int rdprotect, int dpo, int fua, int fua_nv, int group_number,
iscsi_command_cb cb, void *private_data, struct scsi_iovec *iov, int niov)
{
struct scsi_task *task;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of "
"the blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_read16(lba, datalen, blocksize, rdprotect,
dpo, fua, fua_nv, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"read16 cdb.");
return NULL;
}
if (iov != NULL)
scsi_task_set_iov_in(task, iov, niov);
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_read16_task(struct iscsi_context *iscsi, int lun, uint64_t lba,
uint32_t datalen, int blocksize,
int rdprotect, int dpo, int fua, int fua_nv, int group_number,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of "
"the blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_read16(lba, datalen, blocksize, rdprotect,
dpo, fua, fua_nv, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"read16 cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_write10_task(struct iscsi_context *iscsi, int lun, uint32_t lba,
unsigned char *data, uint32_t datalen, int blocksize,
int wrprotect, int dpo, int fua, int fua_nv, int group_number,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_write10(lba, datalen, blocksize, wrprotect,
dpo, fua, fua_nv, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"write10 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_write10_iov_task(struct iscsi_context *iscsi, int lun, uint32_t lba,
unsigned char *data, uint32_t datalen, int blocksize,
int wrprotect, int dpo, int fua, int fua_nv, int group_number,
iscsi_command_cb cb, void *private_data, struct scsi_iovec *iov, int niov)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_write10(lba, datalen, blocksize, wrprotect,
dpo, fua, fua_nv, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"write10 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iov != NULL)
scsi_task_set_iov_out(task, iov, niov);
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_write12_task(struct iscsi_context *iscsi, int lun, uint32_t lba,
unsigned char *data, uint32_t datalen, int blocksize,
int wrprotect, int dpo, int fua, int fua_nv, int group_number,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_write12(lba, datalen, blocksize, wrprotect,
dpo, fua, fua_nv, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"write12 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_write12_iov_task(struct iscsi_context *iscsi, int lun, uint32_t lba,
unsigned char *data, uint32_t datalen, int blocksize,
int wrprotect, int dpo, int fua, int fua_nv, int group_number,
iscsi_command_cb cb, void *private_data, struct scsi_iovec *iov, int niov)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_write12(lba, datalen, blocksize, wrprotect,
dpo, fua, fua_nv, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"write12 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iov != NULL)
scsi_task_set_iov_out(task, iov, niov);
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_write16_task(struct iscsi_context *iscsi, int lun, uint64_t lba,
unsigned char *data, uint32_t datalen, int blocksize,
int wrprotect, int dpo, int fua, int fua_nv, int group_number,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_write16(lba, datalen, blocksize, wrprotect,
dpo, fua, fua_nv, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"write16 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_write16_iov_task(struct iscsi_context *iscsi, int lun, uint64_t lba,
unsigned char *data, uint32_t datalen, int blocksize,
int wrprotect, int dpo, int fua, int fua_nv, int group_number,
iscsi_command_cb cb, void *private_data, struct scsi_iovec *iov, int niov)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_write16(lba, datalen, blocksize, wrprotect,
dpo, fua, fua_nv, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"write16 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iov != NULL)
scsi_task_set_iov_out(task, iov, niov);
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_writeatomic16_task(struct iscsi_context *iscsi, int lun, uint64_t lba,
unsigned char *data, uint32_t datalen, int blocksize,
int wrprotect, int dpo, int fua, int group_number,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_writeatomic16(lba, datalen, blocksize, wrprotect,
dpo, fua, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"writeAtomic16 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_writeatomic16_iov_task(struct iscsi_context *iscsi, int lun, uint64_t lba,
unsigned char *data, uint32_t datalen, int blocksize,
int wrprotect, int dpo, int fua, int group_number,
iscsi_command_cb cb, void *private_data,
struct scsi_iovec *iov, int niov)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_writeatomic16(lba, datalen, blocksize, wrprotect,
dpo, fua, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"writeAtomic16 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iov != NULL)
scsi_task_set_iov_out(task, iov, niov);
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_orwrite_task(struct iscsi_context *iscsi, int lun, uint64_t lba,
unsigned char *data, uint32_t datalen, int blocksize,
int wrprotect, int dpo, int fua, int fua_nv, int group_number,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_orwrite(lba, datalen, blocksize, wrprotect,
dpo, fua, fua_nv, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"orwrite cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_orwrite_iov_task(struct iscsi_context *iscsi, int lun, uint64_t lba,
unsigned char *data, uint32_t datalen, int blocksize,
int wrprotect, int dpo, int fua, int fua_nv, int group_number,
iscsi_command_cb cb, void *private_data, struct scsi_iovec *iov, int niov)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_orwrite(lba, datalen, blocksize, wrprotect,
dpo, fua, fua_nv, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"orwrite cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iov != NULL)
scsi_task_set_iov_out(task, iov, niov);
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_compareandwrite_task(struct iscsi_context *iscsi, int lun, uint64_t lba,
unsigned char *data, uint32_t datalen, int blocksize,
int wrprotect, int dpo, int fua, int fua_nv, int group_number,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % (blocksize * 2) != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize * 2:%d.", datalen, blocksize * 2);
return NULL;
}
task = scsi_cdb_compareandwrite(lba, datalen, blocksize, wrprotect,
dpo, fua, fua_nv, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"compareandwrite cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_compareandwrite_iov_task(struct iscsi_context *iscsi, int lun, uint64_t lba,
unsigned char *data, uint32_t datalen, int blocksize,
int wrprotect, int dpo, int fua, int fua_nv, int group_number,
iscsi_command_cb cb, void *private_data, struct scsi_iovec *iov, int niov)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % (blocksize * 2) != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize * 2:%d.", datalen, blocksize * 2);
return NULL;
}
task = scsi_cdb_compareandwrite(lba, datalen, blocksize, wrprotect,
dpo, fua, fua_nv, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"compareandwrite cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iov != NULL)
scsi_task_set_iov_out(task, iov, niov);
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_writeverify10_task(struct iscsi_context *iscsi, int lun, uint32_t lba,
unsigned char *data, uint32_t datalen, int blocksize,
int wrprotect, int dpo, int bytchk, int group_number,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_writeverify10(lba, datalen, blocksize, wrprotect,
dpo, bytchk, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"writeverify10 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_writeverify10_iov_task(struct iscsi_context *iscsi, int lun, uint32_t lba,
unsigned char *data, uint32_t datalen, int blocksize,
int wrprotect, int dpo, int bytchk, int group_number,
iscsi_command_cb cb, void *private_data,
struct scsi_iovec *iov, int niov)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_writeverify10(lba, datalen, blocksize, wrprotect,
dpo, bytchk, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"writeverify10 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iov != NULL)
scsi_task_set_iov_out(task, iov, niov);
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_writeverify12_task(struct iscsi_context *iscsi, int lun, uint32_t lba,
unsigned char *data, uint32_t datalen, int blocksize,
int wrprotect, int dpo, int bytchk, int group_number,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_writeverify12(lba, datalen, blocksize, wrprotect,
dpo, bytchk, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"writeverify12 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_writeverify12_iov_task(struct iscsi_context *iscsi, int lun, uint32_t lba,
unsigned char *data, uint32_t datalen, int blocksize,
int wrprotect, int dpo, int bytchk, int group_number,
iscsi_command_cb cb, void *private_data,
struct scsi_iovec *iov, int niov)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_writeverify12(lba, datalen, blocksize, wrprotect,
dpo, bytchk, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"writeverify12 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iov != NULL)
scsi_task_set_iov_out(task, iov, niov);
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_writeverify16_task(struct iscsi_context *iscsi, int lun, uint64_t lba,
unsigned char *data, uint32_t datalen, int blocksize,
int wrprotect, int dpo, int bytchk, int group_number,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_writeverify16(lba, datalen, blocksize, wrprotect,
dpo, bytchk, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"writeverify16 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_writeverify16_iov_task(struct iscsi_context *iscsi, int lun, uint64_t lba,
unsigned char *data, uint32_t datalen, int blocksize,
int wrprotect, int dpo, int bytchk, int group_number,
iscsi_command_cb cb, void *private_data,
struct scsi_iovec *iov, int niov)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_writeverify16(lba, datalen, blocksize, wrprotect,
dpo, bytchk, group_number);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"writeverify16 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iov != NULL)
scsi_task_set_iov_out(task, iov, niov);
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_verify10_task(struct iscsi_context *iscsi, int lun, unsigned char *data,
uint32_t datalen, uint32_t lba, int vprotect, int dpo, int bytchk, int blocksize,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_verify10(lba, datalen, vprotect, dpo, bytchk, blocksize);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"verify10 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_verify10_iov_task(struct iscsi_context *iscsi, int lun, unsigned char *data,
uint32_t datalen, uint32_t lba, int vprotect, int dpo, int bytchk, int blocksize,
iscsi_command_cb cb, void *private_data, struct scsi_iovec *iov, int niov)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_verify10(lba, datalen, vprotect, dpo, bytchk, blocksize);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"verify10 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iov != NULL)
scsi_task_set_iov_out(task, iov, niov);
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_verify12_task(struct iscsi_context *iscsi, int lun, unsigned char *data,
uint32_t datalen, uint32_t lba, int vprotect, int dpo, int bytchk, int blocksize,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_verify12(lba, datalen, vprotect, dpo, bytchk, blocksize);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"verify12 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_verify12_iov_task(struct iscsi_context *iscsi, int lun, unsigned char *data,
uint32_t datalen, uint32_t lba, int vprotect, int dpo, int bytchk, int blocksize,
iscsi_command_cb cb, void *private_data, struct scsi_iovec *iov, int niov)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_verify12(lba, datalen, vprotect, dpo, bytchk, blocksize);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"verify12 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iov != NULL)
scsi_task_set_iov_out(task, iov, niov);
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_verify16_task(struct iscsi_context *iscsi, int lun, unsigned char *data,
uint32_t datalen, uint64_t lba, int vprotect, int dpo, int bytchk, int blocksize,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_verify16(lba, datalen, vprotect, dpo, bytchk, blocksize);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"verify16 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_verify16_iov_task(struct iscsi_context *iscsi, int lun, unsigned char *data,
uint32_t datalen, uint64_t lba, int vprotect, int dpo, int bytchk, int blocksize,
iscsi_command_cb cb, void *private_data, struct scsi_iovec *iov, int niov)
{
struct scsi_task *task;
struct iscsi_data d;
if (datalen % blocksize != 0) {
iscsi_set_error(iscsi, "Datalen:%d is not a multiple of the "
"blocksize:%d.", datalen, blocksize);
return NULL;
}
task = scsi_cdb_verify16(lba, datalen, vprotect, dpo, bytchk, blocksize);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"verify16 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iov != NULL)
scsi_task_set_iov_out(task, iov, niov);
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_modeselect6_task(struct iscsi_context *iscsi, int lun,
int pf, int sp, struct scsi_mode_page *mp,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
struct scsi_data *data;
struct iscsi_data d;
task = scsi_cdb_modeselect6(pf, sp, 255);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"modeselect6 cdb.");
return NULL;
}
data = scsi_modesense_dataout_marshall(task, mp, 1);
if (data == NULL) {
iscsi_set_error(iscsi, "Error: Failed to marshall "
"modesense dataout buffer.");
scsi_free_scsi_task(task);
return NULL;
}
d.data = data->data;
d.size = data->size;
task->cdb[4] = data->size;
task->expxferlen = data->size;
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_modeselect10_task(struct iscsi_context *iscsi, int lun,
int pf, int sp, struct scsi_mode_page *mp,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
struct scsi_data *data;
struct iscsi_data d;
task = scsi_cdb_modeselect10(pf, sp, 255);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"modeselect10 cdb.");
return NULL;
}
data = scsi_modesense_dataout_marshall(task, mp, 0);
if (data == NULL) {
iscsi_set_error(iscsi, "Error: Failed to marshall "
"modesense dataout buffer.");
scsi_free_scsi_task(task);
return NULL;
}
d.data = data->data;
d.size = data->size;
task->cdb[7] = data->size >> 8;
task->cdb[8] = data->size & 0xff;
task->expxferlen = data->size;
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_modesense6_task(struct iscsi_context *iscsi, int lun, int dbd, int pc,
int page_code, int sub_page_code,
unsigned char alloc_len,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_modesense6(dbd, pc, page_code, sub_page_code,
alloc_len);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"modesense6 cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_modesense10_task(struct iscsi_context *iscsi, int lun,
int llbaa, int dbd, int pc,
int page_code, int sub_page_code,
unsigned char alloc_len,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_modesense10(llbaa, dbd, pc, page_code, sub_page_code,
alloc_len);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"modesense10 cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_startstopunit_task(struct iscsi_context *iscsi, int lun,
int immed, int pcm, int pc,
int no_flush, int loej, int start,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_startstopunit(immed, pcm, pc, no_flush,
loej, start);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"startstopunit cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_preventallow_task(struct iscsi_context *iscsi, int lun,
int prevent,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_preventallow(prevent);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"PreventAllowMediumRemoval cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_synchronizecache10_task(struct iscsi_context *iscsi, int lun, int lba,
int num_blocks, int syncnv, int immed,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_synchronizecache10(lba, num_blocks, syncnv,
immed);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"synchronizecache10 cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_synchronizecache16_task(struct iscsi_context *iscsi, int lun, uint64_t lba,
uint32_t num_blocks, int syncnv, int immed,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_synchronizecache16(lba, num_blocks, syncnv,
immed);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"synchronizecache16 cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_persistent_reserve_in_task(struct iscsi_context *iscsi, int lun,
int sa, uint16_t xferlen,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_persistent_reserve_in(sa, xferlen);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"persistent-reserver-in cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_persistent_reserve_out_task(struct iscsi_context *iscsi, int lun,
int sa, int scope, int type, void *param,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_persistent_reserve_out(sa, scope, type, param);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"persistent-reserver-out cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_prefetch10_task(struct iscsi_context *iscsi, int lun, uint32_t lba,
int num_blocks, int immed, int group,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_prefetch10(lba, num_blocks, immed, group);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"prefetch10 cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_prefetch16_task(struct iscsi_context *iscsi, int lun, uint64_t lba,
int num_blocks, int immed, int group,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_prefetch16(lba, num_blocks, immed, group);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"prefetch16 cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_writesame10_task(struct iscsi_context *iscsi, int lun, uint32_t lba,
unsigned char *data, uint32_t datalen,
uint16_t num_blocks,
int anchor, int unmap, int wrprotect, int group,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
struct iscsi_data d;
task = scsi_cdb_writesame10(wrprotect, anchor, unmap, lba, group,
num_blocks, datalen);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"writesame10 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (data != NULL) {
task->expxferlen = datalen;
} else {
task->expxferlen = 0;
task->xfer_dir = SCSI_XFER_NONE;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_writesame10_iov_task(struct iscsi_context *iscsi, int lun, uint32_t lba,
unsigned char *data, uint32_t datalen,
uint16_t num_blocks,
int anchor, int unmap, int wrprotect, int group,
iscsi_command_cb cb, void *private_data,
struct scsi_iovec *iov, int niov)
{
struct scsi_task *task;
struct iscsi_data d;
task = scsi_cdb_writesame10(wrprotect, anchor, unmap, lba, group,
num_blocks, datalen);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"writesame10 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iov != NULL)
scsi_task_set_iov_out(task, iov, niov);
if (data != NULL) {
task->expxferlen = datalen;
} else {
task->expxferlen = 0;
task->xfer_dir = SCSI_XFER_NONE;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_writesame16_task(struct iscsi_context *iscsi, int lun, uint64_t lba,
unsigned char *data, uint32_t datalen,
uint32_t num_blocks,
int anchor, int unmap, int wrprotect, int group,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
struct iscsi_data d;
task = scsi_cdb_writesame16(wrprotect, anchor, unmap, lba, group,
num_blocks, datalen);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"writesame16 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (data != NULL) {
task->expxferlen = datalen;
} else {
task->expxferlen = 0;
task->xfer_dir = SCSI_XFER_NONE;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_writesame16_iov_task(struct iscsi_context *iscsi, int lun, uint64_t lba,
unsigned char *data, uint32_t datalen,
uint32_t num_blocks,
int anchor, int unmap, int wrprotect, int group,
iscsi_command_cb cb, void *private_data,
struct scsi_iovec *iov, int niov)
{
struct scsi_task *task;
struct iscsi_data d;
task = scsi_cdb_writesame16(wrprotect, anchor, unmap, lba, group,
num_blocks, datalen);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"writesame16 cdb.");
return NULL;
}
d.data = data;
d.size = datalen;
if (iov != NULL)
scsi_task_set_iov_out(task, iov, niov);
if (data != NULL) {
task->expxferlen = datalen;
} else {
task->expxferlen = 0;
task->xfer_dir = SCSI_XFER_NONE;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
&d, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_unmap_task(struct iscsi_context *iscsi, int lun, int anchor, int group,
struct unmap_list *list, int list_len,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
struct scsi_iovec *iov;
unsigned char *data;
int xferlen;
int i;
xferlen = 8 + list_len * 16;
task = scsi_cdb_unmap(anchor, group, xferlen);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"unmap cdb.");
return NULL;
}
data = scsi_malloc(task, xferlen);
if (data == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"unmap parameters.");
scsi_free_scsi_task(task);
return NULL;
}
scsi_set_uint16(&data[0], xferlen - 2);
scsi_set_uint16(&data[2], xferlen - 8);
for (i = 0; i < list_len; i++) {
scsi_set_uint32(&data[8 + 16 * i], list[i].lba >> 32);
scsi_set_uint32(&data[8 + 16 * i + 4], list[i].lba & 0xffffffff);
scsi_set_uint32(&data[8 + 16 * i + 8], list[i].num);
}
iov = scsi_malloc(task, sizeof(struct scsi_iovec));
if (iov == NULL) {
scsi_free_scsi_task(task);
return NULL;
}
iov->iov_base = data;
iov->iov_len = xferlen;
scsi_task_set_iov_out(task, iov, 1);
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_iovector *
iscsi_get_scsi_task_iovector_in(struct iscsi_context *iscsi, struct iscsi_in_pdu *in)
{
struct iscsi_pdu *pdu;
uint32_t itt;
if ((in->hdr[0] & 0x3f) != ISCSI_PDU_DATA_IN) {
return NULL;
}
itt = scsi_get_uint32(&in->hdr[16]);
for (pdu = iscsi->waitpdu; pdu; pdu = pdu->next) {
if (pdu->itt == itt) {
break;
}
}
if (pdu == NULL) {
return NULL;
}
if (pdu->scsi_cbdata.task->iovector_in.iov == NULL) {
return NULL;
}
return &pdu->scsi_cbdata.task->iovector_in;
}
struct scsi_iovector *
iscsi_get_scsi_task_iovector_out(struct iscsi_context *iscsi, struct iscsi_pdu *pdu)
{
if (pdu->scsi_cbdata.task->iovector_out.iov == NULL) {
return NULL;
}
return &pdu->scsi_cbdata.task->iovector_out;
}
struct scsi_task *
iscsi_readtoc_task(struct iscsi_context *iscsi, int lun, int msf,
int format, int track_session, int maxsize,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_readtoc(msf, format, track_session, maxsize);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"read TOC cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_reserve6_task(struct iscsi_context *iscsi, int lun,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_reserve6();
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"reserve6 cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_release6_task(struct iscsi_context *iscsi, int lun,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_release6();
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"release6 cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_sanitize_task(struct iscsi_context *iscsi, int lun,
int immed, int ause, int sa, int param_len,
struct iscsi_data *data,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_sanitize(immed, ause, sa, param_len);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"sanitize cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
data, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_sanitize_block_erase_task(struct iscsi_context *iscsi, int lun,
int immed, int ause,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_sanitize(immed, ause, SCSI_SANITIZE_BLOCK_ERASE, 0);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"sanitize cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_sanitize_crypto_erase_task(struct iscsi_context *iscsi, int lun,
int immed, int ause,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_sanitize(immed, ause, SCSI_SANITIZE_CRYPTO_ERASE, 0);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"sanitize cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_sanitize_exit_failure_mode_task(struct iscsi_context *iscsi, int lun,
int immed, int ause,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_sanitize(immed, ause,
SCSI_SANITIZE_EXIT_FAILURE_MODE, 0);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"sanitize cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_report_supported_opcodes_task(struct iscsi_context *iscsi, int lun,
int rctd, int options,
int opcode, int sa,
uint32_t alloc_len,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_report_supported_opcodes(rctd, options, opcode, sa,
alloc_len);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"Maintenance In/Read Supported Op Codes cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_receive_copy_results_task(struct iscsi_context *iscsi, int lun,
int sa, int list_id, int alloc_len,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_receive_copy_results(sa, list_id, alloc_len);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"RECEIVE COPY RESULTS cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
NULL, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_extended_copy_task(struct iscsi_context *iscsi, int lun,
struct iscsi_data *param_data,
iscsi_command_cb cb, void *private_data)
{
struct scsi_task *task;
task = scsi_cdb_extended_copy(param_data->size);
if (task == NULL) {
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
"EXTENDED COPY cdb.");
return NULL;
}
if (iscsi_scsi_command_async(iscsi, lun, task, cb,
param_data, private_data) != 0) {
scsi_free_scsi_task(task);
return NULL;
}
return task;
}
struct scsi_task *
iscsi_scsi_get_task_from_pdu(struct iscsi_pdu *pdu)
{
return pdu->scsi_cbdata.task;
}
int
iscsi_scsi_cancel_task(struct iscsi_context *iscsi,
struct scsi_task *task)
{
struct iscsi_pdu *pdu;
struct iscsi_pdu *next_pdu;
uint32_t cmdsn_gap = 0;
int ret = -1;
for (pdu = iscsi->waitpdu; pdu; pdu = pdu->next) {
if (pdu->itt == task->itt) {
ISCSI_LIST_REMOVE(&iscsi->waitpdu, pdu);
if (pdu->callback) {
pdu->callback(iscsi, SCSI_STATUS_CANCELLED, NULL,
pdu->private_data);
}
iscsi->drv->free_pdu(iscsi, pdu);
return 0;
}
}
for (pdu = iscsi->outqueue; pdu; pdu = next_pdu) {
next_pdu = pdu->next;
if (cmdsn_gap > 0) {
iscsi_pdu_set_cmdsn(pdu, pdu->cmdsn - cmdsn_gap);
}
if (pdu->itt == task->itt) {
ISCSI_LIST_REMOVE(&iscsi->outqueue, pdu);
if (pdu->callback) {
pdu->callback(iscsi, SCSI_STATUS_CANCELLED, NULL,
pdu->private_data);
}
if (!(pdu->outdata.data[0] & ISCSI_PDU_IMMEDIATE) &&
(pdu->outdata.data[0] & 0x3f) != ISCSI_PDU_DATA_OUT) {
iscsi->cmdsn--;
cmdsn_gap++;
}
iscsi->drv->free_pdu(iscsi, pdu);
ret = 0;
if (!cmdsn_gap) {
break;
}
}
}
if (iscsi->old_iscsi) {
return iscsi_scsi_cancel_task(iscsi->old_iscsi, task);
}
return ret;
}
void
iscsi_scsi_cancel_all_tasks(struct iscsi_context *iscsi)
{
iscsi_cancel_pdus(iscsi);
if (iscsi->old_iscsi) {
iscsi_cancel_pdus(iscsi->old_iscsi);
}
}
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