91267f5aaa
RFC3270 describes in section 12.14 that immediate and unsolicited data sent from the initiator to the target must not exceed FristBurstLength bytes in total.
1549 lines
39 KiB
C
1549 lines
39 KiB
C
/*
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Copyright (C) 2010 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 Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser 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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#if defined(WIN32)
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#include <winsock2.h>
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#else
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#include <arpa/inet.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "iscsi.h"
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#include "iscsi-private.h"
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#include "scsi-lowlevel.h"
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#include "slist.h"
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struct iscsi_scsi_cbdata {
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struct iscsi_scsi_cbdata *prev, *next;
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iscsi_command_cb callback;
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void *private_data;
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struct scsi_task *task;
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};
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void
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iscsi_free_scsi_cbdata(struct iscsi_scsi_cbdata *scsi_cbdata)
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{
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if (scsi_cbdata == NULL) {
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return;
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}
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if (scsi_cbdata->task != NULL) {
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scsi_cbdata->task = NULL;
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}
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free(scsi_cbdata);
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}
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static void
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iscsi_scsi_response_cb(struct iscsi_context *iscsi, int status,
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void *command_data _U_, void *private_data)
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{
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struct iscsi_scsi_cbdata *scsi_cbdata =
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(struct iscsi_scsi_cbdata *)private_data;
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switch (status) {
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case SCSI_STATUS_RESERVATION_CONFLICT:
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case SCSI_STATUS_CHECK_CONDITION:
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case SCSI_STATUS_GOOD:
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case SCSI_STATUS_ERROR:
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case SCSI_STATUS_CANCELLED:
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scsi_cbdata->callback(iscsi, status, scsi_cbdata->task,
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scsi_cbdata->private_data);
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return;
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default:
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iscsi_set_error(iscsi, "Cant handle scsi status %d yet.",
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status);
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scsi_cbdata->callback(iscsi, SCSI_STATUS_ERROR, scsi_cbdata->task,
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scsi_cbdata->private_data);
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}
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}
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static int
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iscsi_send_data_out(struct iscsi_context *iscsi, struct iscsi_pdu *cmd_pdu,
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uint32_t ttt, uint32_t offset, uint32_t tot_len)
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{
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while (tot_len > 0) {
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uint32_t len = tot_len;
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struct iscsi_pdu *pdu;
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int flags;
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if (len > iscsi->target_max_recv_data_segment_length) {
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len = iscsi->target_max_recv_data_segment_length;
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}
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pdu = iscsi_allocate_pdu_with_itt_flags(iscsi, ISCSI_PDU_DATA_OUT,
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ISCSI_PDU_NO_PDU,
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cmd_pdu->itt,
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ISCSI_PDU_DELETE_WHEN_SENT|ISCSI_PDU_NO_CALLBACK);
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if (pdu == NULL) {
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iscsi_set_error(iscsi, "Out-of-memory, Failed to allocate "
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"scsi data out pdu.");
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SLIST_REMOVE(&iscsi->outqueue, cmd_pdu);
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SLIST_REMOVE(&iscsi->waitpdu, cmd_pdu);
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cmd_pdu->callback(iscsi, SCSI_STATUS_ERROR, NULL,
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cmd_pdu->private_data);
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iscsi_free_pdu(iscsi, cmd_pdu);
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return -1;
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}
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if (tot_len == len) {
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flags = ISCSI_PDU_SCSI_FINAL;
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} else {
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flags = 0;
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}
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/* flags */
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iscsi_pdu_set_pduflags(pdu, flags);
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/* lun */
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iscsi_pdu_set_lun(pdu, cmd_pdu->lun);
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/* ttt */
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iscsi_pdu_set_ttt(pdu, ttt);
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/* exp statsn */
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iscsi_pdu_set_expstatsn(pdu, iscsi->statsn+1);
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/* data sn */
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iscsi_pdu_set_datasn(pdu, cmd_pdu->datasn++);
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/* buffer offset */
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iscsi_pdu_set_bufferoffset(pdu, offset);
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if (iscsi_pdu_add_data(iscsi, pdu, cmd_pdu->nidata.data + offset, len)
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!= 0) {
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iscsi_set_error(iscsi, "Out-of-memory: Failed to "
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"add outdata to the pdu.");
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SLIST_REMOVE(&iscsi->outqueue, cmd_pdu);
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SLIST_REMOVE(&iscsi->waitpdu, cmd_pdu);
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cmd_pdu->callback(iscsi, SCSI_STATUS_ERROR, NULL,
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cmd_pdu->private_data);
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iscsi_free_pdu(iscsi, cmd_pdu);
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iscsi_free_pdu(iscsi, pdu);
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return -1;
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}
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pdu->callback = cmd_pdu->callback;
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pdu->private_data = cmd_pdu->private_data;;
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if (iscsi_queue_pdu(iscsi, pdu) != 0) {
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iscsi_set_error(iscsi, "Out-of-memory: failed to queue iscsi "
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"scsi pdu.");
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SLIST_REMOVE(&iscsi->outqueue, cmd_pdu);
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SLIST_REMOVE(&iscsi->waitpdu, cmd_pdu);
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cmd_pdu->callback(iscsi, SCSI_STATUS_ERROR, NULL,
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cmd_pdu->private_data);
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iscsi_free_pdu(iscsi, cmd_pdu);
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iscsi_free_pdu(iscsi, pdu);
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return -1;
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}
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tot_len -= len;
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offset += len;
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}
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return 0;
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}
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int
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iscsi_scsi_command_async(struct iscsi_context *iscsi, int lun,
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struct scsi_task *task, iscsi_command_cb cb,
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struct iscsi_data *d, void *private_data)
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{
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struct iscsi_pdu *pdu;
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struct iscsi_scsi_cbdata *scsi_cbdata;
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struct iscsi_data data;
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uint32_t offset = 0;
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int flags;
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data.data = (d != NULL) ? d->data : NULL;
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data.size = (d != NULL) ? d->size : 0;
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if (iscsi->session_type != ISCSI_SESSION_NORMAL) {
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iscsi_set_error(iscsi, "Trying to send command on "
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"discovery session.");
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return -1;
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}
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if (iscsi->is_loggedin == 0) {
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iscsi_set_error(iscsi, "Trying to send command while "
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"not logged in.");
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return -1;
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}
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scsi_cbdata = malloc(sizeof(struct iscsi_scsi_cbdata));
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if (scsi_cbdata == NULL) {
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iscsi_set_error(iscsi, "Out-of-memory: failed to allocate "
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"scsi cbdata.");
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return -1;
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}
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memset(scsi_cbdata, 0, sizeof(struct iscsi_scsi_cbdata));
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scsi_cbdata->task = task;
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scsi_cbdata->callback = cb;
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scsi_cbdata->private_data = private_data;
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scsi_set_task_private_ptr(task, scsi_cbdata);
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pdu = iscsi_allocate_pdu(iscsi, ISCSI_PDU_SCSI_REQUEST,
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ISCSI_PDU_SCSI_RESPONSE);
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if (pdu == NULL) {
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iscsi_set_error(iscsi, "Out-of-memory, Failed to allocate "
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"scsi pdu.");
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iscsi_free_scsi_cbdata(scsi_cbdata);
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return -1;
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}
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pdu->scsi_cbdata = scsi_cbdata;
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/* flags */
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flags = ISCSI_PDU_SCSI_FINAL|ISCSI_PDU_SCSI_ATTR_SIMPLE;
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switch (task->xfer_dir) {
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case SCSI_XFER_NONE:
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break;
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case SCSI_XFER_READ:
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flags |= ISCSI_PDU_SCSI_READ;
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break;
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case SCSI_XFER_WRITE:
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flags |= ISCSI_PDU_SCSI_WRITE;
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if (data.size == 0) {
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iscsi_set_error(iscsi, "DATA-OUT command but data "
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"== NULL.");
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iscsi_free_pdu(iscsi, pdu);
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return -1;
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}
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if (data.size != task->expxferlen) {
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iscsi_set_error(iscsi, "Data size:%d is not same as "
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"expected data transfer "
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"length:%d.", data.size,
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task->expxferlen);
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iscsi_free_pdu(iscsi, pdu);
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return -1;
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}
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/* Assume all data is non-immediate data */
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pdu->nidata.data = data.data;
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pdu->nidata.size = data.size;
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/* Are we allowed to send immediate data ? */
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if (iscsi->use_immediate_data == ISCSI_IMMEDIATE_DATA_YES) {
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uint32_t len = data.size;
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if (len > iscsi->first_burst_length) {
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len = iscsi->first_burst_length;
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}
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if (iscsi_pdu_add_data(iscsi, pdu, data.data, len)
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!= 0) {
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iscsi_set_error(iscsi, "Out-of-memory: Failed to "
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"add outdata to the pdu.");
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iscsi_free_pdu(iscsi, pdu);
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return -1;
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}
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offset = len;
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if (len == (uint32_t)data.size) {
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/* We managed to send it all as immediate data, so there is no non-immediate data left */
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pdu->nidata.data = NULL;
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pdu->nidata.size = 0;
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}
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}
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if (pdu->nidata.size > 0 && iscsi->use_initial_r2t == ISCSI_INITIAL_R2T_NO) {
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/* We have more data to send, and we are allowed to send
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* unsolicited data, so dont flag this PDU as final.
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*/
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flags &= ~ISCSI_PDU_SCSI_FINAL;
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}
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break;
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}
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iscsi_pdu_set_pduflags(pdu, flags);
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/* lun */
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iscsi_pdu_set_lun(pdu, lun);
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pdu->lun = lun;
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/* expxferlen */
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iscsi_pdu_set_expxferlen(pdu, task->expxferlen);
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/* cmdsn */
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iscsi_pdu_set_cmdsn(pdu, iscsi->cmdsn);
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pdu->cmdsn = iscsi->cmdsn;
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iscsi->cmdsn++;
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/* exp statsn */
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iscsi_pdu_set_expstatsn(pdu, iscsi->statsn+1);
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/* cdb */
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iscsi_pdu_set_cdb(pdu, task);
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pdu->callback = iscsi_scsi_response_cb;
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pdu->private_data = scsi_cbdata;
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if (iscsi_queue_pdu(iscsi, pdu) != 0) {
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iscsi_set_error(iscsi, "Out-of-memory: failed to queue iscsi "
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"scsi pdu.");
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iscsi_free_pdu(iscsi, pdu);
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return -1;
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}
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/* Can we send some unsolicited data ? */
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if (pdu->nidata.size != 0 && iscsi->use_initial_r2t == ISCSI_INITIAL_R2T_NO && iscsi->use_immediate_data == ISCSI_IMMEDIATE_DATA_NO) {
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uint32_t len = pdu->nidata.size - offset;
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if (len > iscsi->first_burst_length) {
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len = iscsi->first_burst_length;
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}
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iscsi_send_data_out(iscsi, pdu, 0xffffffff, offset, len);
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}
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/* remember cmdsn and itt so we can use task management */
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task->cmdsn = pdu->cmdsn;
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task->itt = pdu->itt;
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task->lun = lun;
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return 0;
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}
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int
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iscsi_process_scsi_reply(struct iscsi_context *iscsi, struct iscsi_pdu *pdu,
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struct iscsi_in_pdu *in)
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{
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uint32_t statsn, maxcmdsn, flags, status;
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struct iscsi_scsi_cbdata *scsi_cbdata = pdu->scsi_cbdata;
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struct scsi_task *task = scsi_cbdata->task;
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statsn = ntohl(*(uint32_t *)&in->hdr[24]);
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if (statsn > iscsi->statsn) {
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iscsi->statsn = statsn;
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}
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maxcmdsn = ntohl(*(uint32_t *)&in->hdr[32]);
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if (maxcmdsn > iscsi->maxcmdsn) {
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iscsi->maxcmdsn = maxcmdsn;
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}
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flags = in->hdr[1];
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if ((flags&ISCSI_PDU_DATA_FINAL) == 0) {
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iscsi_set_error(iscsi, "scsi response pdu but Final bit is "
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"not set: 0x%02x.", flags);
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pdu->callback(iscsi, SCSI_STATUS_ERROR, task,
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pdu->private_data);
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return -1;
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}
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if ((flags&ISCSI_PDU_DATA_ACK_REQUESTED) != 0) {
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iscsi_set_error(iscsi, "scsi response asked for ACK "
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"0x%02x.", flags);
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pdu->callback(iscsi, SCSI_STATUS_ERROR, task,
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pdu->private_data);
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return -1;
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}
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status = in->hdr[3];
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switch (status) {
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case SCSI_STATUS_GOOD:
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task->datain.data = pdu->indata.data;
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task->datain.size = pdu->indata.size;
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task->residual_status = SCSI_RESIDUAL_NO_RESIDUAL;
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task->residual = 0;
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/*
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* These flags should only be set if the S flag is also set
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*/
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if (flags & (ISCSI_PDU_DATA_RESIDUAL_OVERFLOW|ISCSI_PDU_DATA_RESIDUAL_UNDERFLOW)) {
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task->residual = ntohl(*((uint32_t *)&in->hdr[44]));
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if (flags & ISCSI_PDU_DATA_RESIDUAL_UNDERFLOW) {
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task->residual_status = SCSI_RESIDUAL_UNDERFLOW;
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} else {
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task->residual_status = SCSI_RESIDUAL_OVERFLOW;
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}
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}
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pdu->indata.data = NULL;
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pdu->indata.size = 0;
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pdu->callback(iscsi, SCSI_STATUS_GOOD, task,
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pdu->private_data);
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break;
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case SCSI_STATUS_CHECK_CONDITION:
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task->datain.size = in->data_pos;
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task->datain.data = malloc(task->datain.size);
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if (task->datain.data == NULL) {
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iscsi_set_error(iscsi, "failed to allocate blob for "
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"sense data");
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}
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memcpy(task->datain.data, in->data, task->datain.size);
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task->sense.error_type = task->datain.data[2] & 0x7f;
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task->sense.key = task->datain.data[4] & 0x0f;
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task->sense.ascq = ntohs(*(uint16_t *)
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&(task->datain.data[14]));
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iscsi_set_error(iscsi, "SENSE KEY:%s(%d) ASCQ:%s(0x%04x)",
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scsi_sense_key_str(task->sense.key),
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task->sense.key,
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scsi_sense_ascq_str(task->sense.ascq),
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task->sense.ascq);
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pdu->callback(iscsi, SCSI_STATUS_CHECK_CONDITION, task,
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pdu->private_data);
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break;
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case SCSI_STATUS_RESERVATION_CONFLICT:
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iscsi_set_error(iscsi, "RESERVATION CONFLICT");
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pdu->callback(iscsi, SCSI_STATUS_RESERVATION_CONFLICT,
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task, pdu->private_data);
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break;
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default:
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iscsi_set_error(iscsi, "Unknown SCSI status :%d.", status);
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pdu->callback(iscsi, SCSI_STATUS_ERROR, task,
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pdu->private_data);
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return -1;
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}
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return 0;
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}
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|
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int
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iscsi_process_scsi_data_in(struct iscsi_context *iscsi, struct iscsi_pdu *pdu,
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struct iscsi_in_pdu *in, int *is_finished)
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{
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uint32_t statsn, maxcmdsn, flags, status;
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struct iscsi_scsi_cbdata *scsi_cbdata = pdu->scsi_cbdata;
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struct scsi_task *task = scsi_cbdata->task;
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int dsl;
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statsn = ntohl(*(uint32_t *)&in->hdr[24]);
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if (statsn > iscsi->statsn) {
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iscsi->statsn = statsn;
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}
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maxcmdsn = ntohl(*(uint32_t *)&in->hdr[32]);
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if (maxcmdsn > iscsi->maxcmdsn) {
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iscsi->maxcmdsn = maxcmdsn;
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}
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flags = in->hdr[1];
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if ((flags&ISCSI_PDU_DATA_ACK_REQUESTED) != 0) {
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iscsi_set_error(iscsi, "scsi response asked for ACK "
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"0x%02x.", flags);
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pdu->callback(iscsi, SCSI_STATUS_ERROR, task,
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pdu->private_data);
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return -1;
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}
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dsl = ntohl(*(uint32_t *)&in->hdr[4])&0x00ffffff;
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/* Dont add to reassembly buffer if we already have a user buffer */
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if (scsi_task_get_data_in_buffer(task, 0, NULL) == NULL) {
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if (iscsi_add_data(iscsi, &pdu->indata,
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in->data, dsl, 0)
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!= 0) {
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iscsi_set_error(iscsi, "Out-of-memory: failed to add data "
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"to pdu in buffer.");
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return -1;
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}
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}
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if ((flags&ISCSI_PDU_DATA_FINAL) == 0) {
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*is_finished = 0;
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}
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if ((flags&ISCSI_PDU_DATA_CONTAINS_STATUS) == 0) {
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*is_finished = 0;
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}
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if (*is_finished == 0) {
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return 0;
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}
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|
|
|
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 = ntohl(*((uint32_t *)&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;
|
|
|
|
pdu->indata.data = NULL;
|
|
pdu->indata.size = 0;
|
|
|
|
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, maxcmdsn;
|
|
|
|
ttt = ntohl(*(uint32_t *)&in->hdr[20]);
|
|
offset = ntohl(*(uint32_t *)&in->hdr[40]);
|
|
len = ntohl(*(uint32_t *)&in->hdr[44]);
|
|
|
|
maxcmdsn = ntohl(*(uint32_t *)&in->hdr[32]);
|
|
if (maxcmdsn > iscsi->maxcmdsn) {
|
|
iscsi->maxcmdsn = maxcmdsn;
|
|
}
|
|
|
|
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_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_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_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_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_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 outdata;
|
|
|
|
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;
|
|
}
|
|
|
|
outdata.data = data;
|
|
outdata.size = datalen;
|
|
|
|
if (iscsi_scsi_command_async(iscsi, lun, task, cb, &outdata,
|
|
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 outdata;
|
|
|
|
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;
|
|
}
|
|
|
|
outdata.data = data;
|
|
outdata.size = datalen;
|
|
|
|
if (iscsi_scsi_command_async(iscsi, lun, task, cb, &outdata,
|
|
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 outdata;
|
|
|
|
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;
|
|
}
|
|
|
|
outdata.data = data;
|
|
outdata.size = datalen;
|
|
|
|
if (iscsi_scsi_command_async(iscsi, lun, task, cb, &outdata,
|
|
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 outdata;
|
|
|
|
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;
|
|
}
|
|
|
|
outdata.data = data;
|
|
outdata.size = datalen;
|
|
|
|
if (iscsi_scsi_command_async(iscsi, lun, task, cb, &outdata,
|
|
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 outdata;
|
|
|
|
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_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;
|
|
}
|
|
|
|
outdata.data = data;
|
|
outdata.size = datalen;
|
|
|
|
if (iscsi_scsi_command_async(iscsi, lun, task, cb, &outdata,
|
|
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 outdata;
|
|
|
|
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;
|
|
}
|
|
|
|
outdata.data = data;
|
|
outdata.size = datalen;
|
|
|
|
if (iscsi_scsi_command_async(iscsi, lun, task, cb, &outdata,
|
|
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 outdata;
|
|
|
|
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;
|
|
}
|
|
|
|
outdata.data = data;
|
|
outdata.size = datalen;
|
|
|
|
if (iscsi_scsi_command_async(iscsi, lun, task, cb, &outdata,
|
|
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 outdata;
|
|
|
|
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;
|
|
}
|
|
|
|
outdata.data = data;
|
|
outdata.size = datalen;
|
|
|
|
if (iscsi_scsi_command_async(iscsi, lun, task, cb, &outdata,
|
|
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 outdata;
|
|
|
|
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;
|
|
}
|
|
|
|
outdata.data = data;
|
|
outdata.size = datalen;
|
|
|
|
if (iscsi_scsi_command_async(iscsi, lun, task, cb, &outdata,
|
|
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 outdata;
|
|
|
|
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;
|
|
}
|
|
|
|
outdata.data = data;
|
|
outdata.size = datalen;
|
|
|
|
if (iscsi_scsi_command_async(iscsi, lun, task, cb, &outdata,
|
|
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 outdata;
|
|
|
|
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;
|
|
}
|
|
|
|
outdata.data = data;
|
|
outdata.size = datalen;
|
|
|
|
if (iscsi_scsi_command_async(iscsi, lun, task, cb, &outdata,
|
|
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_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_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,
|
|
unsigned char *data, uint32_t datalen,
|
|
uint32_t lba, uint16_t num_blocks,
|
|
int anchor, int unmap, int pbdata, int lbdata,
|
|
int wrprotect, int group,
|
|
iscsi_command_cb cb, void *private_data)
|
|
{
|
|
struct scsi_task *task;
|
|
struct iscsi_data outdata;
|
|
|
|
task = scsi_cdb_writesame10(wrprotect, anchor, unmap, pbdata, lbdata, lba, group, num_blocks);
|
|
if (task == NULL) {
|
|
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
|
|
"writesame10 cdb.");
|
|
return NULL;
|
|
}
|
|
|
|
if (datalen) {
|
|
outdata.data = data;
|
|
outdata.size = datalen;
|
|
task->expxferlen = datalen;
|
|
|
|
if (iscsi_scsi_command_async(iscsi, lun, task, cb, &outdata,
|
|
private_data) != 0) {
|
|
scsi_free_scsi_task(task);
|
|
return NULL;
|
|
}
|
|
} else {
|
|
task->expxferlen = 0;
|
|
task->xfer_dir = SCSI_XFER_NONE;
|
|
|
|
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_writesame16_task(struct iscsi_context *iscsi, int lun,
|
|
unsigned char *data, uint32_t datalen,
|
|
uint64_t lba, uint32_t num_blocks,
|
|
int anchor, int unmap, int pbdata, int lbdata,
|
|
int wrprotect, int group,
|
|
iscsi_command_cb cb, void *private_data)
|
|
{
|
|
struct scsi_task *task;
|
|
struct iscsi_data outdata;
|
|
|
|
task = scsi_cdb_writesame16(wrprotect, anchor, unmap, pbdata, lbdata, lba, group, num_blocks);
|
|
if (task == NULL) {
|
|
iscsi_set_error(iscsi, "Out-of-memory: Failed to create "
|
|
"writesame16 cdb.");
|
|
return NULL;
|
|
}
|
|
|
|
if (datalen) {
|
|
outdata.data = data;
|
|
outdata.size = datalen;
|
|
task->expxferlen = datalen;
|
|
|
|
if (iscsi_scsi_command_async(iscsi, lun, task, cb, &outdata,
|
|
private_data) != 0) {
|
|
scsi_free_scsi_task(task);
|
|
return NULL;
|
|
}
|
|
} else {
|
|
task->expxferlen = 0;
|
|
task->xfer_dir = SCSI_XFER_NONE;
|
|
|
|
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_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 iscsi_data outdata;
|
|
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;
|
|
}
|
|
*((uint16_t *)&data[0]) = htons(xferlen - 2);
|
|
*((uint16_t *)&data[2]) = htons(xferlen - 8);
|
|
for (i = 0; i < list_len; i++) {
|
|
*((uint32_t *)&data[8 + 16 * i]) = htonl(list[0].lba >> 32);
|
|
*((uint32_t *)&data[8 + 16 * i + 4]) = htonl(list[0].lba & 0xffffffff);
|
|
*((uint32_t *)&data[8 + 16 * i + 8]) = htonl(list[0].num);
|
|
}
|
|
|
|
outdata.data = data;
|
|
outdata.size = xferlen;
|
|
|
|
if (iscsi_scsi_command_async(iscsi, lun, task, cb, &outdata,
|
|
private_data) != 0) {
|
|
scsi_free_scsi_task(task);
|
|
return NULL;
|
|
}
|
|
|
|
return task;
|
|
}
|
|
|
|
unsigned char *
|
|
iscsi_get_user_in_buffer(struct iscsi_context *iscsi, struct iscsi_in_pdu *in, uint32_t pos, ssize_t *count)
|
|
{
|
|
struct iscsi_pdu *pdu;
|
|
uint32_t offset;
|
|
uint32_t itt;
|
|
|
|
if ((in->hdr[0] & 0x3f) != ISCSI_PDU_DATA_IN) {
|
|
return NULL;
|
|
}
|
|
|
|
offset = ntohl(*(uint32_t *)&in->hdr[40]);
|
|
|
|
itt = ntohl(*(uint32_t *)&in->hdr[16]);
|
|
for (pdu = iscsi->waitpdu; pdu; pdu = pdu->next) {
|
|
if (pdu->itt == itt) {
|
|
break;
|
|
}
|
|
}
|
|
if (pdu == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
return scsi_task_get_data_in_buffer(pdu->scsi_cbdata->task, offset + pos, count);
|
|
}
|
|
|
|
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_scsi_get_task_from_pdu(struct iscsi_pdu *pdu)
|
|
{
|
|
return pdu->scsi_cbdata->task;
|
|
}
|