92 lines
2.3 KiB
C
92 lines
2.3 KiB
C
/*
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Copyright (C) 2011 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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#include <stdio.h>
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#include "iscsi.h"
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#include "iscsi-private.h"
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int
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iscsi_task_mgmt_async(struct iscsi_context *iscsi,
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int lun, uint8_t function,
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uint32_t ritt, uint32_t rcmdsn,
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iscsi_command_cb cb, void *private_data)
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{
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struct iscsi_pdu *pdu;
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if (iscsi->is_loggedin == 0) {
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iscsi_set_error(iscsi, "trying send nop-out while not logged "
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"in");
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return -1;
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}
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pdu = iscsi_allocate_pdu(iscsi, ISCSI_PDU_SCSI_TASK_MANAGEMENT_REQUEST,
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ISCSI_PDU_SCSI_TASK_MANAGEMENT_RESPONSE);
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if (pdu == NULL) {
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iscsi_set_error(iscsi, "Failed to allocate task mgmt pdu");
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return -1;
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}
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/* immediate flag */
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iscsi_pdu_set_immediate(pdu);
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/* flags */
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iscsi_pdu_set_pduflags(pdu, 0x80 | function);
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/* lun */
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iscsi_pdu_set_lun(pdu, 2);
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/* ritt */
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iscsi_pdu_set_ritt(pdu, ritt);
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/* cmdsn is not increased if Immediate delivery*/
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iscsi_pdu_set_cmdsn(pdu, iscsi->cmdsn);
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pdu->cmdsn = iscsi->cmdsn;
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/* rcmdsn */
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iscsi_pdu_set_rcmdsn(pdu, rcmdsn);
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pdu->callback = cb;
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pdu->private_data = private_data;
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if (iscsi_queue_pdu(iscsi, pdu) != 0) {
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iscsi_set_error(iscsi, "failed to queue iscsi taskmgmt pdu");
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iscsi_free_pdu(iscsi, pdu);
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return -1;
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}
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return 0;
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}
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int
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iscsi_process_task_mgmt_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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struct iscsi_data data;
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data.data = NULL;
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data.size = 0;
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if (in->data_pos > ISCSI_HEADER_SIZE) {
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data.data = in->data;
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data.size = in->data_pos;
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}
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pdu->callback(iscsi, SCSI_STATUS_GOOD, &data, pdu->private_data);
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return 0;
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}
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