163 lines
3.8 KiB
C
163 lines
3.8 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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#ifdef HAVE_ARPA_INET_H
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#include <arpa/inet.h>
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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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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#include "scsi-lowlevel.h"
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int
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iscsi_task_mgmt_async(struct iscsi_context *iscsi,
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int lun, enum iscsi_task_mgmt_funcs 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 to send task-mgmt while not "
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"logged in");
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return -1;
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}
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pdu = iscsi_allocate_pdu(iscsi,
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ISCSI_PDU_SCSI_TASK_MANAGEMENT_REQUEST,
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ISCSI_PDU_SCSI_TASK_MANAGEMENT_RESPONSE,
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iscsi_itt_post_increment(iscsi),
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ISCSI_PDU_DROP_ON_RECONNECT);
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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, lun);
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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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/* 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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iscsi_queue_pdu(iscsi, pdu);
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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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uint32_t response = in->hdr[2];
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if (pdu->callback) {
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pdu->callback(iscsi, SCSI_STATUS_GOOD, &response, pdu->private_data);
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}
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return 0;
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}
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int
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iscsi_task_mgmt_abort_task_async(struct iscsi_context *iscsi,
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struct scsi_task *task,
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iscsi_command_cb cb, void *private_data)
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{
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return iscsi_task_mgmt_async(iscsi,
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task->lun, ISCSI_TM_ABORT_TASK,
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task->itt, task->cmdsn,
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cb, private_data);
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}
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int
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iscsi_task_mgmt_abort_task_set_async(struct iscsi_context *iscsi,
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uint32_t lun,
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iscsi_command_cb cb, void *private_data)
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{
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iscsi_scsi_cancel_all_tasks(iscsi);
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return iscsi_task_mgmt_async(iscsi,
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lun, ISCSI_TM_ABORT_TASK_SET,
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0xffffffff, 0,
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cb, private_data);
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}
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int
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iscsi_task_mgmt_lun_reset_async(struct iscsi_context *iscsi,
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uint32_t lun,
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iscsi_command_cb cb, void *private_data)
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{
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iscsi_cancel_lun_pdus(iscsi, lun);
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return iscsi_task_mgmt_async(iscsi,
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lun, ISCSI_TM_LUN_RESET,
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0xffffffff, 0,
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cb, private_data);
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}
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int
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iscsi_task_mgmt_target_warm_reset_async(struct iscsi_context *iscsi,
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iscsi_command_cb cb, void *private_data)
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{
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iscsi_scsi_cancel_all_tasks(iscsi);
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return iscsi_task_mgmt_async(iscsi,
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0, ISCSI_TM_TARGET_WARM_RESET,
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0xffffffff, 0,
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cb, private_data);
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}
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int
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iscsi_task_mgmt_target_cold_reset_async(struct iscsi_context *iscsi,
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iscsi_command_cb cb, void *private_data)
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{
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iscsi_scsi_cancel_all_tasks(iscsi);
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return iscsi_task_mgmt_async(iscsi,
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0, ISCSI_TM_TARGET_COLD_RESET,
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0xffffffff, 0,
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cb, private_data);
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}
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