/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#include <string.h>
#include <syslog.h>
#include <errno.h>
#include <unistd.h>
#include <stropts.h>

#include "mp_utils.h"


MP_STATUS
MP_GetPathLogicalUnitProperties(MP_OID oid,
        MP_PATH_LOGICAL_UNIT_PROPERTIES *pProps)
{
        mp_iocdata_t    mp_ioctl;
        mp_path_prop_t  pathInfo;

        int ioctlStatus = 0;

        MP_OID initPortOID;
        MP_OID targetPortOID;
        MP_OID luOID;

        MP_STATUS mpStatus = MP_STATUS_SUCCESS;



        log(LOG_INFO, "MP_GetPathLogicalUnitProperties()", " - enter");


        log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
                "oid.objectSequenceNumber = %llx",
                oid.objectSequenceNumber);


        if (g_scsi_vhci_fd < 0) {
                log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
                    "invalid driver file handle");
                log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
                        " - error exit");
                return (MP_STATUS_FAILED);
        }

        (void) memset(&mp_ioctl, 0, sizeof (mp_iocdata_t));
        (void) memset(&pathInfo, 0, sizeof (mp_path_prop_t));

        mp_ioctl.mp_cmd  = MP_GET_PATH_PROP;
        mp_ioctl.mp_ibuf = (caddr_t)&oid.objectSequenceNumber;
        mp_ioctl.mp_ilen = sizeof (oid.objectSequenceNumber);
        mp_ioctl.mp_obuf = (caddr_t)&pathInfo;
        mp_ioctl.mp_olen = sizeof (mp_path_prop_t);
        mp_ioctl.mp_xfer = MP_XFER_READ;

        ioctlStatus = ioctl(g_scsi_vhci_fd, MP_CMD, &mp_ioctl);

        log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
                " IOCTL call returned: %d", ioctlStatus);

        if (ioctlStatus < 0) {
                ioctlStatus = errno;
        }

        if (ioctlStatus != 0) {
                log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
                    "IOCTL call failed.  IOCTL error is: %d",
                        ioctlStatus);
                log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
                    "IOCTL call failed.  IOCTL error is: %s",
                        strerror(ioctlStatus));
                log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
                    "IOCTL call failed.  mp_ioctl.mp_errno: %x",
                        mp_ioctl.mp_errno);

                if (ENOTSUP == ioctlStatus) {
                        mpStatus = MP_STATUS_UNSUPPORTED;
                } else if (0 == mp_ioctl.mp_errno) {
                        mpStatus = MP_STATUS_FAILED;
                } else {
                        mpStatus = getStatus4ErrorCode(mp_ioctl.mp_errno);
                }

                log(LOG_INFO, "MP_GetPathLogicalUnitProperties()",
                        " - error exit");

                return (mpStatus);
        }

        (void) memset(pProps, 0, sizeof (MP_PATH_LOGICAL_UNIT_PROPERTIES));

        pProps->disabled = pathInfo.disabled;

        initPortOID.objectSequenceNumber = pathInfo.initPort.id;
        initPortOID.objectType = MP_OBJECT_TYPE_INITIATOR_PORT;
        initPortOID.ownerId = g_pluginOwnerID;

        (void) memcpy(&pProps->initiatorPortOid, &initPortOID, sizeof (MP_OID));

        targetPortOID.objectSequenceNumber = pathInfo.targetPort.id;
        targetPortOID.objectType = MP_OBJECT_TYPE_TARGET_PORT;
        targetPortOID.ownerId = g_pluginOwnerID;

        (void) memcpy(&pProps->targetPortOid, &targetPortOID, sizeof (MP_OID));

        luOID.objectSequenceNumber = pathInfo.logicalUnit.id;
        luOID.objectType = MP_OBJECT_TYPE_MULTIPATH_LU;
        luOID.ownerId = g_pluginOwnerID;

        (void) memcpy(&pProps->logicalUnitOid, &luOID, sizeof (MP_OID));

        pProps->logicalUnitNumber = pathInfo.logicalUnit.id;

        switch (pathInfo.pathState) {

                case MP_DRVR_PATH_STATE_ACTIVE:
                case MP_DRVR_PATH_STATE_PASSIVE:
                        pProps->pathState = MP_PATH_STATE_OKAY;
                        break;

                case MP_DRVR_PATH_STATE_PATH_ERR:
                        pProps->pathState = MP_PATH_STATE_PATH_ERR;
                        break;

                case MP_DRVR_PATH_STATE_LU_ERR:
                        pProps->pathState = MP_PATH_STATE_LU_ERR;
                        break;

                case MP_DRVR_PATH_STATE_RESERVED:
                        pProps->pathState = MP_PATH_STATE_RESERVED;
                        break;

                case MP_DRVR_PATH_STATE_REMOVED:
                        pProps->pathState = MP_PATH_STATE_REMOVED;
                        break;

                case MP_DRVR_PATH_STATE_TRANSITIONING:
                        pProps->pathState = MP_PATH_STATE_TRANSITIONING;
                        break;

                default:
                        pProps->pathState = MP_PATH_STATE_UNKNOWN;

        }

        pProps->weight = pathInfo.weight;


        log(LOG_INFO, "MP_GetPathLogicalUnitProperties()", " - exit");

        return (MP_STATUS_SUCCESS);
}