libsun_ima/common/ima.c

	ima.c revision fcf3ce441efd61da9bb2884968af01cb7c1452cc
/*
 * 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 <arpa/inet.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <unistd.h>
#include <syslog.h>
#include <errno.h>
#include <wchar.h>
#include <widec.h>
#include <libsysevent.h>
#include <sys/nvpair.h>
#include <fcntl.h>
#include <stdio.h>
#include <time.h>
#include <libdevinfo.h>
#include <sys/scsi/adapters/iscsi_if.h>
#include <sys/scsi/adapters/iscsi_protocol.h>
#include <ima.h>

#define LIBRARY_PROPERTY_IMPLEMENTATION_VERSION L"1.0.0"
#define LIBRARY_PROPERTY_VENDOR         L"Sun Microsystems, Inc."
#define OS_DEVICE_NAME              "/devices/iscsi"
#define LIBRARY_FILE_NAME           L"libsun_ima.so"

#define OS_DEVICE_NAME_LEN      256
#define INQUIRY_CMD         0x12
#define GETCAPACITY_CMD         0x25
#define INQUIRY_CMDLEN          6
#define INQUIRY_REPLY_LEN       96
#define USCSI_TIMEOUT_IN_SEC        10
#define MAX_AUTHMETHODS         10
#define NUM_SUPPORTED_AUTH_METHODS  2
#define SUN_IMA_MAX_DIGEST_ALGORITHMS   2   /* NONE and CRC 32 */
#define SUN_IMA_IP_ADDRESS_LEN      256
#define SUN_IMA_IP_PORT_LEN     64
#define SUN_IMA_MAX_RADIUS_SECRET_LEN   128

/* Forward declaration */
#define BOOL_PARAM          1
#define MIN_MAX_PARAM           2

/* OK */
#define DISC_ADDR_OK            0
/* Incorrect IP address */
#define DISC_ADDR_INTEGRITY_ERROR       1
/* Error converting text IP address to numeric binary form */
#define DISC_ADDR_IP_CONV_ERROR     2

/* Currently not defined in  IMA_TARGET_DISCOVERY_METHOD enum */
#define IMA_TARGET_DISCOVERY_METHOD_UNKNOWN  0

static IMA_OID      lhbaObjectId;
static IMA_UINT32   pluginOwnerId;
static sysevent_handle_t *shp;


/*
 * Custom struct to allow tgpt to be specified.
 */
typedef struct _SUN_IMA_DISC_ADDRESS_KEY
{
    IMA_NODE_NAME name;
    IMA_ADDRESS_KEY address;
    IMA_UINT16 tpgt;
} SUN_IMA_DISC_ADDRESS_KEY;

/*
 * Custom struct to allow tgpt to be specified.
 */
typedef struct _SUN_IMA_DISC_ADDRESS_KEY_PROPERTIES
{
    IMA_UINT keyCount;
    SUN_IMA_DISC_ADDRESS_KEY keys[1];
} SUN_IMA_DISC_ADDRESS_KEY_PROPERTIES;

/*
 * Custom struct to allow tgpt to be specified.
 */
typedef struct _SUN_IMA_DISC_ADDR_PROP_LIST
{
    IMA_UINT discAddrCount;
    IMA_DISCOVERY_ADDRESS_PROPERTIES props[1];
} SUN_IMA_DISC_ADDR_PROP_LIST;


static IMA_OBJECT_VISIBILITY_FN pObjectVisibilityCallback = NULL;
static IMA_OBJECT_PROPERTY_FN pObjectPropertyCallback = NULL;

static IMA_STATUS getISCSINodeParameter(int paramType, IMA_OID *oid,
    void *pProps, uint32_t paramIndex);
static IMA_STATUS setISCSINodeParameter(int paramType, IMA_OID *oid,
    void *pProps, uint32_t paramIndex);
static IMA_STATUS setAuthMethods(IMA_OID oid, IMA_UINT *pMethodCount,
    const IMA_AUTHMETHOD *pMethodList);
static IMA_STATUS getAuthMethods(IMA_OID oid, IMA_UINT *pMethodCount,
    IMA_AUTHMETHOD *pMethodList);

static int prepare_discovery_entry(IMA_TARGET_ADDRESS discoveryAddress,
    entry_t *entry);
static IMA_STATUS configure_discovery_method(IMA_BOOL enable,
    iSCSIDiscoveryMethod_t method);
static IMA_STATUS get_target_oid_list(uint32_t targetListType,
    IMA_OID_LIST **ppList);
static IMA_STATUS get_target_lun_oid_list(IMA_OID * targetOid,
        iscsi_lun_list_t  **ppLunList);
static int get_lun_devlink(di_devlink_t link, void *osDeviceName);
static IMA_STATUS getDiscoveryAddressPropertiesList(
    SUN_IMA_DISC_ADDR_PROP_LIST **ppList
);
static IMA_STATUS sendTargets(IMA_TARGET_ADDRESS address,
    SUN_IMA_DISC_ADDRESS_KEY_PROPERTIES **ppList
);

static IMA_STATUS getSupportedAuthMethods(IMA_OID lhbaOid,
    IMA_BOOL getSettableMethods, IMA_UINT *pMethodCount,
    IMA_AUTHMETHOD *pMethodList);
static IMA_STATUS getLuProperties(IMA_OID luId, IMA_LU_PROPERTIES *pProps);
static IMA_STATUS getTargetProperties(IMA_OID targetId,
    IMA_TARGET_PROPERTIES *pProps);

void InitLibrary();

static void libSwprintf(wchar_t *wcs, const wchar_t *lpszFormat, ...)
{
    va_list args;
    va_start(args, lpszFormat);
    (void) vswprintf(wcs, OS_DEVICE_NAME_LEN - 1, lpszFormat, args);
    va_end(args);
}

static void
sysevent_handler(sysevent_t *ev)
{
    IMA_OID tmpOid;
    IMA_BOOL becomingVisible = IMA_FALSE;
    IMA_UINT i;

    const char *visibility_subclasses[] = {
        ESC_ISCSI_STATIC_START,
        ESC_ISCSI_STATIC_END,
        ESC_ISCSI_SEND_TARGETS_START,
        ESC_ISCSI_SEND_TARGETS_END,
        ESC_ISCSI_SLP_START,
        ESC_ISCSI_SLP_END,
        ESC_ISCSI_ISNS_START,
        ESC_ISCSI_ISNS_END,
        NULL
    };

    tmpOid.ownerId = pluginOwnerId;
    tmpOid.objectType = IMA_OBJECT_TYPE_TARGET;
    tmpOid.objectSequenceNumber = 0;

    /* Make sure our event class matches what we are looking for */
    if (strncmp(EC_ISCSI, sysevent_get_class_name(ev),
        strlen(EC_ISCSI)) != 0) {
        return;
    }


    /* Check for object property changes */
    if ((strncmp(ESC_ISCSI_PROP_CHANGE,
        sysevent_get_subclass_name(ev),
        strlen(ESC_ISCSI_PROP_CHANGE)) == 0)) {
        if (pObjectPropertyCallback != NULL)
            pObjectPropertyCallback(tmpOid);
    } else {
        i = 0;
        while (visibility_subclasses[i] != NULL) {
            if ((strncmp(visibility_subclasses[i],
                sysevent_get_subclass_name(ev),
                strlen(visibility_subclasses[i])) == 0) &&
                pObjectVisibilityCallback != NULL) {
                becomingVisible = IMA_TRUE;
                pObjectVisibilityCallback(becomingVisible,
                    tmpOid);
            }
            i++;
        }
    }
}

IMA_STATUS init_sysevents() {
    const char *subclass_list[] = {
        ESC_ISCSI_STATIC_START,
        ESC_ISCSI_STATIC_END,
        ESC_ISCSI_SEND_TARGETS_START,
        ESC_ISCSI_SEND_TARGETS_END,
        ESC_ISCSI_SLP_START,
        ESC_ISCSI_SLP_END,
        ESC_ISCSI_ISNS_START,
        ESC_ISCSI_ISNS_END,
        ESC_ISCSI_PROP_CHANGE,
    };

    /* Bind event handler and create subscriber handle */
    shp = sysevent_bind_handle(sysevent_handler);
    if (shp == NULL) {
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    if (sysevent_subscribe_event(shp, EC_ISCSI, subclass_list, 9) != 0) {
        sysevent_unbind_handle(shp);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }
    return (IMA_STATUS_SUCCESS);
}

IMA_STATUS Initialize(IMA_UINT32 pluginOid) {
    pluginOwnerId = pluginOid;
    return (init_sysevents());
}

void Terminate() {
    if (shp != NULL) {
        sysevent_unsubscribe_event(shp, EC_ISCSI);
    }

}

void InitLibrary() {
}

static void GetBuildTime(IMA_DATETIME* pdatetime)
{
    (void) memset(pdatetime, 0, sizeof (IMA_DATETIME));
}

/*ARGSUSED*/
IMA_API IMA_STATUS IMA_GetNodeProperties(
    IMA_OID nodeOid,
    IMA_NODE_PROPERTIES *pProps
)
{
    int fd;
    iscsi_param_get_t pg;

    pProps->runningInInitiatorMode = IMA_TRUE;
    pProps->runningInTargetMode = IMA_FALSE;
    pProps->nameAndAliasSettable = IMA_FALSE;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    (void) memset(&pg, 0, sizeof (iscsi_param_get_t));
    pg.g_vers = ISCSI_INTERFACE_VERSION;
    pg.g_param = ISCSI_LOGIN_PARAM_INITIATOR_NAME;

    if (ioctl(fd, ISCSI_PARAM_GET, &pg) == -1) {
        pProps->nameValid = IMA_FALSE;
    } else {
        if (strlen((char *)pg.g_value.v_name) > 0) {
            (void) mbstowcs(pProps->name,
                (char *)pg.g_value.v_name,
                IMA_NODE_NAME_LEN);
            pProps->nameValid = IMA_TRUE;
        } else {
            pProps->nameValid = IMA_FALSE;
        }
    }

    (void) memset(&pg, 0, sizeof (iscsi_param_get_t));
    pg.g_vers = ISCSI_INTERFACE_VERSION;
    pg.g_param = ISCSI_LOGIN_PARAM_INITIATOR_ALIAS;
    (void) memset(pProps->alias, 0,
        sizeof (IMA_WCHAR) * IMA_NODE_ALIAS_LEN);
    if (ioctl(fd, ISCSI_PARAM_GET, &pg) == -1) {
        pProps->aliasValid = IMA_FALSE;
    } else {
        if (strlen((char *)pg.g_value.v_name) > 0) {
            (void) mbstowcs(pProps->alias,
                (char *)pg.g_value.v_name,
                IMA_NODE_ALIAS_LEN);
            pProps->aliasValid = IMA_TRUE;
        }
    }

    (void) close(fd);
    return (IMA_STATUS_SUCCESS);
}

IMA_API IMA_STATUS IMA_SetNodeName(
    IMA_OID nodeOid,
    const IMA_NODE_NAME newName
)
{
    int fd;
    iscsi_param_set_t ps;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    (void) memset(&ps, 0, sizeof (iscsi_param_set_t));
    ps.s_oid = nodeOid.objectSequenceNumber;
    ps.s_vers = ISCSI_INTERFACE_VERSION;
    ps.s_param = ISCSI_LOGIN_PARAM_INITIATOR_NAME;
    (void) wcstombs((char *)ps.s_value.v_name, newName, ISCSI_MAX_NAME_LEN);
    if (ioctl(fd, ISCSI_INIT_NODE_NAME_SET, &ps)) {
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_PARAM_SET ioctl failed, errno: %d", errno);
        (void) close(fd);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    (void) close(fd);
    return (IMA_STATUS_SUCCESS);
}

IMA_API IMA_STATUS IMA_SetNodeAlias(
    IMA_OID nodeOid,
    const IMA_NODE_ALIAS newAlias
)
{
    int fd;
    iscsi_param_set_t ps;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    (void) memset(&ps, 0, sizeof (iscsi_param_set_t));
    ps.s_oid = nodeOid.objectSequenceNumber;
    ps.s_vers = ISCSI_INTERFACE_VERSION;
    ps.s_param = ISCSI_LOGIN_PARAM_INITIATOR_ALIAS;

    /* newAlias = NULL specifies that the alias should be deleted. */
    if (newAlias != NULL)
        (void) wcstombs((char *)ps.s_value.v_name, newAlias,
            ISCSI_MAX_NAME_LEN);
    else
        (void) wcstombs((char *)ps.s_value.v_name,
            L"", ISCSI_MAX_NAME_LEN);

    if (ioctl(fd, ISCSI_PARAM_SET, &ps)) {
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_PARAM_SET ioctl failed, errno: %d", errno);
        (void) close(fd);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    (void) close(fd);
    return (IMA_STATUS_SUCCESS);
}


IMA_API IMA_STATUS IMA_GetLhbaOidList(
    IMA_OID_LIST **ppList
)
{
    /* Always return the same object ID for the lhba */
    lhbaObjectId.objectType = IMA_OBJECT_TYPE_LHBA;
    lhbaObjectId.ownerId = pluginOwnerId;
    lhbaObjectId.objectSequenceNumber = ISCSI_INITIATOR_OID;

    *ppList = (IMA_OID_LIST*)calloc(1, sizeof (IMA_OID_LIST));
    if (*ppList == NULL) {
        return (IMA_ERROR_INSUFFICIENT_MEMORY);
    }

    (*ppList)->oidCount = 1;
    (void) memcpy(&(*ppList)->oids[0],
        &lhbaObjectId, sizeof (lhbaObjectId));
    return (IMA_STATUS_SUCCESS);
}


/*
 * Get the discovery properties of the LHBA
 */
/*ARGSUSED*/
IMA_API IMA_STATUS IMA_GetDiscoveryProperties(
    IMA_OID oid,
    IMA_DISCOVERY_PROPERTIES *pProps
)
{
    int fd;
    iSCSIDiscoveryProperties_t discoveryProps;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    (void) memset(&discoveryProps, 0, sizeof (discoveryProps));
    discoveryProps.vers = ISCSI_INTERFACE_VERSION;

    if (ioctl(fd, ISCSI_DISCOVERY_PROPS, &discoveryProps) != 0) {
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_DISCOVERY_PROPS ioctl failed, errno: %d", errno);
        (void) close(fd);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    pProps->iSnsDiscoverySettable = discoveryProps.iSNSDiscoverySettable;
    pProps->iSnsDiscoveryEnabled = discoveryProps.iSNSDiscoveryEnabled;
    /*
     * Set the iSNS discovery method - The IMA specification indicates
     * this field is valid only if iSNS discovery is enabled.
     */
    if (pProps->iSnsDiscoveryEnabled == IMA_TRUE) {
        switch (discoveryProps.iSNSDiscoveryMethod) {
            case iSNSDiscoveryMethodStatic:
                pProps->iSnsDiscoveryMethod =
                    IMA_ISNS_DISCOVERY_METHOD_STATIC;
                break;
            case iSNSDiscoveryMethodDHCP:
                pProps->iSnsDiscoveryMethod =
                    IMA_ISNS_DISCOVERY_METHOD_DHCP;
                break;
            case iSNSDiscoveryMethodSLP:
                pProps->iSnsDiscoveryMethod =
                    IMA_ISNS_DISCOVERY_METHOD_SLP;
                break;
            default:
                (void) close(fd);
                return (IMA_ERROR_UNEXPECTED_OS_ERROR);
        }
    }
    (void) memcpy(pProps->iSnsHost.id.hostname,
        discoveryProps.iSNSDomainName,
        sizeof (pProps->iSnsHost.id.hostname));
    pProps->slpDiscoverySettable = discoveryProps.SLPDiscoverySettable;
    pProps->slpDiscoveryEnabled = discoveryProps.SLPDiscoveryEnabled;
    pProps->staticDiscoverySettable =
        discoveryProps.StaticDiscoverySettable;
    pProps->staticDiscoveryEnabled = discoveryProps.StaticDiscoveryEnabled;
    pProps->sendTargetsDiscoverySettable =
        discoveryProps.SendTargetsDiscoverySettable;
    pProps->sendTargetsDiscoveryEnabled =
        discoveryProps.SendTargetsDiscoveryEnabled;

    (void) close(fd);
    return (IMA_STATUS_SUCCESS);
}

IMA_API IMA_STATUS IMA_FreeMemory(
    void *pMemory
)
{
    if (pMemory != NULL)
        free(pMemory);
    return (IMA_STATUS_SUCCESS);
}

IMA_API IMA_STATUS IMA_GetNonSharedNodeOidList(
        IMA_OID_LIST **ppList
)
{
    if (ppList == NULL)
        return (IMA_ERROR_INVALID_PARAMETER);

    *ppList = (IMA_OID_LIST*) calloc(1, sizeof (IMA_OID_LIST));
    if (*ppList == NULL) {
        return (IMA_ERROR_INSUFFICIENT_MEMORY);
    }
    (*ppList)->oidCount = 0;

    return (IMA_STATUS_SUCCESS);
}

IMA_API IMA_STATUS IMA_GetFirstBurstLengthProperties(
        IMA_OID Oid,
        IMA_MIN_MAX_VALUE *pProps
)
{
    return (getISCSINodeParameter(MIN_MAX_PARAM, &Oid, pProps,
        ISCSI_LOGIN_PARAM_FIRST_BURST_LENGTH));
}

IMA_API IMA_STATUS IMA_GetMaxBurstLengthProperties(
        IMA_OID Oid,
        IMA_MIN_MAX_VALUE *pProps
)
{
    return (getISCSINodeParameter(MIN_MAX_PARAM, &Oid, pProps,
        ISCSI_LOGIN_PARAM_MAX_BURST_LENGTH));
}

IMA_API IMA_STATUS IMA_GetMaxRecvDataSegmentLengthProperties(
        IMA_OID Oid,
        IMA_MIN_MAX_VALUE *pProps
)
{
    return (getISCSINodeParameter(MIN_MAX_PARAM, &Oid, pProps,
        ISCSI_LOGIN_PARAM_MAX_RECV_DATA_SEGMENT_LENGTH));
}

/*ARGSUSED*/
IMA_API IMA_STATUS IMA_PluginIOCtl(
        IMA_OID pluginOid,
        IMA_UINT command,
        const void *pInputBuffer,
        IMA_UINT inputBufferLength,
        void *pOutputBuffer,
        IMA_UINT *pOutputBufferLength
)
{
    return (IMA_ERROR_NOT_SUPPORTED);
}

IMA_API IMA_STATUS IMA_SetFirstBurstLength(
        IMA_OID lhbaId,
        IMA_UINT firstBurstLength
)
{
    IMA_MIN_MAX_VALUE mv;

    mv.currentValue = firstBurstLength;
    return (setISCSINodeParameter(MIN_MAX_PARAM, &lhbaId, &mv,
        ISCSI_LOGIN_PARAM_FIRST_BURST_LENGTH));
}

IMA_API IMA_STATUS IMA_SetMaxBurstLength(
        IMA_OID lhbaId,
        IMA_UINT maxBurstLength
)
{
    IMA_MIN_MAX_VALUE mv;

    mv.currentValue = maxBurstLength;
    return (setISCSINodeParameter(MIN_MAX_PARAM, &lhbaId, &mv,
        ISCSI_LOGIN_PARAM_MAX_BURST_LENGTH));
}

IMA_API IMA_STATUS IMA_SetMaxRecvDataSegmentLength(
        IMA_OID lhbaId,
        IMA_UINT maxRecvDataSegmentLength
)
{
    IMA_MIN_MAX_VALUE mv;

    mv.currentValue = maxRecvDataSegmentLength;
    return (setISCSINodeParameter(MIN_MAX_PARAM, &lhbaId, &mv,
        ISCSI_LOGIN_PARAM_MAX_RECV_DATA_SEGMENT_LENGTH));
}

IMA_API IMA_STATUS IMA_GetMaxConnectionsProperties(
        IMA_OID Oid,
        IMA_MIN_MAX_VALUE *pProps
)
{
    return (getISCSINodeParameter(MIN_MAX_PARAM, &Oid, pProps,
        ISCSI_LOGIN_PARAM_MAX_CONNECTIONS));
}

IMA_API IMA_STATUS IMA_SetMaxConnections(
        IMA_OID lhbaId,
        IMA_UINT maxConnections
)
{
    IMA_MIN_MAX_VALUE mv;

    mv.currentValue = maxConnections;
    return (setISCSINodeParameter(MIN_MAX_PARAM, &lhbaId, &mv,
        ISCSI_LOGIN_PARAM_MAX_CONNECTIONS));
}

IMA_API IMA_STATUS IMA_GetDefaultTime2RetainProperties(
        IMA_OID lhbaId,
        IMA_MIN_MAX_VALUE *pProps
)
{
    return (getISCSINodeParameter(MIN_MAX_PARAM, &lhbaId, pProps,
        ISCSI_LOGIN_PARAM_DEFAULT_TIME_2_RETAIN));
}

IMA_API IMA_STATUS IMA_SetDefaultTime2Retain(
        IMA_OID lhbaId,
        IMA_UINT defaultTime2Retain
)
{
    IMA_MIN_MAX_VALUE mv;

    mv.currentValue = defaultTime2Retain;
    return (setISCSINodeParameter(MIN_MAX_PARAM, &lhbaId, &mv,
        ISCSI_LOGIN_PARAM_DEFAULT_TIME_2_RETAIN));
}

IMA_API IMA_STATUS IMA_GetDefaultTime2WaitProperties(
        IMA_OID lhbaId,
        IMA_MIN_MAX_VALUE *pProps
)
{
    return (getISCSINodeParameter(MIN_MAX_PARAM, &lhbaId, pProps,
        ISCSI_LOGIN_PARAM_DEFAULT_TIME_2_WAIT));
}

IMA_API IMA_STATUS IMA_SetDefaultTime2Wait(
        IMA_OID lhbaId,
        IMA_UINT defaultTime2Wait
)
{
    IMA_MIN_MAX_VALUE mv;

    mv.currentValue = defaultTime2Wait;
    return (setISCSINodeParameter(MIN_MAX_PARAM, &lhbaId, &mv,
        ISCSI_LOGIN_PARAM_DEFAULT_TIME_2_WAIT));
}

IMA_API IMA_STATUS IMA_GetMaxOutstandingR2TProperties(
        IMA_OID Oid,
        IMA_MIN_MAX_VALUE *pProps
)
{
    return (getISCSINodeParameter(MIN_MAX_PARAM, &Oid, pProps,
        ISCSI_LOGIN_PARAM_OUTSTANDING_R2T));
}

IMA_API IMA_STATUS IMA_SetMaxOutstandingR2T(
        IMA_OID lhbaId,
        IMA_UINT maxOutstandingR2T
)
{
    IMA_MIN_MAX_VALUE mv;

    mv.currentValue = maxOutstandingR2T;
    return (setISCSINodeParameter(MIN_MAX_PARAM, &lhbaId, &mv,
        ISCSI_LOGIN_PARAM_OUTSTANDING_R2T));
}


IMA_API IMA_STATUS IMA_GetErrorRecoveryLevelProperties(
        IMA_OID Oid,
        IMA_MIN_MAX_VALUE *pProps
)
{
    return (getISCSINodeParameter(MIN_MAX_PARAM, &Oid, pProps,
        ISCSI_LOGIN_PARAM_ERROR_RECOVERY_LEVEL));
}

IMA_API IMA_STATUS IMA_SetErrorRecoveryLevel(
        IMA_OID Oid,
        IMA_UINT errorRecoveryLevel
)
{
    IMA_MIN_MAX_VALUE mv;

    mv.currentValue = errorRecoveryLevel;
    return (setISCSINodeParameter(MIN_MAX_PARAM, &Oid, &mv,
        ISCSI_LOGIN_PARAM_ERROR_RECOVERY_LEVEL));
}

IMA_API IMA_STATUS IMA_GetInitialR2TProperties(
        IMA_OID Oid,
        IMA_BOOL_VALUE *pProps
)
{
    return (getISCSINodeParameter(BOOL_PARAM, &Oid, pProps,
        ISCSI_LOGIN_PARAM_INITIAL_R2T));
}

IMA_API IMA_STATUS IMA_SetInitialR2T(
        IMA_OID Oid,
        IMA_BOOL initialR2T
)
{
    IMA_BOOL_VALUE bv;

    bv.currentValue = initialR2T;
    return (setISCSINodeParameter(BOOL_PARAM, &Oid, &bv,
        ISCSI_LOGIN_PARAM_INITIAL_R2T));
}


IMA_API IMA_STATUS IMA_GetImmediateDataProperties(
        IMA_OID Oid,
        IMA_BOOL_VALUE *pProps
)
{
    return (getISCSINodeParameter(BOOL_PARAM, &Oid, pProps,
        ISCSI_LOGIN_PARAM_IMMEDIATE_DATA));
}

IMA_API IMA_STATUS IMA_SetImmediateData(
        IMA_OID Oid,
        IMA_BOOL immediateData
)
{
    IMA_BOOL_VALUE bv;

    bv.currentValue = immediateData;
    return (setISCSINodeParameter(BOOL_PARAM, &Oid, &bv,
        ISCSI_LOGIN_PARAM_IMMEDIATE_DATA));
}

IMA_API IMA_STATUS IMA_GetDataPduInOrderProperties(
        IMA_OID Oid,
        IMA_BOOL_VALUE *pProps
)
{
    return (getISCSINodeParameter(BOOL_PARAM, &Oid, pProps,
        ISCSI_LOGIN_PARAM_DATA_PDU_IN_ORDER));
}

IMA_API IMA_STATUS IMA_SetDataPduInOrder(
        IMA_OID Oid,
        IMA_BOOL dataPduInOrder
)
{
    IMA_BOOL_VALUE bv;

    bv.currentValue = dataPduInOrder;
    return (setISCSINodeParameter(BOOL_PARAM, &Oid, &bv,
        ISCSI_LOGIN_PARAM_DATA_PDU_IN_ORDER));
}

IMA_API IMA_STATUS IMA_GetDataSequenceInOrderProperties(
        IMA_OID Oid,
        IMA_BOOL_VALUE *pProps
)
{
    return (getISCSINodeParameter(BOOL_PARAM, &Oid, pProps,
        ISCSI_LOGIN_PARAM_DATA_SEQUENCE_IN_ORDER));
}

IMA_API IMA_STATUS IMA_SetDataSequenceInOrder(
        IMA_OID Oid,
        IMA_BOOL dataSequenceInOrder
)
{
    IMA_BOOL_VALUE bv;

    bv.currentValue = dataSequenceInOrder;
    return (setISCSINodeParameter(BOOL_PARAM, &Oid, &bv,
        ISCSI_LOGIN_PARAM_DATA_SEQUENCE_IN_ORDER));
}


/*ARGSUSED*/
IMA_API IMA_STATUS IMA_SetStatisticsCollection(
        IMA_OID Oid,
        IMA_BOOL enableStatisticsCollection
)
{
    return (IMA_ERROR_NOT_SUPPORTED);
}


/*ARGSUSED*/
IMA_API IMA_STATUS IMA_GetDiscoveryAddressOidList(
        IMA_OID Oid,
        IMA_OID_LIST **ppList
)
{
    int fd, i, addr_list_size;
    iscsi_addr_list_t *idlp, al_info;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    (void) memset(&al_info, 0, sizeof (al_info));
    al_info.al_vers = ISCSI_INTERFACE_VERSION;
    al_info.al_in_cnt = 0;

    /*
     * Issue ioctl to obtain the number of targets.
     */
    if (ioctl(fd, ISCSI_DISCOVERY_ADDR_LIST_GET, &al_info) != 0) {
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_DISCOVERY_ADDR_LIST_GET ioctl %d failed, errno: %d",
            ISCSI_DISCOVERY_ADDR_LIST_GET, errno);
        (void) close(fd);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    addr_list_size = sizeof (iscsi_addr_list_t);
    if (al_info.al_out_cnt > 1) {
        addr_list_size += (sizeof (iscsi_addr_list_t) *
            al_info.al_out_cnt - 1);
    }

    idlp = (iscsi_addr_list_t *)calloc(1, addr_list_size);
    if (idlp == NULL) {
        (void) close(fd);
        return (IMA_ERROR_INSUFFICIENT_MEMORY);
    }

    idlp->al_vers = ISCSI_INTERFACE_VERSION;
    idlp->al_in_cnt = al_info.al_out_cnt;
    /* Issue the same ioctl again to obtain the OIDs. */
    if (ioctl(fd, ISCSI_DISCOVERY_ADDR_LIST_GET, idlp) != 0) {
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_TARGET_OID_LIST_GET ioctl %d failed, errno: %d",
            ISCSI_DISCOVERY_ADDR_LIST_GET, errno);
        free(idlp);
        (void) close(fd);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    *ppList = (IMA_OID_LIST *)calloc(1, sizeof (IMA_OID_LIST) +
        idlp->al_out_cnt * sizeof (IMA_OID));
    if (*ppList == NULL) {
        free(idlp);
        (void) close(fd);
        return (IMA_ERROR_INSUFFICIENT_MEMORY);
    }
    (*ppList)->oidCount = idlp->al_out_cnt;

    for (i = 0; i < idlp->al_out_cnt; i++) {
        (*ppList)->oids[i].objectType =
            IMA_OBJECT_TYPE_DISCOVERY_ADDRESS;
        (*ppList)->oids[i].ownerId = pluginOwnerId;
        (*ppList)->oids[i].objectSequenceNumber =
            idlp->al_addrs[i].a_oid;
    }

    free(idlp);
    (void) close(fd);

    return (IMA_STATUS_SUCCESS);
}


/* ARGSUSED */
IMA_API IMA_STATUS IMA_GetStaticDiscoveryTargetOidList(
        IMA_OID Oid,
        IMA_OID_LIST **ppList
)
{
    if (Oid.objectType == IMA_OBJECT_TYPE_PNP) {
        return (IMA_ERROR_OBJECT_NOT_FOUND);
    }

    return (get_target_oid_list(ISCSI_STATIC_TGT_OID_LIST, ppList));
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_GetTargetOidList(
        IMA_OID Oid,
        IMA_OID_LIST **ppList
)
{
    return (get_target_oid_list(ISCSI_TGT_PARAM_OID_LIST, ppList));
}

/*ARGSUSED*/
IMA_API IMA_STATUS IMA_SetIsnsDiscovery(
        IMA_OID phbaId,
        IMA_BOOL enableIsnsDiscovery,
        IMA_ISNS_DISCOVERY_METHOD discoveryMethod,
        const IMA_HOST_ID *iSnsHost
)
{
    /* XXX need to set discovery Method and domaineName */
    return (configure_discovery_method(enableIsnsDiscovery,
        iSCSIDiscoveryMethodISNS));
}


/* ARGSUSED */
IMA_API IMA_STATUS IMA_SetSlpDiscovery(
        IMA_OID phbaId,
        IMA_BOOL enableSlpDiscovery
)
{
    return (configure_discovery_method(enableSlpDiscovery,
        iSCSIDiscoveryMethodSLP));
}


/* ARGSUSED */
IMA_API IMA_STATUS IMA_SetStaticDiscovery(
        IMA_OID phbaId,
        IMA_BOOL enableStaticDiscovery
)
{
    return (configure_discovery_method(enableStaticDiscovery,
        iSCSIDiscoveryMethodStatic));
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_SetSendTargetsDiscovery(
        IMA_OID phbaId,
        IMA_BOOL enableSendTargetsDiscovery
)
{
    return (configure_discovery_method(enableSendTargetsDiscovery,
        iSCSIDiscoveryMethodSendTargets));
}

/*ARGSUSED*/
IMA_API IMA_STATUS IMA_RemoveDiscoveryAddress(
        IMA_OID discoveryAddressOid
)
{
    int status, fd, i, addr_list_size;
    iscsi_addr_list_t *idlp, al_info;
    iscsi_addr_t *matched_addr = NULL;
    entry_t entry;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    (void) memset(&al_info, 0, sizeof (al_info));
    al_info.al_vers = ISCSI_INTERFACE_VERSION;
    al_info.al_in_cnt = 0;

    /*
     * Issue ioctl to obtain the number of discovery address.
     */
    if (ioctl(fd, ISCSI_DISCOVERY_ADDR_LIST_GET, &al_info) != 0) {
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_DISCOVERY_ADDR_LIST_GET ioctl %d failed, errno: %d",
            ISCSI_DISCOVERY_ADDR_LIST_GET, errno);
        (void) close(fd);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    if (al_info.al_out_cnt == 0) {
        return (IMA_ERROR_OBJECT_NOT_FOUND);
    }

    addr_list_size = sizeof (iscsi_addr_list_t);
    if (al_info.al_out_cnt > 1) {
        addr_list_size += (sizeof (iscsi_addr_list_t) *
            al_info.al_out_cnt - 1);
    }

    idlp = (iscsi_addr_list_t *)calloc(1, addr_list_size);
    if (idlp == NULL) {
        (void) close(fd);
        return (IMA_ERROR_INSUFFICIENT_MEMORY);
    }

    idlp->al_vers = ISCSI_INTERFACE_VERSION;
    idlp->al_in_cnt = al_info.al_out_cnt;

    /* Issue the same ioctl again to obtain the OIDs. */
    if (ioctl(fd, ISCSI_DISCOVERY_ADDR_LIST_GET, idlp) != 0) {
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_TARGET_OID_LIST_GET ioctl %d failed, errno: %d",
            ISCSI_DISCOVERY_ADDR_LIST_GET, errno);
        free(idlp);
        (void) close(fd);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    for (i = 0; i < idlp->al_out_cnt; i++) {
        if (discoveryAddressOid.objectSequenceNumber !=
            idlp->al_addrs[i].a_oid)
            continue;
        matched_addr = &(idlp->al_addrs[i]);
    }

    if (matched_addr == NULL) {
        return (IMA_ERROR_OBJECT_NOT_FOUND);
    }


    (void) memset(&entry, 0, sizeof (entry_t));
    entry.e_vers = ISCSI_INTERFACE_VERSION;
    entry.e_oid  = discoveryAddressOid.objectSequenceNumber;
    if (matched_addr->a_addr.i_insize == sizeof (struct in_addr)) {
        bcopy(&matched_addr->a_addr.i_addr.in4,
            &entry.e_u.u_in4, sizeof (entry.e_u.u_in4));
        entry.e_insize = sizeof (struct in_addr);
    } else if (matched_addr->a_addr.i_insize == sizeof (struct in6_addr)) {
        bcopy(&matched_addr->a_addr.i_addr.in6,
            &entry.e_u.u_in6, sizeof (entry.e_u.u_in6));
        entry.e_insize = sizeof (struct in6_addr);
    } else {
        /* Should not happen */
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_STATIC_GET returned bad address");
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    entry.e_port = matched_addr->a_port;
    entry.e_tpgt = 0;
    entry.e_oid = discoveryAddressOid.objectSequenceNumber;

    if (ioctl(fd, ISCSI_DISCOVERY_ADDR_CLEAR, &entry)) {
        status = errno;
        (void) close(fd);
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_DISCOVERY_ADDR_CLEAR ioctl failed, errno: %d",
            errno);
        if (status == EBUSY) {
            return (IMA_ERROR_LU_IN_USE);
        } else {
            return (IMA_ERROR_UNEXPECTED_OS_ERROR);
        }
    }

    free(idlp);
    (void) close(fd);
    return (IMA_STATUS_SUCCESS);
}


/*ARGSUSED*/
IMA_API IMA_STATUS IMA_AddDiscoveryAddress(
        IMA_OID oid,
        const IMA_TARGET_ADDRESS discoveryAddress,
        IMA_OID *pDiscoveryAddressOid
)
{
    entry_t     entry;
    int     fd;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    if (prepare_discovery_entry(discoveryAddress, &entry) !=
        DISC_ADDR_OK) {
        (void) close(fd);
        return (IMA_ERROR_INVALID_PARAMETER);
    }

    if (ioctl(fd, ISCSI_DISCOVERY_ADDR_SET, &entry)) {
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_DISCOVERY_ADDR_SET ioctl failed, errno: %d",
            errno);
        (void) close(fd);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    pDiscoveryAddressOid->ownerId = pluginOwnerId;
    pDiscoveryAddressOid->objectType = IMA_OBJECT_TYPE_DISCOVERY_ADDRESS;
    pDiscoveryAddressOid->objectSequenceNumber = entry.e_oid;

    (void) close(fd);
    return (IMA_STATUS_SUCCESS);
}

IMA_API IMA_STATUS IMA_GetStaticDiscoveryTargetProperties(
        IMA_OID staticTargetOid,
        IMA_STATIC_DISCOVERY_TARGET_PROPERTIES *pProps
)
{
    char static_target_addr_str[SUN_IMA_IP_ADDRESS_LEN];
    char static_target_addr_port_str[SUN_IMA_IP_ADDRESS_LEN];
    int af, fd, status;
    iscsi_static_property_t prop;
    /* LINTED */
    IMA_HOST_ID *host;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    (void) memset(&prop, 0, sizeof (iscsi_static_property_t));
    prop.p_vers = ISCSI_INTERFACE_VERSION;
    prop.p_oid = (uint32_t)staticTargetOid.objectSequenceNumber;
    if (ioctl(fd, ISCSI_STATIC_GET, &prop) != 0) {
        status = errno;
        (void) close(fd);
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_STATIC_GET ioctl failed, errno: %d", status);
        if (status == ENOENT) {
            return (IMA_ERROR_OBJECT_NOT_FOUND);

        } else {
            return (IMA_ERROR_UNEXPECTED_OS_ERROR);
        }
    }
    (void) close(fd);

    (void) mbstowcs(pProps->staticTarget.targetName, (char *)prop.p_name,
        sizeof (pProps->staticTarget.targetName)/sizeof (IMA_WCHAR));

    if (prop.p_addr_list.al_addrs[0].a_addr.i_insize ==
        sizeof (struct in_addr)) {
        /* IPv4 */
        af = AF_INET;
    } else if (prop.p_addr_list.al_addrs[0].a_addr.i_insize ==
        sizeof (struct in6_addr)) {
        /* IPv6 */
        af = AF_INET6;
    } else {
        /* Should not happen */
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_STATIC_GET returned bad address");
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    if (inet_ntop(af, &prop.p_addr_list.al_addrs[0].a_addr.i_addr,
        static_target_addr_str, sizeof (static_target_addr_str)) == NULL) {
        /* Should not happen */
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_STATIC_GET returned address that cannot "
            "be inet_ntop");
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    } else {
        if (af == AF_INET) {
            (void) snprintf(static_target_addr_port_str,
                SUN_IMA_IP_ADDRESS_LEN,
                "%s:%ld",
                static_target_addr_str,
                prop.p_addr_list.al_addrs[0].a_port);
        } else {
            (void) snprintf(static_target_addr_port_str,
                SUN_IMA_IP_ADDRESS_LEN,
                "[%s]:%ld",
                static_target_addr_str,
                prop.p_addr_list.al_addrs[0].a_port);
        }
        host = &pProps->staticTarget.targetAddress.hostnameIpAddress;
        (void) mbstowcs(pProps->staticTarget.
            targetAddress.hostnameIpAddress.
            id.hostname, static_target_addr_port_str,
            sizeof (host->id.hostname) / sizeof (IMA_WCHAR));
    }

    return (IMA_STATUS_SUCCESS);
}

/*ARGSUSED*/
IMA_API IMA_STATUS IMA_GetDiscoveryAddressProperties(
        IMA_OID discoveryAddressOid,
        IMA_DISCOVERY_ADDRESS_PROPERTIES *pProps
)
{
    int fd;
    int i;
    int addr_list_size;
    iscsi_addr_list_t *idlp, al_info;
    iscsi_addr_t *matched_addr = NULL;
    /* LINTED */
    IMA_TARGET_ADDRESS *addr;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    (void) memset(&al_info, 0, sizeof (al_info));
    al_info.al_vers = ISCSI_INTERFACE_VERSION;
    al_info.al_in_cnt = 0;

    /*
     * Issue ioctl to obtain the number of discovery addresses.
     */
    if (ioctl(fd, ISCSI_DISCOVERY_ADDR_LIST_GET, &al_info) != 0) {
        (void) close(fd);
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_DISCOVERY_ADDR_LIST_GET ioctl %d failed, errno: %d",
            ISCSI_DISCOVERY_ADDR_LIST_GET, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    if (al_info.al_out_cnt == 0) {
        return (IMA_ERROR_OBJECT_NOT_FOUND);
    }

    addr_list_size = sizeof (iscsi_addr_list_t);
    if (al_info.al_out_cnt > 1) {
        addr_list_size += (sizeof (iscsi_addr_list_t) *
            al_info.al_out_cnt - 1);
    }

    idlp = (iscsi_addr_list_t *)calloc(1, addr_list_size);
    if (idlp == NULL) {
        (void) close(fd);
        return (IMA_ERROR_INSUFFICIENT_MEMORY);
    }

    idlp->al_vers = ISCSI_INTERFACE_VERSION;
    idlp->al_in_cnt = al_info.al_out_cnt;

    /* Issue the same ioctl again to obtain the OIDs. */
    if (ioctl(fd, ISCSI_DISCOVERY_ADDR_LIST_GET, idlp) != 0) {
        free(idlp);
        (void) close(fd);
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_TARGET_OID_LIST_GET ioctl %d failed, errno: %d",
            ISCSI_DISCOVERY_ADDR_LIST_GET, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    for (i = 0; i < idlp->al_out_cnt; i++) {
        if (discoveryAddressOid.objectSequenceNumber !=
            idlp->al_addrs[i].a_oid)
            continue;
        matched_addr = &(idlp->al_addrs[i]);
    }

    if (matched_addr == NULL) {
        return (IMA_ERROR_OBJECT_NOT_FOUND);
    }

    if (matched_addr->a_addr.i_insize == sizeof (struct in_addr)) {
        pProps->discoveryAddress.hostnameIpAddress.id.
            ipAddress.ipv4Address = IMA_TRUE;
    } else if (matched_addr->a_addr.i_insize == sizeof (struct in6_addr)) {
        pProps->discoveryAddress.hostnameIpAddress.id.
            ipAddress.ipv4Address = IMA_FALSE;
    } else {
        /* Should not happen */
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_STATIC_GET returned bad address");
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    addr = &pProps->discoveryAddress;
    bcopy(&(matched_addr->a_addr.i_addr), pProps->discoveryAddress.
        hostnameIpAddress.id.ipAddress.ipAddress,
        sizeof (addr->hostnameIpAddress.id.ipAddress.ipAddress));

    pProps->discoveryAddress.portNumber = matched_addr->a_port;

    pProps->associatedLhbaOid.objectType = IMA_OBJECT_TYPE_LHBA;
    pProps->associatedLhbaOid.ownerId = pluginOwnerId;
    pProps->associatedLhbaOid.objectSequenceNumber = ISCSI_INITIATOR_OID;

    free(idlp);
    (void) close(fd);

    return (IMA_STATUS_SUCCESS);
}

IMA_API IMA_STATUS IMA_RemoveStaticDiscoveryTarget(
        IMA_OID staticTargetOid
)
{
    entry_t entry;
    int status, fd;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    (void) memset(&entry, 0, sizeof (entry_t));
    entry.e_vers = ISCSI_INTERFACE_VERSION;
    entry.e_oid = (uint32_t)staticTargetOid.objectSequenceNumber;

    if (ioctl(fd, ISCSI_STATIC_CLEAR, &entry)) {
        status = errno;
        (void) close(fd);
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_STATIC_CLEAR ioctl failed, errno: %d", errno);
        if (status == EBUSY) {
            return (IMA_ERROR_LU_IN_USE);
        } else {
            return (IMA_ERROR_UNEXPECTED_OS_ERROR);
        }
    }

    (void) close(fd);
    return (IMA_STATUS_SUCCESS);
}

/*ARGSUSED*/
IMA_API IMA_STATUS IMA_AddStaticDiscoveryTarget(
        IMA_OID lhbaOid,
        const IMA_STATIC_DISCOVERY_TARGET staticConfig,
        IMA_OID *pTargetOid
)
{
    char            tmp_target_str[SUN_IMA_IP_ADDRESS_LEN];
    char            target_addr_str[SUN_IMA_IP_ADDRESS_LEN];
    char            target_port_str[SUN_IMA_IP_PORT_LEN];
    iscsi_target_entry_t    target;
    int         fd;
    int         target_in_addr_size;
    int         target_port;
    union {
        struct in_addr  u_in4;
        struct in6_addr u_in6;
    }           target_in;

    /*
     * staticConfig.address may come in with port number at its trailer.
     * Parse it to separate the IP address and port number.
     * Also translate the hostname to IP address if needed.
     */
    (void) wcstombs(tmp_target_str,
        staticConfig.targetAddress.hostnameIpAddress.
        id.hostname, sizeof (tmp_target_str));

    if (tmp_target_str[0] == '[') {
        /* IPv6 address */
        char *closeBracketPos;
        closeBracketPos = strchr(tmp_target_str, ']');
        if (!closeBracketPos) {
            return (IMA_ERROR_INVALID_PARAMETER);
        }

        *closeBracketPos = NULL;
        (void) strlcpy(target_addr_str, &tmp_target_str[1],
            sizeof (target_addr_str));

        if (inet_pton(AF_INET6, target_addr_str,
            &target_in.u_in6) != 1) {
            return (IMA_ERROR_INVALID_PARAMETER);
        }
        target_in_addr_size = sizeof (struct in6_addr);

        /* Extract the port number */
        closeBracketPos++;
        if (*closeBracketPos == ':') {
            closeBracketPos++;

            if (*closeBracketPos != NULL) {
                (void) strlcpy(target_port_str, closeBracketPos,
                    sizeof (target_port_str));
                target_port = atoi(target_port_str);
            } else {
                target_port = ISCSI_LISTEN_PORT;
            }
        } else {
            /* No port number specified; use default port */
            target_port = ISCSI_LISTEN_PORT;
        }
    } else {
        /* IPv4 address */
        char *colonPos;
        colonPos = strchr(tmp_target_str, ':');
        if (!colonPos) {
            /* No port number specified; use default port */
            target_port = ISCSI_LISTEN_PORT;
            (void) strlcpy(target_addr_str, tmp_target_str,
                sizeof (target_addr_str));
        } else {
            *colonPos = NULL;
            (void) strlcpy(target_addr_str, tmp_target_str,
                sizeof (target_addr_str));
            /* Extract the port number */
            colonPos++;
            if (*colonPos != NULL) {
                (void) strlcpy(target_port_str, colonPos,
                    sizeof (target_port_str));
                target_port = atoi(target_port_str);
            } else {
                target_port = ISCSI_LISTEN_PORT;
            }
        }

        if (inet_pton(AF_INET, target_addr_str,
            &target_in.u_in4) != 1) {
            return (IMA_ERROR_INVALID_PARAMETER);
        }

        target_in_addr_size = sizeof (struct in_addr);
    }


    (void) memset(&target, 0, sizeof (iscsi_target_entry_t));
    target.te_entry.e_vers = ISCSI_INTERFACE_VERSION;
    target.te_entry.e_oid = ISCSI_OID_NOTSET;
    target.te_entry.e_tpgt = ISCSI_DEFAULT_TPGT;

    (void) wcstombs((char *)target.te_name, staticConfig.targetName,
        ISCSI_MAX_NAME_LEN);

    target.te_entry.e_insize = target_in_addr_size;
    if (target.te_entry.e_insize == sizeof (struct in_addr)) {
        target.te_entry.e_u.u_in4.s_addr = target_in.u_in4.s_addr;
    } else if (target.te_entry.e_insize == sizeof (struct in6_addr)) {
        bcopy(target_in.u_in6.s6_addr,
            target.te_entry.e_u.u_in6.s6_addr,
            sizeof (struct in6_addr));
    } else {
        /* Should not happen */
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_STATIC_GET returned bad address");
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    target.te_entry.e_port = target_port;

    /* No target portal group specified. Default to -1. */
    target.te_entry.e_tpgt = ISCSI_DEFAULT_TPGT;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    if (ioctl(fd, ISCSI_STATIC_SET, &target)) {
        /*
         * Encountered problem setting the IP address and port for
         * the target just added.
         */
        (void) close(fd);
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_STATIC_SET ioctl failed, errno: %d", errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    pTargetOid->objectType = IMA_OBJECT_TYPE_TARGET;
    pTargetOid->ownerId = pluginOwnerId;
    pTargetOid->objectSequenceNumber = target.te_entry.e_oid;

    (void) close(fd);
    return (IMA_STATUS_SUCCESS);
}

IMA_API IMA_STATUS IMA_GetTargetProperties(
        IMA_OID targetId,
        IMA_TARGET_PROPERTIES *pProps
)
{
    return (getTargetProperties(targetId, pProps));
}

static IMA_STATUS getTargetProperties(
        IMA_OID targetId,
        IMA_TARGET_PROPERTIES *pProps
)
{
    int         fd;
    iscsi_property_t    prop;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    (void) memset(&prop, 0, sizeof (iscsi_property_t));
    prop.p_vers = ISCSI_INTERFACE_VERSION;
    prop.p_oid = (uint32_t)targetId.objectSequenceNumber;

    if (ioctl(fd, ISCSI_TARGET_PROPS_GET, &prop) != 0) {
        (void) close(fd);
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_TARGET_PROPS_GET ioctl failed, errno: %d", errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    (void) mbstowcs(pProps->name, (char *)prop.p_name, IMA_NODE_NAME_LEN);
    (void) memset(pProps->alias, 0,
        sizeof (IMA_WCHAR) * IMA_NODE_ALIAS_LEN);
    if (prop.p_alias_len > 0) {
        (void) mbstowcs(pProps->alias, (char *)prop.p_alias,
            IMA_NODE_ALIAS_LEN);
    }

    /* Initialize the discovery method to unknown method. */
    pProps->discoveryMethodFlags = IMA_TARGET_DISCOVERY_METHOD_UNKNOWN;
    if (!((prop.p_discovery & iSCSIDiscoveryMethodStatic) ^
        iSCSIDiscoveryMethodStatic)) {
        pProps->discoveryMethodFlags |=
            IMA_TARGET_DISCOVERY_METHOD_STATIC;
    }

    if (!((prop.p_discovery & iSCSIDiscoveryMethodSLP) ^
        iSCSIDiscoveryMethodSLP)) {
        pProps->discoveryMethodFlags |= IMA_TARGET_DISCOVERY_METHOD_SLP;
    }

    if (!((prop.p_discovery & iSCSIDiscoveryMethodISNS) ^
        iSCSIDiscoveryMethodISNS)) {
        pProps->discoveryMethodFlags |= iSCSIDiscoveryMethodISNS;
    }

    if (!((prop.p_discovery & iSCSIDiscoveryMethodSendTargets) ^
        iSCSIDiscoveryMethodSendTargets)) {
        pProps->discoveryMethodFlags |= iSCSIDiscoveryMethodSendTargets;
    }

    (void) close(fd);
    return (IMA_STATUS_SUCCESS);
}

/*ARGSUSED*/
IMA_API IMA_STATUS IMA_GetTargetErrorStatistics(
        IMA_OID targetId,
        IMA_TARGET_ERROR_STATISTICS *pStats
)
{
    return (IMA_ERROR_NOT_SUPPORTED);
}

IMA_API IMA_STATUS IMA_GetLuOidList(
        IMA_OID oid,
        IMA_OID_LIST **ppList
)
{
    IMA_STATUS      status;
    int         i;
    iscsi_lun_list_t    *pLunList;

    if (oid.objectType == IMA_OBJECT_TYPE_LHBA) {
        status = get_target_lun_oid_list(NULL, &pLunList);
    } else {
        status = get_target_lun_oid_list(&oid, &pLunList);
    }

    if (!IMA_SUCCESS(status)) {
        return (status);
    }

    *ppList = (IMA_OID_LIST *) calloc(1, (sizeof (IMA_OID_LIST) +
        (pLunList->ll_out_cnt * sizeof (IMA_OID))));
    if (*ppList == NULL) {
        return (IMA_ERROR_INSUFFICIENT_MEMORY);
    }
    (*ppList)->oidCount = pLunList->ll_out_cnt;
    for (i = 0; i < pLunList->ll_out_cnt; i++) {
        (*ppList)->oids[i].objectType = IMA_OBJECT_TYPE_LU;
        (*ppList)->oids[i].ownerId = pluginOwnerId;
        (*ppList)->oids[i].objectSequenceNumber =
            pLunList->ll_luns[i].l_oid;
    }

    free(pLunList);
    return (IMA_STATUS_SUCCESS);
}

IMA_API IMA_STATUS IMA_GetLuOid(
        IMA_OID targetId,
        IMA_UINT64 lun,
        IMA_OID *pluId
)
{
    IMA_STATUS      status;
    int         i;
    iscsi_lun_list_t    *pLunList;

    status = get_target_lun_oid_list(&targetId, &pLunList);
    if (!IMA_SUCCESS(status)) {
        return (status);
    }

    for (i = 0; i < pLunList->ll_out_cnt; i++) {
        if (pLunList->ll_luns[i].l_num == lun) {
            pluId->objectType = IMA_OBJECT_TYPE_LU;
            pluId->ownerId = pluginOwnerId;
            pluId->objectSequenceNumber =
                pLunList->ll_luns[i].l_oid;
            free(pLunList);
            return (IMA_STATUS_SUCCESS);
        }
    }

    free(pLunList);
    return (IMA_ERROR_OBJECT_NOT_FOUND);
}

IMA_API IMA_STATUS IMA_GetLuProperties(
        IMA_OID luId,
        IMA_LU_PROPERTIES *pProps
)
{
    return (getLuProperties(luId, pProps));
}

static IMA_STATUS getLuProperties(
        IMA_OID luId,
        IMA_LU_PROPERTIES *pProps
)
{
    IMA_STATUS      status;
    iscsi_lun_list_t    *pLunList;
    int         j;
    IMA_BOOL        lunMatch = IMA_FALSE;
    int         fd;
    iscsi_lun_props_t   lun;
    di_devlink_handle_t hdl;

    if (luId.objectType != IMA_OBJECT_TYPE_LU) {
        return (IMA_ERROR_INCORRECT_OBJECT_TYPE);
    }

    /*
     * get list of lun oids for all targets
     */
    status = get_target_lun_oid_list(NULL, &pLunList);
    if (!IMA_SUCCESS(status)) {
        return (status);
    }
    for (j = 0; j < pLunList->ll_out_cnt; j++) {
        /*
         * for each lun, check if match is found
         */
        if (pLunList->ll_luns[j].l_oid == luId.objectSequenceNumber) {
            /*
             * match found, break out of lun loop
             */
            lunMatch = IMA_TRUE;
            break;
        }
    }

    if (lunMatch == IMA_TRUE) {
        (void) memset(&lun, 0, sizeof (iscsi_lun_props_t));
        lun.lp_vers = ISCSI_INTERFACE_VERSION;
        lun.lp_tgt_oid = pLunList->ll_luns[j].l_tgt_oid;
        lun.lp_oid = pLunList->ll_luns[j].l_oid;
    }

    free(pLunList);

    if (lunMatch == IMA_FALSE) {
        return (IMA_ERROR_OBJECT_NOT_FOUND);
    }

    /*
     * get lun properties
     */
    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    if (ioctl(fd, ISCSI_LUN_PROPS_GET, &lun)) {
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_LUN_PROPS_GET ioctl failed, errno: %d", errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }
    (void) close(fd);

    /*
     * set property values
     */
    pProps->associatedTargetOid.objectType = IMA_OBJECT_TYPE_TARGET;
    pProps->associatedTargetOid.ownerId = pluginOwnerId;
    pProps->associatedTargetOid.objectSequenceNumber = lun.lp_tgt_oid;
    pProps->targetLun = (IMA_UINT64)lun.lp_num;
    pProps->exposedToOs = IMA_TRUE;
    (void) memset(&pProps->timeExposedToOs, 0,
        sizeof (pProps->timeExposedToOs));

    if (lun.lp_status == LunValid) {

        /* add minor device delimiter */
        (void) strcat(lun.lp_pathname, ":");

        if ((strstr(lun.lp_pathname, "sd@") != NULL) ||
            (strstr(lun.lp_pathname, "ssd@") != NULL) ||
            (strstr(lun.lp_pathname, "disk@") != NULL)) {
            /*
             * modify returned pathname to obtain the 2nd slice
             * of the raw disk
             */
            (void) strcat(lun.lp_pathname, "c,raw");
        }

        /*
         * Pathname returned by driver is the physical device path.
         * This name needs to be converted to the OS device name.
         */
        if (hdl = di_devlink_init(lun.lp_pathname, DI_MAKE_LINK)) {
            pProps->osDeviceName[0] = L'\0';
            (void) di_devlink_walk(hdl, NULL, lun.lp_pathname,
                DI_PRIMARY_LINK, (void *)pProps->osDeviceName,
                get_lun_devlink);
            if (pProps->osDeviceName[0] != L'\0') {
                /* OS device name synchronously made */
                pProps->osDeviceNameValid = IMA_TRUE;
            } else {
                pProps->osDeviceNameValid = IMA_FALSE;
            }

            (void) di_devlink_fini(&hdl);
        } else {
            pProps->osDeviceNameValid = IMA_FALSE;
        }

    } else {
        pProps->osDeviceNameValid = IMA_FALSE;
    }

    pProps->osParallelIdsValid = IMA_FALSE;

    return (IMA_STATUS_SUCCESS);
}

/*ARGSUSED*/
IMA_API IMA_STATUS IMA_GetStatisticsProperties(
        IMA_OID oid,
        IMA_STATISTICS_PROPERTIES *pProps
)
{
    return (IMA_ERROR_NOT_SUPPORTED);
}

/*ARGSUSED*/
IMA_API IMA_STATUS IMA_GetDeviceStatistics(
        IMA_OID luId,
        IMA_DEVICE_STATISTICS *pStats
)
{
    return (IMA_ERROR_NOT_SUPPORTED);
}

/*ARGSUSED*/
IMA_API IMA_STATUS IMA_LuInquiry(
    IMA_OID deviceId,
    IMA_BOOL evpd,
    IMA_BOOL cmddt,
    IMA_BYTE pageCode,
    IMA_BYTE *pOutputBuffer,
    IMA_UINT *pOutputBufferLength,
    IMA_BYTE *pSenseBuffer,
    IMA_UINT *pSenseBufferLength
)
{
    IMA_LU_PROPERTIES luProps;
    IMA_STATUS status;

    char cmdblk [ INQUIRY_CMDLEN ] =
        { INQUIRY_CMD,   /* command */
            0,   /* lun/reserved */
            0,   /* page code */
            0,   /* reserved */
    INQUIRY_REPLY_LEN,   /* allocation length */
            0 }; /* reserved/flag/link */


    int fd;
    iscsi_uscsi_t uscsi;

    cmdblk[2] = pageCode;

    (void) memset(&uscsi, 0, sizeof (iscsi_uscsi_t));
    uscsi.iu_vers   = ISCSI_INTERFACE_VERSION;

    /* iu_oid is a session oid in the driver */
    if (deviceId.objectType == IMA_OBJECT_TYPE_TARGET) {
        uscsi.iu_oid    = deviceId.objectSequenceNumber;
        uscsi.iu_lun    = 0;
    } else {
        /*
         * Get LU properties and associated session oid
         * for this lun(deviceId) and put in uscsi.iu_oid
         */
        status = getLuProperties(deviceId, &luProps);
        if (status != IMA_STATUS_SUCCESS) {
            return (status);
        }
        uscsi.iu_oid = (uint32_t)luProps.associatedTargetOid.
            objectSequenceNumber;
        uscsi.iu_lun = luProps.targetLun;
    }

    uscsi.iu_ucmd.uscsi_flags = USCSI_READ;
    uscsi.iu_ucmd.uscsi_timeout = USCSI_TIMEOUT_IN_SEC;
    uscsi.iu_ucmd.uscsi_bufaddr = (char *)pOutputBuffer;
    uscsi.iu_ucmd.uscsi_buflen = *pOutputBufferLength;
    uscsi.iu_ucmd.uscsi_rqbuf = (char *)pSenseBuffer;
    uscsi.iu_ucmd.uscsi_rqlen = *pSenseBufferLength;
    uscsi.iu_ucmd.uscsi_cdb = &cmdblk[0];
    uscsi.iu_ucmd.uscsi_cdblen = INQUIRY_CMDLEN;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    if (ioctl(fd, ISCSI_USCSI, &uscsi) != 0) {
        (void) close(fd);
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_TARGET_PROPS_GET ioctl failed, errno: %d", errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    return (IMA_STATUS_SUCCESS);
}

/*ARGSUSED*/
IMA_API IMA_STATUS IMA_LuReadCapacity(
        IMA_OID deviceId,
        IMA_UINT cdbLength,
        IMA_BYTE *pOutputBuffer,
        IMA_UINT *pOutputBufferLength,

        IMA_BYTE *pSenseBuffer,
        IMA_UINT *pSenseBufferLength
)
{
    IMA_LU_PROPERTIES luProps;
    IMA_STATUS status;
    int fd;
    iscsi_uscsi_t uscsi;

    char cmdblk [ INQUIRY_CMDLEN ] =
        { GETCAPACITY_CMD,   /* command */
                0,   /* lun/reserved */
                0,   /* page code */
                0,   /* reserved */
        INQUIRY_REPLY_LEN,   /* allocation length */
                0 }; /* reserved/flag/link */


    (void) memset(&uscsi, 0, sizeof (iscsi_uscsi_t));
    uscsi.iu_vers   = ISCSI_INTERFACE_VERSION;

    /* iu_oid is a session oid in the driver */
    if (deviceId.objectType == IMA_OBJECT_TYPE_TARGET) {
        uscsi.iu_oid    = deviceId.objectSequenceNumber;
        uscsi.iu_lun    = 0;
    } else {
        /*
         * Get LU properties and associated session oid
         * for this lun(deviceId) and put in uscsi.iu_oid
         */
        status = getLuProperties(deviceId, &luProps);
        if (status != IMA_STATUS_SUCCESS) {
            return (status);
        }
        uscsi.iu_oid = (uint32_t)luProps.associatedTargetOid.
            objectSequenceNumber;
        uscsi.iu_lun = luProps.targetLun;
    }

    uscsi.iu_ucmd.uscsi_flags = USCSI_READ;
    uscsi.iu_ucmd.uscsi_timeout = 10;
    uscsi.iu_ucmd.uscsi_bufaddr = (char *)pOutputBuffer;
    uscsi.iu_ucmd.uscsi_buflen = *pOutputBufferLength;
    uscsi.iu_ucmd.uscsi_rqbuf = (char *)pSenseBuffer;
    uscsi.iu_ucmd.uscsi_rqlen = *pSenseBufferLength;
    uscsi.iu_ucmd.uscsi_cdb = &cmdblk[0];
    uscsi.iu_ucmd.uscsi_cdblen = INQUIRY_CMDLEN;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    if (ioctl(fd, ISCSI_USCSI, &uscsi) != 0) {
        (void) close(fd);
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_TARGET_PROPS_GET ioctl failed, errno: %d", errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    return (IMA_STATUS_SUCCESS);
}

/*ARGSUSED*/
IMA_API IMA_STATUS IMA_LuReportLuns(
        IMA_OID deviceId,
        IMA_BOOL sendToWellKnownLun,
        IMA_BYTE selectReport,

        IMA_BYTE *pOutputBuffer,
        IMA_UINT *pOutputBufferLength,

        IMA_BYTE *pSenseBuffer,
        IMA_UINT *pSenseBufferLength
)
{
    IMA_LU_PROPERTIES luProps;
    IMA_STATUS status;
    int fd;
    iscsi_uscsi_t uscsi;

    char cmdblk [ INQUIRY_CMDLEN ] =
        { INQUIRY_CMD,   /* command */
            0,   /* lun/reserved */
            0,   /* page code */
            0,   /* reserved */
    INQUIRY_REPLY_LEN,   /* allocation length */
            0 }; /* reserved/flag/link */

    (void) memset(&uscsi, 0, sizeof (iscsi_uscsi_t));
    uscsi.iu_vers   = ISCSI_INTERFACE_VERSION;

    /* iu_oid is a session oid in the driver */
    if (deviceId.objectType == IMA_OBJECT_TYPE_TARGET) {
        uscsi.iu_oid    = deviceId.objectSequenceNumber;
        uscsi.iu_lun    = 0;
    } else {
        /*
         * Get LU properties and associated session oid
         * for this lun(deviceId) and put in uscsi.iu_oid
         */
        status = getLuProperties(deviceId, &luProps);
        if (status != IMA_STATUS_SUCCESS) {
            return (status);
        }
        uscsi.iu_oid = (uint32_t)luProps.associatedTargetOid.
            objectSequenceNumber;
        uscsi.iu_lun = luProps.targetLun;
    }

    uscsi.iu_ucmd.uscsi_flags = USCSI_READ;
    uscsi.iu_ucmd.uscsi_timeout = 10;
    uscsi.iu_ucmd.uscsi_bufaddr = (char *)pOutputBuffer;
    uscsi.iu_ucmd.uscsi_buflen = *pOutputBufferLength;
    uscsi.iu_ucmd.uscsi_rqbuf = (char *)pSenseBuffer;
    uscsi.iu_ucmd.uscsi_rqlen = *pSenseBufferLength;
    uscsi.iu_ucmd.uscsi_cdb = &cmdblk[0];
    uscsi.iu_ucmd.uscsi_cdblen = INQUIRY_CMDLEN;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    if (ioctl(fd, ISCSI_USCSI, &uscsi) != 0) {
        (void) close(fd);
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_TARGET_PROPS_GET ioctl failed, errno: %d", errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    return (IMA_STATUS_SUCCESS);
}

/*ARGSUSED*/
IMA_API IMA_STATUS IMA_ExposeLu(
        IMA_OID luId
)
{
    return (IMA_ERROR_NOT_SUPPORTED);
}

/*ARGSUSED*/
IMA_API IMA_STATUS IMA_UnexposeLu(
        IMA_OID luId
)
{
    return (IMA_ERROR_NOT_SUPPORTED);
}

IMA_API IMA_STATUS IMA_GetAddressKeys(
        IMA_OID targetOid,
        IMA_ADDRESS_KEYS **ppKeys
)
{
    IMA_STATUS status;
    IMA_TARGET_PROPERTIES targetProps;
    SUN_IMA_DISC_ADDR_PROP_LIST *discAddressList;
    SUN_IMA_DISC_ADDRESS_KEY_PROPERTIES *pList;
    int i, j, addressKeyCount = 0;
    int addressKeyIdx = 0;

    status = getTargetProperties(targetOid, &targetProps);
    if (status != IMA_STATUS_SUCCESS) {
        return (status);
    }

    status = getDiscoveryAddressPropertiesList(&discAddressList);
    if (status != IMA_STATUS_SUCCESS) {
        return (status);
    }

    /* Get the number of addresses to allocate */
    for (i = 0; i < discAddressList->discAddrCount; i++) {
        (void) sendTargets(discAddressList->props[i].discoveryAddress,
            &pList);
        for (j = 0; j < pList->keyCount; j++) {
            if (wcsncmp(pList->keys[j].name, targetProps.name,
                wslen(pList->keys[j].name)) == 0) {
                addressKeyCount++;
            }
        }
        (void) IMA_FreeMemory(pList);
    }

    *ppKeys = (IMA_ADDRESS_KEYS *)calloc(1, sizeof (IMA_ADDRESS_KEYS) +
        addressKeyCount * sizeof (IMA_ADDRESS_KEY));
    if (*ppKeys == NULL) {
        return (IMA_ERROR_INSUFFICIENT_MEMORY);
    }
    (*ppKeys)->addressKeyCount = addressKeyCount;
    addressKeyIdx = 0;

    for (i = 0; i < discAddressList->discAddrCount; i++) {
        (void) sendTargets(discAddressList->props[i].discoveryAddress,
            &pList);
        for (j = 0; j < pList->keyCount; j++) {
            if (wcsncmp(pList->keys[j].name, targetProps.name,
                wslen(pList->keys[j].name)) != 0) {
                continue;
            }

            bcopy(&(pList->keys[j].address.ipAddress),
                &((*ppKeys)->addressKeys[addressKeyIdx].
                ipAddress), sizeof (IMA_IP_ADDRESS));

            (*ppKeys)->addressKeys[addressKeyIdx++].portNumber =
                pList->keys[j].address.portNumber;

        }
        (void) IMA_FreeMemory(pList);
    }
    return (IMA_STATUS_SUCCESS);
}

IMA_BOOL isAuthMethodValid(IMA_OID oid, IMA_AUTHMETHOD method) {
    IMA_STATUS status;
    IMA_AUTHMETHOD supportedList[MAX_AUTHMETHODS];
    IMA_UINT i, supportedCount;
    IMA_BOOL supported;
    status = getSupportedAuthMethods(oid, IMA_FALSE, &supportedCount,
            supportedList);
    if (status != IMA_STATUS_SUCCESS)
        return (IMA_FALSE);

    supported = IMA_FALSE;
    for (i = 0; i < supportedCount; i++) {
        if (method == supportedList[i]) {
            supported = IMA_TRUE;
        }
    }

    return (supported);
}

IMA_BOOL isAuthMethodListValid(IMA_OID oid, const IMA_AUTHMETHOD *pMethodList,
                IMA_UINT methodCount) {
    IMA_UINT i, j;

    if (pMethodList == NULL) {
        return (IMA_FALSE);
    }
    /* Check list for duplicates */
    for (i = 0; i < methodCount; i++) {
        for (j = i + 1; j < methodCount; j++) {
            if (pMethodList[i] == pMethodList[j]) {
                return (IMA_FALSE);
            }
        }

        if (isAuthMethodValid(oid, pMethodList[i]) == IMA_FALSE) {
            return (IMA_FALSE);
        }
    }
    return (IMA_TRUE);
}

IMA_API IMA_STATUS IMA_GetSupportedAuthMethods(
        IMA_OID lhbaOid,
        IMA_BOOL getSettableMethods,
        IMA_UINT *pMethodCount,
        IMA_AUTHMETHOD *pMethodList
)
{
    return (getSupportedAuthMethods(lhbaOid, getSettableMethods,
        pMethodCount, pMethodList));
}


/*ARGSUSED*/
static IMA_STATUS getSupportedAuthMethods(
        IMA_OID lhbaOid,
        IMA_BOOL getSettableMethods,
        IMA_UINT *pMethodCount,
        IMA_AUTHMETHOD *pMethodList
)
{
    if (pMethodList == NULL) {
        *pMethodCount = 0;
        return (IMA_STATUS_SUCCESS);
    }

    *pMethodCount = NUM_SUPPORTED_AUTH_METHODS;
    if (*pMethodCount > 1) {
        pMethodList[0] = IMA_AUTHMETHOD_NONE;
        pMethodList[1] = IMA_AUTHMETHOD_CHAP;
    }

    return (IMA_STATUS_SUCCESS);
}

IMA_API IMA_STATUS IMA_GetInUseInitiatorAuthMethods(
        IMA_OID     lhbaOid,
        IMA_UINT    *pMethodCount,
        IMA_AUTHMETHOD *pMethodList
)
{
    return (getAuthMethods(lhbaOid, pMethodCount, pMethodList));
}

/*ARGSUSED*/
IMA_API IMA_STATUS IMA_GetInitiatorAuthParms(
        IMA_OID lhbaOid,
        IMA_AUTHMETHOD method,
        IMA_INITIATOR_AUTHPARMS *pParms
)
{
    int fd;
    iscsi_chap_props_t  chap_p;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    (void) memset(&chap_p, 0, sizeof (iscsi_chap_props_t));
    chap_p.c_vers = ISCSI_INTERFACE_VERSION;
    chap_p.c_oid = (uint32_t)lhbaOid.objectSequenceNumber;

    if (method == IMA_AUTHMETHOD_CHAP) {
        if (ioctl(fd, ISCSI_CHAP_GET, &chap_p) != 0) {
            syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_CHAP_GET ioctl failed, errno: %d", errno);
            (void) close(fd);
            return (IMA_ERROR_UNEXPECTED_OS_ERROR);
        }
    } else {
        return (IMA_ERROR_INVALID_PARAMETER);
    }

    (void) memcpy(pParms->chapParms.name, chap_p.c_user,
        chap_p.c_user_len);
    pParms->chapParms.nameLength = chap_p.c_user_len;
    (void) memcpy(pParms->chapParms.challengeSecret, chap_p.c_secret,
        chap_p.c_secret_len);
    pParms->chapParms.challengeSecretLength = chap_p.c_secret_len;

    return (IMA_STATUS_SUCCESS);
}

IMA_API IMA_STATUS IMA_SetInitiatorAuthMethods(
        IMA_OID lhbaOid,
        IMA_UINT methodCount,
        const IMA_AUTHMETHOD *pMethodList
)
{
    if (isAuthMethodListValid(lhbaOid, pMethodList,
        methodCount) == IMA_FALSE)
        return (IMA_ERROR_INVALID_PARAMETER);
    return (setAuthMethods(lhbaOid, &methodCount, pMethodList));
}

/*
 * This function only sets CHAP params since we only support CHAP for now.
 */
IMA_API IMA_STATUS IMA_SetInitiatorAuthParms(
        IMA_OID lhbaOid,
        IMA_AUTHMETHOD method,
        const IMA_INITIATOR_AUTHPARMS *pParms
)
{
    int fd;
    iscsi_chap_props_t  chap_p;

    if (method != IMA_AUTHMETHOD_CHAP)
        return (IMA_ERROR_INVALID_PARAMETER);

    if (isAuthMethodValid(lhbaOid, method) == IMA_FALSE) {
        return (IMA_ERROR_INVALID_PARAMETER);
    }

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    (void) memset(&chap_p, 0, sizeof (iscsi_chap_props_t));
    chap_p.c_vers = ISCSI_INTERFACE_VERSION;
    chap_p.c_oid = (uint32_t)lhbaOid.objectSequenceNumber;

    chap_p.c_user_len = pParms->chapParms.nameLength;
    (void) memcpy(chap_p.c_user, pParms->chapParms.name, chap_p.c_user_len);

    chap_p.c_secret_len = pParms->chapParms.challengeSecretLength;
    (void) memcpy(chap_p.c_secret, pParms->chapParms.challengeSecret,
        chap_p.c_secret_len);

    if (method == IMA_AUTHMETHOD_CHAP) {
        if (ioctl(fd, ISCSI_CHAP_SET, &chap_p) != 0) {
            (void) close(fd);
            syslog(LOG_USER|LOG_DEBUG,
                "ISCSI_CHAP_SET ioctl failed, errno: %d", errno);
            return (IMA_ERROR_UNEXPECTED_OS_ERROR);
        }
    }

    return (IMA_STATUS_SUCCESS);
}

/* A helper function to obtain iSCSI node parameters. */
static IMA_STATUS
getISCSINodeParameter(
    int paramType,
    IMA_OID *oid,
    void *pProps,
    uint32_t paramIndex
)
{
    int         fd;
    iscsi_param_get_t   pg;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    (void) memset(&pg, 0, sizeof (iscsi_param_get_t));
    pg.g_vers = ISCSI_INTERFACE_VERSION;
    pg.g_oid = (uint32_t)oid->objectSequenceNumber;
    pg.g_param = paramIndex;
    pg.g_param_type = ISCSI_SESS_PARAM;

    if (ioctl(fd, ISCSI_PARAM_GET, &pg) != 0) {
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_PARAM_GET ioctl failed, errno: %d", errno);
        (void) close(fd);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    switch (paramType) {
        IMA_BOOL_VALUE *bp;
        IMA_MIN_MAX_VALUE *mp;

        case MIN_MAX_PARAM:
            mp = (IMA_MIN_MAX_VALUE *)pProps;

            mp->currentValueValid =
                (pg.g_value.v_valid == B_TRUE) ?
                IMA_TRUE : IMA_FALSE;
            mp->currentValue = pg.g_value.v_integer.i_current;
            mp->defaultValue = pg.g_value.v_integer.i_default;
            mp->minimumValue = pg.g_value.v_integer.i_min;
            mp->maximumValue = pg.g_value.v_integer.i_max;
            mp->incrementValue = pg.g_value.v_integer.i_incr;
            break;

        case BOOL_PARAM:
            bp = (IMA_BOOL_VALUE *)pProps;
            bp->currentValueValid =
                (pg.g_value.v_valid == B_TRUE) ?
                IMA_TRUE : IMA_FALSE;
            bp->currentValue = pg.g_value.v_bool.b_current;
            bp->defaultValue = pg.g_value.v_bool.b_default;
            break;

        default:
            break;
    }

    (void) close(fd);
    return (IMA_STATUS_SUCCESS);
}

/* A helper function to set iSCSI node parameters. */
static IMA_STATUS
setISCSINodeParameter(
    int paramType,
    IMA_OID *oid,
    void *pProp,
    uint32_t paramIndex
)
{
    int         fd;
    iscsi_param_set_t   ps;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    (void) memset(&ps, 0, sizeof (iscsi_param_set_t));
    ps.s_vers = ISCSI_INTERFACE_VERSION;
    ps.s_oid = (uint32_t)oid->objectSequenceNumber;
    ps.s_param = paramIndex;

    switch (paramType) {
        IMA_BOOL_VALUE *bp;
        IMA_MIN_MAX_VALUE *mp;

        case MIN_MAX_PARAM:
            mp = (IMA_MIN_MAX_VALUE *)pProp;
            ps.s_value.v_integer = mp->currentValue;
            break;
        case BOOL_PARAM:
            bp = (IMA_BOOL_VALUE *)pProp;
            ps.s_value.v_bool =
                (bp->currentValue == IMA_TRUE) ?
                B_TRUE : B_FALSE;
            break;

        default:
            break;
    }

    if (ioctl(fd, ISCSI_PARAM_SET, &ps)) {
        int tmpErrno = errno;
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_PARAM_SET ioctl failed, errno: %d", errno);
        (void) close(fd);
        switch (tmpErrno) {
            case ENOTSUP :
                return (IMA_ERROR_NOT_SUPPORTED);
            default :
                return (IMA_ERROR_UNEXPECTED_OS_ERROR);
        }
    }

    (void) close(fd);
    return (IMA_STATUS_SUCCESS);
}

static int
prepare_discovery_entry(
    IMA_TARGET_ADDRESS discoveryAddress,
    entry_t *entry
)
{
    (void) memset(entry, 0, sizeof (entry_t));
    entry->e_vers = ISCSI_INTERFACE_VERSION;
    entry->e_oid = ISCSI_OID_NOTSET;

    if (discoveryAddress.hostnameIpAddress.id.ipAddress.ipv4Address ==
        IMA_FALSE) {
        bcopy(discoveryAddress.hostnameIpAddress.id.ipAddress.ipAddress,
            entry->e_u.u_in6.s6_addr,
            sizeof (entry->e_u.u_in6.s6_addr));
        entry->e_insize = sizeof (struct in6_addr);
    } else {
        bcopy(discoveryAddress.hostnameIpAddress.id.ipAddress.ipAddress,
            &entry->e_u.u_in4.s_addr,
            sizeof (entry->e_u.u_in4.s_addr));
        entry->e_insize = sizeof (struct in_addr);
    }

    entry->e_port = discoveryAddress.portNumber;
    entry->e_tpgt = 0;
    return (DISC_ADDR_OK);
}

static IMA_STATUS configure_discovery_method(
    IMA_BOOL enable,
    iSCSIDiscoveryMethod_t method
)
{
    int fd, status;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    if (enable == IMA_FALSE) {
        if (ioctl(fd, ISCSI_DISCOVERY_CLEAR, &method)) {
            status = errno;
            (void) close(fd);
            syslog(LOG_USER|LOG_DEBUG,
                "ISCSI_DISCOVERY_CLEAR ioctl failed, errno: %d",
                status);
            if (status == EBUSY) {
                return (IMA_ERROR_LU_IN_USE);
            } else {
                return (IMA_ERROR_UNEXPECTED_OS_ERROR);
            }
        }

        (void) close(fd);
        return (IMA_STATUS_SUCCESS);
    } else {
        /* Set the discovery method */
        if (ioctl(fd, ISCSI_DISCOVERY_SET, &method)) {
            (void) close(fd);
            syslog(LOG_USER|LOG_DEBUG,
                "ISCSI_DISCOVERY_SET ioctl failed, errno: %d",
                errno);
            return (IMA_ERROR_UNEXPECTED_OS_ERROR);
        }

        (void) close(fd);
        return (IMA_STATUS_SUCCESS);
    }
}

static IMA_STATUS get_target_oid_list(
    uint32_t targetListType,
    IMA_OID_LIST **ppList)
{
    int         fd;
    int         i;
    int         target_list_size;
    iscsi_target_list_t *idlp, tl_info;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    (void) memset(&tl_info, 0, sizeof (tl_info));
    tl_info.tl_vers = ISCSI_INTERFACE_VERSION;
    tl_info.tl_in_cnt = 0;
    tl_info.tl_tgt_list_type = targetListType;

    /*
     * Issue ioctl to obtain the number of targets.
     */
    if (ioctl(fd, ISCSI_TARGET_OID_LIST_GET, &tl_info) != 0) {
        (void) close(fd);
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_TARGET_OID_LIST_GET ioctl %d failed, errno: %d",
            targetListType, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    target_list_size = sizeof (iscsi_target_list_t);
    if (tl_info.tl_out_cnt > 1) {
        target_list_size += (sizeof (uint32_t) *
            tl_info.tl_out_cnt - 1);
    }

    idlp = (iscsi_target_list_t *)calloc(1, target_list_size);
    if (idlp == NULL) {
        (void) close(fd);
        return (IMA_ERROR_INSUFFICIENT_MEMORY);
    }

    idlp->tl_vers = ISCSI_INTERFACE_VERSION;
    idlp->tl_in_cnt = tl_info.tl_out_cnt;
    idlp->tl_tgt_list_type = targetListType;

    /* Issue the same ioctl again to obtain the OIDs. */
    if (ioctl(fd, ISCSI_TARGET_OID_LIST_GET, idlp) != 0) {
        free(idlp);
        (void) close(fd);
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_TARGET_OID_LIST_GET ioctl %d failed, errno: %d",
            targetListType, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    *ppList = (IMA_OID_LIST *)calloc(1, sizeof (IMA_OID_LIST) +
        idlp->tl_out_cnt * sizeof (IMA_OID));
    if (*ppList == NULL) {
        free(idlp);
        (void) close(fd);
        return (IMA_ERROR_INSUFFICIENT_MEMORY);
    }
    (*ppList)->oidCount = idlp->tl_out_cnt;

    for (i = 0; i < idlp->tl_out_cnt; i++) {

        if (targetListType == ISCSI_STATIC_TGT_OID_LIST)
            (*ppList)->oids[i].objectType =
                IMA_OBJECT_TYPE_STATIC_DISCOVERY_TARGET;
        else
            (*ppList)->oids[i].objectType = IMA_OBJECT_TYPE_TARGET;

        (*ppList)->oids[i].ownerId = pluginOwnerId;
        (*ppList)->oids[i].objectSequenceNumber = idlp->tl_oid_list[i];
    }

    free(idlp);
    (void) close(fd);
    return (IMA_STATUS_SUCCESS);
}

static IMA_STATUS get_target_lun_oid_list(
    IMA_OID * targetOid,
    iscsi_lun_list_t  **ppLunList)
{
    int         fd;
    iscsi_lun_list_t    *illp, ll_info;
    int         lun_list_size;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    (void) memset(&ll_info, 0, sizeof (ll_info));
    ll_info.ll_vers = ISCSI_INTERFACE_VERSION;
    if (targetOid == NULL) {
        /* get lun oid list for all targets */
        ll_info.ll_all_tgts = B_TRUE;
    } else {
        /* get lun oid list for single target */
        ll_info.ll_all_tgts = B_FALSE;
        ll_info.ll_tgt_oid = (uint32_t)targetOid->objectSequenceNumber;
    }
    ll_info.ll_in_cnt = 0;

    /*
     * Issue ioctl to obtain the number of target LUNs.
     */
    if (ioctl(fd, ISCSI_LUN_OID_LIST_GET, &ll_info) != 0) {
        (void) close(fd);
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_LUN_LIST_GET ioctl failed, errno: %d", errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    lun_list_size = sizeof (iscsi_lun_list_t);
    if (ll_info.ll_out_cnt > 1) {
        lun_list_size += (sizeof (iscsi_if_lun_t) *
            (ll_info.ll_out_cnt - 1));
    }

    illp = (iscsi_lun_list_t *)calloc(1, lun_list_size);
    if (illp == NULL) {
        (void) close(fd);
        return (IMA_ERROR_INSUFFICIENT_MEMORY);
    }
    illp->ll_vers = ISCSI_INTERFACE_VERSION;
    illp->ll_all_tgts = ll_info.ll_all_tgts;
    illp->ll_tgt_oid = ll_info.ll_tgt_oid;
    illp->ll_in_cnt = ll_info.ll_out_cnt;

    /* Issue the same ioctl again to get the target LUN list */
    if (ioctl(fd, ISCSI_LUN_OID_LIST_GET, illp) != 0) {
        free(illp);
        (void) close(fd);
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_LUN_LIST_GET ioctl failed, errno: %d", errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    *ppLunList = illp;

    (void) close(fd);
    return (IMA_STATUS_SUCCESS);
}


/* A helper function to set authentication method. */
static IMA_STATUS
setAuthMethods(
    IMA_OID oid,
    IMA_UINT *pMethodCount,
    const IMA_AUTHMETHOD *pMethodList
)
{
    int fd;
    int i;
    iscsi_auth_props_t auth;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }
    (void) memset(&auth, 0, sizeof (iscsi_auth_props_t));
    auth.a_vers = ISCSI_INTERFACE_VERSION;
    auth.a_oid = (uint32_t)oid.objectSequenceNumber;
    /* First do a get because other data fields may exist */
    if (ioctl(fd, ISCSI_AUTH_GET, &auth) != 0) {
        /* EMPTY */
        /* It is fine if there is no other data fields. */
    }
    auth.a_auth_method = authMethodNone;

    for (i = 0; i < *pMethodCount; i++) {
        switch (pMethodList[i]) {
            case IMA_AUTHMETHOD_CHAP:
                auth.a_auth_method |= authMethodCHAP;
                break;
            default:
                break;
        }
    }

    if (ioctl(fd, ISCSI_AUTH_SET, &auth) != 0) {
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_AUTH_SET failed, errno: %d", errno);
        (void) close(fd);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    (void) close(fd);
    return (IMA_STATUS_SUCCESS);
}

/* A helper function to get authentication method. */
static IMA_STATUS
getAuthMethods(
    IMA_OID oid,
    IMA_UINT    *pMethodCount,
    IMA_AUTHMETHOD *pMethodList
)
{
    int fd, i;
    iscsi_auth_props_t auth;

    if (pMethodList == NULL) {
        *pMethodCount = 0;
        return (IMA_STATUS_SUCCESS);
    }

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    (void) memset(&auth, 0, sizeof (iscsi_auth_props_t));
    auth.a_vers = ISCSI_INTERFACE_VERSION;
    auth.a_oid = (uint32_t)oid.objectSequenceNumber;

    if (ioctl(fd, ISCSI_AUTH_GET, &auth) != 0) {
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_AUTH_GET failed, errno: %d", errno);
        (void) close(fd);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    i = 0;
    if (auth.a_auth_method == IMA_AUTHMETHOD_NONE) {
        pMethodList[i++] = IMA_AUTHMETHOD_NONE;
    } else if (auth.a_auth_method & authMethodCHAP) {
        pMethodList[i++] = IMA_AUTHMETHOD_CHAP;
    }
    *pMethodCount = i;

    (void) close(fd);
    return (IMA_STATUS_SUCCESS);
}

IMA_API IMA_STATUS IMA_GetPhbaOidList(
        IMA_OID_LIST **ppList
)
{
    *ppList = (IMA_OID_LIST*)calloc(1, sizeof (IMA_OID_LIST));
    if (*ppList == NULL) {
        return (IMA_ERROR_INSUFFICIENT_MEMORY);
    }
    (*ppList)->oidCount = 0;
    return (IMA_STATUS_SUCCESS);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_GetPhbaProperties(
        IMA_OID phbaOid,
        IMA_PHBA_PROPERTIES *pProps
)
{
    return (IMA_ERROR_OBJECT_NOT_FOUND);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_GetPhbaStatus(
        IMA_OID phbaOid,
        IMA_PHBA_STATUS *pStatus
)
{
    return (IMA_ERROR_OBJECT_NOT_FOUND);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_GetPhbaDownloadProperties(
        IMA_OID phbaOid,
        IMA_PHBA_DOWNLOAD_PROPERTIES *pProps
)
{
    return (IMA_ERROR_OBJECT_NOT_FOUND);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_IsPhbaDownloadFile(
        IMA_OID phbaOid,
        const IMA_WCHAR *pFileName,
        IMA_PHBA_DOWNLOAD_IMAGE_PROPERTIES *pProps
)
{
    return (IMA_ERROR_OBJECT_NOT_FOUND);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_PhbaDownload(
        IMA_OID phbaOid,
        IMA_PHBA_DOWNLOAD_IMAGE_TYPE imageType,
        const IMA_WCHAR *pFileName
)
{
    return (IMA_ERROR_OBJECT_NOT_FOUND);
}

IMA_API IMA_STATUS IMA_GetPnpOidList(
        IMA_OID pnpOid,
        IMA_OID_LIST **ppList
)
{
    /*
     * Always return the same object ID for the pnp as the spec
     * states that this function will always return a list of at least
     * one element
     */
    pnpOid.objectType = IMA_OBJECT_TYPE_PNP;
    pnpOid.ownerId = pluginOwnerId;
    pnpOid.objectSequenceNumber = ISCSI_INITIATOR_OID;

    *ppList = (IMA_OID_LIST*)calloc(1, sizeof (IMA_OID_LIST) +
        (1* sizeof (IMA_OID)));

    if (*ppList == NULL) {
        return (IMA_ERROR_INSUFFICIENT_MEMORY);
    }

    (*ppList)->oidCount = 1;
    (void) memcpy(&(*ppList)->oids[0], &pnpOid, sizeof (pnpOid));
    return (IMA_STATUS_SUCCESS);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_GetPnpProperties(
        IMA_OID pnpOid,
        IMA_PNP_PROPERTIES *pProps
)
{
    return (IMA_ERROR_OBJECT_NOT_FOUND);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_GetPnpStatistics(
        IMA_OID pnpOid,
        IMA_PNP_STATISTICS *pStats
)
{
    return (IMA_ERROR_OBJECT_NOT_FOUND);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_GetIpProperties(
        IMA_OID oid,
        IMA_IP_PROPERTIES *pProps
)
{
    return (IMA_ERROR_OBJECT_NOT_FOUND);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_SetDefaultGateway(
        IMA_OID oid,
        IMA_IP_ADDRESS defaultGateway
)
{
    return (IMA_ERROR_OBJECT_NOT_FOUND);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_SetDnsServerAddress(
        IMA_OID oid,
        const IMA_IP_ADDRESS *pPrimaryDnsServerAddress,
        const IMA_IP_ADDRESS *pAlternateDnsServerAddress
)
{
    return (IMA_ERROR_OBJECT_NOT_FOUND);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_SetSubnetMask(
        IMA_OID oid,
        IMA_IP_ADDRESS subnetMask
)
{
    return (IMA_ERROR_OBJECT_NOT_FOUND);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_SetIpConfigMethod(
        IMA_OID oid,
        IMA_BOOL enableDhcpIpConfiguration
)
{
    return (IMA_ERROR_OBJECT_NOT_FOUND);
}

IMA_API IMA_STATUS IMA_RegisterForObjectPropertyChanges(
        IMA_OBJECT_PROPERTY_FN pClientFn
)
{
    pObjectPropertyCallback = pClientFn;
    return (IMA_STATUS_SUCCESS);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_DeregisterForObjectPropertyChanges(
        IMA_OBJECT_PROPERTY_FN pClientFn
)
{
    return (IMA_STATUS_SUCCESS);
}

IMA_API IMA_STATUS IMA_RegisterForObjectVisibilityChanges(
        IMA_OBJECT_VISIBILITY_FN pClientFn
)
{
    pObjectVisibilityCallback = pClientFn;
    return (IMA_STATUS_SUCCESS);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_DeregisterForObjectVisibilityChanges(
        IMA_OBJECT_VISIBILITY_FN pClientFn
)
{
    return (IMA_STATUS_SUCCESS);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_GetNetworkPortStatus(
        IMA_OID portOid,
        IMA_NETWORK_PORT_STATUS *pStaus
)
{
    return (IMA_ERROR_OBJECT_NOT_FOUND);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_GetNetworkPortalOidList(
        IMA_OID pnpOid,
        IMA_OID_LIST **ppList
)
{
    return (IMA_ERROR_OBJECT_NOT_FOUND);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_GetNetworkPortalProperties(
        IMA_OID networkPortalOid,
        IMA_NETWORK_PORTAL_PROPERTIES *pProps
)
{
    return (IMA_ERROR_OBJECT_NOT_FOUND);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_SetNetworkPortalIpAddress(
        IMA_OID networkPortalOid,
        const IMA_IP_ADDRESS NewIpAddress
)
{
    return (IMA_ERROR_OBJECT_NOT_FOUND);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_RemoveStaleData(
        IMA_OID lhbaOid
)
{
    return (IMA_ERROR_NOT_SUPPORTED);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_GetIpsecProperties(
        IMA_OID oid,
        IMA_IPSEC_PROPERTIES *pProps
)
{
    pProps->ipsecSupported = IMA_TRUE;
    pProps->implementedInHardware = IMA_FALSE;
    pProps->implementedInSoftware = IMA_TRUE;

    return (IMA_STATUS_SUCCESS);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_GetLhbaProperties(
        IMA_OID lhbaOid,
        IMA_LHBA_PROPERTIES *pProps
)
{

    if (pProps == NULL) {
        return (IMA_ERROR_INVALID_PARAMETER);
    }

    if (lhbaObjectId.objectSequenceNumber != ISCSI_INITIATOR_OID) {
        return (IMA_ERROR_OBJECT_NOT_FOUND);
    }

    (void) memset(pProps, 0, sizeof (IMA_LHBA_PROPERTIES));
    (void) mbstowcs(pProps->osDeviceName, OS_DEVICE_NAME,
        OS_DEVICE_NAME_LEN);
    pProps->luExposingSupported = IMA_FALSE;
    pProps->isDestroyable = IMA_FALSE;
    pProps->staleDataRemovable = IMA_FALSE;
    pProps->staleDataSize = 0;
    pProps->initiatorAuthMethodsSettable = IMA_TRUE;
    pProps->targetAuthMethodsSettable = IMA_FALSE;

    return (IMA_STATUS_SUCCESS);
}

IMA_API IMA_STATUS IMA_GetLnpOidList(
        IMA_OID_LIST **ppList
)
{
    *ppList = (IMA_OID_LIST *) calloc(1, (sizeof (IMA_OID_LIST)));
    if (*ppList == NULL) {
        return (IMA_ERROR_INSUFFICIENT_MEMORY);
    }
    (*ppList)->oidCount = 0;

    return (IMA_STATUS_SUCCESS);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_GetLnpProperties(
        IMA_OID lnpOid,
        IMA_LNP_PROPERTIES *pProps
)
{
    return (IMA_ERROR_OBJECT_NOT_FOUND);
}

#define IMA_DISK_DEVICE_NAME_PREFIX "/dev/rdsk/"
#define IMA_TAPE_DEVICE_NAME_PREFIX "/dev/rmt/"
static int
get_lun_devlink(di_devlink_t link, void *osDeviceName)
{
    if ((strncmp(IMA_DISK_DEVICE_NAME_PREFIX, di_devlink_path(link),
        strlen(IMA_DISK_DEVICE_NAME_PREFIX)) == 0) ||
        (strncmp(IMA_TAPE_DEVICE_NAME_PREFIX, di_devlink_path(link),
        strlen(IMA_TAPE_DEVICE_NAME_PREFIX)) == 0)) {
        (void) mbstowcs((wchar_t *)osDeviceName, di_devlink_path(link),
            MAXPATHLEN);
        return (DI_WALK_TERMINATE);
    }

    return (DI_WALK_CONTINUE);
}

/* ARGSUSED */
IMA_API IMA_STATUS IMA_GetPluginProperties(
    IMA_OID pluginOid,
    IMA_PLUGIN_PROPERTIES *pProps
)
{
    pProps->supportedImaVersion = 1;
    libSwprintf(pProps->vendor, L"%ls", LIBRARY_PROPERTY_VENDOR);
    libSwprintf(pProps->implementationVersion, L"%ls",
        LIBRARY_PROPERTY_IMPLEMENTATION_VERSION);
    libSwprintf(pProps->fileName, L"%ls", LIBRARY_FILE_NAME);
    GetBuildTime(&(pProps->buildTime));
    pProps->lhbasCanBeCreatedAndDestroyed = IMA_FALSE;
    return (IMA_STATUS_SUCCESS);
}

IMA_STATUS getDiscoveryAddressPropertiesList(
    SUN_IMA_DISC_ADDR_PROP_LIST **ppList
)
{
    int         fd;
    int         i;
    int         discovery_addr_list_size;
    iscsi_addr_list_t   *ialp, al_info;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    (void) memset(&al_info, 0, sizeof (al_info));
    al_info.al_vers = ISCSI_INTERFACE_VERSION;
    al_info.al_in_cnt = 0;

    /*
     * Issue ISCSI_DISCOVERY_ADDR_LIST_GET ioctl to obtain the number of
     * discovery addresses.
     */
    if (ioctl(fd, ISCSI_DISCOVERY_ADDR_LIST_GET, &al_info) != 0) {
        (void) close(fd);
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_DISCOVERY_ADDR_LIST_GET ioctl failed, errno: %d",
            errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    discovery_addr_list_size = sizeof (iscsi_addr_list_t);
    if (al_info.al_out_cnt > 1) {
        discovery_addr_list_size += (sizeof (iscsi_addr_t) *
            al_info.al_out_cnt - 1);
    }

    ialp = (iscsi_addr_list_t *)calloc(1, discovery_addr_list_size);
    if (ialp == NULL) {
        (void) close(fd);
        return (IMA_ERROR_INSUFFICIENT_MEMORY);
    }
    ialp->al_vers = ISCSI_INTERFACE_VERSION;
    ialp->al_in_cnt = al_info.al_out_cnt;

    /*
     * Issue ISCSI_DISCOVERY_ADDR_LIST_GET ioctl again to obtain the
     * discovery addresses.
     */
    if (ioctl(fd, ISCSI_DISCOVERY_ADDR_LIST_GET, ialp) != 0) {
        free(ialp);
        (void) close(fd);
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_DISCOVERY_ADDR_LIST_GET ioctl failed, errno: %d",
            errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    *ppList = (SUN_IMA_DISC_ADDR_PROP_LIST *)
        calloc(1, sizeof (SUN_IMA_DISC_ADDR_PROP_LIST) +
        ialp->al_out_cnt * sizeof (IMA_DISCOVERY_ADDRESS_PROPERTIES));

    if (*ppList == NULL) {
        free(ialp);
        (void) close(fd);
        return (IMA_ERROR_INSUFFICIENT_MEMORY);
    }
    (*ppList)->discAddrCount = ialp->al_out_cnt;

    for (i = 0; i < ialp->al_out_cnt; i++) {
        if (ialp->al_addrs[i].a_addr.i_insize ==
            sizeof (struct in_addr)) {
            (*ppList)->props[i].discoveryAddress.hostnameIpAddress.
            id.ipAddress.ipv4Address = IMA_TRUE;
        } else if (ialp->al_addrs[i].a_addr.i_insize ==
            sizeof (struct in6_addr)) {
            (*ppList)->props[i].discoveryAddress.
            hostnameIpAddress.id.ipAddress.ipv4Address = IMA_FALSE;
        } else {
            /* Should not happen */
            syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_STATIC_GET returned bad address");
            return (IMA_ERROR_UNEXPECTED_OS_ERROR);
        }

        bcopy(&ialp->al_addrs[i].a_addr.i_addr, (*ppList)->props[i].
            discoveryAddress.hostnameIpAddress.id.ipAddress.ipAddress,
            sizeof ((*ppList)->props[i].discoveryAddress.
            hostnameIpAddress.id.ipAddress.ipAddress));

        (*ppList)->props[i].discoveryAddress.portNumber =
            ialp->al_addrs[i].a_port;
    }

    free(ialp);
    (void) close(fd);
    return (IMA_STATUS_SUCCESS);
}


/* ARGSUSED */
IMA_STATUS sendTargets(
    IMA_TARGET_ADDRESS address,
    SUN_IMA_DISC_ADDRESS_KEY_PROPERTIES **ppList
)
{
    char    *colonPos;
    char    discAddrStr[SUN_IMA_IP_ADDRESS_LEN];
    int fd;
    int ctr;
    int stl_sz;
    iscsi_sendtgts_list_t   *stl_hdr = NULL;
    IMA_BOOL        retry = IMA_TRUE;

#define SENDTGTS_DEFAULT_NUM_TARGETS    10

    stl_sz = sizeof (*stl_hdr) + ((SENDTGTS_DEFAULT_NUM_TARGETS - 1) *
        sizeof (iscsi_sendtgts_entry_t));
    stl_hdr = (iscsi_sendtgts_list_t *)calloc(1, stl_sz);
    if (stl_hdr == NULL) {
        return (IMA_ERROR_INSUFFICIENT_MEMORY);
    }
    stl_hdr->stl_entry.e_vers = ISCSI_INTERFACE_VERSION;
    stl_hdr->stl_in_cnt = SENDTGTS_DEFAULT_NUM_TARGETS;

    colonPos = strchr(discAddrStr, ':');
    if (colonPos == NULL) {
        /* IPv4 */
        stl_hdr->stl_entry.e_insize = sizeof (struct in_addr);
    } else {
        /* IPv6 */
        stl_hdr->stl_entry.e_insize = sizeof (struct in6_addr);
    }


    bcopy(address.hostnameIpAddress.id.ipAddress.ipAddress,
        &stl_hdr->stl_entry.e_u,
        sizeof (address.hostnameIpAddress.id.ipAddress.ipAddress));
    stl_hdr->stl_entry.e_port = address.portNumber;

    if ((fd = open(ISCSI_DRIVER_DEVCTL, O_RDONLY)) == -1) {
        syslog(LOG_USER|LOG_DEBUG, "Cannot open %s (%d)",
            ISCSI_DRIVER_DEVCTL, errno);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

retry_sendtgts:
    /*
     * Issue ioctl to obtain the SendTargets list
     */
    if (ioctl(fd, ISCSI_SENDTGTS_GET, stl_hdr) != 0) {
        syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_SENDTGTS_GET ioctl failed, errno: %d", errno);
        (void) close(fd);
        free(stl_hdr);
        return (IMA_ERROR_UNEXPECTED_OS_ERROR);
    }

    /* check if all targets received */
    if (stl_hdr->stl_in_cnt < stl_hdr->stl_out_cnt) {
        if (retry == IMA_TRUE) {
            stl_sz = sizeof (*stl_hdr) +
                ((stl_hdr->stl_out_cnt - 1) *
                sizeof (iscsi_sendtgts_entry_t));
            stl_hdr = (iscsi_sendtgts_list_t *)
                realloc(stl_hdr, stl_sz);
            if (stl_hdr == NULL) {
                (void) close(fd);
                return (IMA_ERROR_INSUFFICIENT_MEMORY);
            }
            stl_hdr->stl_in_cnt = stl_hdr->stl_out_cnt;
            retry = IMA_FALSE;
            goto retry_sendtgts;
        } else {
            /*
             * don't retry after 2 attempts.  The target list
             * shouldn't continue to growing. Justs continue
             * on and display what was found.
             */
            syslog(LOG_USER|LOG_DEBUG,
                "ISCSI_SENDTGTS_GET overflow: "
                "failed to obtain all targets");
            stl_hdr->stl_out_cnt = stl_hdr->stl_in_cnt;
        }
    }

    (void) close(fd);

    /* allocate for caller return buffer */
    *ppList = (SUN_IMA_DISC_ADDRESS_KEY_PROPERTIES *)calloc(1,
        sizeof (SUN_IMA_DISC_ADDRESS_KEY_PROPERTIES) +
        stl_hdr->stl_out_cnt * sizeof (SUN_IMA_DISC_ADDRESS_KEY));
    if (*ppList == NULL) {
        free(stl_hdr);
        return (IMA_ERROR_INSUFFICIENT_MEMORY);
    }

    (*ppList)->keyCount = stl_hdr->stl_out_cnt;

    for (ctr = 0; ctr < stl_hdr->stl_out_cnt; ctr++) {
        (void) mbstowcs((*ppList)->keys[ctr].name,
            (char *)stl_hdr->stl_list[ctr].ste_name,
            IMA_NODE_NAME_LEN);

        (*ppList)->keys[ctr].tpgt = stl_hdr->stl_list[ctr].ste_tpgt;

        (*ppList)->keys[ctr].address.portNumber =
            stl_hdr->stl_list[ctr].ste_ipaddr.a_port;

        if (stl_hdr->stl_list[ctr].ste_ipaddr.a_addr.i_insize ==
            sizeof (struct in_addr)) {
            (*ppList)->keys[ctr].address.ipAddress.ipv4Address =
                IMA_TRUE;
        } else if (stl_hdr->stl_list[ctr].ste_ipaddr.a_addr.i_insize ==
            sizeof (struct in6_addr)) {
            (*ppList)->keys[ctr].address.ipAddress.ipv4Address =
                IMA_FALSE;
        } else {
            free(stl_hdr);
            syslog(LOG_USER|LOG_DEBUG,
            "ISCSI_STATIC_GET returned bad address");
            return (IMA_ERROR_UNEXPECTED_OS_ERROR);
        }


        (void) memcpy(&(*ppList)->keys[ctr].address.ipAddress.ipAddress,
            &(stl_hdr->stl_list[ctr].ste_ipaddr.a_addr.i_addr),
            stl_hdr->stl_list[ctr].ste_ipaddr.a_addr.i_insize);
    }
    free(stl_hdr);

    return (IMA_STATUS_SUCCESS);
}