/*
 * GPL HEADER START
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 only,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License version 2 for more details (a copy is included
 * in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU General Public License
 * version 2 along with this program; If not, see
 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 *
 * GPL HEADER END
 */
/*
 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
 * Use is subject to license terms.
 *
 * Copyright (c) 2012, Intel Corporation.
 */
/*
 * This file is part of Lustre, http://www.lustre.org/
 * Lustre is a trademark of Sun Microsystems, Inc.
 *
 * lnet/selftest/conctl.c
 *
 * IOC handle in kernel
 *
 * Author: Liang Zhen <liangzhen@clusterfs.com>
 */

#include <linux/libcfs/libcfs.h>
#include <linux/lnet/lib-lnet.h>
#include <linux/lnet/lnetst.h>
#include "console.h"

int
lst_session_new_ioctl(lstio_session_new_args_t *args)
{
        char      *name;
        int     rc;

        if (args->lstio_ses_idp   == NULL || /* address for output sid */
            args->lstio_ses_key   == 0 || /* no key is specified */
            args->lstio_ses_namep == NULL || /* session name */
            args->lstio_ses_nmlen <= 0 ||
            args->lstio_ses_nmlen > LST_NAME_SIZE)
                return -EINVAL;

        LIBCFS_ALLOC(name, args->lstio_ses_nmlen + 1);
        if (name == NULL)
                return -ENOMEM;

        if (copy_from_user(name,
                               args->lstio_ses_namep,
                               args->lstio_ses_nmlen)) {
                LIBCFS_FREE(name, args->lstio_ses_nmlen + 1);
                return -EFAULT;
        }

        name[args->lstio_ses_nmlen] = 0;

        rc = lstcon_session_new(name,
                                args->lstio_ses_key,
                                args->lstio_ses_feats,
                                args->lstio_ses_force,
                                args->lstio_ses_timeout,
                                args->lstio_ses_idp);

        LIBCFS_FREE(name, args->lstio_ses_nmlen + 1);
        return rc;
}

int
lst_session_end_ioctl(lstio_session_end_args_t *args)
{
        if (args->lstio_ses_key != console_session.ses_key)
                return -EACCES;

        return lstcon_session_end();
}

int
lst_session_info_ioctl(lstio_session_info_args_t *args)
{
        /* no checking of key */

        if (args->lstio_ses_idp   == NULL || /* address for output sid */
            args->lstio_ses_keyp  == NULL || /* address for output key */
            args->lstio_ses_featp  == NULL || /* address for output features */
            args->lstio_ses_ndinfo == NULL || /* address for output ndinfo */
            args->lstio_ses_namep == NULL || /* address for output name */
            args->lstio_ses_nmlen <= 0 ||
            args->lstio_ses_nmlen > LST_NAME_SIZE)
                return -EINVAL;

        return lstcon_session_info(args->lstio_ses_idp,
                                   args->lstio_ses_keyp,
                                   args->lstio_ses_featp,
                                   args->lstio_ses_ndinfo,
                                   args->lstio_ses_namep,
                                   args->lstio_ses_nmlen);
}

int
lst_debug_ioctl(lstio_debug_args_t *args)
{
        char   *name   = NULL;
        int     client = 1;
        int     rc;

        if (args->lstio_dbg_key != console_session.ses_key)
                return -EACCES;

        if (args->lstio_dbg_resultp == NULL)
                return -EINVAL;

        if (args->lstio_dbg_namep != NULL && /* name of batch/group */
            (args->lstio_dbg_nmlen <= 0 ||
             args->lstio_dbg_nmlen > LST_NAME_SIZE))
                return -EINVAL;

        if (args->lstio_dbg_namep != NULL) {
                LIBCFS_ALLOC(name, args->lstio_dbg_nmlen + 1);
                if (name == NULL)
                        return -ENOMEM;

                if (copy_from_user(name, args->lstio_dbg_namep,
                                       args->lstio_dbg_nmlen)) {
                        LIBCFS_FREE(name, args->lstio_dbg_nmlen + 1);

                        return -EFAULT;
                }

                name[args->lstio_dbg_nmlen] = 0;
        }

        rc = -EINVAL;

        switch (args->lstio_dbg_type) {
        case LST_OPC_SESSION:
                rc = lstcon_session_debug(args->lstio_dbg_timeout,
                                          args->lstio_dbg_resultp);
                break;

        case LST_OPC_BATCHSRV:
                client = 0;
        case LST_OPC_BATCHCLI:
                if (name == NULL)
                        goto out;

                rc = lstcon_batch_debug(args->lstio_dbg_timeout,
                                        name, client, args->lstio_dbg_resultp);
                break;

        case LST_OPC_GROUP:
                if (name == NULL)
                        goto out;

                rc = lstcon_group_debug(args->lstio_dbg_timeout,
                                        name, args->lstio_dbg_resultp);
                break;

        case LST_OPC_NODES:
                if (args->lstio_dbg_count <= 0 ||
                    args->lstio_dbg_idsp == NULL)
                        goto out;

                rc = lstcon_nodes_debug(args->lstio_dbg_timeout,
                                        args->lstio_dbg_count,
                                        args->lstio_dbg_idsp,
                                        args->lstio_dbg_resultp);
                break;

        default:
                break;
        }

out:
        if (name != NULL)
                LIBCFS_FREE(name, args->lstio_dbg_nmlen + 1);

        return rc;
}

int
lst_group_add_ioctl(lstio_group_add_args_t *args)
{
        char       *name;
        int          rc;

        if (args->lstio_grp_key != console_session.ses_key)
                return -EACCES;

        if (args->lstio_grp_namep == NULL||
            args->lstio_grp_nmlen <= 0 ||
            args->lstio_grp_nmlen > LST_NAME_SIZE)
                return -EINVAL;

        LIBCFS_ALLOC(name, args->lstio_grp_nmlen + 1);
        if (name == NULL)
                return -ENOMEM;

        if (copy_from_user(name,
                               args->lstio_grp_namep,
                               args->lstio_grp_nmlen)) {
                LIBCFS_FREE(name, args->lstio_grp_nmlen);
                return -EFAULT;
        }

        name[args->lstio_grp_nmlen] = 0;

        rc = lstcon_group_add(name);

        LIBCFS_FREE(name, args->lstio_grp_nmlen + 1);

        return rc;
}

int
lst_group_del_ioctl(lstio_group_del_args_t *args)
{
        int     rc;
        char   *name;

        if (args->lstio_grp_key != console_session.ses_key)
                return -EACCES;

        if (args->lstio_grp_namep == NULL ||
            args->lstio_grp_nmlen <= 0 ||
            args->lstio_grp_nmlen > LST_NAME_SIZE)
                return -EINVAL;

        LIBCFS_ALLOC(name, args->lstio_grp_nmlen + 1);
        if (name == NULL)
                return -ENOMEM;

        if (copy_from_user(name,
                               args->lstio_grp_namep,
                               args->lstio_grp_nmlen)) {
                LIBCFS_FREE(name, args->lstio_grp_nmlen + 1);
                return -EFAULT;
        }

        name[args->lstio_grp_nmlen] = 0;

        rc = lstcon_group_del(name);

        LIBCFS_FREE(name, args->lstio_grp_nmlen + 1);

        return rc;
}

int
lst_group_update_ioctl(lstio_group_update_args_t *args)
{
        int     rc;
        char   *name;

        if (args->lstio_grp_key != console_session.ses_key)
                return -EACCES;

        if (args->lstio_grp_resultp == NULL ||
            args->lstio_grp_namep == NULL ||
            args->lstio_grp_nmlen <= 0 ||
            args->lstio_grp_nmlen > LST_NAME_SIZE)
                return -EINVAL;

        LIBCFS_ALLOC(name, args->lstio_grp_nmlen + 1);
        if (name == NULL)
                return -ENOMEM;

        if (copy_from_user(name,
                           args->lstio_grp_namep,
                           args->lstio_grp_nmlen)) {
                LIBCFS_FREE(name, args->lstio_grp_nmlen + 1);
                return -EFAULT;
        }

        name[args->lstio_grp_nmlen] = 0;

        switch (args->lstio_grp_opc) {
        case LST_GROUP_CLEAN:
                rc = lstcon_group_clean(name, args->lstio_grp_args);
                break;

        case LST_GROUP_REFRESH:
                rc = lstcon_group_refresh(name, args->lstio_grp_resultp);
                break;

        case LST_GROUP_RMND:
                if (args->lstio_grp_count  <= 0 ||
                    args->lstio_grp_idsp == NULL) {
                        rc = -EINVAL;
                        break;
                }
                rc = lstcon_nodes_remove(name, args->lstio_grp_count,
                                         args->lstio_grp_idsp,
                                         args->lstio_grp_resultp);
                break;

        default:
                rc = -EINVAL;
                break;
        }

        LIBCFS_FREE(name, args->lstio_grp_nmlen + 1);

        return rc;
}

int
lst_nodes_add_ioctl(lstio_group_nodes_args_t *args)
{
        unsigned feats;
        int     rc;
        char   *name;

        if (args->lstio_grp_key != console_session.ses_key)
                return -EACCES;

        if (args->lstio_grp_idsp == NULL || /* array of ids */
            args->lstio_grp_count <= 0 ||
            args->lstio_grp_resultp == NULL ||
            args->lstio_grp_featp == NULL ||
            args->lstio_grp_namep == NULL ||
            args->lstio_grp_nmlen <= 0 ||
            args->lstio_grp_nmlen > LST_NAME_SIZE)
                return -EINVAL;

        LIBCFS_ALLOC(name, args->lstio_grp_nmlen + 1);
        if (name == NULL)
                return -ENOMEM;

        if (copy_from_user(name, args->lstio_grp_namep,
                               args->lstio_grp_nmlen)) {
                LIBCFS_FREE(name, args->lstio_grp_nmlen + 1);

                return -EFAULT;
        }

        name[args->lstio_grp_nmlen] = 0;

        rc = lstcon_nodes_add(name, args->lstio_grp_count,
                              args->lstio_grp_idsp, &feats,
                              args->lstio_grp_resultp);

        LIBCFS_FREE(name, args->lstio_grp_nmlen + 1);
        if (rc == 0 &&
            copy_to_user(args->lstio_grp_featp, &feats, sizeof(feats))) {
                return -EINVAL;
        }

        return rc;
}

int
lst_group_list_ioctl(lstio_group_list_args_t *args)
{
        if (args->lstio_grp_key != console_session.ses_key)
                return -EACCES;

        if (args->lstio_grp_idx   < 0 ||
            args->lstio_grp_namep == NULL ||
            args->lstio_grp_nmlen <= 0 ||
            args->lstio_grp_nmlen > LST_NAME_SIZE)
                return -EINVAL;

        return lstcon_group_list(args->lstio_grp_idx,
                              args->lstio_grp_nmlen,
                              args->lstio_grp_namep);
}

int
lst_group_info_ioctl(lstio_group_info_args_t *args)
{
        char       *name;
        int          ndent;
        int          index;
        int          rc;

        if (args->lstio_grp_key != console_session.ses_key)
                return -EACCES;

        if (args->lstio_grp_namep == NULL ||
            args->lstio_grp_nmlen <= 0 ||
            args->lstio_grp_nmlen > LST_NAME_SIZE)
                return -EINVAL;

        if (args->lstio_grp_entp  == NULL && /* output: group entry */
            args->lstio_grp_dentsp == NULL)  /* output: node entry */
                return -EINVAL;

        if (args->lstio_grp_dentsp != NULL) { /* have node entry */
                if (args->lstio_grp_idxp == NULL || /* node index */
                    args->lstio_grp_ndentp == NULL) /* # of node entry */
                        return -EINVAL;

                if (copy_from_user(&ndent, args->lstio_grp_ndentp,
                                       sizeof(ndent)) ||
                    copy_from_user(&index, args->lstio_grp_idxp,
                                       sizeof(index)))
                        return -EFAULT;

                if (ndent <= 0 || index < 0)
                        return -EINVAL;
        }

        LIBCFS_ALLOC(name, args->lstio_grp_nmlen + 1);
        if (name == NULL)
                return -ENOMEM;

        if (copy_from_user(name,
                               args->lstio_grp_namep,
                               args->lstio_grp_nmlen)) {
                LIBCFS_FREE(name, args->lstio_grp_nmlen + 1);
                return -EFAULT;
        }

        name[args->lstio_grp_nmlen] = 0;

        rc = lstcon_group_info(name, args->lstio_grp_entp,
                               &index, &ndent, args->lstio_grp_dentsp);

        LIBCFS_FREE(name, args->lstio_grp_nmlen + 1);

        if (rc != 0)
                return rc;

        if (args->lstio_grp_dentsp != NULL &&
            (copy_to_user(args->lstio_grp_idxp, &index, sizeof(index)) ||
             copy_to_user(args->lstio_grp_ndentp, &ndent, sizeof(ndent))))
                rc = -EFAULT;

        return 0;
}

int
lst_batch_add_ioctl(lstio_batch_add_args_t *args)
{
        int          rc;
        char       *name;

        if (args->lstio_bat_key != console_session.ses_key)
                return -EACCES;

        if (args->lstio_bat_namep == NULL ||
            args->lstio_bat_nmlen <= 0 ||
            args->lstio_bat_nmlen > LST_NAME_SIZE)
                return -EINVAL;

        LIBCFS_ALLOC(name, args->lstio_bat_nmlen + 1);
        if (name == NULL)
                return -ENOMEM;

        if (copy_from_user(name,
                               args->lstio_bat_namep,
                               args->lstio_bat_nmlen)) {
                LIBCFS_FREE(name, args->lstio_bat_nmlen + 1);
                return -EFAULT;
        }

        name[args->lstio_bat_nmlen] = 0;

        rc = lstcon_batch_add(name);

        LIBCFS_FREE(name, args->lstio_bat_nmlen + 1);

        return rc;
}

int
lst_batch_run_ioctl(lstio_batch_run_args_t *args)
{
        int          rc;
        char       *name;

        if (args->lstio_bat_key != console_session.ses_key)
                return -EACCES;

        if (args->lstio_bat_namep == NULL ||
            args->lstio_bat_nmlen <= 0 ||
            args->lstio_bat_nmlen > LST_NAME_SIZE)
                return -EINVAL;

        LIBCFS_ALLOC(name, args->lstio_bat_nmlen + 1);
        if (name == NULL)
                return -ENOMEM;

        if (copy_from_user(name,
                               args->lstio_bat_namep,
                               args->lstio_bat_nmlen)) {
                LIBCFS_FREE(name, args->lstio_bat_nmlen + 1);
                return -EFAULT;
        }

        name[args->lstio_bat_nmlen] = 0;

        rc = lstcon_batch_run(name, args->lstio_bat_timeout,
                              args->lstio_bat_resultp);

        LIBCFS_FREE(name, args->lstio_bat_nmlen + 1);

        return rc;
}

int
lst_batch_stop_ioctl(lstio_batch_stop_args_t *args)
{
        int          rc;
        char       *name;

        if (args->lstio_bat_key != console_session.ses_key)
                return -EACCES;

        if (args->lstio_bat_resultp == NULL ||
            args->lstio_bat_namep == NULL ||
            args->lstio_bat_nmlen <= 0 ||
            args->lstio_bat_nmlen > LST_NAME_SIZE)
                return -EINVAL;

        LIBCFS_ALLOC(name, args->lstio_bat_nmlen + 1);
        if (name == NULL)
                return -ENOMEM;

        if (copy_from_user(name,
                               args->lstio_bat_namep,
                               args->lstio_bat_nmlen)) {
                LIBCFS_FREE(name, args->lstio_bat_nmlen + 1);
                return -EFAULT;
        }

        name[args->lstio_bat_nmlen] = 0;

        rc = lstcon_batch_stop(name, args->lstio_bat_force,
                               args->lstio_bat_resultp);

        LIBCFS_FREE(name, args->lstio_bat_nmlen + 1);

        return rc;
}

int
lst_batch_query_ioctl(lstio_batch_query_args_t *args)
{
        char   *name;
        int     rc;

        if (args->lstio_bat_key != console_session.ses_key)
                return -EACCES;

        if (args->lstio_bat_resultp == NULL ||
            args->lstio_bat_namep == NULL ||
            args->lstio_bat_nmlen <= 0 ||
            args->lstio_bat_nmlen > LST_NAME_SIZE)
                return -EINVAL;

        if (args->lstio_bat_testidx < 0)
                return -EINVAL;

        LIBCFS_ALLOC(name, args->lstio_bat_nmlen + 1);
        if (name == NULL)
                return -ENOMEM;

        if (copy_from_user(name,
                               args->lstio_bat_namep,
                               args->lstio_bat_nmlen)) {
                LIBCFS_FREE(name, args->lstio_bat_nmlen + 1);
                return -EFAULT;
        }

        name[args->lstio_bat_nmlen] = 0;

        rc = lstcon_test_batch_query(name,
                                     args->lstio_bat_testidx,
                                     args->lstio_bat_client,
                                     args->lstio_bat_timeout,
                                     args->lstio_bat_resultp);

        LIBCFS_FREE(name, args->lstio_bat_nmlen + 1);

        return rc;
}

int
lst_batch_list_ioctl(lstio_batch_list_args_t *args)
{
        if (args->lstio_bat_key != console_session.ses_key)
                return -EACCES;

        if (args->lstio_bat_idx   < 0 ||
            args->lstio_bat_namep == NULL ||
            args->lstio_bat_nmlen <= 0 ||
            args->lstio_bat_nmlen > LST_NAME_SIZE)
                return -EINVAL;

        return lstcon_batch_list(args->lstio_bat_idx,
                              args->lstio_bat_nmlen,
                              args->lstio_bat_namep);
}

int
lst_batch_info_ioctl(lstio_batch_info_args_t *args)
{
        char       *name;
        int          rc;
        int          index;
        int          ndent;

        if (args->lstio_bat_key != console_session.ses_key)
                return -EACCES;

        if (args->lstio_bat_namep == NULL || /* batch name */
            args->lstio_bat_nmlen <= 0 ||
            args->lstio_bat_nmlen > LST_NAME_SIZE)
                return -EINVAL;

        if (args->lstio_bat_entp == NULL && /* output: batch entry */
            args->lstio_bat_dentsp == NULL) /* output: node entry */
                return -EINVAL;

        if (args->lstio_bat_dentsp != NULL) { /* have node entry */
                if (args->lstio_bat_idxp == NULL || /* node index */
                    args->lstio_bat_ndentp == NULL) /* # of node entry */
                        return -EINVAL;

                if (copy_from_user(&index, args->lstio_bat_idxp,
                                       sizeof(index)) ||
                    copy_from_user(&ndent, args->lstio_bat_ndentp,
                                       sizeof(ndent)))
                        return -EFAULT;

                if (ndent <= 0 || index < 0)
                        return -EINVAL;
        }

        LIBCFS_ALLOC(name, args->lstio_bat_nmlen + 1);
        if (name == NULL)
                return -ENOMEM;

        if (copy_from_user(name,
                               args->lstio_bat_namep, args->lstio_bat_nmlen)) {
                LIBCFS_FREE(name, args->lstio_bat_nmlen + 1);
                return -EFAULT;
        }

        name[args->lstio_bat_nmlen] = 0;

        rc = lstcon_batch_info(name,
                            args->lstio_bat_entp, args->lstio_bat_server,
                            args->lstio_bat_testidx, &index, &ndent,
                            args->lstio_bat_dentsp);

        LIBCFS_FREE(name, args->lstio_bat_nmlen + 1);

        if (rc != 0)
                return rc;

        if (args->lstio_bat_dentsp != NULL &&
            (copy_to_user(args->lstio_bat_idxp, &index, sizeof(index)) ||
             copy_to_user(args->lstio_bat_ndentp, &ndent, sizeof(ndent))))
                rc = -EFAULT;

        return rc;
}

int
lst_stat_query_ioctl(lstio_stat_args_t *args)
{
        int          rc;
        char       *name;

        /* TODO: not finished */
        if (args->lstio_sta_key != console_session.ses_key)
                return -EACCES;

        if (args->lstio_sta_resultp == NULL ||
            (args->lstio_sta_namep  == NULL &&
             args->lstio_sta_idsp   == NULL) ||
            args->lstio_sta_nmlen <= 0 ||
            args->lstio_sta_nmlen > LST_NAME_SIZE)
                return -EINVAL;

        if (args->lstio_sta_idsp != NULL &&
            args->lstio_sta_count <= 0)
                return -EINVAL;

        LIBCFS_ALLOC(name, args->lstio_sta_nmlen + 1);
        if (name == NULL)
                return -ENOMEM;

        if (copy_from_user(name, args->lstio_sta_namep,
                               args->lstio_sta_nmlen)) {
                LIBCFS_FREE(name, args->lstio_sta_nmlen + 1);
                return -EFAULT;
        }

        if (args->lstio_sta_idsp == NULL) {
                rc = lstcon_group_stat(name, args->lstio_sta_timeout,
                                       args->lstio_sta_resultp);
        } else {
                rc = lstcon_nodes_stat(args->lstio_sta_count,
                                       args->lstio_sta_idsp,
                                       args->lstio_sta_timeout,
                                       args->lstio_sta_resultp);
        }

        LIBCFS_FREE(name, args->lstio_sta_nmlen + 1);

        return rc;
}

int lst_test_add_ioctl(lstio_test_args_t *args)
{
        char            *batch_name;
        char            *src_name = NULL;
        char            *dst_name = NULL;
        void            *param = NULL;
        int             ret = 0;
        int             rc = -ENOMEM;

        if (args->lstio_tes_resultp == NULL ||
            args->lstio_tes_retp == NULL ||
            args->lstio_tes_bat_name == NULL || /* no specified batch */
            args->lstio_tes_bat_nmlen <= 0 ||
            args->lstio_tes_bat_nmlen > LST_NAME_SIZE ||
            args->lstio_tes_sgrp_name == NULL || /* no source group */
            args->lstio_tes_sgrp_nmlen <= 0 ||
            args->lstio_tes_sgrp_nmlen > LST_NAME_SIZE ||
            args->lstio_tes_dgrp_name == NULL || /* no target group */
            args->lstio_tes_dgrp_nmlen <= 0 ||
            args->lstio_tes_dgrp_nmlen > LST_NAME_SIZE)
                return -EINVAL;

        if (args->lstio_tes_loop == 0 || /* negative is infinite */
            args->lstio_tes_concur <= 0 ||
            args->lstio_tes_dist <= 0 ||
            args->lstio_tes_span <= 0)
                return -EINVAL;

        /* have parameter, check if parameter length is valid */
        if (args->lstio_tes_param != NULL &&
            (args->lstio_tes_param_len <= 0 ||
             args->lstio_tes_param_len > PAGE_CACHE_SIZE - sizeof(lstcon_test_t)))
                return -EINVAL;

        LIBCFS_ALLOC(batch_name, args->lstio_tes_bat_nmlen + 1);
        if (batch_name == NULL)
                return rc;

        LIBCFS_ALLOC(src_name, args->lstio_tes_sgrp_nmlen + 1);
        if (src_name == NULL)
                goto out;

        LIBCFS_ALLOC(dst_name, args->lstio_tes_dgrp_nmlen + 1);
         if (dst_name == NULL)
                goto out;

        if (args->lstio_tes_param != NULL) {
                LIBCFS_ALLOC(param, args->lstio_tes_param_len);
                if (param == NULL)
                        goto out;
        }

        rc = -EFAULT;
        if (copy_from_user(batch_name, args->lstio_tes_bat_name,
                           args->lstio_tes_bat_nmlen) ||
            copy_from_user(src_name, args->lstio_tes_sgrp_name,
                           args->lstio_tes_sgrp_nmlen) ||
            copy_from_user(dst_name, args->lstio_tes_dgrp_name,
                           args->lstio_tes_dgrp_nmlen) ||
            copy_from_user(param, args->lstio_tes_param,
                              args->lstio_tes_param_len))
                goto out;

        rc = lstcon_test_add(batch_name,
                            args->lstio_tes_type,
                            args->lstio_tes_loop,
                            args->lstio_tes_concur,
                            args->lstio_tes_dist, args->lstio_tes_span,
                            src_name, dst_name, param,
                            args->lstio_tes_param_len,
                            &ret, args->lstio_tes_resultp);

        if (ret != 0)
                rc = (copy_to_user(args->lstio_tes_retp, &ret,
                                       sizeof(ret))) ? -EFAULT : 0;
out:
        if (batch_name != NULL)
                LIBCFS_FREE(batch_name, args->lstio_tes_bat_nmlen + 1);

        if (src_name != NULL)
                LIBCFS_FREE(src_name, args->lstio_tes_sgrp_nmlen + 1);

        if (dst_name != NULL)
                LIBCFS_FREE(dst_name, args->lstio_tes_dgrp_nmlen + 1);

        if (param != NULL)
                LIBCFS_FREE(param, args->lstio_tes_param_len);

        return rc;
}

int
lstcon_ioctl_entry(unsigned int cmd, struct libcfs_ioctl_data *data)
{
        char   *buf;
        int     opc = data->ioc_u32[0];
        int     rc;

        if (cmd != IOC_LIBCFS_LNETST)
                return -EINVAL;

        if (data->ioc_plen1 > PAGE_CACHE_SIZE)
                return -EINVAL;

        LIBCFS_ALLOC(buf, data->ioc_plen1);
        if (buf == NULL)
                return -ENOMEM;

        /* copy in parameter */
        if (copy_from_user(buf, data->ioc_pbuf1, data->ioc_plen1)) {
                LIBCFS_FREE(buf, data->ioc_plen1);
                return -EFAULT;
        }

        mutex_lock(&console_session.ses_mutex);

        console_session.ses_laststamp = cfs_time_current_sec();

        if (console_session.ses_shutdown) {
                rc = -ESHUTDOWN;
                goto out;
        }

        if (console_session.ses_expired)
                lstcon_session_end();

        if (opc != LSTIO_SESSION_NEW &&
            console_session.ses_state == LST_SESSION_NONE) {
                CDEBUG(D_NET, "LST no active session\n");
                rc = -ESRCH;
                goto out;
        }

        memset(&console_session.ses_trans_stat, 0, sizeof(lstcon_trans_stat_t));

        switch (opc) {
                case LSTIO_SESSION_NEW:
                        rc = lst_session_new_ioctl((lstio_session_new_args_t *)buf);
                        break;
                case LSTIO_SESSION_END:
                        rc = lst_session_end_ioctl((lstio_session_end_args_t *)buf);
                        break;
                case LSTIO_SESSION_INFO:
                        rc = lst_session_info_ioctl((lstio_session_info_args_t *)buf);
                        break;
                case LSTIO_DEBUG:
                        rc = lst_debug_ioctl((lstio_debug_args_t *)buf);
                        break;
                case LSTIO_GROUP_ADD:
                        rc = lst_group_add_ioctl((lstio_group_add_args_t *)buf);
                        break;
                case LSTIO_GROUP_DEL:
                        rc = lst_group_del_ioctl((lstio_group_del_args_t *)buf);
                        break;
                case LSTIO_GROUP_UPDATE:
                        rc = lst_group_update_ioctl((lstio_group_update_args_t *)buf);
                        break;
                case LSTIO_NODES_ADD:
                        rc = lst_nodes_add_ioctl((lstio_group_nodes_args_t *)buf);
                        break;
                case LSTIO_GROUP_LIST:
                        rc = lst_group_list_ioctl((lstio_group_list_args_t *)buf);
                        break;
                case LSTIO_GROUP_INFO:
                        rc = lst_group_info_ioctl((lstio_group_info_args_t *)buf);
                        break;
                case LSTIO_BATCH_ADD:
                        rc = lst_batch_add_ioctl((lstio_batch_add_args_t *)buf);
                        break;
                case LSTIO_BATCH_START:
                        rc = lst_batch_run_ioctl((lstio_batch_run_args_t *)buf);
                        break;
                case LSTIO_BATCH_STOP:
                        rc = lst_batch_stop_ioctl((lstio_batch_stop_args_t *)buf);
                        break;
                case LSTIO_BATCH_QUERY:
                        rc = lst_batch_query_ioctl((lstio_batch_query_args_t *)buf);
                        break;
                case LSTIO_BATCH_LIST:
                        rc = lst_batch_list_ioctl((lstio_batch_list_args_t *)buf);
                        break;
                case LSTIO_BATCH_INFO:
                        rc = lst_batch_info_ioctl((lstio_batch_info_args_t *)buf);
                        break;
                case LSTIO_TEST_ADD:
                        rc = lst_test_add_ioctl((lstio_test_args_t *)buf);
                        break;
                case LSTIO_STAT_QUERY:
                        rc = lst_stat_query_ioctl((lstio_stat_args_t *)buf);
                        break;
                default:
                        rc = -EINVAL;
        }

        if (copy_to_user(data->ioc_pbuf2, &console_session.ses_trans_stat,
                             sizeof(lstcon_trans_stat_t)))
                rc = -EFAULT;
out:
        mutex_unlock(&console_session.ses_mutex);

        LIBCFS_FREE(buf, data->ioc_plen1);

        return rc;
}

EXPORT_SYMBOL(lstcon_ioctl_entry);