FreeBSD/Linux Kernel Cross Reference
sys/sys/xdiskioctl.h

     /*
      * Copyright (c) 2012 The DragonFly Project.  All rights reserved.
      *
      * This code is derived from software contributed to The DragonFly Project
      * by Matthew Dillon <dillon@dragonflybsd.org>
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
     *
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in
     *    the documentation and/or other materials provided with the
     *    distribution.
     * 3. Neither the name of The DragonFly Project nor the names of its
     *    contributors may be used to endorse or promote products derived
     *    from this software without specific, prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
     * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
     * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
     * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
     * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
     * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     */
    
    #ifndef _SYS_XDISKIOCTL_H_
    #define _SYS_XDISKIOCTL_H_
    
    #ifndef _SYS_IOCCOM_H_
    #include <sys/ioccom.h>
    #endif
    #ifndef _SYS_PARAM_H_
    #include <sys/param.h>          /* PATH_MAX */
    #endif
    
    /*
     * ioctl definitions
     */
    struct xdisk_attach_ioctl {
            int     fd;
            int     unit;
            int64_t bytes;          /* size of disk in bytes */
            int     blksize;
            int     unused01;
            int32_t reserved02[8];
            char    cl_label[64];   /* LNK_SPAN cl_label match (typ host/dev) */
            char    fs_label[64];   /* LNK_SPAN fs_label match (typ serialno) */
    };
    
    #define XDISKIOCATTACH  _IOWR('X', 0, struct xdisk_attach_ioctl)
    #define XDISKIOCDETACH  _IOWR('X', 1, struct xdisk_attach_ioctl)
    
    #endif

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