root/sys/vfs/hammer2/hammer2_mount.h
/*
 * Copyright (c) 2011-2018 The DragonFly Project.  All rights reserved.
 *
 * This code is derived from software contributed to The DragonFly Project
 * by Matthew Dillon <dillon@backplane.com>
 *
 * 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 _VFS_HAMMER2_MOUNT_H_
#define _VFS_HAMMER2_MOUNT_H_

/*
 * This structure is passed from userland to the kernel during the mount
 * system call.
 *
 * The volume name is formatted as '/dev/ad0s1a@LABEL', where the label is
 * the mount point under the super-root.
 */
struct hammer2_mount_info {
        const char      *volume;
        int             hflags;         /* extended hammer2 mount flags */
        int             cluster_fd;     /* cluster management pipe/socket */
        char            reserved1[112];
};

#define HMNT2_UNUSED01          0x00000001
#define HMNT2_LOCAL             0x00000002
#define HMNT2_EMERG             0x00000004      /* emergency mode */

#define HMNT2_USERFLAGS         (HMNT2_LOCAL)
#define HMNT2_DEVFLAGS          (HMNT2_LOCAL)

#endif /* !_VFS_HAMMER2_MOUNT_H_ */