/*      $OpenBSD: mntopts.h,v 1.18 2016/09/10 16:53:30 natano Exp $     */
/*      $NetBSD: mntopts.h,v 1.3 1995/03/18 14:56:59 cgd Exp $  */

/*-
 * Copyright (c) 1994
 *      The Regents of the University of California.  All rights reserved.
 *
 * 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 University 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 REGENTS 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 REGENTS 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.
 *
 *      @(#)mntopts.h   8.3 (Berkeley) 3/27/94
 */

#define MFLAG_INVERSE           0x01    /* if a negative option, eg "dev" */
#define MFLAG_SET               0x02    /* 1 => set bit in mntflags,
                                           0 => return flag */
#define MFLAG_STRVAL            0x04    /* option needs a string value */
#define MFLAG_INTVAL            0x08    /* option needs an int value */
#define MFLAG_OPT               0x10    /* value is optional */

struct mntopt {
        const char *m_option;   /* option name */
        int m_flag;             /* bit to set, eg. MNT_RDONLY */
        int m_oflags;
};

union mntval {
        char *strval;
        int ival;
};

/* User-visible MNT_ flags. */
#define MOPT_ASYNC      { "async",      MNT_ASYNC, MFLAG_SET }
#define MOPT_NOACCESSTIME       { "accesstime", MNT_NOATIME,            \
                                        MFLAG_INVERSE | MFLAG_SET }
#define MOPT_NOATIME    { "atime",      MNT_NOATIME, MFLAG_INVERSE | MFLAG_SET }
#define MOPT_NODEV      { "dev",        MNT_NODEV, MFLAG_INVERSE | MFLAG_SET }
#define MOPT_NOEXEC     { "exec",       MNT_NOEXEC, MFLAG_INVERSE | MFLAG_SET }
#define MOPT_NOSUID     { "suid",       MNT_NOSUID, MFLAG_INVERSE | MFLAG_SET }
#define MOPT_NOPERM     { "perm",       MNT_NOPERM, MFLAG_INVERSE | MFLAG_SET }
#define MOPT_WXALLOWED  { "wxallowed",  MNT_WXALLOWED, MFLAG_SET }
#define MOPT_RDONLY     { "rdonly",     MNT_RDONLY, MFLAG_SET }
#define MOPT_SYNC       { "sync",       MNT_SYNCHRONOUS, MFLAG_SET }
#define MOPT_USERQUOTA  { "userquota",  0, MFLAG_SET | MFLAG_STRVAL \
                                            | MFLAG_OPT }
#define MOPT_GROUPQUOTA { "groupquota", 0, MFLAG_SET | MFLAG_STRVAL \
                                            | MFLAG_OPT }
#define MOPT_SOFTDEP    { "softdep",    MNT_SOFTDEP, MFLAG_SET }

/* Control flags. */
#define MOPT_FORCE      { "force",      MNT_FORCE, MFLAG_SET }
#define MOPT_UPDATE     { "update",     MNT_UPDATE, MFLAG_SET }
#define MOPT_RELOAD     { "reload",     MNT_RELOAD, MFLAG_SET }

/* Support for old-style "ro", "rw" flags. */
#define MOPT_RO         { "ro",         MNT_RDONLY, MFLAG_SET }
#define MOPT_RW         { "rw",         MNT_RDONLY, MFLAG_INVERSE | MFLAG_SET }

/* These are parsed by mount(8), but are ignored by specific mount_*(8)s. */
#define MOPT_AUTO               { "auto",       0, MFLAG_SET }
#define MOPT_NET                { "net",        0, MFLAG_SET }

#define MOPT_FSTAB_COMPAT                                               \
        MOPT_RO,                                                        \
        MOPT_RW,                                                        \
        MOPT_NET,                                                       \
        MOPT_AUTO

/* Standard options which all mounts can understand. */
#define MOPT_STDOPTS                                                    \
        MOPT_USERQUOTA,                                                 \
        MOPT_GROUPQUOTA,                                                \
        MOPT_FSTAB_COMPAT,                                              \
        MOPT_NOACCESSTIME,                                              \
        MOPT_NOATIME,                                                   \
        MOPT_NODEV,                                                     \
        MOPT_NOEXEC,                                                    \
        MOPT_NOSUID,                                                    \
        MOPT_RDONLY

int getmntopts(const char *, const struct mntopt *, int *);
int getmntopt(char **, union mntval *, const struct mntopt *, int *);