1 /* $NetBSD: vfs.h,v 1.4 2010/02/28 14:45:47 haad Exp $ */ 2 3 /*- 4 * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD: src/sys/compat/opensolaris/sys/vfs.h,v 1.2 2007/06/04 11:31:45 pjd Exp $ 29 */ 30 31 #ifndef _OPENSOLARIS_SYS_VFS_H_ 32 #define _OPENSOLARIS_SYS_VFS_H_ 33 34 #include <sys/param.h> 35 36 #ifdef _KERNEL 37 38 #include <sys/mount.h> 39 #include <sys/vnode.h> 40 41 #define rootdir rootvnode 42 43 typedef struct mount vfs_t; 44 45 #define vfs_flag mnt_flag 46 #define vfs_data mnt_data 47 #define vfs_count mnt_refcnt 48 #define vfs_fsid mnt_stat.f_fsid 49 #define vfs_bsize mnt_stat.f_bsize 50 51 #define v_flag v_vflag 52 #define v_vfsp v_mount 53 54 #define f_basetype f_fstypename 55 56 #define vfs_setfsops(a, b, c) vfs_attach(&b) 57 #define vfs_freevfsops_by_type(zfsfstype) do { } while (0) 58 59 #define VFS_RDONLY MNT_RDONLY 60 #define VFS_NOSETUID MNT_NOSUID 61 #define VFS_NOEXEC MNT_NOEXEC 62 #define VFS_NODEVICES MNT_NODEV 63 #define VFS_NOTRUNC 0 64 65 #define VFS_HOLD(vfsp) do { \ 66 /* XXXNETBSD nothing */ \ 67 } while (0) 68 #define VFS_RELE(vfsp) do { \ 69 /* XXXNETBSD nothing */ \ 70 } while (0) 71 72 #define VROOT VV_ROOT 73 74 /* 75 * Structure defining a mount option for a filesystem. 76 * option names are found in mntent.h 77 */ 78 typedef struct mntopt { 79 char *mo_name; /* option name */ 80 char **mo_cancel; /* list of options cancelled by this one */ 81 char *mo_arg; /* argument string for this option */ 82 int mo_flags; /* flags for this mount option */ 83 void *mo_data; /* filesystem specific data */ 84 } mntopt_t; 85 86 /* 87 * Flags that apply to mount options 88 */ 89 90 #define MO_SET 0x01 /* option is set */ 91 #define MO_NODISPLAY 0x02 /* option not listed in mnttab */ 92 #define MO_HASVALUE 0x04 /* option takes a value */ 93 #define MO_IGNORE 0x08 /* option ignored by parser */ 94 #define MO_DEFAULT MO_SET /* option is on by default */ 95 #define MO_TAG 0x10 /* flags a tag set by user program */ 96 #define MO_EMPTY 0x20 /* empty space in option table */ 97 98 #define VFS_NOFORCEOPT 0x01 /* honor MO_IGNORE (don't set option) */ 99 #define VFS_DISPLAY 0x02 /* Turn off MO_NODISPLAY bit for opt */ 100 #define VFS_NODISPLAY 0x04 /* Turn on MO_NODISPLAY bit for opt */ 101 #define VFS_CREATEOPT 0x08 /* Create the opt if it's not there */ 102 #define VFS_UNMOUNTED 0x100 /* file system has been unmounted */ 103 104 #define MS_SYSSPACE 0x0008 /* Mounta already in kernel space */ 105 #define MS_DATA 0 106 107 /* 108 * Structure holding mount option strings for the mounted file system. 109 */ 110 typedef struct mntopts { 111 uint_t mo_count; /* number of entries in table */ 112 mntopt_t *mo_list; /* list of mount options */ 113 } mntopts_t; 114 115 /* 116 * Argument structure for mount(2). 117 * 118 * Flags are defined in <sys/mount.h>. 119 * 120 * Note that if the MS_SYSSPACE bit is set in flags, the pointer fields in 121 * this structure are to be interpreted as kernel addresses. File systems 122 * should be prepared for this possibility. 123 */ 124 struct mounta { 125 char fspec[MAXNAMELEN - 1]; 126 char dataptr[MAXPATHLEN]; 127 char optptr[MAXPATHLEN]; 128 char *fstype; /* Unused */ 129 int mflag; 130 int datalen; 131 int optlen; 132 int flags; /* Unused */ 133 }; 134 135 #define vfs_devismounted(dev) 0 136 #define fs_vscan(vp, cr, async) (0) 137 138 void vfs_setmntopt(vfs_t *vfsp, const char *name, const char *arg, 139 int flags __unused); 140 void vfs_clearmntopt(vfs_t *vfsp, const char *name); 141 int vfs_optionisset(const vfs_t *vfsp, const char *opt, char **argp); 142 int traverse(vnode_t **cvpp, int lktype); 143 int domount(kthread_t *td, vnode_t *vp, const char *fstype, char *fspath, 144 char *fspec, int fsflags); 145 146 #define vfs_set_feature(vfsp, feature) do { } while (0) 147 #define vfs_has_feature(vfsp, feature) (0) 148 149 int zfs_vfsinit(int fstype, char *name); 150 int zfs_vfsfini(void); 151 152 #endif /* _KERNEL */ 153 154 #endif /* _OPENSOLARIS_SYS_VFS_H_ */ 155