1/*- 2 * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29#ifndef _OPENSOLARIS_SYS_VFS_H_ 30#define _OPENSOLARIS_SYS_VFS_H_ 31 32#include <sys/param.h> 33 34#ifdef _KERNEL 35 36#include <sys/mount.h> 37#include <sys/vnode.h> 38 39#define rootdir rootvnode 40 41typedef struct mount vfs_t; 42 43#define vfs_flag mnt_flag 44#define vfs_data mnt_data 45#define vfs_count mnt_ref 46#define vfs_fsid mnt_stat.f_fsid 47#define vfs_bsize mnt_stat.f_bsize 48#define vfs_resource mnt_stat.f_mntfromname 49 50#define v_flag v_vflag 51#define v_vfsp v_mount 52 53#define VFS_RDONLY MNT_RDONLY 54#define VFS_NOSETUID MNT_NOSUID 55#define VFS_NOEXEC MNT_NOEXEC 56 57#define VFS_HOLD(vfsp) do { \ 58 MNT_ILOCK(vfsp); \ 59 MNT_REF(vfsp); \ 60 MNT_IUNLOCK(vfsp); \ 61} while (0) 62#define VFS_RELE(vfsp) do { \ 63 MNT_ILOCK(vfsp); \ 64 MNT_REL(vfsp); \ 65 MNT_IUNLOCK(vfsp); \ 66} while (0) 67 68#define fs_vscan(vp, cr, async) (0) 69 70#define VROOT VV_ROOT 71 72/* 73 * Structure defining a mount option for a filesystem. 74 * option names are found in mntent.h 75 */ 76typedef struct mntopt { 77 char *mo_name; /* option name */ 78 char **mo_cancel; /* list of options cancelled by this one */ 79 char *mo_arg; /* argument string for this option */ 80 int mo_flags; /* flags for this mount option */ 81 void *mo_data; /* filesystem specific data */ 82} mntopt_t; 83 84/* 85 * Flags that apply to mount options 86 */ 87 88#define MO_SET 0x01 /* option is set */ 89#define MO_NODISPLAY 0x02 /* option not listed in mnttab */ 90#define MO_HASVALUE 0x04 /* option takes a value */ 91#define MO_IGNORE 0x08 /* option ignored by parser */ 92#define MO_DEFAULT MO_SET /* option is on by default */ 93#define MO_TAG 0x10 /* flags a tag set by user program */ 94#define MO_EMPTY 0x20 /* empty space in option table */ 95 96#define VFS_NOFORCEOPT 0x01 /* honor MO_IGNORE (don't set option) */ 97#define VFS_DISPLAY 0x02 /* Turn off MO_NODISPLAY bit for opt */ 98#define VFS_NODISPLAY 0x04 /* Turn on MO_NODISPLAY bit for opt */ 99#define VFS_CREATEOPT 0x08 /* Create the opt if it's not there */ 100 101/* 102 * Structure holding mount option strings for the mounted file system. 103 */ 104typedef struct mntopts { 105 uint_t mo_count; /* number of entries in table */ 106 mntopt_t *mo_list; /* list of mount options */ 107} mntopts_t; 108 109void vfs_setmntopt(vfs_t *vfsp, const char *name, const char *arg, 110 int flags __unused); 111void vfs_clearmntopt(vfs_t *vfsp, const char *name); 112int vfs_optionisset(const vfs_t *vfsp, const char *opt, char **argp); 113int mount_snapshot(kthread_t *td, vnode_t **vpp, const char *fstype, 114 char *fspath, char *fspec, int fsflags); 115 116typedef uint64_t vfs_feature_t; 117 118#define VFSFT_XVATTR 0x100000001 /* Supports xvattr for attrs */ 119#define VFSFT_CASEINSENSITIVE 0x100000002 /* Supports case-insensitive */ 120#define VFSFT_NOCASESENSITIVE 0x100000004 /* NOT case-sensitive */ 121#define VFSFT_DIRENTFLAGS 0x100000008 /* Supports dirent flags */ 122#define VFSFT_ACLONCREATE 0x100000010 /* Supports ACL on create */ 123#define VFSFT_ACEMASKONACCESS 0x100000020 /* Can use ACEMASK for access */ 124#define VFSFT_SYSATTR_VIEWS 0x100000040 /* Supports sysattr view i/f */ 125#define VFSFT_ACCESS_FILTER 0x100000080 /* dirents filtered by access */ 126#define VFSFT_REPARSE 0x100000100 /* Supports reparse point */ 127#define VFSFT_ZEROCOPY_SUPPORTED 0x100000200 128 /* Support loaning /returning cache buffer */ 129 130#define vfs_set_feature(vfsp, feature) do { } while (0) 131#define vfs_clear_feature(vfsp, feature) do { } while (0) 132#define vfs_has_feature(vfsp, feature) (0) 133 134#endif /* _KERNEL */ 135 136#endif /* _OPENSOLARIS_SYS_VFS_H_ */ 137