2 * Copyright (c) 2004 The DragonFly Project. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
5 * by Matthew Dillon <dillon@backplane.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * 3. Neither the name of The DragonFly Project nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific, prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * Copyright (c) 1989, 1993
36 * The Regents of the University of California. All rights reserved.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 * 3. All advertising materials mentioning features or use of this software
47 * must display the following acknowledgement:
48 * This product includes software developed by the University of
49 * California, Berkeley and its contributors.
50 * 4. Neither the name of the University nor the names of its contributors
51 * may be used to endorse or promote products derived from this software
52 * without specific prior written permission.
54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
67 * This module serves as a focal point for virtually all filesystem and
68 * device related calls. It is or will be responsible for all high level
69 * kernel management for filesystem and device operations, including but
73 * ---------------- -----
76 * Cache Coherency TODO
77 * VNode Operations Dispatch TODO
78 * Mount Point Operations TODO
79 * FileOps Operations TODO
82 #ifndef _SYS_VFSCACHE_H_
83 #define _SYS_VFSCACHE_H_
86 #include <sys/types.h>
91 #ifndef _SYS_VFSOPS_H_
92 #include <sys/vfsops.h>
99 * Vnode types. VNON means no type or transitory type. VINT is used
100 * for internal types. Note that VNON is skipped by the vnode scan.
102 enum vtype { VNON, VREG, VDIR, VBLK, VCHR, VLNK, VSOCK, VFIFO, VBAD,
107 * These are for the benefit of external programs only (e.g., pstat)
108 * and should NEVER be inspected by the kernel.
111 VT_NON, VT_UFS, VT_NFS, VT_MFS, VT_PC, VT_LFS, VT_LOFS, VT_UNUSED7,
112 VT_PORTAL, VT_NULL, VT_UNUSED10, VT_KERNFS, VT_PROCFS, VT_AFS,
113 VT_ISOFS, VT_UNION, VT_MSDOSFS, VT_TFS, VT_VFS, VT_CODA, VT_NTFS,
114 VT_HPFS, VT_SMBFS, VT_UDF, VT_EXT2FS, VT_SYNTH,
115 VT_HAMMER, VT_HAMMER2, VT_DEVFS, VT_TMPFS
119 * Vnode attributes. A field value of VNOVAL represents a field whose value
120 * is unavailable (getattr) or which is not to be changed (setattr).
122 * Some vattr fields may be wider then what is reported to userland.
125 enum vtype va_type; /* vnode type (for create) */
126 u_int64_t va_nlink; /* number of references to file */
127 u_short va_mode; /* files access mode and type */
128 uid_t va_uid; /* owner user id */
129 gid_t va_gid; /* owner group id */
130 udev_t va_fsid; /* file system id */
131 ino_t va_fileid; /* file id */
132 u_quad_t va_size; /* file size in bytes */
133 long va_blocksize; /* blocksize preferred for i/o */
134 struct timespec va_atime; /* time of last access */
135 struct timespec va_mtime; /* time of last modification */
136 struct timespec va_ctime; /* time file changed */
137 u_int64_t va_gen; /* generation number of file */
138 u_long va_flags; /* flags defined for file */
139 int va_rmajor; /* device the special file represents */
141 u_quad_t va_bytes; /* bytes of disk space held by file */
142 u_quad_t va_filerev; /* file modification number */
143 u_int va_vaflags; /* operations flags, see below */
144 long va_spare; /* remain quad aligned */
146 uuid_t va_uid_uuid; /* native uuids if available */
152 * Flags for va_vaflags.
154 * NOTE: The short versions for the uid, gid, and fsid are always populated
155 * even when the uuid versions are available.
157 #define VA_UTIMES_NULL 0x0001 /* utimes argument was NULL */
158 #define VA_EXCLUSIVE 0x0002 /* exclusive create request */
159 #define VA_UID_UUID_VALID 0x0004 /* uuid fields also populated */
160 #define VA_GID_UUID_VALID 0x0008 /* uuid fields also populated */
161 #define VA_FSID_UUID_VALID 0x0010 /* uuid fields also populated */