VirtualBox

source: vbox/trunk/src/VBox/Additions/linux/sharedfolders/vfsmod.h@ 27678

Last change on this file since 27678 was 26102, checked in by vboxsync, 15 years ago

Another fix for public #5891. Thanks to Pax Team for the suggestion.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 4.7 KB
Line 
1/** @file
2 *
3 * vboxvfs -- VirtualBox Guest Additions for Linux
4 */
5
6/*
7 * Copyright (C) 2006-2007 Sun Microsystems, Inc.
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 *
17 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
18 * Clara, CA 95054 USA or visit http://www.sun.com if you need
19 * additional information or have any questions.
20 */
21
22#ifndef VFSMOD_H
23#define VFSMOD_H
24
25#include "the-linux-kernel.h"
26#include "version-generated.h"
27
28#if LINUX_VERSION_CODE >= KERNEL_VERSION (2, 6, 0)
29# include <linux/backing-dev.h>
30#endif
31
32#include "VBoxCalls.h"
33#include "vbsfmount.h"
34
35/* per-shared folder information */
36struct sf_glob_info {
37 VBSFMAP map;
38 struct nls_table *nls;
39 int ttl;
40 int uid;
41 int gid;
42 int dmode;
43 int fmode;
44 int dmask;
45 int fmask;
46#if LINUX_VERSION_CODE >= KERNEL_VERSION (2, 6, 0)
47 struct backing_dev_info bdi;
48#endif
49};
50
51/* per-inode information */
52struct sf_inode_info {
53 /* which file */
54 SHFLSTRING *path;
55 /* some information was changed, update data on next revalidate */
56 int force_restat;
57 /* file structure, only valid between open() and release() */
58 struct file *file;
59};
60
61struct sf_dir_info {
62 struct list_head info_list;
63};
64
65struct sf_dir_buf {
66 size_t nb_entries;
67 size_t free_bytes;
68 size_t used_bytes;
69 void *buf;
70 struct list_head head;
71};
72
73struct sf_reg_info {
74 SHFLHANDLE handle;
75};
76
77/* globals */
78extern VBSFCLIENT client_handle;
79
80/* forward declarations */
81extern struct inode_operations sf_dir_iops;
82extern struct inode_operations sf_reg_iops;
83extern struct file_operations sf_dir_fops;
84extern struct file_operations sf_reg_fops;
85extern struct dentry_operations sf_dentry_ops;
86extern struct address_space_operations sf_reg_aops;
87
88extern void
89sf_init_inode (struct sf_glob_info *sf_g, struct inode *inode,
90 RTFSOBJINFO *info);
91extern int
92sf_stat (const char *caller, struct sf_glob_info *sf_g,
93 SHFLSTRING *path, RTFSOBJINFO *result, int ok_to_fail);
94extern int
95sf_inode_revalidate (struct dentry *dentry);
96#if LINUX_VERSION_CODE >= KERNEL_VERSION (2, 6, 0)
97extern int
98sf_getattr (struct vfsmount *mnt, struct dentry *dentry, struct kstat *kstat);
99extern int
100sf_setattr (struct dentry *dentry, struct iattr *iattr);
101#endif
102extern int
103sf_path_from_dentry (const char *caller, struct sf_glob_info *sf_g,
104 struct sf_inode_info *sf_i, struct dentry *dentry,
105 SHFLSTRING **result);
106extern int
107sf_nlscpy (struct sf_glob_info *sf_g,
108 char *name, size_t name_bound_len,
109 const unsigned char *utf8_name, size_t utf8_len);
110extern void
111sf_dir_info_free (struct sf_dir_info *p);
112extern struct sf_dir_info *
113sf_dir_info_alloc (void);
114extern int
115sf_dir_read_all (struct sf_glob_info *sf_g, struct sf_inode_info *sf_i,
116 struct sf_dir_info *sf_d, SHFLHANDLE handle);
117extern int
118sf_init_backing_dev (struct sf_glob_info *sf_g, const char *name);
119extern void
120sf_done_backing_dev (struct sf_glob_info *sf_g);
121
122#if LINUX_VERSION_CODE < KERNEL_VERSION (2, 6, 0)
123#define STRUCT_STATFS struct statfs
124#else
125#define STRUCT_STATFS struct kstatfs
126#endif
127int sf_get_volume_info(struct super_block *sb,STRUCT_STATFS *stat);
128
129#ifdef __cplusplus
130# define CMC_API __attribute__ ((cdecl, regparm (0)))
131#else
132# define CMC_API __attribute__ ((regparm (0)))
133#endif
134
135#define TRACE() LogFunc (("tracepoint\n"))
136
137/* Following casts are here to prevent assignment of void * to
138 pointers of arbitrary type */
139#if LINUX_VERSION_CODE < KERNEL_VERSION (2, 6, 0)
140#define GET_GLOB_INFO(sb) ((struct sf_glob_info *) (sb)->u.generic_sbp)
141#define SET_GLOB_INFO(sb, sf_g) (sb)->u.generic_sbp = sf_g
142#else
143#define GET_GLOB_INFO(sb) ((struct sf_glob_info *) (sb)->s_fs_info)
144#define SET_GLOB_INFO(sb, sf_g) (sb)->s_fs_info = sf_g
145#endif
146
147#if LINUX_VERSION_CODE >= KERNEL_VERSION (2, 6, 19) || defined(KERNEL_FC6)
148/* FC6 kernel 2.6.18, vanilla kernel 2.6.19+ */
149#define GET_INODE_INFO(i) ((struct sf_inode_info *) (i)->i_private)
150#define SET_INODE_INFO(i, sf_i) (i)->i_private = sf_i
151#else
152/* vanilla kernel up to 2.6.18 */
153#define GET_INODE_INFO(i) ((struct sf_inode_info *) (i)->u.generic_ip)
154#define SET_INODE_INFO(i, sf_i) (i)->u.generic_ip = sf_i
155#endif
156
157#endif /* vfsmod.h */
Note: See TracBrowser for help on using the repository browser.

© 2024 Oracle Support Privacy / Do Not Sell My Info Terms of Use Trademark Policy Automated Access Etiquette