ia64/linux-2.6.18-xen.hg

view fs/hostfs/hostfs.h @ 524:7f8b544237bf

netfront: Allow netfront in domain 0.

This is useful if your physical network device is in a utility domain.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
author Keir Fraser <keir.fraser@citrix.com>
date Tue Apr 15 15:18:58 2008 +0100 (2008-04-15)
parents 831230e53067
children
line source
1 #ifndef __UM_FS_HOSTFS
2 #define __UM_FS_HOSTFS
4 #include "os.h"
6 /* These are exactly the same definitions as in fs.h, but the names are
7 * changed so that this file can be included in both kernel and user files.
8 */
10 #define HOSTFS_ATTR_MODE 1
11 #define HOSTFS_ATTR_UID 2
12 #define HOSTFS_ATTR_GID 4
13 #define HOSTFS_ATTR_SIZE 8
14 #define HOSTFS_ATTR_ATIME 16
15 #define HOSTFS_ATTR_MTIME 32
16 #define HOSTFS_ATTR_CTIME 64
17 #define HOSTFS_ATTR_ATIME_SET 128
18 #define HOSTFS_ATTR_MTIME_SET 256
20 /* These two are unused by hostfs. */
21 #define HOSTFS_ATTR_FORCE 512 /* Not a change, but a change it */
22 #define HOSTFS_ATTR_ATTR_FLAG 1024
24 /* If you are very careful, you'll notice that these two are missing:
25 *
26 * #define ATTR_KILL_SUID 2048
27 * #define ATTR_KILL_SGID 4096
28 *
29 * and this is because they were added in 2.5 development in this patch:
30 *
31 * http://linux.bkbits.net:8080/linux-2.5/
32 * cset@3caf4a12k4XgDzK7wyK-TGpSZ9u2Ww?nav=index.html
33 * |src/.|src/include|src/include/linux|related/include/linux/fs.h
34 *
35 * Actually, they are not needed by most ->setattr() methods - they are set by
36 * callers of notify_change() to notify that the setuid/setgid bits must be
37 * dropped.
38 * notify_change() will delete those flags, make sure attr->ia_valid & ATTR_MODE
39 * is on, and remove the appropriate bits from attr->ia_mode (attr is a
40 * "struct iattr *"). -BlaisorBlade
41 */
43 struct hostfs_iattr {
44 unsigned int ia_valid;
45 mode_t ia_mode;
46 uid_t ia_uid;
47 gid_t ia_gid;
48 loff_t ia_size;
49 struct timespec ia_atime;
50 struct timespec ia_mtime;
51 struct timespec ia_ctime;
52 };
54 extern int stat_file(const char *path, unsigned long long *inode_out,
55 int *mode_out, int *nlink_out, int *uid_out, int *gid_out,
56 unsigned long long *size_out, struct timespec *atime_out,
57 struct timespec *mtime_out, struct timespec *ctime_out,
58 int *blksize_out, unsigned long long *blocks_out);
59 extern int access_file(char *path, int r, int w, int x);
60 extern int open_file(char *path, int r, int w, int append);
61 extern int file_type(const char *path, int *maj, int *min);
62 extern void *open_dir(char *path, int *err_out);
63 extern char *read_dir(void *stream, unsigned long long *pos,
64 unsigned long long *ino_out, int *len_out);
65 extern void close_file(void *stream);
66 extern void close_dir(void *stream);
67 extern int read_file(int fd, unsigned long long *offset, char *buf, int len);
68 extern int write_file(int fd, unsigned long long *offset, const char *buf,
69 int len);
70 extern int lseek_file(int fd, long long offset, int whence);
71 extern int fsync_file(int fd, int datasync);
72 extern int file_create(char *name, int ur, int uw, int ux, int gr,
73 int gw, int gx, int or, int ow, int ox);
74 extern int set_attr(const char *file, struct hostfs_iattr *attrs);
75 extern int make_symlink(const char *from, const char *to);
76 extern int unlink_file(const char *file);
77 extern int do_mkdir(const char *file, int mode);
78 extern int do_rmdir(const char *file);
79 extern int do_mknod(const char *file, int mode, int dev);
80 extern int link_file(const char *from, const char *to);
81 extern int do_readlink(char *file, char *buf, int size);
82 extern int rename_file(char *from, char *to);
83 extern int do_statfs(char *root, long *bsize_out, long long *blocks_out,
84 long long *bfree_out, long long *bavail_out,
85 long long *files_out, long long *ffree_out,
86 void *fsid_out, int fsid_size, long *namelen_out,
87 long *spare_out);
89 #endif
91 /*
92 * Overrides for Emacs so that we follow Linus's tabbing style.
93 * Emacs will notice this stuff at the end of the file and automatically
94 * adjust the settings for this buffer only. This must remain at the end
95 * of the file.
96 * ---------------------------------------------------------------------------
97 * Local variables:
98 * c-file-style: "linux"
99 * End:
100 */