forked from luck/tmp_suning_uos_patched
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
101 lines
3.7 KiB
C
101 lines
3.7 KiB
C
#ifndef __UM_FS_HOSTFS
|
|
#define __UM_FS_HOSTFS
|
|
|
|
#include "os.h"
|
|
|
|
/* These are exactly the same definitions as in fs.h, but the names are
|
|
* changed so that this file can be included in both kernel and user files.
|
|
*/
|
|
|
|
#define HOSTFS_ATTR_MODE 1
|
|
#define HOSTFS_ATTR_UID 2
|
|
#define HOSTFS_ATTR_GID 4
|
|
#define HOSTFS_ATTR_SIZE 8
|
|
#define HOSTFS_ATTR_ATIME 16
|
|
#define HOSTFS_ATTR_MTIME 32
|
|
#define HOSTFS_ATTR_CTIME 64
|
|
#define HOSTFS_ATTR_ATIME_SET 128
|
|
#define HOSTFS_ATTR_MTIME_SET 256
|
|
|
|
/* These two are unused by hostfs. */
|
|
#define HOSTFS_ATTR_FORCE 512 /* Not a change, but a change it */
|
|
#define HOSTFS_ATTR_ATTR_FLAG 1024
|
|
|
|
/* If you are very careful, you'll notice that these two are missing:
|
|
*
|
|
* #define ATTR_KILL_SUID 2048
|
|
* #define ATTR_KILL_SGID 4096
|
|
*
|
|
* and this is because they were added in 2.5 development in this patch:
|
|
*
|
|
* http://linux.bkbits.net:8080/linux-2.5/
|
|
* cset@3caf4a12k4XgDzK7wyK-TGpSZ9u2Ww?nav=index.html
|
|
* |src/.|src/include|src/include/linux|related/include/linux/fs.h
|
|
*
|
|
* Actually, they are not needed by most ->setattr() methods - they are set by
|
|
* callers of notify_change() to notify that the setuid/setgid bits must be
|
|
* dropped.
|
|
* notify_change() will delete those flags, make sure attr->ia_valid & ATTR_MODE
|
|
* is on, and remove the appropriate bits from attr->ia_mode (attr is a
|
|
* "struct iattr *"). -BlaisorBlade
|
|
*/
|
|
|
|
struct hostfs_iattr {
|
|
unsigned int ia_valid;
|
|
mode_t ia_mode;
|
|
uid_t ia_uid;
|
|
gid_t ia_gid;
|
|
loff_t ia_size;
|
|
struct timespec ia_atime;
|
|
struct timespec ia_mtime;
|
|
struct timespec ia_ctime;
|
|
unsigned int ia_attr_flags;
|
|
};
|
|
|
|
extern int stat_file(const char *path, unsigned long long *inode_out,
|
|
int *mode_out, int *nlink_out, int *uid_out, int *gid_out,
|
|
unsigned long long *size_out, struct timespec *atime_out,
|
|
struct timespec *mtime_out, struct timespec *ctime_out,
|
|
int *blksize_out, unsigned long long *blocks_out);
|
|
extern int access_file(char *path, int r, int w, int x);
|
|
extern int open_file(char *path, int r, int w, int append);
|
|
extern int file_type(const char *path, int *maj, int *min);
|
|
extern void *open_dir(char *path, int *err_out);
|
|
extern char *read_dir(void *stream, unsigned long long *pos,
|
|
unsigned long long *ino_out, int *len_out);
|
|
extern void close_file(void *stream);
|
|
extern void close_dir(void *stream);
|
|
extern int read_file(int fd, unsigned long long *offset, char *buf, int len);
|
|
extern int write_file(int fd, unsigned long long *offset, const char *buf,
|
|
int len);
|
|
extern int lseek_file(int fd, long long offset, int whence);
|
|
extern int file_create(char *name, int ur, int uw, int ux, int gr,
|
|
int gw, int gx, int or, int ow, int ox);
|
|
extern int set_attr(const char *file, struct hostfs_iattr *attrs);
|
|
extern int make_symlink(const char *from, const char *to);
|
|
extern int unlink_file(const char *file);
|
|
extern int do_mkdir(const char *file, int mode);
|
|
extern int do_rmdir(const char *file);
|
|
extern int do_mknod(const char *file, int mode, int dev);
|
|
extern int link_file(const char *from, const char *to);
|
|
extern int do_readlink(char *file, char *buf, int size);
|
|
extern int rename_file(char *from, char *to);
|
|
extern int do_statfs(char *root, long *bsize_out, long long *blocks_out,
|
|
long long *bfree_out, long long *bavail_out,
|
|
long long *files_out, long long *ffree_out,
|
|
void *fsid_out, int fsid_size, long *namelen_out,
|
|
long *spare_out);
|
|
|
|
#endif
|
|
|
|
/*
|
|
* Overrides for Emacs so that we follow Linus's tabbing style.
|
|
* Emacs will notice this stuff at the end of the file and automatically
|
|
* adjust the settings for this buffer only. This must remain at the end
|
|
* of the file.
|
|
* ---------------------------------------------------------------------------
|
|
* Local variables:
|
|
* c-file-style: "linux"
|
|
* End:
|
|
*/
|