/*
FUSE: Filesystem in Userspace
- Copyright (C) 2001-2005 Miklos Szeredi <miklos@szeredi.hu>
+ Copyright (C) 2001-2006 Miklos Szeredi <miklos@szeredi.hu>
This program can be distributed under the terms of the GNU GPL.
See the file COPYING.
*/
-/* This file defines the kernel interface of FUSE */
+/*
+ * This file defines the kernel interface of FUSE
+ *
+ * Protocol changelog:
+ *
+ * 7.9:
+ * - new fuse_getattr_in input argument of GETATTR
+ * - add lk_flags in fuse_lk_in
+ * - add lock_owner field to fuse_setattr_in, fuse_read_in and fuse_write_in
+ * - add blksize field to fuse_attr
+ * - add file flags field to fuse_read_in and fuse_write_in
+ *
+ * 7.10
+ * - add nonseekable open flag
+ */
+
+#ifndef _LINUX_FUSE_H
+#define _LINUX_FUSE_H
#include <asm/types.h>
#include <linux/major.h>
#define FUSE_KERNEL_VERSION 7
/** Minor version number of this interface */
-#define FUSE_KERNEL_MINOR_VERSION 6
+#define FUSE_KERNEL_MINOR_VERSION 10
/** The node ID of the root inode */
#define FUSE_ROOT_ID 1
__u32 uid;
__u32 gid;
__u32 rdev;
+ __u32 blksize;
+ __u32 padding;
};
struct fuse_kstatfs {
__u32 spare[6];
};
+struct fuse_file_lock {
+ __u64 start;
+ __u64 end;
+ __u32 type;
+ __u32 pid; /* tgid */
+};
+
/**
* Bitmasks for fuse_setattr_in.valid
*/
#define FATTR_ATIME (1 << 4)
#define FATTR_MTIME (1 << 5)
#define FATTR_FH (1 << 6)
+#define FATTR_ATIME_NOW (1 << 7)
+#define FATTR_MTIME_NOW (1 << 8)
+#define FATTR_LOCKOWNER (1 << 9)
/**
* Flags returned by the OPEN request
*
* FOPEN_DIRECT_IO: bypass page cache for this open file
* FOPEN_KEEP_CACHE: don't invalidate the data cache on open
+ * FOPEN_NONSEEKABLE: the file is not seekable
*/
#define FOPEN_DIRECT_IO (1 << 0)
#define FOPEN_KEEP_CACHE (1 << 1)
+#define FOPEN_NONSEEKABLE (1 << 2)
/**
* INIT request/reply flags
+ *
+ * FUSE_EXPORT_SUPPORT: filesystem handles lookups of "." and ".."
*/
#define FUSE_ASYNC_READ (1 << 0)
+#define FUSE_POSIX_LOCKS (1 << 1)
+#define FUSE_FILE_OPS (1 << 2)
+#define FUSE_ATOMIC_O_TRUNC (1 << 3)
+#define FUSE_EXPORT_SUPPORT (1 << 4)
+#define FUSE_BIG_WRITES (1 << 5)
+
+/**
+ * Release flags
+ */
+#define FUSE_RELEASE_FLUSH (1 << 0)
+
+/**
+ * Getattr flags
+ */
+#define FUSE_GETATTR_FH (1 << 0)
+
+/**
+ * Lock flags
+ */
+#define FUSE_LK_FLOCK (1 << 0)
+
+/**
+ * WRITE flags
+ *
+ * FUSE_WRITE_CACHE: delayed write from page cache, file handle is guessed
+ * FUSE_WRITE_LOCKOWNER: lock_owner field is valid
+ */
+#define FUSE_WRITE_CACHE (1 << 0)
+#define FUSE_WRITE_LOCKOWNER (1 << 1)
+
+/**
+ * Read flags
+ */
+#define FUSE_READ_LOCKOWNER (1 << 1)
enum fuse_opcode {
FUSE_LOOKUP = 1,
FUSE_READDIR = 28,
FUSE_RELEASEDIR = 29,
FUSE_FSYNCDIR = 30,
+ FUSE_GETLK = 31,
+ FUSE_SETLK = 32,
+ FUSE_SETLKW = 33,
FUSE_ACCESS = 34,
- FUSE_CREATE = 35
+ FUSE_CREATE = 35,
+ FUSE_INTERRUPT = 36,
+ FUSE_BMAP = 37,
+ FUSE_DESTROY = 38,
};
/* The read buffer is required to be at least 8k, but may be much larger */
#define FUSE_MIN_READ_BUFFER 8192
+#define FUSE_COMPAT_ENTRY_OUT_SIZE 120
+
struct fuse_entry_out {
__u64 nodeid; /* Inode ID */
__u64 generation; /* Inode generation: nodeid:gen must
__u64 nlookup;
};
+struct fuse_getattr_in {
+ __u32 getattr_flags;
+ __u32 dummy;
+ __u64 fh;
+};
+
+#define FUSE_COMPAT_ATTR_OUT_SIZE 96
+
struct fuse_attr_out {
__u64 attr_valid; /* Cache timeout for the attributes */
__u32 attr_valid_nsec;
__u32 padding;
__u64 fh;
__u64 size;
- __u64 unused1;
+ __u64 lock_owner;
__u64 atime;
__u64 mtime;
__u64 unused2;
struct fuse_release_in {
__u64 fh;
__u32 flags;
- __u32 padding;
+ __u32 release_flags;
+ __u64 lock_owner;
};
struct fuse_flush_in {
__u64 fh;
- __u32 flush_flags;
+ __u32 unused;
__u32 padding;
+ __u64 lock_owner;
};
struct fuse_read_in {
__u64 fh;
__u64 offset;
__u32 size;
+ __u32 read_flags;
+ __u64 lock_owner;
+ __u32 flags;
__u32 padding;
};
+#define FUSE_COMPAT_WRITE_IN_SIZE 24
+
struct fuse_write_in {
__u64 fh;
__u64 offset;
__u32 size;
__u32 write_flags;
+ __u64 lock_owner;
+ __u32 flags;
+ __u32 padding;
};
struct fuse_write_out {
__u32 padding;
};
+struct fuse_lk_in {
+ __u64 fh;
+ __u64 owner;
+ struct fuse_file_lock lk;
+ __u32 lk_flags;
+ __u32 padding;
+};
+
+struct fuse_lk_out {
+ struct fuse_file_lock lk;
+};
+
struct fuse_access_in {
__u32 mask;
__u32 padding;
__u32 max_write;
};
+struct fuse_interrupt_in {
+ __u64 unique;
+};
+
+struct fuse_bmap_in {
+ __u64 block;
+ __u32 blocksize;
+ __u32 padding;
+};
+
+struct fuse_bmap_out {
+ __u64 block;
+};
+
struct fuse_in_header {
__u32 len;
__u32 opcode;
char name[0];
};
-#define FUSE_NAME_OFFSET ((unsigned) ((struct fuse_dirent *) 0)->name)
+#define FUSE_NAME_OFFSET offsetof(struct fuse_dirent, name)
#define FUSE_DIRENT_ALIGN(x) (((x) + sizeof(__u64) - 1) & ~(sizeof(__u64) - 1))
#define FUSE_DIRENT_SIZE(d) \
FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen)
+
+#endif /* _LINUX_FUSE_H */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff