/*
- * Virtio 9p
+ * 9p
*
* Copyright IBM, Corp. 2010
*
* the COPYING file in the top-level directory.
*
*/
-#ifndef _FILEOP_H
-#define _FILEOP_H
-#include <sys/types.h>
+
+#ifndef FILE_OP_9P_H
+#define FILE_OP_9P_H
+
#include <dirent.h>
-#include <sys/time.h>
#include <utime.h>
-#include <sys/stat.h>
-#include <sys/uio.h>
#include <sys/vfs.h>
+#include "qemu-fsdev-throttle.h"
#define SM_LOCAL_MODE_BITS 0600
#define SM_LOCAL_DIR_MODE_BITS 0700
-typedef struct FsCred
-{
+typedef struct FsCred {
uid_t fc_uid;
gid_t fc_gid;
mode_t fc_mode;
dev_t fc_rdev;
} FsCred;
-struct xattr_operations;
-struct FsContext;
-struct V9fsPath;
+typedef struct FsContext FsContext;
+typedef struct V9fsPath V9fsPath;
-typedef struct extended_ops {
- int (*get_st_gen)(struct FsContext *, struct V9fsPath *,
- mode_t, uint64_t *);
-} extended_ops;
+typedef struct ExtendedOps {
+ int (*get_st_gen)(FsContext *, V9fsPath *, mode_t, uint64_t *);
+} ExtendedOps;
/* export flags */
#define V9FS_IMMEDIATE_WRITEOUT 0x00000001
* On failure ignore the error.
*/
#define V9FS_SM_NONE 0x00000010
+/*
+ * uid/gid part of .virtfs_meatadata namespace
+ */
+#define V9FS_SM_MAPPED_FILE 0x00000020
+#define V9FS_RDONLY 0x00000040
+#define V9FS_PROXY_SOCK_FD 0x00000080
+#define V9FS_PROXY_SOCK_NAME 0x00000100
+/*
+ * multidevs option (either one of the two applies exclusively)
+ */
+#define V9FS_REMAP_INODES 0x00000200
+#define V9FS_FORBID_MULTIDEVS 0x00000400
+#define V9FS_SEC_MASK 0x0000003C
-#define V9FS_SEC_MASK 0x0000001C
-typedef struct FsContext
-{
+typedef struct FileOperations FileOperations;
+typedef struct XattrOperations XattrOperations;
+
+/*
+ * Structure to store the various fsdev's passed through command line.
+ */
+typedef struct FsDriverEntry {
+ char *fsdev_id;
+ char *path;
+ int export_flags;
+ FileOperations *ops;
+ FsThrottle fst;
+ mode_t fmode;
+ mode_t dmode;
+} FsDriverEntry;
+
+struct FsContext {
uid_t uid;
char *fs_root;
int export_flags;
- struct xattr_operations **xops;
- struct extended_ops exops;
+ XattrOperations **xops;
+ ExtendedOps exops;
+ FsThrottle *fst;
/* fs driver specific data */
void *private;
-} FsContext;
+ mode_t fmode;
+ mode_t dmode;
+};
-typedef struct V9fsPath {
- int16_t size;
+struct V9fsPath {
+ uint16_t size;
char *data;
-} V9fsPath;
+};
+
+typedef union V9fsFidOpenState V9fsFidOpenState;
void cred_init(FsCred *);
-typedef struct FileOperations
+struct FileOperations
{
- int (*init)(struct FsContext *);
+ int (*parse_opts)(QemuOpts *, FsDriverEntry *, Error **errp);
+ int (*init)(FsContext *, Error **errp);
+ void (*cleanup)(FsContext *);
int (*lstat)(FsContext *, V9fsPath *, struct stat *);
ssize_t (*readlink)(FsContext *, V9fsPath *, char *, size_t);
int (*chmod)(FsContext *, V9fsPath *, FsCred *);
const char *, FsCred *);
int (*link)(FsContext *, V9fsPath *, V9fsPath *, const char *);
int (*setuid)(FsContext *, uid_t);
- int (*close)(FsContext *, int);
- int (*closedir)(FsContext *, DIR *);
- DIR *(*opendir)(FsContext *, V9fsPath *);
- int (*open)(FsContext *, V9fsPath *, int);
- int (*open2)(FsContext *, V9fsPath *, const char *, int, FsCred *);
- void (*rewinddir)(FsContext *, DIR *);
- off_t (*telldir)(FsContext *, DIR *);
- int (*readdir_r)(FsContext *, DIR *, struct dirent *, struct dirent **);
- void (*seekdir)(FsContext *, DIR *, off_t);
- ssize_t (*preadv)(FsContext *, int, const struct iovec *, int, off_t);
- ssize_t (*pwritev)(FsContext *, int, const struct iovec *, int, off_t);
+ int (*close)(FsContext *, V9fsFidOpenState *);
+ int (*closedir)(FsContext *, V9fsFidOpenState *);
+ int (*opendir)(FsContext *, V9fsPath *, V9fsFidOpenState *);
+ int (*open)(FsContext *, V9fsPath *, int, V9fsFidOpenState *);
+ int (*open2)(FsContext *, V9fsPath *, const char *,
+ int, FsCred *, V9fsFidOpenState *);
+ void (*rewinddir)(FsContext *, V9fsFidOpenState *);
+ off_t (*telldir)(FsContext *, V9fsFidOpenState *);
+ struct dirent * (*readdir)(FsContext *, V9fsFidOpenState *);
+ void (*seekdir)(FsContext *, V9fsFidOpenState *, off_t);
+ ssize_t (*preadv)(FsContext *, V9fsFidOpenState *,
+ const struct iovec *, int, off_t);
+ ssize_t (*pwritev)(FsContext *, V9fsFidOpenState *,
+ const struct iovec *, int, off_t);
int (*mkdir)(FsContext *, V9fsPath *, const char *, FsCred *);
- int (*fstat)(FsContext *, int, struct stat *);
+ int (*fstat)(FsContext *, int, V9fsFidOpenState *, struct stat *);
int (*rename)(FsContext *, const char *, const char *);
int (*truncate)(FsContext *, V9fsPath *, off_t);
- int (*fsync)(FsContext *, int, int);
+ int (*fsync)(FsContext *, int, V9fsFidOpenState *, int);
int (*statfs)(FsContext *s, V9fsPath *path, struct statfs *stbuf);
ssize_t (*lgetxattr)(FsContext *, V9fsPath *,
const char *, void *, size_t);
int (*renameat)(FsContext *ctx, V9fsPath *olddir, const char *old_name,
V9fsPath *newdir, const char *new_name);
int (*unlinkat)(FsContext *ctx, V9fsPath *dir, const char *name, int flags);
- void *opaque;
-} FileOperations;
+};
#endif