/*
- * 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"
+#include "p9array.h"
+
+#ifdef CONFIG_LINUX
+# include <sys/vfs.h>
+#endif
+#ifdef CONFIG_DARWIN
+# include <sys/param.h>
+# include <sys/mount.h>
+#endif
#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
-#define V9FS_RDONLY 0x00000020
-#define V9FS_PROXY_SOCK_FD 0x00000040
-#define V9FS_PROXY_SOCK_NAME 0x00000080
+/*
+ * 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
+/*
+ * Disables certain performance warnings from being logged on host side.
+ */
+#define V9FS_NO_PERF_WARN 0x00000800
-#define V9FS_SEC_MASK 0x0000001C
+#define V9FS_SEC_MASK 0x0000003C
typedef struct FileOperations FileOperations;
+typedef struct XattrOperations XattrOperations;
+
/*
* Structure to store the various fsdev's passed through command line.
*/
char *path;
int export_flags;
FileOperations *ops;
+ FsThrottle fst;
+ mode_t fmode;
+ mode_t dmode;
} FsDriverEntry;
-typedef struct FsContext
-{
+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 {
+struct V9fsPath {
uint16_t size;
char *data;
-} V9fsPath;
+};
+P9ARRAY_DECLARE_TYPE(V9fsPath);
typedef union V9fsFidOpenState V9fsFidOpenState;
void cred_init(FsCred *);
-struct FileOperations
-{
- int (*parse_opts)(QemuOpts *, struct FsDriverEntry *);
- int (*init)(struct FsContext *);
+struct FileOperations {
+ 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 *);
int, FsCred *, V9fsFidOpenState *);
void (*rewinddir)(FsContext *, V9fsFidOpenState *);
off_t (*telldir)(FsContext *, V9fsFidOpenState *);
- int (*readdir_r)(FsContext *, V9fsFidOpenState *,
- struct dirent *, struct dirent **);
+ struct dirent * (*readdir)(FsContext *, V9fsFidOpenState *);
void (*seekdir)(FsContext *, V9fsFidOpenState *, off_t);
ssize_t (*preadv)(FsContext *, V9fsFidOpenState *,
const struct iovec *, int, off_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;
};
#endif