#include <sys/stat.h>
#include <sys/uio.h>
#include <sys/vfs.h>
+
#define SM_LOCAL_MODE_BITS 0600
#define SM_LOCAL_DIR_MODE_BITS 0700
-typedef enum
-{
- /*
- * Server will try to set uid/gid.
- * On failure ignore the error.
- */
- SM_NONE = 0,
- /*
- * uid/gid set on fileserver files
- */
- SM_PASSTHROUGH = 1,
- /*
- * uid/gid part of xattr
- */
- SM_MAPPED,
-} SecModel;
-
typedef struct FsCred
{
uid_t fc_uid;
} FsCred;
struct xattr_operations;
+struct FsContext;
+struct V9fsPath;
+
+typedef struct extended_ops {
+ int (*get_st_gen)(struct FsContext *, struct V9fsPath *,
+ mode_t, uint64_t *);
+} extended_ops;
+
+/* export flags */
+#define V9FS_IMMEDIATE_WRITEOUT 0x00000001
+#define V9FS_PATHNAME_FSCONTEXT 0x00000002
+/*
+ * uid/gid set on fileserver files
+ */
+#define V9FS_SM_PASSTHROUGH 0x00000004
+/*
+ * uid/gid part of xattr
+ */
+#define V9FS_SM_MAPPED 0x00000008
+/*
+ * Server will try to set uid/gid.
+ * 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
+
+#define V9FS_SEC_MASK 0x0000003C
+
+
+typedef struct FileOperations FileOperations;
+/*
+ * Structure to store the various fsdev's passed through command line.
+ */
+typedef struct FsDriverEntry {
+ char *fsdev_id;
+ char *path;
+ int export_flags;
+ FileOperations *ops;
+} FsDriverEntry;
typedef struct FsContext
{
- char *fs_root;
- SecModel fs_sm;
uid_t uid;
+ char *fs_root;
+ int export_flags;
struct xattr_operations **xops;
+ struct extended_ops exops;
+ /* fs driver specific data */
+ void *private;
} FsContext;
+typedef struct V9fsPath {
+ uint16_t size;
+ char *data;
+} V9fsPath;
+
+typedef union V9fsFidOpenState V9fsFidOpenState;
+
void cred_init(FsCred *);
-typedef struct FileOperations
+struct FileOperations
{
- int (*lstat)(FsContext *, const char *, struct stat *);
- ssize_t (*readlink)(FsContext *, const char *, char *, size_t);
- int (*chmod)(FsContext *, const char *, FsCred *);
- int (*chown)(FsContext *, const char *, FsCred *);
- int (*mknod)(FsContext *, const char *, FsCred *);
- int (*utimensat)(FsContext *, const char *, const struct timespec *);
+ int (*parse_opts)(QemuOpts *, struct FsDriverEntry *);
+ int (*init)(struct FsContext *);
+ int (*lstat)(FsContext *, V9fsPath *, struct stat *);
+ ssize_t (*readlink)(FsContext *, V9fsPath *, char *, size_t);
+ int (*chmod)(FsContext *, V9fsPath *, FsCred *);
+ int (*chown)(FsContext *, V9fsPath *, FsCred *);
+ int (*mknod)(FsContext *, V9fsPath *, const char *, FsCred *);
+ int (*utimensat)(FsContext *, V9fsPath *, const struct timespec *);
int (*remove)(FsContext *, const char *);
- int (*symlink)(FsContext *, const char *, const char *, FsCred *);
- int (*link)(FsContext *, const char *, const char *);
+ int (*symlink)(FsContext *, const char *, V9fsPath *,
+ 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 *, const char *);
- int (*open)(FsContext *, const char *, int);
- int (*open2)(FsContext *, const char *, int, FsCred *);
- void (*rewinddir)(FsContext *, DIR *);
- off_t (*telldir)(FsContext *, DIR *);
- struct dirent *(*readdir)(FsContext *, DIR *);
- 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 (*mkdir)(FsContext *, const char *, FsCred *);
- int (*fstat)(FsContext *, int, struct stat *);
+ 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 *);
+ int (*readdir_r)(FsContext *, V9fsFidOpenState *,
+ struct dirent *, struct dirent **);
+ 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, V9fsFidOpenState *, struct stat *);
int (*rename)(FsContext *, const char *, const char *);
- int (*truncate)(FsContext *, const char *, off_t);
- int (*fsync)(FsContext *, int, int);
- int (*statfs)(FsContext *s, const char *path, struct statfs *stbuf);
- ssize_t (*lgetxattr)(FsContext *, const char *,
+ int (*truncate)(FsContext *, V9fsPath *, off_t);
+ 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);
- ssize_t (*llistxattr)(FsContext *, const char *, void *, size_t);
- int (*lsetxattr)(FsContext *, const char *,
+ ssize_t (*llistxattr)(FsContext *, V9fsPath *, void *, size_t);
+ int (*lsetxattr)(FsContext *, V9fsPath *,
const char *, void *, size_t, int);
- int (*lremovexattr)(FsContext *, const char *, const char *);
+ int (*lremovexattr)(FsContext *, V9fsPath *, const char *);
+ int (*name_to_path)(FsContext *, V9fsPath *, const char *, V9fsPath *);
+ 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
projects / qemu.git / blobdiff