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Annotation of qemu/fsdev/file-op-9p.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Virtio 9p
        !             3:  *
        !             4:  * Copyright IBM, Corp. 2010
        !             5:  *
        !             6:  * Authors:
        !             7:  *  Aneesh Kumar K.V <[email protected]>
        !             8:  *
        !             9:  * This work is licensed under the terms of the GNU GPL, version 2.  See
        !            10:  * the COPYING file in the top-level directory.
        !            11:  *
        !            12:  */
        !            13: #ifndef _FILEOP_H
        !            14: #define _FILEOP_H
        !            15: #include <sys/types.h>
        !            16: #include <dirent.h>
        !            17: #include <sys/time.h>
        !            18: #include <utime.h>
        !            19: #include <sys/stat.h>
        !            20: #include <sys/uio.h>
        !            21: #include <sys/vfs.h>
        !            22: #define SM_LOCAL_MODE_BITS    0600
        !            23: #define SM_LOCAL_DIR_MODE_BITS    0700
        !            24: 
        !            25: typedef enum
        !            26: {
        !            27:     /*
        !            28:      * Server will try to set uid/gid.
        !            29:      * On failure ignore the error.
        !            30:      */
        !            31:     SM_NONE = 0,
        !            32:     /*
        !            33:      * uid/gid set on fileserver files
        !            34:      */
        !            35:     SM_PASSTHROUGH = 1,
        !            36:     /*
        !            37:      * uid/gid part of xattr
        !            38:      */
        !            39:     SM_MAPPED,
        !            40: } SecModel;
        !            41: 
        !            42: typedef struct FsCred
        !            43: {
        !            44:     uid_t   fc_uid;
        !            45:     gid_t   fc_gid;
        !            46:     mode_t  fc_mode;
        !            47:     dev_t   fc_rdev;
        !            48: } FsCred;
        !            49: 
        !            50: struct xattr_operations;
        !            51: 
        !            52: typedef struct FsContext
        !            53: {
        !            54:     char *fs_root;
        !            55:     SecModel fs_sm;
        !            56:     uid_t uid;
        !            57:     struct xattr_operations **xops;
        !            58: } FsContext;
        !            59: 
        !            60: void cred_init(FsCred *);
        !            61: 
        !            62: typedef struct FileOperations
        !            63: {
        !            64:     int (*lstat)(FsContext *, const char *, struct stat *);
        !            65:     ssize_t (*readlink)(FsContext *, const char *, char *, size_t);
        !            66:     int (*chmod)(FsContext *, const char *, FsCred *);
        !            67:     int (*chown)(FsContext *, const char *, FsCred *);
        !            68:     int (*mknod)(FsContext *, const char *, FsCred *);
        !            69:     int (*utimensat)(FsContext *, const char *, const struct timespec *);
        !            70:     int (*remove)(FsContext *, const char *);
        !            71:     int (*symlink)(FsContext *, const char *, const char *, FsCred *);
        !            72:     int (*link)(FsContext *, const char *, const char *);
        !            73:     int (*setuid)(FsContext *, uid_t);
        !            74:     int (*close)(FsContext *, int);
        !            75:     int (*closedir)(FsContext *, DIR *);
        !            76:     DIR *(*opendir)(FsContext *, const char *);
        !            77:     int (*open)(FsContext *, const char *, int);
        !            78:     int (*open2)(FsContext *, const char *, int, FsCred *);
        !            79:     void (*rewinddir)(FsContext *, DIR *);
        !            80:     off_t (*telldir)(FsContext *, DIR *);
        !            81:     struct dirent *(*readdir)(FsContext *, DIR *);
        !            82:     void (*seekdir)(FsContext *, DIR *, off_t);
        !            83:     ssize_t (*preadv)(FsContext *, int, const struct iovec *, int, off_t);
        !            84:     ssize_t (*pwritev)(FsContext *, int, const struct iovec *, int, off_t);
        !            85:     int (*mkdir)(FsContext *, const char *, FsCred *);
        !            86:     int (*fstat)(FsContext *, int, struct stat *);
        !            87:     int (*rename)(FsContext *, const char *, const char *);
        !            88:     int (*truncate)(FsContext *, const char *, off_t);
        !            89:     int (*fsync)(FsContext *, int, int);
        !            90:     int (*statfs)(FsContext *s, const char *path, struct statfs *stbuf);
        !            91:     ssize_t (*lgetxattr)(FsContext *, const char *,
        !            92:                          const char *, void *, size_t);
        !            93:     ssize_t (*llistxattr)(FsContext *, const char *, void *, size_t);
        !            94:     int (*lsetxattr)(FsContext *, const char *,
        !            95:                      const char *, void *, size_t, int);
        !            96:     int (*lremovexattr)(FsContext *, const char *, const char *);
        !            97:     void *opaque;
        !            98: } FileOperations;
        !            99: 
        !           100: #endif

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