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/*

 * Virtio 9p Proxy callback

 *

 * Copyright IBM, Corp. 2011

 *

 * Authors:

 * M. Mohan Kumar <mohan@in.ibm.com>

 *

 * This work is licensed under the terms of the GNU GPL, version 2.  See

 * the COPYING file in the top-level directory.

 */

#ifndef _QEMU_VIRTIO_9P_PROXY_H

#define _QEMU_VIRTIO_9P_PROXY_H

#define PROXY_MAX_IO_SZ (64 * 1024)

#define V9FS_FD_VALID INT_MAX

/*

 * proxy iovec only support one element and

 * marsha/unmarshal doesn't do little endian conversion.

 */

#define proxy_unmarshal(in_sg, offset, fmt, args...) \

    v9fs_unmarshal(in_sg, 1, offset, 0, fmt, ##args)

#define proxy_marshal(out_sg, offset, fmt, args...) \

    v9fs_marshal(out_sg, 1, offset, 0, fmt, ##args)

union MsgControl {

    struct cmsghdr cmsg;

    char control[CMSG_SPACE(sizeof(int))];

};

typedef struct {

    uint32_t type;

    uint32_t size;

} ProxyHeader;

#define PROXY_HDR_SZ (sizeof(ProxyHeader))

enum {

    T_SUCCESS = 0,

    T_ERROR,

    T_OPEN,

    T_CREATE,

    T_MKNOD,

    T_MKDIR,

    T_SYMLINK,

    T_LINK,

    T_LSTAT,

    T_READLINK,

    T_STATFS,

    T_CHMOD,

    T_CHOWN,

    T_TRUNCATE,

    T_UTIME,

    T_RENAME,

    T_REMOVE,

    T_LGETXATTR,

    T_LLISTXATTR,

    T_LSETXATTR,

    T_LREMOVEXATTR,

    T_GETVERSION,

};

typedef struct {

    uint64_t st_dev;

    uint64_t st_ino;

    uint64_t st_nlink;

    uint32_t st_mode;

    uint32_t st_uid;

    uint32_t st_gid;

    uint64_t st_rdev;

    uint64_t st_size;

    uint64_t st_blksize;

    uint64_t st_blocks;

    uint64_t st_atim_sec;

    uint64_t st_atim_nsec;

    uint64_t st_mtim_sec;

    uint64_t st_mtim_nsec;

    uint64_t st_ctim_sec;

    uint64_t st_ctim_nsec;

} ProxyStat;

typedef struct {

    uint64_t f_type;

    uint64_t f_bsize;

    uint64_t f_blocks;

    uint64_t f_bfree;

    uint64_t f_bavail;

    uint64_t f_files;

    uint64_t f_ffree;

    uint64_t f_fsid[2];

    uint64_t f_namelen;

    uint64_t f_frsize;

} ProxyStatFS;

#endif