hw/9pfs/9p-proxy.h

   1 /*
   2  * 9p Proxy callback
   3  *
   4  * Copyright IBM, Corp. 2011
   5  *
   6  * Authors:
   7  * M. Mohan Kumar <mohan@in.ibm.com>
   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 /*
  14  * NOTE: The 9p 'proxy' backend is deprecated (since QEMU 8.1) and will be
  15  * removed in a future version of QEMU!
  16  */
  17
  18 #ifndef QEMU_9P_PROXY_H
  19 #define QEMU_9P_PROXY_H
  20
  21 #define PROXY_MAX_IO_SZ (64 * 1024)
  22 #define V9FS_FD_VALID INT_MAX
  23
  24 /*
  25  * proxy iovec only support one element and
  26  * marsha/unmarshal doesn't do little endian conversion.
  27  */
  28 #define proxy_unmarshal(in_sg, offset, fmt, args...) \
  29     v9fs_iov_unmarshal(in_sg, 1, offset, 0, fmt, ##args)
  30 #define proxy_marshal(out_sg, offset, fmt, args...) \
  31     v9fs_iov_marshal(out_sg, 1, offset, 0, fmt, ##args)
  32
  33 union MsgControl {
  34     struct cmsghdr cmsg;
  35     char control[CMSG_SPACE(sizeof(int))];
  36 };
  37
  38 typedef struct {
  39     uint32_t type;
  40     uint32_t size;
  41 } ProxyHeader;
  42
  43 #define PROXY_HDR_SZ (sizeof(ProxyHeader))
  44
  45 enum {
  46     T_SUCCESS = 0,
  47     T_ERROR,
  48     T_OPEN,
  49     T_CREATE,
  50     T_MKNOD,
  51     T_MKDIR,
  52     T_SYMLINK,
  53     T_LINK,
  54     T_LSTAT,
  55     T_READLINK,
  56     T_STATFS,
  57     T_CHMOD,
  58     T_CHOWN,
  59     T_TRUNCATE,
  60     T_UTIME,
  61     T_RENAME,
  62     T_REMOVE,
  63     T_LGETXATTR,
  64     T_LLISTXATTR,
  65     T_LSETXATTR,
  66     T_LREMOVEXATTR,
  67     T_GETVERSION,
  68 };
  69
  70 typedef struct {
  71     uint64_t st_dev;
  72     uint64_t st_ino;
  73     uint64_t st_nlink;
  74     uint32_t st_mode;
  75     uint32_t st_uid;
  76     uint32_t st_gid;
  77     uint64_t st_rdev;
  78     uint64_t st_size;
  79     uint64_t st_blksize;
  80     uint64_t st_blocks;
  81     uint64_t st_atim_sec;
  82     uint64_t st_atim_nsec;
  83     uint64_t st_mtim_sec;
  84     uint64_t st_mtim_nsec;
  85     uint64_t st_ctim_sec;
  86     uint64_t st_ctim_nsec;
  87 } ProxyStat;
  88
  89 typedef struct {
  90     uint64_t f_type;
  91     uint64_t f_bsize;
  92     uint64_t f_blocks;
  93     uint64_t f_bfree;
  94     uint64_t f_bavail;
  95     uint64_t f_files;
  96     uint64_t f_ffree;
  97     uint64_t f_fsid[2];
  98     uint64_t f_namelen;
  99     uint64_t f_frsize;
 100 } ProxyStatFS;
 101 #endif