hw/9pfs/virtio-9p-proxy.h

   1 /*
   2  * Virtio 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 #ifndef _QEMU_VIRTIO_9P_PROXY_H
  13 #define _QEMU_VIRTIO_9P_PROXY_H
  14
  15 #define PROXY_MAX_IO_SZ (64 * 1024)
  16 #define V9FS_FD_VALID INT_MAX
  17
  18 /*
  19  * proxy iovec only support one element and
  20  * marsha/unmarshal doesn't do little endian conversion.
  21  */
  22 #define proxy_unmarshal(in_sg, offset, fmt, args...) \
  23     v9fs_unmarshal(in_sg, 1, offset, 0, fmt, ##args)
  24 #define proxy_marshal(out_sg, offset, fmt, args...) \
  25     v9fs_marshal(out_sg, 1, offset, 0, fmt, ##args)
  26
  27 union MsgControl {
  28     struct cmsghdr cmsg;
  29     char control[CMSG_SPACE(sizeof(int))];
  30 };
  31
  32 typedef struct {
  33     uint32_t type;
  34     uint32_t size;
  35 } ProxyHeader;
  36
  37 #define PROXY_HDR_SZ (sizeof(ProxyHeader))
  38
  39 enum {
  40     T_SUCCESS = 0,
  41     T_ERROR,
  42     T_OPEN,
  43     T_CREATE,
  44     T_MKNOD,
  45     T_MKDIR,
  46     T_SYMLINK,
  47     T_LINK,
  48     T_LSTAT,
  49     T_READLINK,
  50     T_STATFS,
  51     T_CHMOD,
  52     T_CHOWN,
  53     T_TRUNCATE,
  54     T_UTIME,
  55     T_RENAME,
  56     T_REMOVE,
  57     T_LGETXATTR,
  58     T_LLISTXATTR,
  59     T_LSETXATTR,
  60     T_LREMOVEXATTR,
  61     T_GETVERSION,
  62 };
  63
  64 typedef struct {
  65     uint64_t st_dev;
  66     uint64_t st_ino;
  67     uint64_t st_nlink;
  68     uint32_t st_mode;
  69     uint32_t st_uid;
  70     uint32_t st_gid;
  71     uint64_t st_rdev;
  72     uint64_t st_size;
  73     uint64_t st_blksize;
  74     uint64_t st_blocks;
  75     uint64_t st_atim_sec;
  76     uint64_t st_atim_nsec;
  77     uint64_t st_mtim_sec;
  78     uint64_t st_mtim_nsec;
  79     uint64_t st_ctim_sec;
  80     uint64_t st_ctim_nsec;
  81 } ProxyStat;
  82
  83 typedef struct {
  84     uint64_t f_type;
  85     uint64_t f_bsize;
  86     uint64_t f_blocks;
  87     uint64_t f_bfree;
  88     uint64_t f_bavail;
  89     uint64_t f_files;
  90     uint64_t f_ffree;
  91     uint64_t f_fsid[2];
  92     uint64_t f_namelen;
  93     uint64_t f_frsize;
  94 } ProxyStatFS;
  95 #endif