lib/libhgfs/const.h

   1 /* Part of libhgfs - (c) 2009, D.C. van Moolenbroek */
   2
   3 /* Various macros used here and there */
   4 #define MAKELONG(a,b) ((a) | ((b) << 16))
   5 #define HIWORD(d) ((d) >> 16)
   6 #define LOWORD(d) ((d) & 0xffff)
   7 #define BYTES(a,b,c,d) ((a) | ((b) << 8) | ((c) << 16) | ((d) << 24))
   8
   9 /* Valid channel types for channel_open() */
  10 #define CH_IN BYTES('T', 'C', 'L', 'O')
  11 #define CH_OUT BYTES('R', 'P', 'C', 'I')
  12
  13 /* RPC constants */
  14 #define RPC_BUF_SIZE 6134                       /* max size of RPC request */
  15 #define RPC_HDR_SIZE 10                         /* RPC HGFS header size */
  16
  17 /* RPC macros. These NEED NOT be portable. VMware only does x86(-64) anyway. */
  18 /* ..all this because ACK can't pack structures :( */
  19 #define RPC_NEXT8 *(((u8_t*)(++rpc_ptr))-1)     /* get/set next byte */
  20 #define RPC_NEXT16 *(((u16_t*)(rpc_ptr+=2))-1)  /* get/set next short */
  21 #define RPC_NEXT32 *(((u32_t*)(rpc_ptr+=4))-1)  /* get/set next long */
  22 #define RPC_LEN (rpc_ptr - rpc_buf)             /* request length thus far */
  23 #define RPC_ADVANCE(n) rpc_ptr += n             /* skip n bytes in buffer */
  24 #define RPC_PTR (rpc_ptr)                       /* pointer to next data */
  25 #define RPC_RESET rpc_ptr = rpc_buf             /* start at beginning */
  26 #define RPC_REQUEST(r) \
  27   RPC_RESET; \
  28   RPC_NEXT8 = 'f'; \
  29   RPC_NEXT8 = ' '; \
  30   RPC_NEXT32 = 0; \
  31   RPC_NEXT32 = r;                               /* start a RPC request */
  32
  33 /* HGFS requests */
  34 enum {
  35   HGFS_REQ_OPEN,
  36   HGFS_REQ_READ,
  37   HGFS_REQ_WRITE,
  38   HGFS_REQ_CLOSE,
  39   HGFS_REQ_OPENDIR,
  40   HGFS_REQ_READDIR,
  41   HGFS_REQ_CLOSEDIR,
  42   HGFS_REQ_GETATTR,
  43   HGFS_REQ_SETATTR,
  44   HGFS_REQ_MKDIR,
  45   HGFS_REQ_UNLINK,
  46   HGFS_REQ_RMDIR,
  47   HGFS_REQ_RENAME,
  48   HGFS_REQ_QUERYVOL
  49 };
  50
  51 /* HGFS open types */
  52 enum {
  53   HGFS_OPEN_TYPE_O,
  54   HGFS_OPEN_TYPE_OT,
  55   HGFS_OPEN_TYPE_CO,
  56   HGFS_OPEN_TYPE_C,
  57   HGFS_OPEN_TYPE_COT
  58 };
  59
  60 /* HGFS mode/perms conversion macros */
  61 #define HGFS_MODE_TO_PERM(m) (((m) & S_IRWXU) >> 6)
  62 #define HGFS_PERM_TO_MODE(p) (((p) << 6) & S_IRWXU)
  63
  64 /* HGFS attribute flags */
  65 #define HGFS_ATTR_SIZE          0x01    /* get/set file size */
  66 #define HGFS_ATTR_CRTIME        0x02    /* get/set file creation time */
  67 #define HGFS_ATTR_ATIME         0x04    /* get/set file access time */
  68 #define HGFS_ATTR_MTIME         0x08    /* get/set file modification time */
  69 #define HGFS_ATTR_CTIME         0x10    /* get/set file change time */
  70 #define HGFS_ATTR_MODE          0x20    /* get/set file mode */
  71 #define HGFS_ATTR_ATIME_SET     0x40    /* set specific file access time */
  72 #define HGFS_ATTR_MTIME_SET     0x80    /* set specific file modify time */