src/libsystemd-bus/sd-bus-protocol.h

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 #ifndef foosdbusprotocolhfoo
   4 #define foosdbusprotocolhfoo
   5
   6 /***
   7   This file is part of systemd.
   8
   9   Copyright 2013 Lennart Poettering
  10
  11   systemd is free software; you can redistribute it and/or modify it
  12   under the terms of the GNU Lesser General Public License as published by
  13   the Free Software Foundation; either version 2.1 of the License, or
  14   (at your option) any later version.
  15
  16   systemd is distributed in the hope that it will be useful, but
  17   WITHOUT ANY WARRANTY; without even the implied warranty of
  18   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  19   Lesser General Public License for more details.
  20
  21   You should have received a copy of the GNU Lesser General Public License
  22   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  23 ***/
  24
  25 #include <endian.h>
  26
  27 /* Types of message */
  28
  29 enum {
  30         _SD_BUS_MESSAGE_TYPE_INVALID = 0,
  31         SD_BUS_MESSAGE_TYPE_METHOD_CALL,
  32         SD_BUS_MESSAGE_TYPE_METHOD_RETURN,
  33         SD_BUS_MESSAGE_TYPE_METHOD_ERROR,
  34         SD_BUS_MESSAGE_TYPE_SIGNAL,
  35         _SD_BUS_MESSAGE_TYPE_MAX
  36 };
  37
  38 /* Primitive types */
  39
  40 enum {
  41         _SD_BUS_TYPE_INVALID         = 0,
  42         SD_BUS_TYPE_BYTE             = 'y',
  43         SD_BUS_TYPE_BOOLEAN          = 'b',
  44         SD_BUS_TYPE_INT16            = 'n',
  45         SD_BUS_TYPE_UINT16           = 'q',
  46         SD_BUS_TYPE_INT32            = 'i',
  47         SD_BUS_TYPE_UINT32           = 'u',
  48         SD_BUS_TYPE_INT64            = 'x',
  49         SD_BUS_TYPE_UINT64           = 't',
  50         SD_BUS_TYPE_DOUBLE           = 'd',
  51         SD_BUS_TYPE_STRING           = 's',
  52         SD_BUS_TYPE_OBJECT_PATH      = 'o',
  53         SD_BUS_TYPE_SIGNATURE        = 'g',
  54         SD_BUS_TYPE_UNIX_FD          = 'h',
  55         SD_BUS_TYPE_ARRAY            = 'a',
  56         SD_BUS_TYPE_VARIANT          = 'v',
  57         SD_BUS_TYPE_STRUCT           = 'r', /* not actually used in signatures */
  58         SD_BUS_TYPE_STRUCT_BEGIN     = '(',
  59         SD_BUS_TYPE_STRUCT_END       = ')',
  60         SD_BUS_TYPE_DICT_ENTRY       = 'e', /* not actually used in signatures */
  61         SD_BUS_TYPE_DICT_ENTRY_BEGIN = '{',
  62         SD_BUS_TYPE_DICT_ENTRY_END   = '}',
  63 };
  64
  65 /* Endianess */
  66
  67 enum {
  68         _SD_BUS_INVALID_ENDIAN = 0,
  69         SD_BUS_LITTLE_ENDIAN   = 'l',
  70         SD_BUS_BIG_ENDIAN      = 'B',
  71 #if __BYTE_ORDER == __BIG_ENDIAN
  72         SD_BUS_NATIVE_ENDIAN   = SD_BUS_BIG_ENDIAN,
  73         SD_BUS_REVERSE_ENDIAN  = SD_BUS_LITTLE_ENDIAN
  74 #else
  75         SD_BUS_NATIVE_ENDIAN   = SD_BUS_LITTLE_ENDIAN,
  76         SD_BUS_REVERSE_ENDIAN  = SD_BUS_BIG_ENDIAN
  77 #endif
  78 };
  79
  80 /* Flags */
  81
  82 enum {
  83         SD_BUS_MESSAGE_NO_REPLY_EXPECTED = 1,
  84         SD_BUS_MESSAGE_NO_AUTO_START = 2
  85 };
  86
  87 /* Header fields */
  88
  89 enum {
  90         _SD_BUS_MESSAGE_HEADER_INVALID = 0,
  91         SD_BUS_MESSAGE_HEADER_PATH,
  92         SD_BUS_MESSAGE_HEADER_INTERFACE,
  93         SD_BUS_MESSAGE_HEADER_MEMBER,
  94         SD_BUS_MESSAGE_HEADER_ERROR_NAME,
  95         SD_BUS_MESSAGE_HEADER_REPLY_SERIAL,
  96         SD_BUS_MESSAGE_HEADER_DESTINATION,
  97         SD_BUS_MESSAGE_HEADER_SENDER,
  98         SD_BUS_MESSAGE_HEADER_SIGNATURE,
  99         SD_BUS_MESSAGE_HEADER_UNIX_FDS,
 100         _SD_BUS_MESSAGE_HEADER_MAX
 101 };
 102
 103 #endif