src/libsystemd-bus/bus-protocol.h

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 #pragma once
   4
   5 /***
   6   This file is part of systemd.
   7
   8   Copyright 2013 Lennart Poettering
   9
  10   systemd is free software; you can redistribute it and/or modify it
  11   under the terms of the GNU Lesser General Public License as published by
  12   the Free Software Foundation; either version 2.1 of the License, or
  13   (at your option) any later version.
  14
  15   systemd is distributed in the hope that it will be useful, but
  16   WITHOUT ANY WARRANTY; without even the implied warranty of
  17   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18   Lesser General Public License for more details.
  19
  20   You should have received a copy of the GNU Lesser General Public License
  21   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  22 ***/
  23
  24
  25 /* Endianness */
  26
  27 enum {
  28         _BUS_INVALID_ENDIAN = 0,
  29         BUS_LITTLE_ENDIAN   = 'l',
  30         BUS_BIG_ENDIAN      = 'B',
  31 #if __BYTE_ORDER == __BIG_ENDIAN
  32         BUS_NATIVE_ENDIAN   = BUS_BIG_ENDIAN,
  33         BUS_REVERSE_ENDIAN  = BUS_LITTLE_ENDIAN
  34 #else
  35         BUS_NATIVE_ENDIAN   = BUS_LITTLE_ENDIAN,
  36         BUS_REVERSE_ENDIAN  = BUS_BIG_ENDIAN
  37 #endif
  38 };
  39
  40 /* Flags */
  41
  42 enum {
  43         BUS_MESSAGE_NO_REPLY_EXPECTED = 1,
  44         BUS_MESSAGE_NO_AUTO_START = 2
  45 };
  46
  47 /* Header fields */
  48
  49 enum {
  50         _BUS_MESSAGE_HEADER_INVALID = 0,
  51         BUS_MESSAGE_HEADER_PATH,
  52         BUS_MESSAGE_HEADER_INTERFACE,
  53         BUS_MESSAGE_HEADER_MEMBER,
  54         BUS_MESSAGE_HEADER_ERROR_NAME,
  55         BUS_MESSAGE_HEADER_REPLY_SERIAL,
  56         BUS_MESSAGE_HEADER_DESTINATION,
  57         BUS_MESSAGE_HEADER_SENDER,
  58         BUS_MESSAGE_HEADER_SIGNATURE,
  59         BUS_MESSAGE_HEADER_UNIX_FDS,
  60         _BUS_MESSAGE_HEADER_MAX
  61 };
  62
  63 /* RequestName returns */
  64 enum  {
  65         BUS_NAME_PRIMARY_OWNER = 1,
  66         BUS_NAME_IN_QUEUE = 2,
  67         BUS_NAME_EXISTS = 3,
  68         BUS_NAME_ALREADY_OWNER = 4
  69 };
  70
  71 /* ReleaseName returns */
  72 enum {
  73         BUS_NAME_RELEASED = 1,
  74         BUS_NAME_NON_EXISTENT = 2,
  75         BUS_NAME_NOT_OWNER = 3,
  76 };
  77
  78 #define BUS_INTROSPECT_DOCTYPE                                       \
  79         "<!DOCTYPE node PUBLIC \"-//freedesktop//DTD D-BUS Object Introspection 1.0//EN\"\n" \
  80         "\"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd\">\n"
  81
  82 #define BUS_INTROSPECT_INTERFACE_PEER                                \
  83         " <interface name=\"org.freedesktop.DBus.Peer\">\n"             \
  84         "  <method name=\"Ping\"/>\n"                                   \
  85         "  <method name=\"GetMachineId\">\n"                            \
  86         "   <arg type=\"s\" name=\"machine_uuid\" direction=\"out\"/>\n" \
  87         "  </method>\n"                                                 \
  88         " </interface>\n"
  89
  90 #define BUS_INTROSPECT_INTERFACE_INTROSPECTABLE                      \
  91         " <interface name=\"org.freedesktop.DBus.Introspectable\">\n"   \
  92         "  <method name=\"Introspect\">\n"                              \
  93         "   <arg name=\"data\" type=\"s\" direction=\"out\"/>\n"        \
  94         "  </method>\n"                                                 \
  95         " </interface>\n"
  96
  97 #define BUS_INTROSPECT_INTERFACE_PROPERTIES                          \
  98         " <interface name=\"org.freedesktop.DBus.Properties\">\n"       \
  99         "  <method name=\"Get\">\n"                                     \
 100         "   <arg name=\"interface\" direction=\"in\" type=\"s\"/>\n"    \
 101         "   <arg name=\"property\" direction=\"in\" type=\"s\"/>\n"     \
 102         "   <arg name=\"value\" direction=\"out\" type=\"v\"/>\n"       \
 103         "  </method>\n"                                                 \
 104         "  <method name=\"GetAll\">\n"                                  \
 105         "   <arg name=\"interface\" direction=\"in\" type=\"s\"/>\n"    \
 106         "   <arg name=\"properties\" direction=\"out\" type=\"a{sv}\"/>\n" \
 107         "  </method>\n"                                                 \
 108         "  <method name=\"Set\">\n"                                     \
 109         "   <arg name=\"interface\" direction=\"in\" type=\"s\"/>\n"    \
 110         "   <arg name=\"property\" direction=\"in\" type=\"s\"/>\n"     \
 111         "   <arg name=\"value\" direction=\"in\" type=\"v\"/>\n"        \
 112         "  </method>\n"                                                 \
 113         "  <signal name=\"PropertiesChanged\">\n"                       \
 114         "   <arg type=\"s\" name=\"interface\"/>\n"                     \
 115         "   <arg type=\"a{sv}\" name=\"changed_properties\"/>\n"        \
 116         "   <arg type=\"as\" name=\"invalidated_properties\"/>\n"       \
 117         "  </signal>\n"                                                 \
 118         " </interface>\n"
 119
 120 #define BUS_INTROSPECT_INTERFACE_OBJECT_MANAGER                      \
 121         " <interface name=\"org.freedesktop.DBus.ObjectManager\">\n"    \
 122         "  <method name=\"GetManagedObjects\">\n"                       \
 123         "   <arg type=\"a{oa{sa{sv}}}\" name=\"object_paths_interfaces_and_properties\" direction=\"out\"/>\n" \
 124         "  </method>\n"                                                 \
 125         "  <signal name=\"InterfacesAdded\">\n"                         \
 126         "   <arg type=\"o\" name=\"object_path\"/>\n"                   \
 127         "   <arg type=\"a{sa{sv}}\" name=\"interfaces_and_properties\"/>\n" \
 128         "  </signal>\n"                                                 \
 129         "  <signal name=\"InterfacesRemoved\">\n"                       \
 130         "   <arg type=\"o\" name=\"object_path\"/>\n"                   \
 131         "   <arg type=\"as\" name=\"interfaces\"/>\n"                   \
 132         "  </signal>\n"                                                 \
 133         " </interface>\n"