| 1 | /** @file
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| 2 | *
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| 3 | * Module to dynamically load libdbus and load all symbols
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| 4 | * which are needed by VirtualBox.
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| 5 | */
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| 6 |
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| 7 | /*
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| 8 | * Copyright (C) 2008 Sun Microsystems, Inc.
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| 9 | *
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| 10 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 11 | * available from http://www.virtualbox.org. This file is free software;
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| 12 | * you can redistribute it and/or modify it under the terms of the GNU
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| 13 | * General Public License (GPL) as published by the Free Software
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| 14 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 15 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 16 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 17 | *
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| 18 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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| 19 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
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| 20 | * additional information or have any questions.
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| 21 | */
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| 22 |
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| 23 | #ifndef ____H_VBOX_DBUS
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| 24 | #define ____H_VBOX_DBUS
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| 25 |
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| 26 | #include <stdint.h>
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| 27 |
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| 28 | #define LIB_DBUS_1_2 "libdbus-1.so.2" /* This should be compatible */
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| 29 | #define LIB_DBUS_1_3 "libdbus-1.so.3"
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| 30 |
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| 31 | /** Types and defines from the dbus header files which we need. These are
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| 32 | * taken more or less verbatim from the DBus public interface header files. */
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| 33 | struct DBusError
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| 34 | {
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| 35 | const char *name;
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| 36 | const char *message;
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| 37 | unsigned int dummy1 : 1;
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| 38 | unsigned int dummy2 : 1;
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| 39 | unsigned int dummy3 : 1;
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| 40 | unsigned int dummy4 : 1;
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| 41 | unsigned int dummy5 : 1;
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| 42 | void *padding1;
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| 43 | };
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| 44 | struct DBusConnection;
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| 45 | typedef struct DBusConnection DBusConnection;
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| 46 | typedef uint32_t dbus_bool_t;
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| 47 | typedef uint32_t dbus_uint32_t;
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| 48 | typedef enum { DBUS_BUS_SESSON, DBUS_BUS_SYSTEM, DBUS_BUS_STARTER } DBusBusType;
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| 49 | struct DBusMessage;
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| 50 | typedef struct DBusMessage DBusMessage;
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| 51 | struct DBusMessageIter
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| 52 | {
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| 53 | void *dummy1;
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| 54 | void *dummy2;
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| 55 | dbus_uint32_t dummy3;
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| 56 | int dummy4;
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| 57 | int dummy5;
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| 58 | int dummy6;
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| 59 | int dummy7;
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| 60 | int dummy8;
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| 61 | int dummy9;
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| 62 | int dummy10;
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| 63 | int dummy11;
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| 64 | int pad1;
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| 65 | int pad2;
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| 66 | void *pad3;
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| 67 | };
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| 68 | typedef struct DBusMessageIter DBusMessageIter;
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| 69 |
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| 70 | #define DBUS_ERROR_NO_MEMORY "org.freedesktop.DBus.Error.NoMemory"
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| 71 | #define DBUS_TYPE_STRING ((int) 's')
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| 72 | #define DBUS_TYPE_ARRAY ((int) 'a')
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| 73 | #define DBUS_TYPE_DICT_ENTRY ((int) 'e')
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| 74 |
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| 75 | typedef enum
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| 76 | {
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| 77 | DBUS_HANDLER_RESULT_HANDLED,
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| 78 | DBUS_HANDLER_RESULT_NOT_YET_HANDLED,
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| 79 | DBUS_HANDLER_RESULT_NEED_MEMORY
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| 80 | } DBusHandlerResult;
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| 81 |
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| 82 | typedef DBusHandlerResult (*DBusHandleMessageFunction) (DBusConnection *,
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| 83 | DBusMessage *, void *);
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| 84 | typedef void (*DBusFreeFunction) (void *);
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| 85 |
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| 86 | /** The following are the symbols which we need from libdbus-1. */
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| 87 | extern void (*dbus_error_init)(DBusError *);
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| 88 | extern DBusConnection *(*dbus_bus_get)(DBusBusType, DBusError *);
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| 89 | extern DBusConnection *(*dbus_bus_get_private)(DBusBusType, DBusError *);
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| 90 | extern void (*dbus_error_free)(DBusError *);
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| 91 | extern void (*dbus_connection_unref)(DBusConnection *);
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| 92 | extern void (*dbus_connection_close)(DBusConnection *);
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| 93 | extern void (*dbus_connection_set_exit_on_disconnect)(DBusConnection *, dbus_bool_t);
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| 94 | extern dbus_bool_t (*dbus_bus_name_has_owner)(DBusConnection *, const char *,
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| 95 | DBusError *);
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| 96 | extern void (*dbus_bus_add_match)(DBusConnection *, const char *, DBusError *);
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| 97 | extern void (*dbus_bus_remove_match)(DBusConnection *, const char *, DBusError *);
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| 98 | extern void (*dbus_message_unref)(DBusMessage *);
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| 99 | extern DBusMessage* (*dbus_message_new_method_call)(const char *, const char *,
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| 100 | const char *, const char *);
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| 101 | extern void (*dbus_message_iter_init_append)(DBusMessage *, DBusMessageIter *);
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| 102 | extern dbus_bool_t (*dbus_message_iter_append_basic)(DBusMessageIter *, int,
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| 103 | const void *);
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| 104 | extern DBusMessage * (*dbus_connection_send_with_reply_and_block)(DBusConnection *,
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| 105 | DBusMessage *, int,
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| 106 | DBusError *error);
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| 107 | extern dbus_bool_t (*dbus_message_iter_init) (DBusMessage *, DBusMessageIter *);
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| 108 | extern int (*dbus_message_iter_get_arg_type) (DBusMessageIter *);
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| 109 | extern int (*dbus_message_iter_get_element_type) (DBusMessageIter *);
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| 110 | extern void (*dbus_message_iter_recurse) (DBusMessageIter *, DBusMessageIter *);
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| 111 | extern void (*dbus_message_iter_get_basic) (DBusMessageIter *, void *);
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| 112 | extern dbus_bool_t (*dbus_message_iter_next) (DBusMessageIter *);
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| 113 | extern dbus_bool_t (*dbus_connection_add_filter) (DBusConnection *, DBusHandleMessageFunction,
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| 114 | void *, DBusFreeFunction);
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| 115 | extern void (*dbus_connection_remove_filter) (DBusConnection *, DBusHandleMessageFunction,
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| 116 | void *);
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| 117 | extern dbus_bool_t (*dbus_connection_read_write_dispatch) (DBusConnection *, int);
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| 118 | extern dbus_bool_t (*dbus_message_is_signal) (DBusMessage *, const char *, const char *);
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| 119 | extern DBusMessage *(*dbus_connection_pop_message)(DBusConnection *);
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| 120 |
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| 121 | /**
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| 122 | * Checks whether libdbus is present and if so loads all symbols we need. This
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| 123 | * should be called before making any calls to libdbus if that library is being
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| 124 | * loaded at runtime.
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| 125 | * @returns true if libdbus was found, false otherwise.
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| 126 | */
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| 127 | extern bool VBoxDBusCheckPresence(void);
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| 128 | /** Wrapper around dbus_connection_unref. We need this to use it as a free
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| 129 | * function in auto pointers, as a function pointer won't wash here. */
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| 130 | extern void VBoxDBusConnectionUnref(DBusConnection *pConnection);
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| 131 | /** Wrapper around dbus_message_unref. We need this to use it as a free
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| 132 | * function in auto pointers, as a function pointer won't wash here. */
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| 133 | extern void VBoxDBusMessageUnref(DBusMessage *pMessage);
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| 134 |
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| 135 | #endif /* ____H_VBOX_DBUS not defined */
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| 136 | /* vi: set tabstop=4 shiftwidth=4 expandtab: */
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