1 /*
2 *
3 * BlueZ - Bluetooth protocol stack for Linux
4 *
5 * Copyright (C) 2006-2007 Nokia Corporation
6 * Copyright (C) 2004-2008 Marcel Holtmann <marcel@holtmann.org>
7 * Copyright (C) 2007-2008 Fabien Chevalier <fabchevalier@free.fr>
8 *
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 *
24 */
25
26 #ifdef HAVE_CONFIG_H
27 #include <config.h>
28 #endif
29
30 #include <stdio.h>
31 #include <string.h>
32 #include <errno.h>
33
34 #include <gdbus.h>
35
36 #include "error.h"
37
create_errno_message(DBusMessage * msg,int err)38 DBusMessage *create_errno_message(DBusMessage *msg, int err)
39 {
40 return g_dbus_create_error(msg, ERROR_INTERFACE ".Failed",
41 strerror(err));
42 }
43
44 /**
45 org.bluez.Error.ConnectionAttemptFailed:
46
47 An unexpected error (other than DeviceUnreachable) error has occured while
48 attempting a connection to a device
49 */
error_connection_attempt_failed(DBusConnection * conn,DBusMessage * msg,int err)50 DBusHandlerResult error_connection_attempt_failed(DBusConnection *conn, DBusMessage *msg, int err)
51 {
52 return error_common_reply(conn, msg,
53 ERROR_INTERFACE ".ConnectionAttemptFailed",
54 err > 0 ? strerror(err) : "Connection attempt failed");
55 }
56
57 /**
58 org.bluez.Error.NotSupported:
59
60 The remote device does not support the expected feature.
61 Examples of use: trying to connect to audio device while audio is not
62 declared in device sdp record.
63 */
error_not_supported(DBusConnection * conn,DBusMessage * msg)64 DBusHandlerResult error_not_supported(DBusConnection *conn, DBusMessage *msg)
65 {
66 return error_common_reply(conn, msg, ERROR_INTERFACE ".NotSupported",
67 "Not supported");
68 }
69
70 /**
71 org.bluez.Error.Canceled:
72
73 The operation was canceled.
74 Examples of use : autorization process canceled, connection canceled
75 */
error_canceled(DBusConnection * conn,DBusMessage * msg,const char * str)76 DBusHandlerResult error_canceled(DBusConnection *conn, DBusMessage *msg,
77 const char *str)
78 {
79 return error_common_reply(conn, msg, ERROR_INTERFACE ".Canceled", str);
80 }
81
82 /**
83 org.bluez.Error.Failed:
84
85 This is a the most generic error.
86 desc filed is MANDATORY
87 */
error_failed(DBusConnection * conn,DBusMessage * msg,const char * desc)88 DBusHandlerResult error_failed(DBusConnection *conn, DBusMessage *msg,
89 const char * desc)
90 {
91 return error_common_reply(conn, msg, ERROR_INTERFACE ".Failed", desc);
92 }
93
94 /**
95 org.bluez.Error.Failed:
96
97 This is a the most generic error, instantiated form a UNIX errno number.
98 */
error_failed_errno(DBusConnection * conn,DBusMessage * msg,int err)99 DBusHandlerResult error_failed_errno(DBusConnection *conn, DBusMessage *msg,
100 int err)
101 {
102 const char *desc = strerror(err);
103
104 return error_failed(conn, msg, desc);
105 }
106
107 /* Helper function - internal use only */
error_common_reply(DBusConnection * conn,DBusMessage * msg,const char * name,const char * descr)108 DBusHandlerResult error_common_reply(DBusConnection *conn, DBusMessage *msg,
109 const char *name, const char *descr)
110 {
111 DBusMessage *derr;
112 dbus_bool_t ret;
113
114 if (!conn || !msg)
115 return DBUS_HANDLER_RESULT_HANDLED;
116
117 derr = dbus_message_new_error(msg, name, descr);
118 if (!derr)
119 return DBUS_HANDLER_RESULT_NEED_MEMORY;
120
121 ret = dbus_connection_send(conn, derr, NULL);
122
123 dbus_message_unref(derr);
124
125 return DBUS_HANDLER_RESULT_HANDLED;
126 }
127