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sd-bus-errors.xml
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<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
<!--
This file is part of systemd.
Copyright 2015 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
-->
<refentry id="sd-bus-errors">
<refentryinfo>
<title>sd-bus-errors</title>
<productname>systemd</productname>
<authorgroup>
<author>
<contrib>Developer</contrib>
<firstname>Lennart</firstname>
<surname>Poettering</surname>
<email>[email protected]</email>
</author>
</authorgroup>
</refentryinfo>
<refmeta>
<refentrytitle>sd-bus-errors</refentrytitle>
<manvolnum>3</manvolnum>
</refmeta>
<refnamediv>
<refname>sd-bus-errors</refname>
<refname>SD_BUS_ERROR_FAILED</refname>
<refname>SD_BUS_ERROR_NO_MEMORY</refname>
<refname>SD_BUS_ERROR_SERVICE_UNKNOWN</refname>
<refname>SD_BUS_ERROR_NAME_HAS_NO_OWNER</refname>
<refname>SD_BUS_ERROR_NO_REPLY</refname>
<refname>SD_BUS_ERROR_IO_ERROR</refname>
<refname>SD_BUS_ERROR_BAD_ADDRESS</refname>
<refname>SD_BUS_ERROR_NOT_SUPPORTED</refname>
<refname>SD_BUS_ERROR_LIMITS_EXCEEDED</refname>
<refname>SD_BUS_ERROR_ACCESS_DENIED</refname>
<refname>SD_BUS_ERROR_AUTH_FAILED</refname>
<refname>SD_BUS_ERROR_NO_SERVER</refname>
<refname>SD_BUS_ERROR_TIMEOUT</refname>
<refname>SD_BUS_ERROR_NO_NETWORK</refname>
<refname>SD_BUS_ERROR_ADDRESS_IN_USE</refname>
<refname>SD_BUS_ERROR_DISCONNECTED</refname>
<refname>SD_BUS_ERROR_INVALID_ARGS</refname>
<refname>SD_BUS_ERROR_FILE_NOT_FOUND</refname>
<refname>SD_BUS_ERROR_FILE_EXISTS</refname>
<refname>SD_BUS_ERROR_UNKNOWN_METHOD</refname>
<refname>SD_BUS_ERROR_UNKNOWN_OBJECT</refname>
<refname>SD_BUS_ERROR_UNKNOWN_INTERFACE</refname>
<refname>SD_BUS_ERROR_UNKNOWN_PROPERTY</refname>
<refname>SD_BUS_ERROR_PROPERTY_READ_ONLY</refname>
<refname>SD_BUS_ERROR_UNIX_PROCESS_ID_UNKNOWN</refname>
<refname>SD_BUS_ERROR_INVALID_SIGNATURE</refname>
<refname>SD_BUS_ERROR_INCONSISTENT_MESSAGE</refname>
<refname>SD_BUS_ERROR_MATCH_RULE_NOT_FOUND</refname>
<refname>SD_BUS_ERROR_MATCH_RULE_INVALID</refname>
<refname>SD_BUS_ERROR_INTERACTIVE_AUTHORIZATION_REQUIRED</refname>
<refpurpose>Standard D-Bus error names</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis>
<funcsynopsisinfo>#include <systemd/sd-bus.h></funcsynopsisinfo>
<funcsynopsisinfo>#define SD_BUS_ERROR_FAILED "org.freedesktop.DBus.Error.Failed"
#define SD_BUS_ERROR_NO_MEMORY "org.freedesktop.DBus.Error.NoMemory"
#define SD_BUS_ERROR_SERVICE_UNKNOWN "org.freedesktop.DBus.Error.ServiceUnknown"
#define SD_BUS_ERROR_NAME_HAS_NO_OWNER "org.freedesktop.DBus.Error.NameHasNoOwner"
#define SD_BUS_ERROR_NO_REPLY "org.freedesktop.DBus.Error.NoReply"
#define SD_BUS_ERROR_IO_ERROR "org.freedesktop.DBus.Error.IOError"
#define SD_BUS_ERROR_BAD_ADDRESS "org.freedesktop.DBus.Error.BadAddress"
#define SD_BUS_ERROR_NOT_SUPPORTED "org.freedesktop.DBus.Error.NotSupported"
#define SD_BUS_ERROR_LIMITS_EXCEEDED "org.freedesktop.DBus.Error.LimitsExceeded"
#define SD_BUS_ERROR_ACCESS_DENIED "org.freedesktop.DBus.Error.AccessDenied"
#define SD_BUS_ERROR_AUTH_FAILED "org.freedesktop.DBus.Error.AuthFailed"
#define SD_BUS_ERROR_NO_SERVER "org.freedesktop.DBus.Error.NoServer"
#define SD_BUS_ERROR_TIMEOUT "org.freedesktop.DBus.Error.Timeout"
#define SD_BUS_ERROR_NO_NETWORK "org.freedesktop.DBus.Error.NoNetwork"
#define SD_BUS_ERROR_ADDRESS_IN_USE "org.freedesktop.DBus.Error.AddressInUse"
#define SD_BUS_ERROR_DISCONNECTED "org.freedesktop.DBus.Error.Disconnected"
#define SD_BUS_ERROR_INVALID_ARGS "org.freedesktop.DBus.Error.InvalidArgs"
#define SD_BUS_ERROR_FILE_NOT_FOUND "org.freedesktop.DBus.Error.FileNotFound"
#define SD_BUS_ERROR_FILE_EXISTS "org.freedesktop.DBus.Error.FileExists"
#define SD_BUS_ERROR_UNKNOWN_METHOD "org.freedesktop.DBus.Error.UnknownMethod"
#define SD_BUS_ERROR_UNKNOWN_OBJECT "org.freedesktop.DBus.Error.UnknownObject"
#define SD_BUS_ERROR_UNKNOWN_INTERFACE "org.freedesktop.DBus.Error.UnknownInterface"
#define SD_BUS_ERROR_UNKNOWN_PROPERTY "org.freedesktop.DBus.Error.UnknownProperty"
#define SD_BUS_ERROR_PROPERTY_READ_ONLY "org.freedesktop.DBus.Error.PropertyReadOnly"
#define SD_BUS_ERROR_UNIX_PROCESS_ID_UNKNOWN "org.freedesktop.DBus.Error.UnixProcessIdUnknown"
#define SD_BUS_ERROR_INVALID_SIGNATURE "org.freedesktop.DBus.Error.InvalidSignature"
#define SD_BUS_ERROR_INCONSISTENT_MESSAGE "org.freedesktop.DBus.Error.InconsistentMessage"
#define SD_BUS_ERROR_MATCH_RULE_NOT_FOUND "org.freedesktop.DBus.Error.MatchRuleNotFound"
#define SD_BUS_ERROR_MATCH_RULE_INVALID "org.freedesktop.DBus.Error.MatchRuleInvalid"
#define SD_BUS_ERROR_INTERACTIVE_AUTHORIZATION_REQUIRED \
"org.freedesktop.DBus.Error.InteractiveAuthorizationRequired"</funcsynopsisinfo>
</funcsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>In addition to the error names user programs define, D-Bus
knows a number of generic, standardized error names, that are
listed below.</para>
<para>In addition to this list, in sd-bus the special error
namespace <literal>System.Error.</literal> is used to map
arbitrary Linux system errors (as defined by <citerefentry
project='man-pages'><refentrytitle>errno</refentrytitle><manvolnum>3</manvolnum></citerefentry>)
to D-Bus errors and back. For example, the error
<constant>EUCLEAN</constant> is mapped to
<literal>System.Error.EUCLEAN</literal> and back.</para>
<variablelist>
<varlistentry>
<term><varname>SD_BUS_ERROR_FAILED</varname></term>
<listitem><para>A generic error indication. See the error
message for further details. This error name should be
avoided, in favour of a more expressive error
name.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_NO_MEMORY</varname></term>
<listitem><para>A memory allocation failed, and the requested
operation could not be completed.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_SERVICE_UNKNOWN</varname></term>
<listitem><para>The contacted bus service is unknown and
cannot be activated.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_NAME_HAS_NO_OWNER</varname></term>
<listitem><para>The specified bus service name currently has
no owner.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_NO_REPLY</varname></term>
<listitem><para>A message did not receive a reply. This error
is usually generated after a timeout.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_IO_ERROR</varname></term>
<listitem><para>Generic input/output error, for example when
accessing a socket or other IO context.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_BAD_ADDRESS</varname></term>
<listitem><para>The specified D-Bus bus address string is
malformed.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_NOT_SUPPORTED</varname></term>
<listitem><para>The requested operation is not supported on
the local system.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_LIMITS_EXCEEDED</varname></term>
<listitem><para>Some limited resource has been
exhausted.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_ACCESS_DENIED</varname></term>
<listitem><para>Access to a resource has bee denied, due to security restrictions.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_AUTH_FAILED</varname></term>
<listitem><para>Authentication did not complete successfully.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_NO_SERVER</varname></term>
<listitem><para>Unable to connect to the specified server.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_TIMEOUT</varname></term>
<listitem><para>An operation timed out. Note that method calls
which timeout generate a
<varname>SD_BUS_ERROR_NO_REPLY</varname>.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_NO_NETWORK</varname></term>
<listitem><para>No network available to execute requested network operation on.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_ADDRESS_IN_USE</varname></term>
<listitem><para>The specified network address is already being listened on.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_DISCONNECTED</varname></term>
<listitem><para>The connection has been terminated.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_INVALID_ARGS</varname></term>
<listitem><para>One or more invalid arguments have been passed.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_FILE_NOT_FOUND</varname></term>
<listitem><para>The requested file could not be found.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_FILE_EXISTS</varname></term>
<listitem><para>The requested file exists already.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_UNKNOWN_METHOD</varname></term>
<listitem><para>The requested method does not exist in the selected interface.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_UNKNOWN_OBJECT</varname></term>
<listitem><para>The requested object does not exist in the selected service.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_UNKNOWN_INTERFACE</varname></term>
<listitem><para>The requested interface does not exist on the selected object.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_UNKNOWN_PROPERTY</varname></term>
<listitem><para>The requested property does not exist in the selected interface.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_PROPERTY_READ_ONLY</varname></term>
<listitem><para>A write operation was requested on a read-only property.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_UNIX_PROCESS_ID_UNKNOWN</varname></term>
<listitem><para>The requested PID is not known.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_INVALID_SIGNATURE</varname></term>
<listitem><para>The specified message signature is not
valid.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_INCONSISTENT_MESSAGE</varname></term>
<listitem><para>The passed message does not validate
correctly.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_MATCH_RULE_NOT_FOUND</varname></term>
<listitem><para>The specified match rule does not exist.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_MATCH_RULE_INVALID</varname></term>
<listitem><para>The specified match rule is invalid.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>SD_BUS_ERROR_INTERACTIVE_AUTHORIZATION_REQUIRED</varname></term>
<listitem><para>Access to the requested operation is not
permitted, however, it might be available after interactive
authentication. This is usually returned by method calls
supporting a framework for additional interactive
authorization, when interactive authorization was not enabled
with the
<citerefentry><refentrytitle>sd_bus_message_set_allow_interactive_authorization</refentrytitle><manvolnum>3</manvolnum></citerefentry>
for the method call message.</para></listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Notes</title>
<para>The various error definitions described here are available
as a shared library, which can be compiled and linked to with the
<constant>libsystemd</constant> <citerefentry
project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
file.</para>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>sd_bus_error</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry><refentrytitle>sd_bus_message_set_allow_interactive_authorization</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry project='man-pages'><refentrytitle>errno</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
<citerefentry project='die-net'><refentrytitle>strerror</refentrytitle><manvolnum>3</manvolnum></citerefentry>
</para>
</refsect1>
</refentry>