man/sd-bus-errors.xml

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   8   Copyright 2015 Lennart Poettering
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  23
  24 <refentry id="sd-bus-errors">
  25
  26   <refentryinfo>
  27     <title>sd-bus-errors</title>
  28     <productname>systemd</productname>
  29
  30     <authorgroup>
  31       <author>
  32         <contrib>Developer</contrib>
  33         <firstname>Lennart</firstname>
  34         <surname>Poettering</surname>
  35         <email>lennart@poettering.net</email>
  36       </author>
  37     </authorgroup>
  38   </refentryinfo>
  39
  40   <refmeta>
  41     <refentrytitle>sd-bus-errors</refentrytitle>
  42     <manvolnum>3</manvolnum>
  43   </refmeta>
  44
  45   <refnamediv>
  46     <refname>sd-bus-errors</refname>
  47     <refname>SD_BUS_ERROR_FAILED</refname>
  48     <refname>SD_BUS_ERROR_NO_MEMORY</refname>
  49     <refname>SD_BUS_ERROR_SERVICE_UNKNOWN</refname>
  50     <refname>SD_BUS_ERROR_NAME_HAS_NO_OWNER</refname>
  51     <refname>SD_BUS_ERROR_NO_REPLY</refname>
  52     <refname>SD_BUS_ERROR_IO_ERROR</refname>
  53     <refname>SD_BUS_ERROR_BAD_ADDRESS</refname>
  54     <refname>SD_BUS_ERROR_NOT_SUPPORTED</refname>
  55     <refname>SD_BUS_ERROR_LIMITS_EXCEEDED</refname>
  56     <refname>SD_BUS_ERROR_ACCESS_DENIED</refname>
  57     <refname>SD_BUS_ERROR_AUTH_FAILED</refname>
  58     <refname>SD_BUS_ERROR_NO_SERVER</refname>
  59     <refname>SD_BUS_ERROR_TIMEOUT</refname>
  60     <refname>SD_BUS_ERROR_NO_NETWORK</refname>
  61     <refname>SD_BUS_ERROR_ADDRESS_IN_USE</refname>
  62     <refname>SD_BUS_ERROR_DISCONNECTED</refname>
  63     <refname>SD_BUS_ERROR_INVALID_ARGS</refname>
  64     <refname>SD_BUS_ERROR_FILE_NOT_FOUND</refname>
  65     <refname>SD_BUS_ERROR_FILE_EXISTS</refname>
  66     <refname>SD_BUS_ERROR_UNKNOWN_METHOD</refname>
  67     <refname>SD_BUS_ERROR_UNKNOWN_OBJECT</refname>
  68     <refname>SD_BUS_ERROR_UNKNOWN_INTERFACE</refname>
  69     <refname>SD_BUS_ERROR_UNKNOWN_PROPERTY</refname>
  70     <refname>SD_BUS_ERROR_PROPERTY_READ_ONLY</refname>
  71     <refname>SD_BUS_ERROR_UNIX_PROCESS_ID_UNKNOWN</refname>
  72     <refname>SD_BUS_ERROR_INVALID_SIGNATURE</refname>
  73     <refname>SD_BUS_ERROR_INCONSISTENT_MESSAGE</refname>
  74     <refname>SD_BUS_ERROR_MATCH_RULE_NOT_FOUND</refname>
  75     <refname>SD_BUS_ERROR_MATCH_RULE_INVALID</refname>
  76     <refname>SD_BUS_ERROR_INTERACTIVE_AUTHORIZATION_REQUIRED</refname>
  77
  78     <refpurpose>Standard D-Bus error names</refpurpose>
  79   </refnamediv>
  80
  81   <refsynopsisdiv>
  82     <funcsynopsis>
  83       <funcsynopsisinfo>#include &lt;systemd/sd-bus.h&gt;</funcsynopsisinfo>
  84
  85 <funcsynopsisinfo>#define SD_BUS_ERROR_FAILED                     "org.freedesktop.DBus.Error.Failed"
  86 #define SD_BUS_ERROR_NO_MEMORY                  "org.freedesktop.DBus.Error.NoMemory"
  87 #define SD_BUS_ERROR_SERVICE_UNKNOWN            "org.freedesktop.DBus.Error.ServiceUnknown"
  88 #define SD_BUS_ERROR_NAME_HAS_NO_OWNER          "org.freedesktop.DBus.Error.NameHasNoOwner"
  89 #define SD_BUS_ERROR_NO_REPLY                   "org.freedesktop.DBus.Error.NoReply"
  90 #define SD_BUS_ERROR_IO_ERROR                   "org.freedesktop.DBus.Error.IOError"
  91 #define SD_BUS_ERROR_BAD_ADDRESS                "org.freedesktop.DBus.Error.BadAddress"
  92 #define SD_BUS_ERROR_NOT_SUPPORTED              "org.freedesktop.DBus.Error.NotSupported"
  93 #define SD_BUS_ERROR_LIMITS_EXCEEDED            "org.freedesktop.DBus.Error.LimitsExceeded"
  94 #define SD_BUS_ERROR_ACCESS_DENIED              "org.freedesktop.DBus.Error.AccessDenied"
  95 #define SD_BUS_ERROR_AUTH_FAILED                "org.freedesktop.DBus.Error.AuthFailed"
  96 #define SD_BUS_ERROR_NO_SERVER                  "org.freedesktop.DBus.Error.NoServer"
  97 #define SD_BUS_ERROR_TIMEOUT                    "org.freedesktop.DBus.Error.Timeout"
  98 #define SD_BUS_ERROR_NO_NETWORK                 "org.freedesktop.DBus.Error.NoNetwork"
  99 #define SD_BUS_ERROR_ADDRESS_IN_USE             "org.freedesktop.DBus.Error.AddressInUse"
 100 #define SD_BUS_ERROR_DISCONNECTED               "org.freedesktop.DBus.Error.Disconnected"
 101 #define SD_BUS_ERROR_INVALID_ARGS               "org.freedesktop.DBus.Error.InvalidArgs"
 102 #define SD_BUS_ERROR_FILE_NOT_FOUND             "org.freedesktop.DBus.Error.FileNotFound"
 103 #define SD_BUS_ERROR_FILE_EXISTS                "org.freedesktop.DBus.Error.FileExists"
 104 #define SD_BUS_ERROR_UNKNOWN_METHOD             "org.freedesktop.DBus.Error.UnknownMethod"
 105 #define SD_BUS_ERROR_UNKNOWN_OBJECT             "org.freedesktop.DBus.Error.UnknownObject"
 106 #define SD_BUS_ERROR_UNKNOWN_INTERFACE          "org.freedesktop.DBus.Error.UnknownInterface"
 107 #define SD_BUS_ERROR_UNKNOWN_PROPERTY           "org.freedesktop.DBus.Error.UnknownProperty"
 108 #define SD_BUS_ERROR_PROPERTY_READ_ONLY         "org.freedesktop.DBus.Error.PropertyReadOnly"
 109 #define SD_BUS_ERROR_UNIX_PROCESS_ID_UNKNOWN    "org.freedesktop.DBus.Error.UnixProcessIdUnknown"
 110 #define SD_BUS_ERROR_INVALID_SIGNATURE          "org.freedesktop.DBus.Error.InvalidSignature"
 111 #define SD_BUS_ERROR_INCONSISTENT_MESSAGE       "org.freedesktop.DBus.Error.InconsistentMessage"
 112 #define SD_BUS_ERROR_MATCH_RULE_NOT_FOUND       "org.freedesktop.DBus.Error.MatchRuleNotFound"
 113 #define SD_BUS_ERROR_MATCH_RULE_INVALID         "org.freedesktop.DBus.Error.MatchRuleInvalid"
 114 #define SD_BUS_ERROR_INTERACTIVE_AUTHORIZATION_REQUIRED \
 115                                                 "org.freedesktop.DBus.Error.InteractiveAuthorizationRequired"</funcsynopsisinfo>
 116
 117     </funcsynopsis>
 118   </refsynopsisdiv>
 119
 120   <refsect1>
 121     <title>Description</title>
 122
 123     <para>In addition to the error names user programs define, D-Bus
 124     knows a number of generic, standardized error names, that are
 125     listed below.</para>
 126
 127     <para>In addition to this list, in sd-bus the special error
 128     namespace <literal>System.Error.</literal> is used to map
 129     arbitrary Linux system errors (as defined by <citerefentry
 130     project='man-pages'><refentrytitle>errno</refentrytitle><manvolnum>3</manvolnum></citerefentry>)
 131     to D-Bus errors and back. For example, the error
 132     <constant>EUCLEAN</constant> is mapped to
 133     <literal>System.Error.EUCLEAN</literal> and back.</para>
 134
 135     <variablelist>
 136
 137       <varlistentry>
 138          <term><varname>SD_BUS_ERROR_FAILED</varname></term>
 139          <listitem><para>A generic error indication. See the error
 140          message for further details. This error name should be
 141          avoided, in favor of a more expressive error
 142          name.</para></listitem>
 143       </varlistentry>
 144
 145       <varlistentry>
 146         <term><varname>SD_BUS_ERROR_NO_MEMORY</varname></term>
 147         <listitem><para>A memory allocation failed, and the requested
 148         operation could not be completed.</para></listitem>
 149       </varlistentry>
 150
 151       <varlistentry>
 152         <term><varname>SD_BUS_ERROR_SERVICE_UNKNOWN</varname></term>
 153         <listitem><para>The contacted bus service is unknown and
 154         cannot be activated.</para></listitem>
 155       </varlistentry>
 156
 157       <varlistentry>
 158         <term><varname>SD_BUS_ERROR_NAME_HAS_NO_OWNER</varname></term>
 159         <listitem><para>The specified bus service name currently has
 160         no owner.</para></listitem>
 161       </varlistentry>
 162       <varlistentry>
 163         <term><varname>SD_BUS_ERROR_NO_REPLY</varname></term>
 164         <listitem><para>A message did not receive a reply. This error
 165         is usually generated after a timeout.</para></listitem>
 166       </varlistentry>
 167       <varlistentry>
 168         <term><varname>SD_BUS_ERROR_IO_ERROR</varname></term>
 169         <listitem><para>Generic input/output error, for example when
 170         accessing a socket or other IO context.</para></listitem>
 171       </varlistentry>
 172       <varlistentry>
 173         <term><varname>SD_BUS_ERROR_BAD_ADDRESS</varname></term>
 174         <listitem><para>The specified D-Bus bus address string is
 175         malformed.</para></listitem>
 176       </varlistentry>
 177       <varlistentry>
 178         <term><varname>SD_BUS_ERROR_NOT_SUPPORTED</varname></term>
 179         <listitem><para>The requested operation is not supported on
 180         the local system.</para></listitem>
 181       </varlistentry>
 182       <varlistentry>
 183         <term><varname>SD_BUS_ERROR_LIMITS_EXCEEDED</varname></term>
 184         <listitem><para>Some limited resource has been
 185         exhausted.</para></listitem>
 186       </varlistentry>
 187       <varlistentry>
 188         <term><varname>SD_BUS_ERROR_ACCESS_DENIED</varname></term>
 189         <listitem><para>Access to a resource has been denied, due to security restrictions.</para></listitem>
 190       </varlistentry>
 191       <varlistentry>
 192         <term><varname>SD_BUS_ERROR_AUTH_FAILED</varname></term>
 193         <listitem><para>Authentication did not complete successfully.</para></listitem>
 194       </varlistentry>
 195       <varlistentry>
 196         <term><varname>SD_BUS_ERROR_NO_SERVER</varname></term>
 197         <listitem><para>Unable to connect to the specified server.</para></listitem>
 198       </varlistentry>
 199       <varlistentry>
 200         <term><varname>SD_BUS_ERROR_TIMEOUT</varname></term>
 201         <listitem><para>An operation timed out. Note that method calls
 202         which timeout generate a
 203         <varname>SD_BUS_ERROR_NO_REPLY</varname>.</para></listitem>
 204       </varlistentry>
 205       <varlistentry>
 206         <term><varname>SD_BUS_ERROR_NO_NETWORK</varname></term>
 207         <listitem><para>No network available to execute requested network operation on.</para></listitem>
 208       </varlistentry>
 209       <varlistentry>
 210         <term><varname>SD_BUS_ERROR_ADDRESS_IN_USE</varname></term>
 211         <listitem><para>The specified network address is already being listened on.</para></listitem>
 212       </varlistentry>
 213       <varlistentry>
 214         <term><varname>SD_BUS_ERROR_DISCONNECTED</varname></term>
 215         <listitem><para>The connection has been terminated.</para></listitem>
 216       </varlistentry>
 217       <varlistentry>
 218         <term><varname>SD_BUS_ERROR_INVALID_ARGS</varname></term>
 219         <listitem><para>One or more invalid arguments have been passed.</para></listitem>
 220       </varlistentry>
 221       <varlistentry>
 222         <term><varname>SD_BUS_ERROR_FILE_NOT_FOUND</varname></term>
 223         <listitem><para>The requested file could not be found.</para></listitem>
 224       </varlistentry>
 225       <varlistentry>
 226         <term><varname>SD_BUS_ERROR_FILE_EXISTS</varname></term>
 227         <listitem><para>The requested file exists already.</para></listitem>
 228       </varlistentry>
 229       <varlistentry>
 230         <term><varname>SD_BUS_ERROR_UNKNOWN_METHOD</varname></term>
 231         <listitem><para>The requested method does not exist in the selected interface.</para></listitem>
 232       </varlistentry>
 233       <varlistentry>
 234         <term><varname>SD_BUS_ERROR_UNKNOWN_OBJECT</varname></term>
 235         <listitem><para>The requested object does not exist in the selected service.</para></listitem>
 236       </varlistentry>
 237       <varlistentry>
 238         <term><varname>SD_BUS_ERROR_UNKNOWN_INTERFACE</varname></term>
 239         <listitem><para>The requested interface does not exist on the selected object.</para></listitem>
 240       </varlistentry>
 241       <varlistentry>
 242         <term><varname>SD_BUS_ERROR_UNKNOWN_PROPERTY</varname></term>
 243         <listitem><para>The requested property does not exist in the selected interface.</para></listitem>
 244       </varlistentry>
 245       <varlistentry>
 246         <term><varname>SD_BUS_ERROR_PROPERTY_READ_ONLY</varname></term>
 247         <listitem><para>A write operation was requested on a read-only property.</para></listitem>
 248       </varlistentry>
 249       <varlistentry>
 250         <term><varname>SD_BUS_ERROR_UNIX_PROCESS_ID_UNKNOWN</varname></term>
 251         <listitem><para>The requested PID is not known.</para></listitem>
 252       </varlistentry>
 253       <varlistentry>
 254         <term><varname>SD_BUS_ERROR_INVALID_SIGNATURE</varname></term>
 255         <listitem><para>The specified message signature is not
 256         valid.</para>
 257         </listitem>
 258       </varlistentry>
 259       <varlistentry>
 260         <term><varname>SD_BUS_ERROR_INCONSISTENT_MESSAGE</varname></term>
 261         <listitem><para>The passed message does not validate
 262         correctly.</para></listitem>
 263       </varlistentry>
 264       <varlistentry>
 265         <term><varname>SD_BUS_ERROR_MATCH_RULE_NOT_FOUND</varname></term>
 266         <listitem><para>The specified match rule does not exist.</para></listitem>
 267       </varlistentry>
 268       <varlistentry>
 269         <term><varname>SD_BUS_ERROR_MATCH_RULE_INVALID</varname></term>
 270         <listitem><para>The specified match rule is invalid.</para></listitem>
 271       </varlistentry>
 272       <varlistentry>
 273         <term><varname>SD_BUS_ERROR_INTERACTIVE_AUTHORIZATION_REQUIRED</varname></term>
 274         <listitem><para>Access to the requested operation is not
 275         permitted, however, it might be available after interactive
 276         authentication. This is usually returned by method calls
 277         supporting a framework for additional interactive
 278         authorization, when interactive authorization was not enabled
 279         with the
 280         <citerefentry><refentrytitle>sd_bus_message_set_allow_interactive_authorization</refentrytitle><manvolnum>3</manvolnum></citerefentry>
 281         for the method call message.</para></listitem>
 282       </varlistentry>
 283     </variablelist>
 284   </refsect1>
 285
 286   <refsect1>
 287     <title>Notes</title>
 288
 289     <para>The various error definitions described here are available
 290     as a shared library, which can be compiled and linked to with the
 291     <constant>libsystemd</constant> <citerefentry
 292     project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
 293     file.</para>
 294   </refsect1>
 295
 296   <refsect1>
 297     <title>See Also</title>
 298
 299     <para>
 300       <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
 301       <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
 302       <citerefentry><refentrytitle>sd_bus_error</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
 303       <citerefentry><refentrytitle>sd_bus_message_set_allow_interactive_authorization</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
 304       <citerefentry project='man-pages'><refentrytitle>errno</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
 305       <citerefentry project='die-net'><refentrytitle>strerror</refentrytitle><manvolnum>3</manvolnum></citerefentry>
 306     </para>
 307   </refsect1>
 308
 309 </refentry>