Merge pull request #13169 from ssahani/bridge-igmp-group-version

[thirdparty/systemd.git] / man / systemd.journal-fields.xml

diff --git a/man/systemd.journal-fields.xml b/man/systemd.journal-fields.xml
index 942c6ba91a3582ae62d07415138d6d32425ddd69..fa374bf0f804d1cdc487a8fed111cd00e5c9e274 100644 (file)
--- a/man/systemd.journal-fields.xml
+++ b/man/systemd.journal-fields.xml
@@ -1,10 +1,7 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
-<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
-
-<!--
-  SPDX-License-Identifier: LGPL-2.1+
--->
+<!-- SPDX-License-Identifier: LGPL-2.1+ -->
 
 <refentry id="systemd.journal-fields">
 
@@ -56,14 +53,10 @@
       <varlistentry>
         <term><varname>MESSAGE_ID=</varname></term>
         <listitem>
-          <para>A 128-bit message identifier ID for recognizing
-          certain message types, if this is desirable. This should
-          contain a 128-bit ID formatted as a lower-case hexadecimal
-          string, without any separating dashes or suchlike. This is
-          recommended to be a UUID-compatible ID, but this is not
-          enforced, and formatted differently. Developers can generate
-          a new ID for this purpose with <command>journalctl
-          <option>--new-id128</option></command>.
+          <para>A 128-bit message identifier ID for recognizing certain message types, if this is desirable. This
+          should contain a 128-bit ID formatted as a lower-case hexadecimal string, without any separating dashes or
+          suchlike. This is recommended to be a UUID-compatible ID, but this is not enforced, and formatted
+          differently. Developers can generate a new ID for this purpose with <command>systemd-id128 new</command>.
           </para>
         </listitem>
       </varlistentry>
@@ -111,6 +104,11 @@
           usually derived from glibc's
           <varname>program_invocation_short_name</varname> variable, see
           <citerefentry project='die-net'><refentrytitle>program_invocation_short_name</refentrytitle><manvolnum>3</manvolnum></citerefentry>.)</para>
+          <para>Note that the journal service does not validate the values of any structured
+          journal fields whose name is not prefixed with an underscore, and this includes any
+          syslog related fields such as these. Hence, applications that supply a facility, PID,
+          or log level are expected to do so properly formatted, i.e. as numeric integers formatted
+          as decimal strings.</para>
         </listitem>
       </varlistentry>