diff options
Diffstat (limited to 'man/systemd.socket.xml')
| -rw-r--r-- | man/systemd.socket.xml | 81 |
1 files changed, 48 insertions, 33 deletions
diff --git a/man/systemd.socket.xml b/man/systemd.socket.xml index 73c8c5b..a944efa 100644 --- a/man/systemd.socket.xml +++ b/man/systemd.socket.xml @@ -1,6 +1,6 @@ <?xml version='1.0'?> <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" - "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> + "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd"> <!-- SPDX-License-Identifier: LGPL-2.1-or-later --> <refentry id="systemd.socket" xmlns:xi="http://www.w3.org/2001/XInclude"> @@ -167,9 +167,9 @@ information about the socket or FIFO it supervises. A number of options that may be used in this section are shared with other unit types. These options are documented in - <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry> - and - <citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>. + <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry> and + <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>. The options specific to the [Socket] section of socket units are the following:</para> @@ -221,7 +221,9 @@ <replaceable>x</replaceable> on a port <replaceable>y</replaceable> address in the <constant>AF_VSOCK</constant> family. The CID is a unique 32-bit integer identifier in <constant>AF_VSOCK</constant> analogous to an IP address. Specifying the CID is optional, and may be - set to the empty string.</para> + set to the empty string. <literal>vsock</literal> may be replaced with + <literal>vsock-stream</literal>, <literal>vsock-dgram</literal> or <literal>vsock-seqpacket</literal> + to force usage of the corresponding socket type.</para> <para>Note that <constant>SOCK_SEQPACKET</constant> (i.e. <varname>ListenSequentialPacket=</varname>) is only available @@ -458,21 +460,18 @@ <varlistentry> <term><varname>MaxConnections=</varname></term> - <listitem><para>The maximum number of connections to - simultaneously run services instances for, when - <option>Accept=yes</option> is set. If more concurrent - connections are coming in, they will be refused until at least - one existing connection is terminated. This setting has no - effect on sockets configured with - <option>Accept=no</option> or datagram sockets. Defaults to - 64.</para></listitem> + <listitem><para>The maximum number of connections to simultaneously run services instances for, when + <option>Accept=yes</option> is set. If more concurrent connections are coming in, they will be refused + until at least one existing connection is terminated. This setting has no effect on sockets configured + with <option>Accept=no</option> or datagram sockets. Defaults to 64.</para></listitem> </varlistentry> <varlistentry> <term><varname>MaxConnectionsPerSource=</varname></term> - <listitem><para>The maximum number of connections for a service per source IP address. - This is very similar to the <varname>MaxConnections=</varname> directive - above. Disabled by default.</para> + <listitem><para>The maximum number of connections for a service per source IP address (in case of + IPv4/IPv6), per source CID (in case of <constant>AF_VSOCK</constant>), or source UID (in case of + <constant>AF_UNIX</constant>). This is very similar to the <varname>MaxConnections=</varname> + directive above. Defaults to 0, i.e. disabled.</para> <xi:include href="version-info.xml" xpointer="v232"/> </listitem> @@ -919,6 +918,20 @@ <xi:include href="version-info.xml" xpointer="v255"/></listitem> </varlistentry> + <varlistentry> + <term><varname>PassFileDescriptorsToExec=</varname></term> + + <listitem><para>Takes a boolean argument. Defaults to off. If enabled, file descriptors created by + the socket unit are passed to <varname>ExecStartPost=</varname>, <varname>ExecStopPre=</varname>, and + <varname>ExecStopPost=</varname> commands from the socket unit. The passed file descriptors can be + accessed with + <citerefentry><refentrytitle>sd_listen_fds</refentrytitle><manvolnum>3</manvolnum></citerefentry> as + if the commands were invoked from the associated service units. Note that + <varname>ExecStartPre=</varname> command cannot access socket file descriptors.</para> + + <xi:include href="version-info.xml" xpointer="v256"/></listitem> + </varlistentry> + </variablelist> <xi:include href="systemd.service.xml" xpointer="shared-unit-options" /> @@ -926,25 +939,27 @@ <refsect1> <title>See Also</title> - <para> - <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, - <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, - <citerefentry><refentrytitle>systemd-system.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>, - <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>, - <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>, - <citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>, - <citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry>, - <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>, - <citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry>, - <citerefentry><refentrytitle>sd_listen_fds</refentrytitle><manvolnum>3</manvolnum></citerefentry>, - <citerefentry><refentrytitle>sd_listen_fds_with_names</refentrytitle><manvolnum>3</manvolnum></citerefentry> - </para> + <para><simplelist type="inline"> + <member><citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry></member> + <member><citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry></member> + <member><citerefentry><refentrytitle>systemd-system.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry></member> + <member><citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry></member> + <member><citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry></member> + <member><citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry></member> + <member><citerefentry><refentrytitle>systemd.resource-control</refentrytitle><manvolnum>5</manvolnum></citerefentry></member> + <member><citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry></member> + <member><citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry></member> + <member><citerefentry><refentrytitle>sd_listen_fds</refentrytitle><manvolnum>3</manvolnum></citerefentry></member> + <member><citerefentry><refentrytitle>sd_listen_fds_with_names</refentrytitle><manvolnum>3</manvolnum></citerefentry></member> + </simplelist></para> <para> For more extensive descriptions see the "systemd for Developers" series: - <ulink url="https://0pointer.de/blog/projects/socket-activation.html">Socket Activation</ulink>, - <ulink url="https://0pointer.de/blog/projects/socket-activation2.html">Socket Activation, part II</ulink>, - <ulink url="https://0pointer.de/blog/projects/inetd.html">Converting inetd Services</ulink>, - <ulink url="https://0pointer.de/blog/projects/socket-activated-containers.html">Socket Activated Internet Services and OS Containers</ulink>. + <simplelist type="inline"> + <member><ulink url="https://0pointer.de/blog/projects/socket-activation.html">Socket Activation</ulink></member> + <member><ulink url="https://0pointer.de/blog/projects/socket-activation2.html">Socket Activation, part II</ulink></member> + <member><ulink url="https://0pointer.de/blog/projects/inetd.html">Converting inetd Services</ulink></member> + <member><ulink url="https://0pointer.de/blog/projects/socket-activated-containers.html">Socket Activated Internet Services and OS Containers</ulink></member> + </simplelist>. </para> </refsect1> |