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Diffstat (limited to 'man/systemd.exec.xml')
| -rw-r--r-- | man/systemd.exec.xml | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/man/systemd.exec.xml b/man/systemd.exec.xml index 86ad7e223d..01356e4c45 100644 --- a/man/systemd.exec.xml +++ b/man/systemd.exec.xml @@ -1050,6 +1050,14 @@ <function>write</function> will be removed from the set). </para></listitem> + + <para>Note that setting + <varname>SystemCallFilter=</varname> + implies a + <varname>SystemCallArchitectures=</varname> + setting of <literal>native</literal> + (see below), unless that option is + configured otherwise.</para> </varlistentry> <varlistentry> @@ -1072,6 +1080,48 @@ is triggered.</para></listitem> </varlistentry> + <varlistentry> + <term><varname>SystemCallArchitectures=</varname></term> + + <listitem><para>Takes a space + separated list of architecture + identifiers to include in the system + call filter. The known architecture + identifiers are + <literal>x86</literal>, + <literal>x86-64</literal>, + <literal>x32</literal>, + <literal>arm</literal> as well as the + special identifier + <literal>native</literal>. Only system + calls of the specified architectures + will be permitted to processes of this + unit. This is an effective way to + disable compatibility with non-native + architectures for processes, for + example to prohibit execution of 32bit + x86 binaries on 64bit x86-64 + systems. The special + <literal>native</literal> identifier + implicitly maps to the native + architecture of the system (or more + strictly: to the architecture the + system manager is compiled for). Note + that setting this option to a + non-empty list implies that + <literal>native</literal> is included + too. By default this option is set to + the empty list, i.e. no architecture + system call filtering is applied. Note + that configuring a system call filter + with + <varname>SystemCallFilter=</varname> + (above) implies a + <literal>native</literal> architecture + list, unless configured + otherwise.</para></listitem> + </varlistentry> + </variablelist> </refsect1> |