_plutorun is called by _realsetup to configure and bring up pluto(8). It invokes pluto, and watches to makes sure that pluto is restarted if it fails, as the SYSV initscripts do not provide a restart facility. When other init systems are used, such as systemd or upstart, _plutorun is not used.
Man page written for the Linux FreeS/WAN project <m[blue]https://www.freeswan.org/m> by Michael Richardson. Original program written by Henry Spencer. Updated for the Libreswan project <m[blue]https://libreswan.org/m> by Paul Wouters