swan-updown

see updown plugin.

First, it parses PLUTO_* and cli args.

Then it helps create ipsec interfaces on demand and log to syslog.

usage

To utilize swan-updown, specify connections.<conn>.children.<child>.updown = swan-updown [OPTIONS] in swanctl.conf

For its arguments, see swan-updown -h.

what it will do

interface

It will [create / destroy] XFRM interface when an SA is [established / deleted].

The name of the interface will be {prefix}{hex encoded if_id}. The prefix can be specified by --prefix argument and the if_id is the PLUTO_IF_ID_IN environment variable.

swan-updown also adds altnames to the interface. The altnames will show - the local and remote IKEIDs pair - the local and remote IP addresses pair

Additionally, if --netns is specified, the created interface will be moved into the given netns.