tree 0c3c8459903b0151d40a6ea4b9bfc32198fce91e
parent 397fd035e3adda2f3d36bfc5f2268372847778e7
author Jonathan Doman <jonathan.doman@intel.com> 1680283248 -0700
committer Jonathan Doman <jonathan.doman@intel.com> 1680631711 -0700

Support systemd socket activation

Check if systemd passed us a socket when starting obmc-console before
creating the socket ourselves. This will support use cases where we
don't need obmc-console until a SoL is activated by the user.

Tested: Verified that existing unit file installation is unchanged -
statically enabled obmc-console@.service instances will be started.

Then disabled obmc-console@ttyS2.service and enabled
obmc-console@ttyS2.socket (with a drop-in change to override
ListenStream to "obmc-console") and verifed that activating Redfish and
SSH SoL would start obmc-console@ttyS2.service and console redirection
worked.

Change-Id: I42e96af46a5893145abf27761e97fd4f1b73719d
Signed-off-by: Jonathan Doman <jonathan.doman@intel.com>