[Swan-commit] Changes to ref refs/heads/master

[Tuomo Soini]

Rebased ref, commits from common ancestor:
commit 0a8b5d6e5a61bdccb961f5ab62466ace91adcaf9
Author: Andrew Cagney <cagney at gnu.org>
Date:   Mon Feb 3 12:46:51 2020 -0500

    demux: reference count msg_digest
    
    So that the main thread can't release a msg_digest while
    it is being used by a helper thread.
    
    So that IKE and CHILD SAs can share a suspended digest.

commit 2f995dbe28ad2aa31471ce76da97feea33f0c493
Author: Andrew Cagney <cagney at gnu.org>
Date:   Fri Feb 14 10:37:49 2020 -0500

    testing: only ping-once.sh when testing connection is "up"
    
    rather than pinging 4 times