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

[Paul Wouters]

New commits:
commit 0c04c85a3fc6becfa65d6a70974b072489a100a6
Author: Paul Wouters <paul.wouters at aiven.io>
Date:   Wed Aug 18 17:29:34 2021 -0400

    IKEv2: discard, not expire, replaced child SA by Initial Contact
    
    When we received initial contact message, we know there is no
    point in sending an Informational Exvhange message. Sending it
    causes us to retransmit/delay because the other end can no longer
    respond. That causes a delay in Child SA deletion. Since both
    Child SA's use the same reqid/policy but different state/key,
    packet flow is interrupted while this is in progress.
    
    By using EVENT_SA_DISCARD, this happens within 1s, instead of
    taking 60s
    
    Co-authored-by: Andrew Cagney <cagney at gnu.org>