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

[Andrew Cagney]

New commits:
commit 7320c991b01fe23d4080157c1f898194f8a55260
Author: Andrew Cagney <cagney at gnu.org>
Date:   Tue Jun 29 20:01:30 2021 -0400

    kernel: use .tunnel and .level==0 to determine the tunnel bit
    
    In tunnel mode, both state and policy only need the "tunnel" bit
    (.mode) set on the "inner-most" state / policy; while for transport
    mode all states need selectors.
    
    Replace struct kernel_sa fields .mode and .add_selectors, and the
    variable encap_oneshot with the struct kernel_sa fields .tunnel and
    .level.  Use struct encap_rules to determine tunnel mode.
    
    Also merge "inner_proto" and "inner_esatype" into struct encap_rules's
    new .inner_proto field; and use encap_rules to specify raw_policy()'s
    encap, sa_proto and esatype parameters (yes, for these code paths
    sa_proto and esatype are redundant).