commit 6fd62b3f2df5e63503ebe4318a9e1702dfff6209
author Lorenzo Colitti <lorenzo@google.com> Fri Sep 22 21:27:32 2017 +0900
committer Rubin Xu <rubinxu@google.com> Thu Jun 07 08:07:38 2018 +0100
tree 468e56e78f85cc83f7c261304c3104c4d8b4f463
parent b62aa315d1d9d27c716964930205ed0681e8997b

Support seamless handover between VPN fds.

This used to work before SOCK_DESTROY allowed us to close
connections when VPNs connected and disconnected. Instead of
doing this like the old code did by registering a new
NetworkAgent, support (limited) seamless handover on the
same NetworkAgent and netId.

Bug: 64692591
Test: cts-tradefed run commandAndExit cts-dev -m CtsHostsideNetworkTests -t com.android.cts.net.HostsideVpnTests#testSeamlessHandover
Change-Id: Idad0ec5946e7eb9e1f4a13c92ea7138de6a46f16
Merged-In: Idad0ec5946e7eb9e1f4a13c92ea7138de6a46f16
(cherry picked from commit d9dbfa65c662e9b4f8064191663252925161dbfc)