tree f0901d4847a7c30abd2c1971d3f900a989069ead
parent e40eab608af245357705852cdad52b6d615ff518
author Benedict Wong <benedictwong@google.com> 1542246799 -0800
committer Benedict Wong <benedictwong@google.com> 1551915472 -0800

Implement TestNetworkService

This change adds the relevant JNI implementations, as well as the
implementations and NetworkAgent tracking code in the TestNetworkService.

TestNetworkService (And Manager) is designed for use exclusively in
testing code, allowing for the creation of TUN and IPsec backed networks
in test code. Specifically, this allows for testing of components such
as IP, DHCP, or DNS clients, as well as kernel features such as IPsec.

Access to the TestNetworkService will be conditioned upon the
MANAGE_TEST_NETWORKS permission that will be granted only to the Shell.
CTS will use UiAutomation.adoptShellPermissionIdentity() to gain the
ability to use this service.

Bug: 72950854
Test: CTS tests passing
Change-Id: Ie66ba631a548b5f9c6b5ed0797582f86688debe5