tree ffe900cfdf0b5d00a75ee9ba41c93703e35ff64a
parent a20843638f7340ce4c5198bdb489b8ef66722f73
author Patrick Rohr <prohr@google.com> 1642773496 +0100
committer Patrick Rohr <prohr@google.com> 1644414386 +0100

Add bandwidth limiting to CS

Adds ingress rate limiting functionality to ConnectivityService. The tc
rate limit is installed before we tell netd about the interface, and
removed after the network is removed from netd. When the setting
changes, the old rate limit needs to be removed before a new one can be
added (unfortunately, we cannot use NLM_F_REPLACE when configuring the
tc-police filter).

Currently, this functionality is always enabled, but may or may not work
based on kernel support.

Bug: 157552970
Test: atest FrameworksNetTests:ConnectivityServiceTest
Change-Id: I4e64b2c40490f061e42b40a1b1b3a6618c3d1a87