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How is network access restricted in device idle?
Uses =Apf=: controller
Introduced by -- who else? -- Dianne Hackborn in https://android.googlesource.com/platform/frameworks/base/+/8ad2af7^!/#F9
No Apf.
DeviceIdleController toggles states.
Which triggers http://androidxref.com/6.0.0_r1/xref/frameworks/base/services/core/java/com/android/server/NativeDaemonConnector.java
through the Netdconnector: http://androidxref.com/6.0.0_r1/xref/system/netd/
using iptables under the hood
— Kunal