Working Notes: a commonplace notebook for recording & exploring ideas.
Home. Site Map. Subscribe. More at expLog.

Android Doze

• How is network access restricted in device idle?

  • Android P

• Uses =Apf=: controller

  • Android M

• Introduced by -- who else? -- Dianne Hackborn in https://android.googlesource.com/platform/frameworks/base/+/8ad2af7^!/#F9

• No Apf.

• DeviceIdleController toggles states.

• Detected by https://android.googlesource.com/platform/frameworks/base/+/8ad2af7/services/core/java/com/android/server/net/NetworkPolicyManagerService.java

• Set by http://androidxref.com/6.0.0_r1/xref/frameworks/base/services/core/java/com/android/server/NetworkManagementService.java

• 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