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Allocate well-known tag for app store updates.

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This way an app store can shift blame for update-related network
traffic onto the app that is being updated.

Using a well-known tag makes it easy for developers to identify
that they didn't explicitly request the traffic at runtime, similar
to how backup/restore traffic is handled.

Bug: 38282350
Test: builds, boots
Change-Id: I003dd7c9615d4ab318250f1e44fa5d195ac94d23
This commit is contained in:
Jeff Sharkey
2017-06-26 19:50:41 -06:00
parent 6d7f581187
commit 8af5ad1575
1 changed files with 29 additions and 15 deletions
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44
core/java/android/net/TrafficStats.java
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@@ -109,25 +109,26 @@ public class TrafficStats {
*/
public static final int TAG_SYSTEM_RESTORE = 0xFFFFFF04;
/** @hide */
public static final int TAG_SYSTEM_DHCP = 0xFFFFFF05;
/** @hide */
public static final int TAG_SYSTEM_NTP = 0xFFFFFF06;
/** @hide */
public static final int TAG_SYSTEM_PROBE = 0xFFFFFF07;
/** @hide */
public static final int TAG_SYSTEM_NEIGHBOR = 0xFFFFFF08;
/** @hide */
public static final int TAG_SYSTEM_GPS = 0xFFFFFF09;
/** @hide */
public static final int TAG_SYSTEM_PAC = 0xFFFFFF0A;
/**
* Sockets that are strictly local on device; never hits network.
* Default tag value for code or resources downloaded by an app store on
* behalf of the app, such as app updates.
*
* @hide
*/
public static final int TAG_SYSTEM_LOCAL = 0xFFFFFFAA;
public static final int TAG_SYSTEM_CODE = 0xFFFFFF05;
/** @hide */
public static final int TAG_SYSTEM_DHCP = 0xFFFFFF40;
/** @hide */
public static final int TAG_SYSTEM_NTP = 0xFFFFFF41;
/** @hide */
public static final int TAG_SYSTEM_PROBE = 0xFFFFFF42;
/** @hide */
public static final int TAG_SYSTEM_NEIGHBOR = 0xFFFFFF43;
/** @hide */
public static final int TAG_SYSTEM_GPS = 0xFFFFFF44;
/** @hide */
public static final int TAG_SYSTEM_PAC = 0xFFFFFF45;
private static INetworkStatsService sStatsService;
@@ -209,6 +210,19 @@ public class TrafficStats {
setThreadStatsTag(TAG_SYSTEM_RESTORE);
}
/**
* Set active tag to use when accounting {@link Socket} traffic originating
* from the current thread. The tag used internally is well-defined to
* distinguish all code-related traffic, such as updates performed by an app
* store.
*
* @hide
*/
@SystemApi
public static void setThreadStatsTagCode() {
setThreadStatsTag(TAG_SYSTEM_CODE);
}
/**
* Get the active tag used when accounting {@link Socket} traffic originating
* from the current thread. Only one active tag per thread is supported.