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Commit 48aa86bd authored by Jeff Davidson's avatar Jeff Davidson
Browse files

Expose APIs to analyze UIDs in UserHandle/Process. 

Clients of the NetworkStatsManager public APIs may get UIDs belonging
to other users, and UIDs which don't actually represent applications.
These APIs allow clients to understand whether a given ID belongs to
the same user as themselves, and whether an ID represents an
application or something else (e.g. a system UID).

Change-Id: Ia56d5891521ce98e5594c41da8f9d756819deb66
parent f61a8478

api/current.txt

+2 −0
Original line number Diff line number Diff line
@@ -29061,6 +29061,7 @@ package android.os { 
    method public static final int getThreadPriority(int) throws java.lang.IllegalArgumentException;

    method public static final int getUidForName(java.lang.String);

    method public static final boolean is64Bit();

    method public static boolean isApplicationUid(int);

    method public static final void killProcess(int);

    method public static final int myPid();

    method public static final int myTid();
@@ -29241,6 +29242,7 @@ package android.os { 
  public final class UserHandle implements android.os.Parcelable {

    ctor public UserHandle(android.os.Parcel);

    method public int describeContents();

    method public static android.os.UserHandle getUserHandleForUid(int);

    method public static android.os.UserHandle readFromParcel(android.os.Parcel);

    method public void writeToParcel(android.os.Parcel, int);

    method public static void writeToParcel(android.os.UserHandle, android.os.Parcel);

api/system-current.txt

+2 −0
Original line number Diff line number Diff line
@@ -31354,6 +31354,7 @@ package android.os { 
    method public static final int getThreadPriority(int) throws java.lang.IllegalArgumentException;

    method public static final int getUidForName(java.lang.String);

    method public static final boolean is64Bit();

    method public static boolean isApplicationUid(int);

    method public static final void killProcess(int);

    method public static final int myPid();

    method public static final int myTid();
@@ -31580,6 +31581,7 @@ package android.os { 
    ctor public UserHandle(android.os.Parcel);

    method public int describeContents();

    method public int getIdentifier();

    method public static android.os.UserHandle getUserHandleForUid(int);

    method public deprecated boolean isOwner();

    method public boolean isSystem();

    method public static int myUserId();

api/test-current.txt

+2 −0
Original line number Diff line number Diff line
@@ -29070,6 +29070,7 @@ package android.os { 
    method public static final int getThreadPriority(int) throws java.lang.IllegalArgumentException;

    method public static final int getUidForName(java.lang.String);

    method public static final boolean is64Bit();

    method public static boolean isApplicationUid(int);

    method public static final void killProcess(int);

    method public static final int myPid();

    method public static final int myTid();
@@ -29251,6 +29252,7 @@ package android.os { 
    ctor public UserHandle(android.os.Parcel);

    method public int describeContents();

    method public static int getAppId(int);

    method public static android.os.UserHandle getUserHandleForUid(int);

    method public static android.os.UserHandle readFromParcel(android.os.Parcel);

    method public void writeToParcel(android.os.Parcel, int);

    method public static void writeToParcel(android.os.UserHandle, android.os.Parcel);

core/java/android/os/Process.java

+10 −0
Original line number Diff line number Diff line
@@ -822,6 +822,16 @@ public class Process { 
        return UserHandle.of(UserHandle.getUserId(myUid()));

    }



    /**

     * Returns whether the given uid belongs to an application.

     * @param uid A kernel uid.

     * @return Whether the uid corresponds to an application sandbox running in

     *     a specific user.

     */

    public static boolean isApplicationUid(int uid) {

        return UserHandle.isApp(uid);

    }



    /**

     * Returns whether the current process is in an isolated sandbox.

     * @hide

core/java/android/os/UserHandle.java

+9 −0
Original line number Diff line number Diff line
@@ -129,6 +129,15 @@ public final class UserHandle implements Parcelable { 
        }

    }



    /**

     * Returns the user for a given uid.

     * @param uid A uid for an application running in a particular user.

     * @return A {@link UserHandle} for that user.

     */

    public static UserHandle getUserHandleForUid(int uid) {

        return of(getUserId(uid));

    }



    /**

     * Returns the user id for a given uid.

     * @hide