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Merge "Stack Trace sampling and reporting."

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This commit is contained in:
Stanislav Zholnin
2020-02-15 04:53:11 +00:00
committed by Android (Google) Code Review
parent 9a5d3ad5e0 90516b9200
commit 4b7fd29ff1
12 changed files with 1075 additions and 27 deletions
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6
api/current.txt
View File

@@ -6426,9 +6426,13 @@ package android.app {
public class StatusBarManager {
}
public final class SyncNotedAppOp {
public final class SyncNotedAppOp implements android.os.Parcelable {
ctor public SyncNotedAppOp(@IntRange(from=0L) int, @Nullable String);
method public int describeContents();
method @Nullable public String getFeatureId();
method @NonNull public String getOp();
method public void writeToParcel(@NonNull android.os.Parcel, int);
field @NonNull public static final android.os.Parcelable.Creator<android.app.SyncNotedAppOp> CREATOR;
}
@Deprecated public class TabActivity extends android.app.ActivityGroup {

14
api/system-current.txt
View File

@@ -365,6 +365,7 @@ package android.app {
}
public class AppOpsManager {
method @Nullable @RequiresPermission(android.Manifest.permission.GET_APP_OPS_STATS) public android.app.RuntimeAppOpAccessMessage collectRuntimeAppOpAccessMessage();
method @RequiresPermission(android.Manifest.permission.GET_APP_OPS_STATS) public void getHistoricalOps(@NonNull android.app.AppOpsManager.HistoricalOpsRequest, @NonNull java.util.concurrent.Executor, @NonNull java.util.function.Consumer<android.app.AppOpsManager.HistoricalOps>);
method public static String[] getOpStrs();
method @NonNull @RequiresPermission(android.Manifest.permission.GET_APP_OPS_STATS) public java.util.List<android.app.AppOpsManager.PackageOps> getOpsForPackage(int, @NonNull String, @Nullable java.lang.String...);
@@ -681,6 +682,19 @@ package android.app {
method public void setNotificationAssistantAccessGranted(@Nullable android.content.ComponentName, boolean);
}
public final class RuntimeAppOpAccessMessage implements android.os.Parcelable {
ctor public RuntimeAppOpAccessMessage(@IntRange(from=0L) int, @IntRange(from=0L) int, @NonNull String, @Nullable String, @NonNull String, int);
method public int describeContents();
method @Nullable public String getFeatureId();
method @NonNull public String getMessage();
method @NonNull public String getOp();
method @NonNull public String getPackageName();
method public int getSamplingStrategy();
method @IntRange(from=0L) public int getUid();
method public void writeToParcel(@NonNull android.os.Parcel, int);
field @NonNull public static final android.os.Parcelable.Creator<android.app.RuntimeAppOpAccessMessage> CREATOR;
}
public class SearchManager implements android.content.DialogInterface.OnCancelListener android.content.DialogInterface.OnDismissListener {
method public void launchAssist(@Nullable android.os.Bundle);
}

14
api/test-current.txt
View File

@@ -164,6 +164,7 @@ package android.app {
public class AppOpsManager {
method @RequiresPermission("android.permission.MANAGE_APPOPS") public void addHistoricalOps(@NonNull android.app.AppOpsManager.HistoricalOps);
method @RequiresPermission("android.permission.MANAGE_APPOPS") public void clearHistory();
method @Nullable @RequiresPermission("android.permission.GET_APP_OPS_STATS") public android.app.RuntimeAppOpAccessMessage collectRuntimeAppOpAccessMessage();
method @RequiresPermission("android.permission.GET_APP_OPS_STATS") public void getHistoricalOps(@NonNull android.app.AppOpsManager.HistoricalOpsRequest, @NonNull java.util.concurrent.Executor, @NonNull java.util.function.Consumer<android.app.AppOpsManager.HistoricalOps>);
method @RequiresPermission("android.permission.MANAGE_APPOPS") public void getHistoricalOpsFromDiskRaw(@NonNull android.app.AppOpsManager.HistoricalOpsRequest, @Nullable java.util.concurrent.Executor, @NonNull java.util.function.Consumer<android.app.AppOpsManager.HistoricalOps>);
method public static int getNumOps();
@@ -447,6 +448,19 @@ package android.app {
method public android.graphics.Rect getSourceRectHint();
}
public final class RuntimeAppOpAccessMessage implements android.os.Parcelable {
ctor public RuntimeAppOpAccessMessage(@IntRange(from=0L) int, @IntRange(from=0L) int, @NonNull String, @Nullable String, @NonNull String, int);
method public int describeContents();
method @Nullable public String getFeatureId();
method @NonNull public String getMessage();
method @NonNull public String getOp();
method @NonNull public String getPackageName();
method public int getSamplingStrategy();
method @IntRange(from=0L) public int getUid();
method public void writeToParcel(@NonNull android.os.Parcel, int);
field @NonNull public static final android.os.Parcelable.Creator<android.app.RuntimeAppOpAccessMessage> CREATOR;
}
public class StatusBarManager {
method public void collapsePanels();
method public void expandNotificationsPanel();

122
core/java/android/app/AppOpsManager.java
View File

@@ -16,6 +16,10 @@
package android.app;
import static android.util.StatsLogInternal.RUNTIME_APP_OP_ACCESS__SAMPLING_STRATEGY__DEFAULT;
import static android.util.StatsLogInternal.RUNTIME_APP_OP_ACCESS__SAMPLING_STRATEGY__RARELY_USED;
import static android.util.StatsLogInternal.RUNTIME_APP_OP_ACCESS__SAMPLING_STRATEGY__UNIFORM;
import android.Manifest;
import android.annotation.CallbackExecutor;
import android.annotation.IntDef;
@@ -48,6 +52,8 @@ import android.os.Parcelable;
import android.os.Process;
import android.os.RemoteCallback;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.SystemClock;
import android.os.UserManager;
import android.util.ArrayMap;
import android.util.ArraySet;
@@ -63,6 +69,7 @@ import com.android.internal.app.IAppOpsAsyncNotedCallback;
import com.android.internal.app.IAppOpsCallback;
import com.android.internal.app.IAppOpsNotedCallback;
import com.android.internal.app.IAppOpsService;
import com.android.internal.app.MessageSamplingConfig;
import com.android.internal.os.RuntimeInit;
import com.android.internal.os.ZygoteInit;
import com.android.internal.util.ArrayUtils;
@@ -141,6 +148,13 @@ public class AppOpsManager {
@UnsupportedAppUsage
final IAppOpsService mService;
/**
* Service for the application context, to be used by static methods via
* {@link #getService()}
*/
@GuardedBy("sLock")
static IAppOpsService sService;
@GuardedBy("mModeWatchers")
private final ArrayMap<OnOpChangedListener, IAppOpsCallback> mModeWatchers =
new ArrayMap<>();
@@ -159,6 +173,50 @@ public class AppOpsManager {
@GuardedBy("sLock")
private static @Nullable AppOpsCollector sNotedAppOpsCollector;
/**
* Additional collector that collect accesses and forwards a few of them them via
* {@link IAppOpsService#reportRuntimeAppOpAccessMessageAndGetConfig}.
*/
private static AppOpsCollector sMessageCollector =
new AppOpsCollector() {
@Override
public void onNoted(@NonNull SyncNotedAppOp op) {
reportStackTraceIfNeeded(op);
}
@Override
public void onAsyncNoted(@NonNull AsyncNotedAppOp asyncOp) {
// collected directly in AppOpsService
}
@Override
public void onSelfNoted(@NonNull SyncNotedAppOp op) {
reportStackTraceIfNeeded(op);
}
private void reportStackTraceIfNeeded(@NonNull SyncNotedAppOp op) {
if (sConfig.getSampledOpCode() == OP_NONE
&& sConfig.getExpirationTimeSinceBootMillis()
>= SystemClock.elapsedRealtime()) {
return;
}
MessageSamplingConfig config = sConfig;
if (leftCircularDistance(strOpToOp(op.getOp()), config.getSampledOpCode(),
_NUM_OP) <= config.getAcceptableLeftDistance()
|| config.getExpirationTimeSinceBootMillis()
< SystemClock.elapsedRealtime()) {
String stackTrace = getFormattedStackTrace();
try {
sConfig = getService().reportRuntimeAppOpAccessMessageAndGetConfig(
ActivityThread.currentOpPackageName(), op, stackTrace);
} catch (RemoteException e) {
e.rethrowFromSystemServer();
}
}
}
};
static IBinder sClientId;
/**
@@ -550,7 +608,6 @@ public class AppOpsManager {
})
public @interface OpFlags {}
/** @hide */
public static final String getFlagName(@OpFlags int flag) {
switch (flag) {
@@ -569,6 +626,18 @@ public class AppOpsManager {
}
}
/**
* Strategies used for message sampling
* @hide
*/
@Retention(RetentionPolicy.SOURCE)
@IntDef(prefix = {"RUNTIME_APP_OPS_ACCESS__SAMPLING_STRATEGY__"}, value = {
RUNTIME_APP_OP_ACCESS__SAMPLING_STRATEGY__DEFAULT,
RUNTIME_APP_OP_ACCESS__SAMPLING_STRATEGY__UNIFORM,
RUNTIME_APP_OP_ACCESS__SAMPLING_STRATEGY__RARELY_USED
})
public @interface SamplingStrategy {}
private static final int UID_STATE_OFFSET = 31;
private static final int FLAGS_MASK = 0xFFFFFFFF;
@@ -2225,6 +2294,10 @@ public class AppOpsManager {
}
}
/** Config used to control app ops access messages sampling */
private static MessageSamplingConfig sConfig =
new MessageSamplingConfig(OP_NONE, 0, 0);
/** @hide */
public static final String KEY_HISTORICAL_OPS = "historical_ops";
@@ -7268,6 +7341,17 @@ public class AppOpsManager {
}
}
/** @hide */
private static IAppOpsService getService() {
synchronized (sLock) {
if (sService == null) {
sService = IAppOpsService.Stub.asInterface(
ServiceManager.getService(Context.APP_OPS_SERVICE));
}
return sService;
}
}
/**
* @deprecated use {@link #startOp(String, int, String, String, String)} instead
*/
@@ -7614,6 +7698,7 @@ public class AppOpsManager {
sNotedAppOpsCollector.onSelfNoted(new SyncNotedAppOp(op, featureId));
}
}
sMessageCollector.onSelfNoted(new SyncNotedAppOp(op, featureId));
}
/**
@@ -7764,6 +7849,10 @@ public class AppOpsManager {
}
}
}
for (int code = notedAppOps.nextSetBit(0); code != -1;
code = notedAppOps.nextSetBit(code + 1)) {
sMessageCollector.onNoted(new SyncNotedAppOp(code, featureId));
}
}
}
}
@@ -7958,10 +8047,13 @@ public class AppOpsManager {
StringBuilder sb = new StringBuilder();
for (int i = firstInteresting; i <= lastInteresting; i++) {
sb.append(trace[i]);
if (i != lastInteresting) {
if (i != firstInteresting) {
sb.append('\n');
}
if (sb.length() + trace[i].toString().length() > 600) {
break;
}
sb.append(trace[i]);
}
return sb.toString();
@@ -8088,6 +8180,22 @@ public class AppOpsManager {
}
}
/**
* Pulls current AppOps access report and picks package and op to watch for next access report
*
* @hide
*/
@SystemApi
@TestApi
@RequiresPermission(Manifest.permission.GET_APP_OPS_STATS)
public @Nullable RuntimeAppOpAccessMessage collectRuntimeAppOpAccessMessage() {
try {
return mService.collectRuntimeAppOpAccessMessage();
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
/**
* Returns all supported operation names.
* @hide
@@ -8297,4 +8405,12 @@ public class AppOpsManager {
return AppOpsManager.MODE_DEFAULT;
}
/**
* Calculate left circular distance for two numbers modulo size.
* @hide
*/
public static int leftCircularDistance(int from, int to, int size) {
return (to + size - from) % size;
}
}

19
core/java/android/app/RuntimeAppOpAccessMessage.aidl Normal file
View File

@@ -0,0 +1,19 @@
/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.app;
parcelable RuntimeAppOpAccessMessage;

245
core/java/android/app/RuntimeAppOpAccessMessage.java Normal file
View File

@@ -0,0 +1,245 @@
/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.app;
import android.annotation.IntRange;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.annotation.SystemApi;
import android.annotation.TestApi;
import android.os.Parcel;
import android.os.Parcelable;
import com.android.internal.annotations.Immutable;
import com.android.internal.util.DataClass;
/**
* Message for noted runtime permission access.
* @hide
*/
@Immutable
@TestApi
@SystemApi
/*@DataClass(genConstructor = false)
@DataClass.Suppress("getOpCode")*/
public final class RuntimeAppOpAccessMessage implements Parcelable {
/** Uid of package for which runtime app op access message was collected */
private final @IntRange(from = 0L) int mUid;
/** Op code of operation access which was collected */
private final @IntRange(from = 0L, to = AppOpsManager._NUM_OP - 1) int mOpCode;
/** Name of package for which runtime app op access message was collected */
private final @NonNull String mPackageName;
/** Feature of package for which runtime app op access message was collected */
private final @Nullable String mFeatureId;
/** Message collected (including stacktrace for synchronous ops) */
private final @NonNull String mMessage;
/** Sampling strategy used to collect this message. */
private final @AppOpsManager.SamplingStrategy int mSamplingStrategy;
public @NonNull String getOp() {
return AppOpsManager.opToPublicName(mOpCode);
}
/**
* Creates a new RuntimeAppOpAccessMessage.
*
* @param uid
* Uid of package for which runtime app op access message was collected
* @param opCode
* Op code of operation access which was collected
* @param packageName
* Name of package for which runtime app op access message was collected
* @param featureId
* Feature of package for which runtime app op access message was collected
* @param message
* Message collected (including stacktrace for synchronous ops)
* @param samplingStrategy
* Sampling strategy used to collect this message.
*/
@DataClass.Generated.Member
public RuntimeAppOpAccessMessage(
@IntRange(from = 0L) int uid,
@IntRange(from = 0L) int opCode,
@NonNull String packageName,
@Nullable String featureId,
@NonNull String message,
@AppOpsManager.SamplingStrategy int samplingStrategy) {
this.mUid = uid;
com.android.internal.util.AnnotationValidations.validate(
IntRange.class, null, mUid,
"from", 0L);
this.mOpCode = opCode;
com.android.internal.util.AnnotationValidations.validate(
IntRange.class, null, mOpCode,
"from", 0L,
"to", AppOpsManager._NUM_OP - 1);
this.mPackageName = packageName;
com.android.internal.util.AnnotationValidations.validate(
NonNull.class, null, mPackageName);
this.mFeatureId = featureId;
this.mMessage = message;
com.android.internal.util.AnnotationValidations.validate(
NonNull.class, null, mMessage);
this.mSamplingStrategy = samplingStrategy;
com.android.internal.util.AnnotationValidations.validate(
AppOpsManager.SamplingStrategy.class, null, mSamplingStrategy);
// onConstructed(); // You can define this method to get a callback
}
// Code below generated by codegen v1.0.14.
//
// DO NOT MODIFY!
// CHECKSTYLE:OFF Generated code
//
// To regenerate run:
// $ codegen $ANDROID_BUILD_TOP/frameworks/base/core/java/android/app/RuntimeAppOpAccessMessage.java
//
// To exclude the generated code from IntelliJ auto-formatting enable (one-time):
// Settings > Editor > Code Style > Formatter Control
//@formatter:off
/**
* Uid of package for which runtime app op access message was collected
*/
@DataClass.Generated.Member
public @IntRange(from = 0L) int getUid() {
return mUid;
}
/**
* Name of package for which runtime app op access message was collected
*/
@DataClass.Generated.Member
public @NonNull String getPackageName() {
return mPackageName;
}
/**
* Feature of package for which runtime app op access message was collected
*/
@DataClass.Generated.Member
public @Nullable String getFeatureId() {
return mFeatureId;
}
/**
* Message collected (including stacktrace for synchronous ops)
*/
@DataClass.Generated.Member
public @NonNull String getMessage() {
return mMessage;
}
/**
* Sampling strategy used to collect this message.
*/
@DataClass.Generated.Member
public @AppOpsManager.SamplingStrategy int getSamplingStrategy() {
return mSamplingStrategy;
}
@Override
@DataClass.Generated.Member
public void writeToParcel(@NonNull Parcel dest, int flags) {
// You can override field parcelling by defining methods like:
// void parcelFieldName(Parcel dest, int flags) { ... }
byte flg = 0;
if (mFeatureId != null) flg |= 0x8;
dest.writeByte(flg);
dest.writeInt(mUid);
dest.writeInt(mOpCode);
dest.writeString(mPackageName);
if (mFeatureId != null) dest.writeString(mFeatureId);
dest.writeString(mMessage);
dest.writeInt(mSamplingStrategy);
}
@Override
@DataClass.Generated.Member
public int describeContents() { return 0; }
/** @hide */
@SuppressWarnings({"unchecked", "RedundantCast"})
@DataClass.Generated.Member
/* package-private */ RuntimeAppOpAccessMessage(@NonNull Parcel in) {
// You can override field unparcelling by defining methods like:
// static FieldType unparcelFieldName(Parcel in) { ... }
byte flg = in.readByte();
int uid = in.readInt();
int opCode = in.readInt();
String packageName = in.readString();
String featureId = (flg & 0x8) == 0 ? null : in.readString();
String message = in.readString();
int samplingStrategy = in.readInt();
this.mUid = uid;
com.android.internal.util.AnnotationValidations.validate(
IntRange.class, null, mUid,
"from", 0L);
this.mOpCode = opCode;
com.android.internal.util.AnnotationValidations.validate(
IntRange.class, null, mOpCode,
"from", 0L,
"to", AppOpsManager._NUM_OP - 1);
this.mPackageName = packageName;
com.android.internal.util.AnnotationValidations.validate(
NonNull.class, null, mPackageName);
this.mFeatureId = featureId;
this.mMessage = message;
com.android.internal.util.AnnotationValidations.validate(
NonNull.class, null, mMessage);
this.mSamplingStrategy = samplingStrategy;
com.android.internal.util.AnnotationValidations.validate(
AppOpsManager.SamplingStrategy.class, null, mSamplingStrategy);
// onConstructed(); // You can define this method to get a callback
}
@DataClass.Generated.Member
public static final @NonNull Parcelable.Creator<RuntimeAppOpAccessMessage> CREATOR
= new Parcelable.Creator<RuntimeAppOpAccessMessage>() {
@Override
public RuntimeAppOpAccessMessage[] newArray(int size) {
return new RuntimeAppOpAccessMessage[size];
}
@Override
public RuntimeAppOpAccessMessage createFromParcel(@NonNull Parcel in) {
return new RuntimeAppOpAccessMessage(in);
}
};
/*@DataClass.Generated(
time = 1581517099127L,
codegenVersion = "1.0.14",
sourceFile = "frameworks/base/core/java/android/app/RuntimeAppOpAccessMessage.java",
inputSignatures = "private final @android.annotation.IntRange(from=0L) int mUid\nprivate final @android.annotation.IntRange(from=0L, to=AppOpsManager._NUM_OP - 1) int mOpCode\nprivate final @android.annotation.NonNull java.lang.String mPackageName\nprivate final @android.annotation.Nullable java.lang.String mFeatureId\nprivate final @android.annotation.NonNull java.lang.String mMessage\nprivate final @android.app.AppOpsManager.SamplingStrategy int mSamplingStrategy\npublic @android.annotation.NonNull java.lang.String getOp()\nclass RuntimeAppOpAccessMessage extends java.lang.Object implements [android.os.Parcelable]\n@com.android.internal.util.DataClass(genConstructor=false)")*/
@Deprecated
private void __metadata() {}
//@formatter:on
// End of generated code
}

19
core/java/android/app/SyncNotedAppOp.aidl Normal file
View File

@@ -0,0 +1,19 @@
/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.app;
parcelable SyncNotedAppOp;

154
core/java/android/app/SyncNotedAppOp.java
View File

@@ -19,8 +19,10 @@ package android.app;
import android.annotation.IntRange;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.os.Parcelable;
import com.android.internal.annotations.Immutable;
import com.android.internal.util.DataClass;
/**
* Description of an app-op that was noted for the current process.
@@ -32,10 +34,35 @@ import com.android.internal.annotations.Immutable;
* itself}.
*/
@Immutable
public final class SyncNotedAppOp {
private final int mOpCode;
/*@DataClass(
genEqualsHashCode = true,
genConstructor = false
)
@DataClass.Suppress("getOpCode")*/
public final class SyncNotedAppOp implements Parcelable {
/** op code of synchronous appop noted */
private final @IntRange(from = 0L, to = AppOpsManager._NUM_OP - 1) int mOpCode;
/** featureId of synchronous appop noted */
private final @Nullable String mFeatureId;
/**
* Creates a new SyncNotedAppOp.
*
* @param opCode
* op code of synchronous appop noted
* @param featureId
* featureId of synchronous appop noted
*/
public SyncNotedAppOp(@IntRange(from = 0L) int opCode, @Nullable String featureId) {
this.mOpCode = opCode;
com.android.internal.util.AnnotationValidations.validate(
IntRange.class, null, mOpCode,
"from", 0,
"to", AppOpsManager._NUM_OP - 1);
this.mFeatureId = featureId;
}
/**
* @return The op that was noted.
*/
@@ -43,37 +70,118 @@ public final class SyncNotedAppOp {
return AppOpsManager.opToPublicName(mOpCode);
}
// Code below generated by codegen v1.0.14.
//
// DO NOT MODIFY!
// CHECKSTYLE:OFF Generated code
//
// To regenerate run:
// $ codegen $ANDROID_BUILD_TOP/frameworks/base/core/java/android/app/SyncNotedAppOp.java
//
// To exclude the generated code from IntelliJ auto-formatting enable (one-time):
// Settings > Editor > Code Style > Formatter Control
//@formatter:off
/**
* @return The {@link android.content.Context#createFeatureContext Feature} in the app
* featureId of synchronous appop noted
*/
@DataClass.Generated.Member
public @Nullable String getFeatureId() {
return mFeatureId;
}
/**
* Create a new sync op description
*
* @param opCode The op that was noted
*
* @hide
*/
public SyncNotedAppOp(@IntRange(from = 0, to = AppOpsManager._NUM_OP - 1) int opCode,
@Nullable String featureId) {
mOpCode = opCode;
mFeatureId = featureId;
@Override
@DataClass.Generated.Member
public boolean equals(@Nullable Object o) {
// You can override field equality logic by defining either of the methods like:
// boolean fieldNameEquals(SyncNotedAppOp other) { ... }
// boolean fieldNameEquals(FieldType otherValue) { ... }
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
@SuppressWarnings("unchecked")
SyncNotedAppOp that = (SyncNotedAppOp) o;
//noinspection PointlessBooleanExpression
return true
&& mOpCode == that.mOpCode
&& java.util.Objects.equals(mFeatureId, that.mFeatureId);
}
@Override
public boolean equals(Object other) {
if (!(other instanceof SyncNotedAppOp)) {
return false;
@DataClass.Generated.Member
public int hashCode() {
// You can override field hashCode logic by defining methods like:
// int fieldNameHashCode() { ... }
int _hash = 1;
_hash = 31 * _hash + mOpCode;
_hash = 31 * _hash + java.util.Objects.hashCode(mFeatureId);
return _hash;
}
@Override
@DataClass.Generated.Member
public void writeToParcel(@NonNull android.os.Parcel dest, int flags) {
// You can override field parcelling by defining methods like:
// void parcelFieldName(Parcel dest, int flags) { ... }
byte flg = 0;
if (mFeatureId != null) flg |= 0x2;
dest.writeByte(flg);
dest.writeInt(mOpCode);
if (mFeatureId != null) dest.writeString(mFeatureId);
}
@Override
@DataClass.Generated.Member
public int describeContents() { return 0; }
/** @hide */
@SuppressWarnings({"unchecked", "RedundantCast"})
@DataClass.Generated.Member
/* package-private */ SyncNotedAppOp(@NonNull android.os.Parcel in) {
// You can override field unparcelling by defining methods like:
// static FieldType unparcelFieldName(Parcel in) { ... }
byte flg = in.readByte();
int opCode = in.readInt();
String featureId = (flg & 0x2) == 0 ? null : in.readString();
this.mOpCode = opCode;
com.android.internal.util.AnnotationValidations.validate(
IntRange.class, null, mOpCode,
"from", 0,
"to", AppOpsManager._NUM_OP - 1);
this.mFeatureId = featureId;
// onConstructed(); // You can define this method to get a callback
}
@DataClass.Generated.Member
public static final @NonNull Parcelable.Creator<SyncNotedAppOp> CREATOR
= new Parcelable.Creator<SyncNotedAppOp>() {
@Override
public SyncNotedAppOp[] newArray(int size) {
return new SyncNotedAppOp[size];
}
return mOpCode == ((SyncNotedAppOp) other).mOpCode;
}
@Override
public SyncNotedAppOp createFromParcel(@NonNull android.os.Parcel in) {
return new SyncNotedAppOp(in);
}
};
/*@DataClass.Generated(
time = 1579188889960L,
codegenVersion = "1.0.14",
sourceFile = "frameworks/base/core/java/android/app/SyncNotedAppOp.java",
inputSignatures = "private final @android.annotation.IntRange(from=0L, to=AppOpsManager._NUM_OP - 1) int mOpCode\nprivate final @android.annotation.Nullable java.lang.String mFeatureId\npublic @android.annotation.NonNull java.lang.String getOp()\npublic @android.annotation.SystemApi int getOpCode()\nclass SyncNotedAppOp extends java.lang.Object implements [android.os.Parcelable]\n@com.android.internal.util.DataClass(genEqualsHashCode=true, genConstructor=false)")*/
@Deprecated
private void __metadata() {}
//@formatter:on
// End of generated code
@Override
public int hashCode() {
return mOpCode;
}
}

6
core/java/com/android/internal/app/IAppOpsService.aidl
View File

@@ -18,6 +18,8 @@ package com.android.internal.app;
import android.app.AppOpsManager;
import android.app.AsyncNotedAppOp;
import android.app.SyncNotedAppOp;
import android.app.RuntimeAppOpAccessMessage;
import android.content.pm.ParceledListSlice;
import android.os.Bundle;
import android.os.RemoteCallback;
@@ -25,6 +27,7 @@ import com.android.internal.app.IAppOpsCallback;
import com.android.internal.app.IAppOpsActiveCallback;
import com.android.internal.app.IAppOpsAsyncNotedCallback;
import com.android.internal.app.IAppOpsNotedCallback;
import com.android.internal.app.MessageSamplingConfig;
interface IAppOpsService {
// These methods are also called by native code, so must
@@ -54,6 +57,9 @@ interface IAppOpsService {
// Remaining methods are only used in Java.
int checkPackage(int uid, String packageName);
RuntimeAppOpAccessMessage collectRuntimeAppOpAccessMessage();
MessageSamplingConfig reportRuntimeAppOpAccessMessageAndGetConfig(String packageName,
in SyncNotedAppOp appOp, String message);
@UnsupportedAppUsage
List<AppOpsManager.PackageOps> getPackagesForOps(in int[] ops);
@UnsupportedAppUsage

19
core/java/com/android/internal/app/MessageSamplingConfig.aidl Normal file
View File

@@ -0,0 +1,19 @@
/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.internal.app;
parcelable MessageSamplingConfig;

187
core/java/com/android/internal/app/MessageSamplingConfig.java Normal file
View File

@@ -0,0 +1,187 @@
/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.internal.app;
import android.annotation.IntRange;
import android.annotation.NonNull;
import android.app.AppOpsManager;
import android.os.Parcel;
import android.os.Parcelable;
import com.android.internal.annotations.Immutable;
import com.android.internal.util.DataClass;
/**
* Configuration for AppOps access messages sampling.
*/
@Immutable
/*@DataClass*/
public final class MessageSamplingConfig implements Parcelable {
/** Op code targeted during current sampling session */
private final @IntRange(from = -1L, to = AppOpsManager._NUM_OP - 1) int mSampledOpCode;
/** Range of ops which should be reported during current sampling session */
private final @IntRange(from = 0L, to = AppOpsManager._NUM_OP - 1) int mAcceptableLeftDistance;
/** Expiration time for this sampling config */
private final @IntRange(from = 0L) long mExpirationTimeSinceBootMillis;
// Code below generated by codegen v1.0.14.
//
// DO NOT MODIFY!
// CHECKSTYLE:OFF Generated code
//
// To regenerate run:
// $ codegen $ANDROID_BUILD_TOP/frameworks/base/core/java/com/android/internal/app/MessageSamplingConfig.java
//
// To exclude the generated code from IntelliJ auto-formatting enable (one-time):
// Settings > Editor > Code Style > Formatter Control
//@formatter:off
/**
* Creates a new MessageSamplingConfig.
*
* @param sampledOpCode
* Op code targeted during current sampling session
* @param acceptableLeftDistance
* Range of ops which should be reported during current sampling session
* @param expirationTimeSinceBootMillis
* Expiration time for this sampling config
*/
@DataClass.Generated.Member
public MessageSamplingConfig(
@IntRange(from = -1L, to = AppOpsManager._NUM_OP - 1) int sampledOpCode,
@IntRange(from = 0L, to = AppOpsManager._NUM_OP - 1) int acceptableLeftDistance,
@IntRange(from = 0L) long expirationTimeSinceBootMillis) {
this.mSampledOpCode = sampledOpCode;
com.android.internal.util.AnnotationValidations.validate(
IntRange.class, null, mSampledOpCode,
"from", -1L,
"to", AppOpsManager._NUM_OP - 1);
this.mAcceptableLeftDistance = acceptableLeftDistance;
com.android.internal.util.AnnotationValidations.validate(
IntRange.class, null, mAcceptableLeftDistance,
"from", 0L,
"to", AppOpsManager._NUM_OP - 1);
this.mExpirationTimeSinceBootMillis = expirationTimeSinceBootMillis;
com.android.internal.util.AnnotationValidations.validate(
IntRange.class, null, mExpirationTimeSinceBootMillis,
"from", 0L);
// onConstructed(); // You can define this method to get a callback
}
/**
* Op code targeted during current sampling session
*/
@DataClass.Generated.Member
public @IntRange(from = -1L, to = AppOpsManager._NUM_OP - 1) int getSampledOpCode() {
return mSampledOpCode;
}
/**
* Range of ops which should be reported during current sampling session
*/
@DataClass.Generated.Member
public @IntRange(from = 0L, to = AppOpsManager._NUM_OP - 1) int getAcceptableLeftDistance() {
return mAcceptableLeftDistance;
}
/**
* Expiration time for this sampling config
*/
@DataClass.Generated.Member
public @IntRange(from = 0L) long getExpirationTimeSinceBootMillis() {
return mExpirationTimeSinceBootMillis;
}
@Override
@DataClass.Generated.Member
public void writeToParcel(@NonNull Parcel dest, int flags) {
// You can override field parcelling by defining methods like:
// void parcelFieldName(Parcel dest, int flags) { ... }
dest.writeInt(mSampledOpCode);
dest.writeInt(mAcceptableLeftDistance);
dest.writeLong(mExpirationTimeSinceBootMillis);
}
@Override
@DataClass.Generated.Member
public int describeContents() { return 0; }
/** @hide */
@SuppressWarnings({"unchecked", "RedundantCast"})
@DataClass.Generated.Member
/* package-private */ MessageSamplingConfig(@NonNull Parcel in) {
// You can override field unparcelling by defining methods like:
// static FieldType unparcelFieldName(Parcel in) { ... }
int sampledOpCode = in.readInt();
int acceptableLeftDistance = in.readInt();
long expirationTimeSinceBootMillis = in.readLong();
this.mSampledOpCode = sampledOpCode;
com.android.internal.util.AnnotationValidations.validate(
IntRange.class, null, mSampledOpCode,
"from", -1L,
"to", AppOpsManager._NUM_OP - 1);
this.mAcceptableLeftDistance = acceptableLeftDistance;
com.android.internal.util.AnnotationValidations.validate(
IntRange.class, null, mAcceptableLeftDistance,
"from", 0L,
"to", AppOpsManager._NUM_OP - 1);
this.mExpirationTimeSinceBootMillis = expirationTimeSinceBootMillis;
com.android.internal.util.AnnotationValidations.validate(
IntRange.class, null, mExpirationTimeSinceBootMillis,
"from", 0L);
// onConstructed(); // You can define this method to get a callback
}
@DataClass.Generated.Member
public static final @NonNull Parcelable.Creator<MessageSamplingConfig> CREATOR
= new Parcelable.Creator<MessageSamplingConfig>() {
@Override
public MessageSamplingConfig[] newArray(int size) {
return new MessageSamplingConfig[size];
}
@Override
public MessageSamplingConfig createFromParcel(@NonNull Parcel in) {
return new MessageSamplingConfig(in);
}
};
/*@DataClass.Generated(
time = 1580691255495L,
codegenVersion = "1.0.14",
sourceFile = "frameworks/base/core/java/com/android/internal/app/MessageSamplingConfig.java",
inputSignatures = "private final @android.annotation.IntRange(from=-1L, to=AppOpsManager._NUM_OP - 1) int mSampledOpCode\nprivate final @android.annotation.IntRange(from=0L, to=AppOpsManager._NUM_OP - 1) int mAcceptableLeftDistance\nprivate final @android.annotation.IntRange(from=0L) long mExpirationTimeSinceBootMillis\nclass MessageSamplingConfig extends java.lang.Object implements [android.os.Parcelable]\n@com.android.internal.util.DataClass")*/
@Deprecated
private void __metadata() {}
//@formatter:on
// End of generated code
}

297
services/core/java/com/android/server/appop/AppOpsService.java
View File

@@ -34,6 +34,7 @@ import static android.app.AppOpsManager.OP_CAMERA;
import static android.app.AppOpsManager.OP_COARSE_LOCATION;
import static android.app.AppOpsManager.OP_FLAGS_ALL;
import static android.app.AppOpsManager.OP_FLAG_SELF;
import static android.app.AppOpsManager.OP_FLAG_TRUSTED_PROXIED;
import static android.app.AppOpsManager.OP_NONE;
import static android.app.AppOpsManager.OP_PLAY_AUDIO;
import static android.app.AppOpsManager.OP_RECORD_AUDIO;
@@ -52,11 +53,14 @@ import static android.app.AppOpsManager.extractUidStateFromKey;
import static android.app.AppOpsManager.makeKey;
import static android.app.AppOpsManager.modeToName;
import static android.app.AppOpsManager.opToName;
import static android.app.AppOpsManager.opToPublicName;
import static android.app.AppOpsManager.resolveFirstUnrestrictedUidState;
import static android.content.Intent.ACTION_PACKAGE_REMOVED;
import static android.content.Intent.EXTRA_REPLACING;
import static android.content.pm.PermissionInfo.PROTECTION_DANGEROUS;
import static android.content.pm.PermissionInfo.PROTECTION_FLAG_APPOP;
import static android.util.StatsLogInternal.RUNTIME_APP_OP_ACCESS__SAMPLING_STRATEGY__RARELY_USED;
import static android.util.StatsLogInternal.RUNTIME_APP_OP_ACCESS__SAMPLING_STRATEGY__UNIFORM;
import static com.android.server.appop.AppOpsService.ModeCallback.ALL_OPS;
@@ -79,6 +83,8 @@ import android.app.AppOpsManager.OpFlags;
import android.app.AppOpsManagerInternal;
import android.app.AppOpsManagerInternal.CheckOpsDelegate;
import android.app.AsyncNotedAppOp;
import android.app.RuntimeAppOpAccessMessage;
import android.app.SyncNotedAppOp;
import android.compat.Compatibility;
import android.content.BroadcastReceiver;
import android.content.ContentResolver;
@@ -87,6 +93,7 @@ import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.ApplicationInfo;
import android.content.pm.IPackageManager;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManagerInternal;
import android.content.pm.PermissionInfo;
@@ -137,6 +144,7 @@ import com.android.internal.app.IAppOpsAsyncNotedCallback;
import com.android.internal.app.IAppOpsCallback;
import com.android.internal.app.IAppOpsNotedCallback;
import com.android.internal.app.IAppOpsService;
import com.android.internal.app.MessageSamplingConfig;
import com.android.internal.os.Zygote;
import com.android.internal.util.ArrayUtils;
import com.android.internal.util.DumpUtils;
@@ -147,6 +155,7 @@ import com.android.internal.util.function.pooled.PooledLambda;
import com.android.server.LocalServices;
import com.android.server.LockGuard;
import com.android.server.SystemServerInitThreadPool;
import com.android.server.pm.PackageList;
import libcore.util.EmptyArray;
@@ -163,6 +172,8 @@ import java.io.IOException;
import java.io.PrintWriter;
import java.nio.charset.StandardCharsets;
import java.text.SimpleDateFormat;
import java.time.Instant;
import java.time.temporal.ChronoUnit;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
@@ -172,6 +183,8 @@ import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.concurrent.ThreadLocalRandom;
import java.util.function.Consumer;
public class AppOpsService extends IAppOpsService.Stub {
static final String TAG = "AppOps";
@@ -308,6 +321,34 @@ public class AppOpsService extends IAppOpsService.Stub {
private ActivityManagerInternal mActivityManagerInternal;
/** Package sampled for message collection in the current session */
@GuardedBy("this")
private String mSampledPackage = null;
/** Appop sampled for message collection in the current session */
@GuardedBy("this")
private int mSampledAppOpCode = OP_NONE;
/** Maximum distance for appop to be considered for message collection in the current session */
@GuardedBy("this")
private int mAcceptableLeftDistance = 0;
/** Number of messages collected for sampled package and appop in the current session */
@GuardedBy("this")
private float mMessagesCollectedCount;
/** List of rarely used packages priorities for message collection */
@GuardedBy("this")
private ArraySet<String> mRarelyUsedPackages = new ArraySet<>();
/** Sampling strategy used for current session */
@GuardedBy("this")
@AppOpsManager.SamplingStrategy
private int mSamplingStrategy;
/** Last runtime permission access message collected and ready for reporting */
@GuardedBy("this")
private RuntimeAppOpAccessMessage mCollectedRuntimePermissionMessage;
/**
* An unsynchronized pool of {@link OpEventProxyInfo} objects.
*/
@@ -1542,6 +1583,38 @@ public class AppOpsService extends IAppOpsService.Stub {
}
}, packageSuspendFilter);
final IntentFilter packageAddedFilter = new IntentFilter();
packageAddedFilter.addAction(Intent.ACTION_PACKAGE_ADDED);
packageAddedFilter.addDataScheme("package");
mContext.registerReceiver(new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
final Uri data = intent.getData();
final String packageName = data.getSchemeSpecificPart();
PackageInfo pi = LocalServices.getService(
PackageManagerInternal.class).getPackageInfo(packageName,
PackageManager.GET_PERMISSIONS, Process.myUid(), mContext.getUserId());
if (isSamplingTarget(pi)) {
synchronized (this) {
mRarelyUsedPackages.add(packageName);
}
}
}
}, packageAddedFilter);
List<String> packageNames = getPackageNamesForSampling();
synchronized (this) {
resamplePackageAndAppOpLocked(packageNames);
}
AsyncTask.THREAD_POOL_EXECUTOR.execute(new Runnable() {
@Override
public void run() {
initializeRarelyUsedPackagesList(new ArraySet<>(packageNames));
}
});
PackageManagerInternal packageManagerInternal = LocalServices.getService(
PackageManagerInternal.class);
packageManagerInternal.setExternalSourcesPolicy(
@@ -3037,6 +3110,9 @@ public class AppOpsService extends IAppOpsService.Stub {
featureId, message, System.currentTimeMillis());
final boolean[] wasNoteForwarded = {false};
reportRuntimeAppOpAccessMessageAsyncLocked(uid, packageName, opCode, featureId,
message);
if (callbacks != null) {
callbacks.broadcast((cb) -> {
try {
@@ -5501,6 +5577,227 @@ public class AppOpsService extends IAppOpsService.Stub {
mHistoricalRegistry.clearHistory();
}
/**
* Report runtime access to AppOp together with message (including stack trace)
*
* @param packageName The package which reported the op
* @param notedAppOp contains code of op and featureId provided by developer
* @param message Message describing AppOp access (can be stack trace)
*
* @return Config for future sampling to reduce amount of reporting
*/
@Override
public MessageSamplingConfig reportRuntimeAppOpAccessMessageAndGetConfig(
String packageName, SyncNotedAppOp notedAppOp, String message) {
int uid = Binder.getCallingUid();
Objects.requireNonNull(packageName);
synchronized (this) {
switchPackageIfRarelyUsedLocked(packageName);
if (!packageName.equals(mSampledPackage)) {
return new MessageSamplingConfig(OP_NONE, 0,
Instant.now().plus(1, ChronoUnit.HOURS).toEpochMilli());
}
Objects.requireNonNull(notedAppOp);
Objects.requireNonNull(message);
reportRuntimeAppOpAccessMessageInternalLocked(uid, packageName,
AppOpsManager.strOpToOp(notedAppOp.getOp()),
notedAppOp.getFeatureId(), message);
return new MessageSamplingConfig(mSampledAppOpCode, mAcceptableLeftDistance,
Instant.now().plus(1, ChronoUnit.HOURS).toEpochMilli());
}
}
/**
* Report runtime access to AppOp together with message (entry point for reporting
* asynchronous access)
* @param uid Uid of the package which reported the op
* @param packageName The package which reported the op
* @param opCode Code of AppOp
* @param featureId FeautreId of AppOp reported
* @param message Message describing AppOp access (can be stack trace)
*/
private void reportRuntimeAppOpAccessMessageAsyncLocked(int uid,
@NonNull String packageName, int opCode, @Nullable String featureId,
@NonNull String message) {
switchPackageIfRarelyUsedLocked(packageName);
if (!Objects.equals(mSampledPackage, packageName)) {
return;
}
reportRuntimeAppOpAccessMessageInternalLocked(uid, packageName, opCode, featureId, message);
}
/**
* Decides whether reported message is within the range of watched AppOps and picks it for
* reporting uniformly at random across all received messages.
*/
private void reportRuntimeAppOpAccessMessageInternalLocked(int uid,
@NonNull String packageName, int opCode, @Nullable String featureId,
@NonNull String message) {
int newLeftDistance = AppOpsManager.leftCircularDistance(opCode,
mSampledAppOpCode, _NUM_OP);
if (mAcceptableLeftDistance < newLeftDistance) {
return;
}
if (mAcceptableLeftDistance > newLeftDistance) {
mAcceptableLeftDistance = newLeftDistance;
mMessagesCollectedCount = 0.0f;
}
mMessagesCollectedCount += 1.0f;
if (ThreadLocalRandom.current().nextFloat() <= 1.0f / mMessagesCollectedCount) {
mCollectedRuntimePermissionMessage = new RuntimeAppOpAccessMessage(uid, opCode,
packageName, featureId, message, mSamplingStrategy);
}
return;
}
/** Pulls current AppOps access report and resamples package and app op to watch */
@Override
public @Nullable RuntimeAppOpAccessMessage collectRuntimeAppOpAccessMessage() {
mContext.enforcePermission(android.Manifest.permission.GET_APP_OPS_STATS,
Binder.getCallingPid(), Binder.getCallingUid(), null);
RuntimeAppOpAccessMessage result;
List<String> packageNames = getPackageNamesForSampling();
synchronized (this) {
result = mCollectedRuntimePermissionMessage;
resamplePackageAndAppOpLocked(packageNames);
}
return result;
}
/**
* Checks if package is in the list of rarely used package and starts watching the new package
* to collect incoming message.
* @param packageName
*/
private void switchPackageIfRarelyUsedLocked(@NonNull String packageName) {
if (mRarelyUsedPackages.contains(packageName)) {
mRarelyUsedPackages.remove(packageName);
if (ThreadLocalRandom.current().nextFloat() < 0.5f) {
mSamplingStrategy = RUNTIME_APP_OP_ACCESS__SAMPLING_STRATEGY__RARELY_USED;
resampleAppOpForPackageLocked(packageName);
}
}
}
/** Resamples package and appop to watch from the list provided. */
private void resamplePackageAndAppOpLocked(@NonNull List<String> packageNames) {
if (!packageNames.isEmpty()) {
mSamplingStrategy = RUNTIME_APP_OP_ACCESS__SAMPLING_STRATEGY__UNIFORM;
resampleAppOpForPackageLocked(packageNames.get(
ThreadLocalRandom.current().nextInt(packageNames.size())));
}
}
/** Resamples appop for the chosen package and initializes sampling state */
private void resampleAppOpForPackageLocked(@NonNull String packageName) {
mMessagesCollectedCount = 0.0f;
mSampledAppOpCode = ThreadLocalRandom.current().nextInt(_NUM_OP);
mAcceptableLeftDistance = _NUM_OP;
mSampledPackage = packageName;
mCollectedRuntimePermissionMessage = null;
}
/**
* Creates list of rarely used packages - packages which were not used over last week or
* which declared but did not use permissions over last week.
* */
private void initializeRarelyUsedPackagesList(@NonNull ArraySet<String> candidates) {
AppOpsManager appOps = mContext.getSystemService(AppOpsManager.class);
List<String> runtimeAppOpsList = getRuntimeAppOpsList();
AppOpsManager.HistoricalOpsRequest histOpsRequest =
new AppOpsManager.HistoricalOpsRequest.Builder(
Instant.now().minus(7, ChronoUnit.DAYS).toEpochMilli(),
Long.MAX_VALUE).setOpNames(runtimeAppOpsList).setFlags(
OP_FLAG_SELF | OP_FLAG_TRUSTED_PROXIED).build();
appOps.getHistoricalOps(histOpsRequest, AsyncTask.THREAD_POOL_EXECUTOR,
new Consumer<HistoricalOps>() {
@Override
public void accept(HistoricalOps histOps) {
int uidCount = histOps.getUidCount();
for (int uidIdx = 0; uidIdx < uidCount; uidIdx++) {
final AppOpsManager.HistoricalUidOps uidOps = histOps.getUidOpsAt(
uidIdx);
int pkgCount = uidOps.getPackageCount();
for (int pkgIdx = 0; pkgIdx < pkgCount; pkgIdx++) {
String packageName = uidOps.getPackageOpsAt(
pkgIdx).getPackageName();
if (!candidates.contains(packageName)) {
continue;
}
AppOpsManager.HistoricalPackageOps packageOps =
uidOps.getPackageOpsAt(pkgIdx);
if (packageOps.getOpCount() != 0) {
candidates.remove(packageName);
}
}
}
synchronized (this) {
mRarelyUsedPackages = candidates;
}
}
});
}
/** List of app ops related to runtime permissions */
private List<String> getRuntimeAppOpsList() {
ArrayList<String> result = new ArrayList();
for (int i = 0; i < _NUM_OP; i++) {
if (shouldCollectNotes(i)) {
result.add(opToPublicName(i));
}
}
return result;
}
/** Returns list of packages to be used for package sampling */
private @NonNull List<String> getPackageNamesForSampling() {
List<String> packageNames = new ArrayList<>();
PackageManagerInternal packageManagerInternal = LocalServices.getService(
PackageManagerInternal.class);
PackageList packages = packageManagerInternal.getPackageList();
for (String packageName : packages.getPackageNames()) {
PackageInfo pkg = packageManagerInternal.getPackageInfo(packageName,
PackageManager.GET_PERMISSIONS, Process.myUid(), mContext.getUserId());
if (isSamplingTarget(pkg)) {
packageNames.add(pkg.packageName);
}
}
return packageNames;
}
/** Checks whether package should be included in sampling pool */
private boolean isSamplingTarget(@Nullable PackageInfo pkg) {
if (pkg == null) {
return false;
}
if (pkg.applicationInfo.targetSdkVersion <= Build.VERSION_CODES.Q) {
return false;
}
String[] requestedPermissions = pkg.requestedPermissions;
if (requestedPermissions == null) {
return false;
}
for (String permission : requestedPermissions) {
PermissionInfo permissionInfo;
try {
permissionInfo = mContext.getPackageManager().getPermissionInfo(permission, 0);
} catch (PackageManager.NameNotFoundException ignored) {
continue;
}
if (permissionInfo.getProtection() == PROTECTION_DANGEROUS) {
return true;
}
}
return false;
}
private void removeUidsForUserLocked(int userHandle) {
for (int i = mUidStates.size() - 1; i >= 0; --i) {
final int uid = mUidStates.keyAt(i);