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Commit 102d3d86 authored by Evgenii Stepanov's avatar Evgenii Stepanov
Browse files

Add "enableGwpAsan" tag to android manifest. 

This tag can be used to enable and disable gwp-asan on applications and
their components. The default setting is disabled, except for the system
applications which are enabled with a small probability (approx. 1% of
processes).

Enabling gwp-asan can be used to crowd test an app.

This change includes a compat feature that overrides the default value
of enableGwpAsan for an app.

Bug: 149991821
Test: atest CtsGwpAsanTestCases
Exempt-From-Owner-Approval: cherrypick
Merged-In: I5eb647c517e5487b1d1eed6b9a43242490f19289
Change-Id: I5b4db666f38af846927f88702cc690f0916cadb1
parent 3c706cfc

api/current.txt

+2 −0
Original line number Diff line number Diff line
@@ -572,6 +572,7 @@ package android { 
    field public static final int elevation = 16843840; // 0x1010440

    field public static final int ellipsize = 16842923; // 0x10100ab

    field public static final int ems = 16843096; // 0x1010158

    field public static final int enableGwpAsan = 16844310; // 0x1010616

    field public static final int enableVrMode = 16844069; // 0x1010525

    field public static final int enabled = 16842766; // 0x101000e

    field public static final int end = 16843996; // 0x10104dc
@@ -11439,6 +11440,7 @@ package android.content.pm { 
    method public int describeContents();

    method public void dump(android.util.Printer, String);

    method public static CharSequence getCategoryTitle(android.content.Context, int);

    method @Nullable public Boolean isGwpAsanEnabled();

    method public boolean isProfileableByShell();

    method public boolean isResourceOverlay();

    method public boolean isVirtualPreload();

core/java/android/content/pm/ApplicationInfo.java

+25 −1
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ import android.annotation.TestApi; 
import android.compat.annotation.UnsupportedAppUsage;

import android.content.Context;

import android.content.pm.PackageManager.NameNotFoundException;

import android.content.pm.ProcessInfo;

import android.content.res.Resources;

import android.graphics.drawable.Drawable;

import android.os.Build;
@@ -38,6 +39,8 @@ import android.util.SparseArray; 
import android.util.proto.ProtoOutputStream;



import com.android.internal.util.ArrayUtils;

import com.android.internal.util.Parcelling;

import com.android.internal.util.Parcelling.BuiltIn.ForBoolean;

import com.android.server.SystemConfig;



import java.lang.annotation.Retention;
@@ -56,6 +59,7 @@ import java.util.UUID; 
 * <application> tag.

 */

public class ApplicationInfo extends PackageItemInfo implements Parcelable {

    private static ForBoolean sForBoolean = Parcelling.Cache.getOrCreate(ForBoolean.class);



    /**

     * Default task affinity of all activities in this application. See
@@ -1272,6 +1276,14 @@ public class ApplicationInfo extends PackageItemInfo implements Parcelable { 
    /** @hide */

    public String zygotePreloadName;



    /**

     * Indicates if the application has requested GWP-ASan to be enabled, disabled, or left

     * unspecified. Processes can override this setting.

     * @hide

     */

    @Nullable

    public Boolean enableGwpAsan;



    /**

     * Represents the default policy. The actual policy used will depend on other properties of

     * the application, e.g. the target SDK version.
@@ -1413,6 +1425,9 @@ public class ApplicationInfo extends PackageItemInfo implements Parcelable { 
            pw.println(prefix + "usesNonSdkApi=" + usesNonSdkApi());

            pw.println(prefix + "allowsPlaybackCapture="

                        + (isAudioPlaybackCaptureAllowed() ? "true" : "false"));

            if (enableGwpAsan != null) {

                pw.println(prefix + "enableGwpAsan=" + enableGwpAsan);

            }

        }

        super.dumpBack(pw, prefix);

    }
@@ -1511,6 +1526,9 @@ public class ApplicationInfo extends PackageItemInfo implements Parcelable { 
            if (category != CATEGORY_UNDEFINED) {

                proto.write(ApplicationInfoProto.Detail.CATEGORY, category);

            }

            if (enableGwpAsan != null) {

                proto.write(ApplicationInfoProto.Detail.ENABLE_GWP_ASAN, enableGwpAsan);

            }

            proto.end(detailToken);

        }

        proto.end(token);
@@ -1620,6 +1638,7 @@ public class ApplicationInfo extends PackageItemInfo implements Parcelable { 
        mHiddenApiPolicy = orig.mHiddenApiPolicy;

        hiddenUntilInstalled = orig.hiddenUntilInstalled;

        zygotePreloadName = orig.zygotePreloadName;

        enableGwpAsan = orig.enableGwpAsan;

    }



    public String toString() {
@@ -1703,6 +1722,7 @@ public class ApplicationInfo extends PackageItemInfo implements Parcelable { 
        dest.writeInt(mHiddenApiPolicy);

        dest.writeInt(hiddenUntilInstalled ? 1 : 0);

        dest.writeString(zygotePreloadName);

        sForBoolean.parcel(enableGwpAsan, dest, parcelableFlags);

    }



    public static final @android.annotation.NonNull Parcelable.Creator<ApplicationInfo> CREATOR
@@ -1783,6 +1803,7 @@ public class ApplicationInfo extends PackageItemInfo implements Parcelable { 
        mHiddenApiPolicy = source.readInt();

        hiddenUntilInstalled = source.readInt() != 0;

        zygotePreloadName = source.readString();

        enableGwpAsan = sForBoolean.unparcel(source);

    }



    /**
@@ -2161,6 +2182,7 @@ public class ApplicationInfo extends PackageItemInfo implements Parcelable { 
    /** {@hide} */ public void setResourcePath(String resourcePath) { scanPublicSourceDir = resourcePath; }

    /** {@hide} */ public void setBaseResourcePath(String baseResourcePath) { publicSourceDir = baseResourcePath; }

    /** {@hide} */ public void setSplitResourcePaths(String[] splitResourcePaths) { splitPublicSourceDirs = splitResourcePaths; }

    /** {@hide} */ public void setGwpAsanEnabled(@Nullable Boolean value) { enableGwpAsan = value; }



    /** {@hide} */

    @UnsupportedAppUsage
@@ -2172,4 +2194,6 @@ public class ApplicationInfo extends PackageItemInfo implements Parcelable { 
    @UnsupportedAppUsage

    public String getBaseResourcePath() { return publicSourceDir; }

    /** {@hide} */ public String[] getSplitResourcePaths() { return splitPublicSourceDirs; }

    @Nullable

    public Boolean isGwpAsanEnabled() { return enableGwpAsan; }

}

core/java/android/content/pm/ProcessInfo.java

+123 −32
Original line number Diff line number Diff line
@@ -23,66 +23,157 @@ import android.os.Parcelable; 
import android.text.TextUtils;

import android.util.ArraySet;



import com.android.internal.util.DataClass;

import com.android.internal.util.Parcelling;



/**

 * Information about a process an app may run.  This corresponds to information collected from the

 * AndroidManifest.xml's &lt;permission-group&gt; tags.

 * @hide

 */

@DataClass(genGetters = true, genSetters = false, genParcelable = true, genAidl = false,

        genBuilder = false)

public class ProcessInfo implements Parcelable {

    /**

     * The name of the process, fully-qualified based on the app's package name.

     */

    @NonNull

    public String name;



    /**

     * If non-null, these are permissions that are not allowed in this process.

     */

    @Nullable

    @DataClass.ParcelWith(Parcelling.BuiltIn.ForInternedStringArraySet.class)

    public ArraySet<String> deniedPermissions;



    public ProcessInfo(String name, ArraySet<String> deniedPermissions) {

        this.name = name;

        this.deniedPermissions = deniedPermissions;

    }

    /**

     * Indicates if the process has requested GWP-ASan to be enabled, disabled, or left unspecified.

     */

    @Nullable

    public Boolean enableGwpAsan;



    @Deprecated

    public ProcessInfo(@NonNull ProcessInfo orig) {

        this.name = orig.name;

        this.deniedPermissions = orig.deniedPermissions;

        this.enableGwpAsan = orig.enableGwpAsan;

    }



    public int describeContents() {

        return 0;





    // Code below generated by codegen v1.0.15.

    //

    // DO NOT MODIFY!

    // CHECKSTYLE:OFF Generated code

    //

    // To regenerate run:

    // $ codegen $ANDROID_BUILD_TOP/frameworks/base/core/java/android/content/pm/ProcessInfo.java

    //

    // To exclude the generated code from IntelliJ auto-formatting enable (one-time):

    //   Settings > Editor > Code Style > Formatter Control

    //@formatter:off





    /**

     * Creates a new ProcessInfo.

     *

     * @param name

     *   The name of the process, fully-qualified based on the app's package name.

     * @param deniedPermissions

     *   If non-null, these are permissions that are not allowed in this process.

     * @param enableGwpAsan

     *   Indicates if the process has requested GWP-ASan to be enabled, disabled, or left unspecified.

     */

    @DataClass.Generated.Member

    public ProcessInfo(

            @NonNull String name,

            @Nullable ArraySet<String> deniedPermissions,

            @Nullable Boolean enableGwpAsan) {

        this.name = name;

        com.android.internal.util.AnnotationValidations.validate(

                NonNull.class, null, name);

        this.deniedPermissions = deniedPermissions;

        this.enableGwpAsan = enableGwpAsan;



        // onConstructed(); // You can define this method to get a callback

    }



    public void writeToParcel(Parcel dest, int parcelableFlags) {

        dest.writeString(this.name);

        final int numDenied = this.deniedPermissions != null

                ? this.deniedPermissions.size() : 0;

        dest.writeInt(numDenied);

        for (int i = 0; i < numDenied; i++) {

            dest.writeString(this.deniedPermissions.valueAt(i));

    @DataClass.Generated.Member

    static Parcelling<ArraySet<String>> sParcellingForDeniedPermissions =

            Parcelling.Cache.get(

                    Parcelling.BuiltIn.ForInternedStringArraySet.class);

    static {

        if (sParcellingForDeniedPermissions == null) {

            sParcellingForDeniedPermissions = Parcelling.Cache.put(

                    new Parcelling.BuiltIn.ForInternedStringArraySet());

        }

    }



    public static final @NonNull Creator<ProcessInfo> CREATOR =

            new Creator<ProcessInfo>() {

                public ProcessInfo createFromParcel(Parcel source) {

                    return new ProcessInfo(source);

    @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 (deniedPermissions != null) flg |= 0x2;

        if (enableGwpAsan != null) flg |= 0x4;

        dest.writeByte(flg);

        dest.writeString(name);

        sParcellingForDeniedPermissions.parcel(deniedPermissions, dest, flags);

        if (enableGwpAsan != null) dest.writeBoolean(enableGwpAsan);

    }



    @Override

    @DataClass.Generated.Member

    public int describeContents() { return 0; }



    /** @hide */

    @SuppressWarnings({"unchecked", "RedundantCast"})

    @DataClass.Generated.Member

    protected ProcessInfo(@NonNull Parcel in) {

        // You can override field unparcelling by defining methods like:

        // static FieldType unparcelFieldName(Parcel in) { ... }



        byte flg = in.readByte();

        String _name = in.readString();

        ArraySet<String> _deniedPermissions = sParcellingForDeniedPermissions.unparcel(in);

        Boolean _enableGwpAsan = (flg & 0x4) == 0 ? null : (Boolean) in.readBoolean();



        this.name = _name;

        com.android.internal.util.AnnotationValidations.validate(

                NonNull.class, null, name);

        this.deniedPermissions = _deniedPermissions;

        this.enableGwpAsan = _enableGwpAsan;



        // onConstructed(); // You can define this method to get a callback

    }



    @DataClass.Generated.Member

    public static final @NonNull Parcelable.Creator<ProcessInfo> CREATOR

            = new Parcelable.Creator<ProcessInfo>() {

        @Override

        public ProcessInfo[] newArray(int size) {

            return new ProcessInfo[size];

        }

            };



    private ProcessInfo(Parcel source) {

        this.name = source.readString();

        final int numDenied = source.readInt();

        if (numDenied > 0) {

            this.deniedPermissions = new ArraySet<>(numDenied);

            for (int i = numDenied - 1; i >= 0; i--) {

                this.deniedPermissions.add(TextUtils.safeIntern(source.readString()));

            }

        }

        @Override

        public ProcessInfo createFromParcel(@NonNull Parcel in) {

            return new ProcessInfo(in);

        }

    };



    @DataClass.Generated(

            time = 1582840056156L,

            codegenVersion = "1.0.15",

            sourceFile = "frameworks/base/core/java/android/content/pm/ProcessInfo.java",

            inputSignatures = "public @android.annotation.NonNull java.lang.String name\npublic @android.annotation.Nullable @com.android.internal.util.DataClass.ParcelWith(com.android.internal.util.Parcelling.BuiltIn.ForInternedStringArraySet.class) android.util.ArraySet<java.lang.String> deniedPermissions\npublic @android.annotation.Nullable java.lang.Boolean enableGwpAsan\nclass ProcessInfo extends java.lang.Object implements [android.os.Parcelable]\n@com.android.internal.util.DataClass(genGetters=true, genSetters=false, genParcelable=true, genAidl=false, genBuilder=false)")

    @Deprecated

    private void __metadata() {}





    //@formatter:on

    // End of generated code



}

core/java/android/content/pm/parsing/ParsingPackage.java

+2 −0
Original line number Diff line number Diff line
@@ -236,6 +236,8 @@ public interface ParsingPackage extends ParsingPackageRead { 


    ParsingPackage setEnabled(boolean enabled);



    ParsingPackage setGwpAsanEnabled(Boolean enableGwpAsan);



    ParsingPackage setCrossProfile(boolean crossProfile);



    ParsingPackage setFullBackupContent(int fullBackupContent);

core/java/android/content/pm/parsing/ParsingPackageImpl.java

+20 −1
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ import android.content.pm.FeatureGroupInfo; 
import android.content.pm.FeatureInfo;

import android.content.pm.PackageInfo;

import android.content.pm.PackageParser;

import android.content.pm.ProcessInfo;

import android.content.pm.parsing.component.ParsedActivity;

import android.content.pm.parsing.component.ParsedComponent;

import android.content.pm.parsing.component.ParsedFeature;
@@ -406,6 +407,10 @@ public class ParsingPackageImpl implements ParsingPackage, Parcelable { 
    private boolean allowNativeHeapPointerTagging;

    private boolean preserveLegacyExternalStorage;



    @Nullable

    @DataClass.ParcelWith(ForBoolean.class)

    protected Boolean enableGwpAsan = null;



    // TODO(chiuwinson): Non-null

    @Nullable

    private ArraySet<String> mimeGroups;
@@ -904,7 +909,7 @@ public class ParsingPackageImpl implements ParsingPackage, Parcelable { 
        appInfo.volumeUuid = volumeUuid;

        appInfo.zygotePreloadName = zygotePreloadName;

        appInfo.crossProfile = isCrossProfile();



        appInfo.setGwpAsanEnabled(enableGwpAsan);

        appInfo.setBaseCodePath(baseCodePath);

        appInfo.setBaseResourcePath(baseCodePath);

        appInfo.setCodePath(codePath);
@@ -1086,6 +1091,7 @@ public class ParsingPackageImpl implements ParsingPackage, Parcelable { 
        dest.writeBoolean(this.allowNativeHeapPointerTagging);

        dest.writeBoolean(this.preserveLegacyExternalStorage);

        dest.writeArraySet(this.mimeGroups);

        sForBoolean.parcel(this.enableGwpAsan, dest, flags);

    }



    public ParsingPackageImpl(Parcel in) {
@@ -1243,6 +1249,7 @@ public class ParsingPackageImpl implements ParsingPackage, Parcelable { 
        this.allowNativeHeapPointerTagging = in.readBoolean();

        this.preserveLegacyExternalStorage = in.readBoolean();

        this.mimeGroups = (ArraySet<String>) in.readArraySet(boot);

        this.enableGwpAsan = sForBoolean.unparcel(in);

    }



    public static final Parcelable.Creator<ParsingPackageImpl> CREATOR =
@@ -1964,6 +1971,12 @@ public class ParsingPackageImpl implements ParsingPackage, Parcelable { 
        return directBootAware;

    }



    @Override

    @Nullable

    public Boolean isGwpAsanEnabled() {

        return enableGwpAsan;

    }



    @Override

    public boolean isPartiallyDirectBootAware() {

        return partiallyDirectBootAware;
@@ -2419,6 +2432,12 @@ public class ParsingPackageImpl implements ParsingPackage, Parcelable { 
        return this;

    }



    @Override

    public ParsingPackageImpl setGwpAsanEnabled(@Nullable Boolean value) {

        enableGwpAsan = value;

        return this;

    }



    @Override

    public ParsingPackageImpl setPartiallyDirectBootAware(boolean value) {

        partiallyDirectBootAware = value;