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Commit 48feba95 authored by Sam Mortimer's avatar Sam Mortimer Committed by Mohammed Althaf T
Browse files

Reset all package signatures on boot 

Can be used to make a special build that resets all
package signatures without wiping any data.

Change-Id: Iff65f2ed3c9d0f80be7221ff90803eda4732cac0
parent b88bb5ca

services/core/java/com/android/server/pm/InstallPackageHelper.java

+8 −1
Original line number Diff line number Diff line
@@ -1408,7 +1408,14 @@ final class InstallPackageHelper { 
                final KeySetManagerService ksms = mPm.mSettings.getKeySetManagerService();

                final SharedUserSetting signatureCheckSus = mPm.mSettings.getSharedUserSettingLPr(

                        signatureCheckPs);

                if (ksms.shouldCheckUpgradeKeySetLocked(signatureCheckPs, signatureCheckSus,

                if (mPm.mResetSignatures) {

                    Slog.d(TAG, "resetting signatures on package " + parsedPackage.getPackageName());

                    signatureCheckPs.setSigningDetails(parsedPackage.getSigningDetails());

                    if (signatureCheckSus != null) {

                        signatureCheckSus.signatures.mSigningDetails =

                                parsedPackage.getSigningDetails();

                    }

                } else if (ksms.shouldCheckUpgradeKeySetLocked(signatureCheckPs, signatureCheckSus,

                        scanFlags)) {

                    if (!ksms.checkUpgradeKeySetLocked(signatureCheckPs, parsedPackage)) {

                        throw new PrepareFailure(INSTALL_FAILED_UPDATE_INCOMPATIBLE, "Package "

services/core/java/com/android/server/pm/PackageManagerService.java

+7 −0
Original line number Diff line number Diff line
@@ -370,6 +370,8 @@ public class PackageManagerService implements PackageSender, TestUtilityService 


    static final boolean HIDE_EPHEMERAL_APIS = false;



    private static final boolean RESET_ALL_PACKAGE_SIGNATURES_ON_BOOT = true;



    static final String PRECOMPILE_LAYOUTS = "pm.precompile_layouts";



    private static final int RADIO_UID = Process.PHONE_UID;
@@ -719,6 +721,7 @@ public class PackageManagerService implements PackageSender, TestUtilityService 
    final ProtectedPackages mProtectedPackages;



    private boolean mFirstBoot;

    boolean mResetSignatures;



    final boolean mIsEngBuild;

    private final boolean mIsUserDebugBuild;
@@ -2320,6 +2323,8 @@ public class PackageManagerService implements PackageSender, TestUtilityService 
            mShouldStopSystemPackagesByDefault = mContext.getResources()

                    .getBoolean(R.bool.config_stopSystemPackagesByDefault);



            mResetSignatures = RESET_ALL_PACKAGE_SIGNATURES_ON_BOOT;



            final int[] userIds = mUserManager.getUserIds();

            PackageParser2 packageParser = mInjector.getScanningCachingPackageParser();

            mOverlayConfig = mInitAppsHelper.initSystemApps(packageParser, packageSettings, userIds,
@@ -2327,6 +2332,8 @@ public class PackageManagerService implements PackageSender, TestUtilityService 
            mInitAppsHelper.initNonSystemApps(packageParser, userIds, startTime);

            packageParser.close();



            mResetSignatures = false;



            mRequiredVerifierPackages = getRequiredButNotReallyRequiredVerifiersLPr(computer);

            mRequiredInstallerPackage = getRequiredInstallerLPr(computer);

            mRequiredUninstallerPackage = getRequiredUninstallerLPr(computer);