Merge "Allow changing signing cert for system apps that use shared users" (cb39c1a9) · Commits · e / os / android_frameworks_base

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

+18 −6

Original line number	Diff line number	Diff line
		@@ -11026,6 +11026,12 @@ public class PackageManagerService extends IPackageManager.Stub
		// We just determined the app is signed correctly, so bring
		// over the latest parsed certs.
		pkgSetting.signatures.mSignatures = pkg.mSignatures;

		if (signatureCheckPs.sharedUser != null) {
		if (signatureCheckPs.sharedUser.signaturesChanged == null) {
		signatureCheckPs.sharedUser.signaturesChanged = Boolean.FALSE;
		}
		}
		} catch (PackageManagerException e) {
		if ((policyFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
		throw e;
		@@ -11033,19 +11039,25 @@ public class PackageManagerService extends IPackageManager.Stub
		// The signature has changed, but this package is in the system
		// image... let's recover!
		pkgSetting.signatures.mSignatures = pkg.mSignatures;
		// However... if this package is part of a shared user, but it
		// doesn't match the signature of the shared user, let's fail.
		// What this means is that you can't change the signatures
		// associated with an overall shared user, which doesn't seem all
		// that unreasonable.

		// If the system app is part of a shared user we allow that shared user to
		// change signatures as well as part of an OTA. We still need to verify that the
		// signatures are consistent within the shared user for a given boot, so only
		// allow updating the signatures on the first package scanned for the shared
		// user (i.e. if the signaturesChanged state hasn't been initialized yet in
		// SharedUserSetting).
		if (signatureCheckPs.sharedUser != null) {
		if (compareSignatures(signatureCheckPs.sharedUser.signatures.mSignatures,
		if (signatureCheckPs.sharedUser.signaturesChanged != null &&
		compareSignatures(signatureCheckPs.sharedUser.signatures.mSignatures,
		pkg.mSignatures) != PackageManager.SIGNATURE_MATCH) {
		throw new PackageManagerException(
		INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES,
		"Signature mismatch for shared user: "
		+ pkgSetting.sharedUser);
		}

		signatureCheckPs.sharedUser.signatures.mSignatures = pkg.mSignatures;
		signatureCheckPs.sharedUser.signaturesChanged = Boolean.TRUE;
		}
		// File a report about this.
		String msg = "System package " + pkg.packageName

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

+1 −0

Original line number	Diff line number	Diff line
		@@ -33,6 +33,7 @@ final class SharedUserSetting extends SettingBase {
		final ArraySet<PackageSetting> packages = new ArraySet<PackageSetting>();

		final PackageSignatures signatures = new PackageSignatures();
		Boolean signaturesChanged;

		SharedUserSetting(String _name, int _pkgFlags, int _pkgPrivateFlags) {
		super(_pkgFlags, _pkgPrivateFlags);