Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 7f744d48 authored by Hai Zhang's avatar Hai Zhang
Browse files

Revert "Revert "Move PermissionsState into PermissionManagerService.""

This reverts commit 762bcd67.

Reason for revert: Fixed bug about shared user permission revocation
upon uninstall, and reading runtime permission state for users.

Bug: 158736025
Test: atest CtsAppSecurityHostTestCases
Change-Id: I71dec3d0492b0413c945fd0eb80f6186448ed528
parent 1633cc69
Loading
Loading
Loading
Loading
+49 −34
Original line number Diff line number Diff line
@@ -367,7 +367,6 @@ import com.android.server.pm.parsing.pkg.ParsedPackage;
import com.android.server.pm.permission.BasePermission;
import com.android.server.pm.permission.PermissionManagerService;
import com.android.server.pm.permission.PermissionManagerServiceInternal;
import com.android.server.pm.permission.PermissionsState;
import com.android.server.policy.PermissionPolicyInternal;
import com.android.server.rollback.RollbackManagerInternal;
import com.android.server.security.VerityUtils;
@@ -1818,7 +1817,7 @@ public class PackageManagerService extends IPackageManager.Stub
                    synchronized (mLock) {
                        removeMessages(WRITE_SETTINGS);
                        removeMessages(WRITE_PACKAGE_RESTRICTIONS);
                        mSettings.writeLPr();
                        writeSettingsLPrTEMP();
                        mDirtyUsers.clear();
                    }
                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
@@ -1838,6 +1837,7 @@ public class PackageManagerService extends IPackageManager.Stub
                    Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
                    synchronized (mLock) {
                        removeMessages(WRITE_PACKAGE_LIST);
                        mPermissionManager.writePermissionsStateToPackageSettingsTEMP();
                        mSettings.writePackageListLPr(msg.arg1);
                    }
                    Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
@@ -2518,7 +2518,7 @@ public class PackageManagerService extends IPackageManager.Stub
                }
                mSettings.onVolumeForgotten(fsUuid);
                mSettings.writeLPr();
                writeSettingsLPrTEMP();
            }
        }
    };
@@ -3442,6 +3442,7 @@ public class PackageManagerService extends IPackageManager.Stub
                    + ((SystemClock.uptimeMillis()-startTime)/1000f)
                    + " seconds");
            mPermissionManager.readPermissionsStateFromPackageSettingsTEMP();
            // If the platform SDK has changed since the last time we booted,
            // we need to re-grant app permission to catch any new ones that
            // appear.  This is really a hack, and means that apps can in some
@@ -3561,7 +3562,7 @@ public class PackageManagerService extends IPackageManager.Stub
            // can downgrade to reader
            t.traceBegin("write settings");
            mSettings.writeLPr();
            writeSettingsLPrTEMP();
            t.traceEnd();
            EventLog.writeEvent(EventLogTags.BOOT_PROGRESS_PMS_READY,
                    SystemClock.uptimeMillis());
@@ -3765,7 +3766,7 @@ public class PackageManagerService extends IPackageManager.Stub
                        Slog.e(TAG, "updateAllSharedLibrariesLPw failed: ", e);
                    }
                    mPermissionManager.updatePermissions(pkg.getPackageName(), pkg);
                    mSettings.writeLPr();
                    writeSettingsLPrTEMP();
                }
            } catch (PackageManagerException e) {
                // Whoops! Something went very wrong; roll back to the stub and disable the package
@@ -3776,9 +3777,8 @@ public class PackageManagerService extends IPackageManager.Stub
                        // If we don't, installing the system package fails during scan
                        enableSystemPackageLPw(stubPkg);
                    }
                    installPackageFromSystemLIF(stubPkg.getCodePath(),
                            null /*allUserHandles*/, null /*origUserHandles*/,
                            null /*origPermissionsState*/, true /*writeSettings*/);
                    installPackageFromSystemLIF(stubPkg.getCodePath(), null /*allUserHandles*/,
                            null /*origUserHandles*/, true /*writeSettings*/);
                } catch (PackageManagerException pme) {
                    // Serious WTF; we have to be able to install the stub
                    Slog.wtf(TAG, "Failed to restore system package:" + stubPkg.getPackageName(),
@@ -3792,7 +3792,7 @@ public class PackageManagerService extends IPackageManager.Stub
                            stubPs.setEnabled(COMPONENT_ENABLED_STATE_DISABLED,
                                    UserHandle.USER_SYSTEM, "android");
                        }
                        mSettings.writeLPr();
                        writeSettingsLPrTEMP();
                    }
                }
                return false;
@@ -16280,7 +16280,7 @@ public class PackageManagerService extends IPackageManager.Stub
            res.setReturnCode(PackageManager.INSTALL_SUCCEEDED);
            //to update install status
            Trace.traceBegin(TRACE_TAG_PACKAGE_MANAGER, "writeSettings");
            mSettings.writeLPr();
            writeSettingsLPrTEMP();
            Trace.traceEnd(TRACE_TAG_PACKAGE_MANAGER);
        }
@@ -18877,6 +18877,10 @@ public class PackageManagerService extends IPackageManager.Stub
                    if (outInfo != null) {
                        outInfo.removedAppId = removedAppId;
                    }
                    if ((deletedPs.sharedUser == null || deletedPs.sharedUser.packages.size() == 0)
                            && !isUpdatedSystemApp(deletedPs)) {
                        mPermissionManager.removePermissionsStateTEMP(removedAppId);
                    }
                    mPermissionManager.updatePermissions(deletedPs.name, null);
                    if (deletedPs.sharedUser != null) {
                        // Remove permissions associated with package. Since runtime
@@ -18886,10 +18890,10 @@ public class PackageManagerService extends IPackageManager.Stub
                        // package is successful and this causes a change in gids.
                        boolean shouldKill = false;
                        for (int userId : UserManagerService.getInstance().getUserIds()) {
                            final int userIdToKill = mSettings.updateSharedUserPermsLPw(deletedPs,
                            final int userIdToKill = mPermissionManager
                                    .revokeSharedUserPermissionsForDeletedPackageTEMP(deletedPs,
                                            userId);
                            shouldKill |= userIdToKill == UserHandle.USER_ALL
                                    || userIdToKill >= UserHandle.USER_SYSTEM;
                            shouldKill |= userIdToKill != UserHandle.USER_NULL;
                        }
                        // If gids changed, kill all affected packages.
                        if (shouldKill) {
@@ -18933,7 +18937,7 @@ public class PackageManagerService extends IPackageManager.Stub
            // can downgrade to reader
            if (writeSettings) {
                // Save settings now
                mSettings.writeLPr();
                writeSettingsLPrTEMP();
            }
            if (installedStateChanged) {
                mSettings.writeKernelMappingLPr(deletedPs);
@@ -19020,8 +19024,7 @@ public class PackageManagerService extends IPackageManager.Stub
        if (DEBUG_REMOVE) Slog.d(TAG, "Re-installing system package: " + disabledPs);
        try {
            installPackageFromSystemLIF(disabledPs.getCodePathString(), allUserHandles,
                    outInfo == null ? null : outInfo.origUsers, deletedPs.getPermissionsState(),
                    writeSettings);
                    outInfo == null ? null : outInfo.origUsers, writeSettings);
        } catch (PackageManagerException e) {
            Slog.w(TAG, "Failed to restore system package:" + deletedPkg.getPackageName() + ": "
                    + e.getMessage());
@@ -19052,8 +19055,7 @@ public class PackageManagerService extends IPackageManager.Stub
     * Installs a package that's already on the system partition.
     */
    private AndroidPackage installPackageFromSystemLIF(@NonNull String codePathString,
            @Nullable int[] allUserHandles, @Nullable int[] origUserHandles,
            @Nullable PermissionsState origPermissionState, boolean writeSettings)
            @Nullable int[] allUserHandles, @Nullable int[] origUserHandles, boolean writeSettings)
            throws PackageManagerException {
        final File codePath = new File(codePathString);
        @ParseFlags int parseFlags =
@@ -19091,12 +19093,8 @@ public class PackageManagerService extends IPackageManager.Stub
        synchronized (mLock) {
            PackageSetting ps = mSettings.mPackages.get(pkg.getPackageName());
            // Propagate the permissions state as we do not want to drop on the floor
            // runtime permissions. The update permissions method below will take
            // care of removing obsolete permissions and grant install permissions.
            if (origPermissionState != null) {
                ps.getPermissionsState().copyFrom(origPermissionState);
            }
            // The update permissions method below will take care of removing obsolete permissions
            // and granting install permissions.
            mPermissionManager.updatePermissions(pkg.getPackageName(), pkg);
            final boolean applyUserRestrictions
@@ -19130,7 +19128,7 @@ public class PackageManagerService extends IPackageManager.Stub
            }
            // can downgrade to reader here
            if (writeSettings) {
                mSettings.writeLPr();
                writeSettingsLPrTEMP();
            }
        }
        return pkg;
@@ -19204,7 +19202,7 @@ public class PackageManagerService extends IPackageManager.Stub
            } else {
                ps.pkgPrivateFlags &= ~ApplicationInfo.PRIVATE_FLAG_REQUIRED_FOR_SYSTEM_USER;
            }
            mSettings.writeLPr();
            writeSettingsLPrTEMP();
        }
        return true;
    }
@@ -20396,7 +20394,7 @@ public class PackageManagerService extends IPackageManager.Stub
                    (parser1, userId1) -> {
                        synchronized (mLock) {
                            mSettings.readAllDomainVerificationsLPr(parser1, userId1);
                            mSettings.writeLPr();
                            writeSettingsLPrTEMP();
                        }
                    });
        } catch (Exception e) {
@@ -21747,6 +21745,8 @@ public class PackageManagerService extends IPackageManager.Stub
    protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
        if (!DumpUtils.checkDumpAndUsageStatsPermission(mContext, TAG, pw)) return;
        mPermissionManager.writePermissionsStateToPackageSettingsTEMP();
        DumpState dumpState = new DumpState();
        boolean fullPreferred = false;
        boolean checkin = false;
@@ -21942,7 +21942,7 @@ public class PackageManagerService extends IPackageManager.Stub
                dumpState.setDump(DumpState.DUMP_SERVICE_PERMISSIONS);
            } else if ("write".equals(cmd)) {
                synchronized (mLock) {
                    mSettings.writeLPr();
                    writeSettingsLPrTEMP();
                    pw.println("Settings written.");
                    return;
                }
@@ -22660,7 +22660,7 @@ public class PackageManagerService extends IPackageManager.Stub
            // Yay, everything is now upgraded
            ver.forceCurrent();
            mSettings.writeLPr();
            writeSettingsLPrTEMP();
        }
        for (PackageFreezer freezer : freezers) {
@@ -22710,7 +22710,7 @@ public class PackageManagerService extends IPackageManager.Stub
                    AttributeCache.instance().removePackage(ps.name);
                }
                mSettings.writeLPr();
                writeSettingsLPrTEMP();
            }
        }
@@ -23623,6 +23623,8 @@ public class PackageManagerService extends IPackageManager.Stub
        synchronized (mLock) {
            mDirtyUsers.remove(userId);
            mUserNeedsBadging.delete(userId);
            mPermissionManager.onUserRemoved(userId);
            mPermissionManager.writePermissionsStateToPackageSettingsTEMP();
            mSettings.removeUserLPw(userId);
            mPendingBroadcasts.remove(userId);
            mInstantAppRegistry.onUserRemovedLPw(userId);
@@ -23723,7 +23725,9 @@ public class PackageManagerService extends IPackageManager.Stub
    boolean readPermissionStateForUser(@UserIdInt int userId) {
        synchronized (mPackages) {
            mPermissionManager.writePermissionsStateToPackageSettingsTEMP();
            mSettings.readPermissionStateForUserSyncLPr(userId);
            mPermissionManager.readPermissionsStateFromPackageSettingsTEMP();
            return mPmInternal.isPermissionUpgradeNeeded(userId);
        }
    }
@@ -25179,7 +25183,7 @@ public class PackageManagerService extends IPackageManager.Stub
                if (async) {
                    scheduleWriteSettingsLocked();
                } else {
                    mSettings.writeLPr();
                    writeSettingsLPrTEMP();
                }
            }
        }
@@ -25226,7 +25230,7 @@ public class PackageManagerService extends IPackageManager.Stub
                    return;
                }
                mSettings.mReadExternalStorageEnforced = enforced ? Boolean.TRUE : Boolean.FALSE;
                mSettings.writeLPr();
                writeSettingsLPrTEMP();
            }
        }
@@ -25740,6 +25744,17 @@ public class PackageManagerService extends IPackageManager.Stub
    public List<String> getMimeGroup(String packageName, String mimeGroup) {
        return mSettings.mPackages.get(packageName).getMimeGroup(mimeGroup);
    }
    /**
     * Temporary method that wraps mSettings.writeLPr() and calls
     * mPermissionManager.writePermissionsStateToPackageSettingsTEMP() beforehand.
     *
     * TODO(zhanghai): This should be removed once we finish migration of permission storage.
     */
    private void writeSettingsLPrTEMP() {
        mPermissionManager.writePermissionsStateToPackageSettingsTEMP();
        mSettings.writeLPr();
    }
}
interface PackageSender {
+0 −16
Original line number Diff line number Diff line
@@ -34,7 +34,6 @@ import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageInfoLite;
import android.content.pm.PackageManager;
import android.content.pm.PackageManagerInternal;
import android.content.pm.PackageParser;
import android.content.pm.PackageParser.PackageParserException;
import android.content.pm.ResolveInfo;
@@ -68,7 +67,6 @@ import com.android.server.EventLogTags;
import com.android.server.pm.dex.DexManager;
import com.android.server.pm.dex.PackageDexUsage;
import com.android.server.pm.parsing.pkg.AndroidPackage;
import com.android.server.pm.permission.PermissionsState;

import dalvik.system.VMRuntime;

@@ -967,20 +965,6 @@ public class PackageManagerServiceUtils {
        }
    }

    /**
     * Returns the {@link PermissionsState} for the given package. If the {@link PermissionsState}
     * could not be found, {@code null} will be returned.
     */
    public static PermissionsState getPermissionsState(
            PackageManagerInternal packageManagerInternal, AndroidPackage pkg) {
        final PackageSetting packageSetting = packageManagerInternal.getPackageSetting(
                pkg.getPackageName());
        if (packageSetting == null) {
            return null;
        }
        return packageSetting.getPermissionsState();
    }

    /**
     * Recursively create target directory
     */
+0 −108
Original line number Diff line number Diff line
@@ -955,93 +955,6 @@ public final class Settings {
        }
    }

    /*
     * Update the shared user setting when a package with a shared user id is removed. The gids
     * associated with each permission of the deleted package are removed from the shared user'
     * gid list only if its not in use by other permissions of packages in the shared user setting.
     *
     * @return the affected user id
     */
    @UserIdInt
    int updateSharedUserPermsLPw(PackageSetting deletedPs, int userId) {
        if ((deletedPs == null) || (deletedPs.pkg == null)) {
            Slog.i(PackageManagerService.TAG,
                    "Trying to update info for null package. Just ignoring");
            return UserHandle.USER_NULL;
        }

        // No sharedUserId
        if (deletedPs.sharedUser == null) {
            return UserHandle.USER_NULL;
        }

        SharedUserSetting sus = deletedPs.sharedUser;

        int affectedUserId = UserHandle.USER_NULL;
        // Update permissions
        for (String eachPerm : deletedPs.pkg.getRequestedPermissions()) {
            BasePermission bp = mPermissions.getPermission(eachPerm);
            if (bp == null) {
                continue;
            }

            // Check if another package in the shared user needs the permission.
            boolean used = false;
            for (PackageSetting pkg : sus.packages) {
                if (pkg.pkg != null
                        && !pkg.pkg.getPackageName().equals(deletedPs.pkg.getPackageName())
                        && pkg.pkg.getRequestedPermissions().contains(eachPerm)) {
                    used = true;
                    break;
                }
            }
            if (used) {
                continue;
            }

            PermissionsState permissionsState = sus.getPermissionsState();
            PackageSetting disabledPs = getDisabledSystemPkgLPr(deletedPs.pkg.getPackageName());

            // If the package is shadowing is a disabled system package,
            // do not drop permissions that the shadowed package requests.
            if (disabledPs != null) {
                boolean reqByDisabledSysPkg = false;
                for (String permission : disabledPs.pkg.getRequestedPermissions()) {
                    if (permission.equals(eachPerm)) {
                        reqByDisabledSysPkg = true;
                        break;
                    }
                }
                if (reqByDisabledSysPkg) {
                    continue;
                }
            }

            // Try to revoke as an install permission which is for all users.
            // The package is gone - no need to keep flags for applying policy.
            permissionsState.updatePermissionFlags(bp, userId,
                    PackageManager.MASK_PERMISSION_FLAGS_ALL, 0);

            if (permissionsState.revokeInstallPermission(bp) ==
                    PermissionsState.PERMISSION_OPERATION_SUCCESS_GIDS_CHANGED) {
                affectedUserId = UserHandle.USER_ALL;
            }

            // Try to revoke as an install permission which is per user.
            if (permissionsState.revokeRuntimePermission(bp, userId) ==
                    PermissionsState.PERMISSION_OPERATION_SUCCESS_GIDS_CHANGED) {
                if (affectedUserId == UserHandle.USER_NULL) {
                    affectedUserId = userId;
                } else if (affectedUserId != userId) {
                    // Multiple users affected.
                    affectedUserId = UserHandle.USER_ALL;
                }
            }
        }

        return affectedUserId;
    }

    int removePackageLPw(String name) {
        final PackageSetting p = mPackages.get(name);
        if (p != null) {
@@ -5533,32 +5446,11 @@ public final class Settings {
            // Make sure we do not
            mHandler.removeMessages(userId);

            for (SettingBase sb : mPackages.values()) {
                revokeRuntimePermissionsAndClearFlags(sb, userId);
            }

            for (SettingBase sb : mSharedUsers.values()) {
                revokeRuntimePermissionsAndClearFlags(sb, userId);
            }

            mPermissionUpgradeNeeded.delete(userId);
            mVersions.delete(userId);
            mFingerprints.remove(userId);
        }

        private void revokeRuntimePermissionsAndClearFlags(SettingBase sb, int userId) {
            PermissionsState permissionsState = sb.getPermissionsState();
            for (PermissionState permissionState
                    : permissionsState.getRuntimePermissionStates(userId)) {
                BasePermission bp = mPermissions.getPermission(permissionState.getName());
                if (bp != null) {
                    permissionsState.revokeRuntimePermission(bp, userId);
                    permissionsState.updatePermissionFlags(bp, userId,
                            PackageManager.MASK_PERMISSION_FLAGS_ALL, 0);
                }
            }
        }

        public void deleteUserRuntimePermissionsFile(int userId) {
            mPersistence.deleteForUser(UserHandle.of(userId));
        }
+1 −3
Original line number Diff line number Diff line
@@ -38,7 +38,6 @@ import android.util.Slog;

import com.android.server.pm.DumpState;
import com.android.server.pm.PackageManagerService;
import com.android.server.pm.PackageSetting;
import com.android.server.pm.PackageSettingBase;
import com.android.server.pm.parsing.PackageInfoUtils;
import com.android.server.pm.parsing.pkg.AndroidPackage;
@@ -420,8 +419,7 @@ public final class BasePermission {
    }

    public void enforceDeclaredUsedAndRuntimeOrDevelopment(AndroidPackage pkg,
            PackageSetting pkgSetting) {
        final PermissionsState permsState = pkgSetting.getPermissionsState();
            PermissionsState permsState) {
        int index = pkg.getRequestedPermissions().indexOf(name);
        if (!permsState.hasRequestedPermission(name) && index == -1) {
            throw new SecurityException("Package " + pkg.getPackageName()
+273 −89

File changed.

Preview size limit exceeded, changes collapsed.

Loading