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Commit d11b16f7 authored by Xiangyu/Malcolm Chen's avatar Xiangyu/Malcolm Chen Committed by Android (Google) Code Review
Browse files

Merge "Don't allow reading IMSI of one active sub if only has carrier... 

Merge "Don't allow reading IMSI of one active sub if only has carrier privilege on the other." into qt-qpr1-dev
parents 31121830 4bff4282

telephony/java/android/telephony/TelephonyManager.java

+10 −9
Original line number Diff line number Diff line
@@ -1589,8 +1589,8 @@ public class TelephonyManager { 
     *

     * <p>Requires Permission: READ_PRIVILEGED_PHONE_STATE, for the calling app to be the device or

     * profile owner and have the READ_PHONE_STATE permission, or that the calling app has carrier

     * privileges (see {@link #hasCarrierPrivileges}). The profile owner is an app that owns a

     * managed profile on the device; for more details see <a

     * privileges (see {@link #hasCarrierPrivileges}) on any active subscription. The profile owner

     * is an app that owns a managed profile on the device; for more details see <a

     * href="https://developer.android.com/work/managed-profiles">Work profiles</a>. Profile owner

     * access is deprecated and will be removed in a future release.

     *
@@ -1630,8 +1630,8 @@ public class TelephonyManager { 
     *

     * <p>Requires Permission: READ_PRIVILEGED_PHONE_STATE, for the calling app to be the device or

     * profile owner and have the READ_PHONE_STATE permission, or that the calling app has carrier

     * privileges (see {@link #hasCarrierPrivileges}). The profile owner is an app that owns a

     * managed profile on the device; for more details see <a

     * privileges (see {@link #hasCarrierPrivileges}) on any active subscription. The profile owner

     * is an app that owns a managed profile on the device; for more details see <a

     * href="https://developer.android.com/work/managed-profiles">Work profiles</a>. Profile owner

     * access is deprecated and will be removed in a future release.

     *
@@ -1690,7 +1690,8 @@ public class TelephonyManager { 
     *     <li>The caller holds the READ_PRIVILEGED_PHONE_STATE permission.</li>

     *     <li>If the caller is the device or profile owner, the caller holds the

     *     {@link Manifest.permission#READ_PHONE_STATE} permission.</li>

     *     <li>The caller has carrier privileges (see {@link #hasCarrierPrivileges()}.</li>

     *     <li>The caller has carrier privileges (see {@link #hasCarrierPrivileges()} on any

     *     active subscription.</li>

     *     <li>The caller is the default SMS app for the device.</li>

     * </ul>

     * <p>The profile owner is an app that owns a managed profile on the device; for more details
@@ -1759,8 +1760,8 @@ public class TelephonyManager { 
     *

     * <p>Requires Permission: READ_PRIVILEGED_PHONE_STATE, for the calling app to be the device or

     * profile owner and have the READ_PHONE_STATE permission, or that the calling app has carrier

     * privileges (see {@link #hasCarrierPrivileges}). The profile owner is an app that owns a

     * managed profile on the device; for more details see <a

     * privileges (see {@link #hasCarrierPrivileges}) on any active subscription. The profile owner

     * is an app that owns a managed profile on the device; for more details see <a

     * href="https://developer.android.com/work/managed-profiles">Work profiles</a>. Profile owner

     * access is deprecated and will be removed in a future release.

     *
@@ -1786,8 +1787,8 @@ public class TelephonyManager { 
     *

     * <p>Requires Permission: READ_PRIVILEGED_PHONE_STATE, for the calling app to be the device or

     * profile owner and have the READ_PHONE_STATE permission, or that the calling app has carrier

     * privileges (see {@link #hasCarrierPrivileges}). The profile owner is an app that owns a

     * managed profile on the device; for more details see <a

     * privileges (see {@link #hasCarrierPrivileges}) on any active subscription. The profile owner

     * is an app that owns a managed profile on the device; for more details see <a

     * href="https://developer.android.com/work/managed-profiles">Work profiles</a>. Profile owner

     * access is deprecated and will be removed in a future release.

     *

telephony/java/com/android/internal/telephony/TelephonyPermissions.java

+40 −20
Original line number Diff line number Diff line
@@ -237,9 +237,10 @@ public final class TelephonyPermissions { 
     * <ul>

     *   <li>return true: if the caller has the READ_PRIVILEGED_PHONE_STATE permission, the calling

     *       package passes a DevicePolicyManager Device Owner / Profile Owner device identifier

     *       access check, or the calling package has carrier privileges.

     *       access check, or the calling package has carrier privileges on any active subscription.

    *   <li>throw SecurityException: if the caller does not meet any of the requirements and is

     *       targeting Q or is targeting pre-Q and does not have the READ_PHONE_STATE permission.

     *       targeting Q or is targeting pre-Q and does not have the READ_PHONE_STATE permission

     *       or carrier privileges of any active subscription.

     *   <li>return false: if the caller is targeting pre-Q and does have the READ_PHONE_STATE

     *       permission. In this case the caller would expect to have access to the device

     *       identifiers so false is returned instead of throwing a SecurityException to indicate
@@ -259,10 +260,10 @@ public final class TelephonyPermissions { 
     * <ul>

     *   <li>return true: if the caller has the READ_PRIVILEGED_PHONE_STATE permission, the calling

     *       package passes a DevicePolicyManager Device Owner / Profile Owner device identifier

     *       access check, or the calling package has carrier privileges.

     *       access check, or the calling package has carrier privileges on any active subscription.

     *   <li>throw SecurityException: if the caller does not meet any of the requirements and is

     *       targeting Q or is targeting pre-Q and does not have the READ_PHONE_STATE permission

     *       or carrier privileges.

     *       or carrier privileges of any active subscription.

     *   <li>return false: if the caller is targeting pre-Q and does have the READ_PHONE_STATE

     *       permission or carrier privileges. In this case the caller would expect to have access

     *       to the device identifiers so false is returned instead of throwing a SecurityException
@@ -271,8 +272,8 @@ public final class TelephonyPermissions { 
     */

    public static boolean checkCallingOrSelfReadDeviceIdentifiers(Context context, int subId,

            String callingPackage, String message) {

        return checkReadDeviceIdentifiers(context, TELEPHONY_SUPPLIER, subId,

                Binder.getCallingPid(), Binder.getCallingUid(), callingPackage, message);

        return checkPrivilegedReadPermissionOrCarrierPrivilegePermission(

                context, subId, callingPackage, message, true);

    }



    /**
@@ -282,7 +283,7 @@ public final class TelephonyPermissions { 
     * <ul>

     *   <li>return true: if the caller has the READ_PRIVILEGED_PHONE_STATE permission, the calling

     *       package passes a DevicePolicyManager Device Owner / Profile Owner device identifier

     *       access check, or the calling package has carrier privileges.

     *       access check, or the calling package has carrier privileges on specified subscription.

     *   <li>throw SecurityException: if the caller does not meet any of the requirements and is

     *       targeting Q or is targeting pre-Q and does not have the READ_PHONE_STATE permission.

     *   <li>return false: if the caller is targeting pre-Q and does have the READ_PHONE_STATE
@@ -293,21 +294,33 @@ public final class TelephonyPermissions { 
     */

    public static boolean checkCallingOrSelfReadSubscriberIdentifiers(Context context, int subId,

            String callingPackage, String message) {

        return checkReadDeviceIdentifiers(context, TELEPHONY_SUPPLIER, subId,

                Binder.getCallingPid(), Binder.getCallingUid(), callingPackage, message);

        return checkPrivilegedReadPermissionOrCarrierPrivilegePermission(

                context, subId, callingPackage, message, false);

    }



    /**

     * Checks whether the app with the given pid/uid can read device identifiers.

     *

     * @returns true if the caller has the READ_PRIVILEGED_PHONE_STATE permission or the calling

     * package passes a DevicePolicyManager Device Owner / Profile Owner device identifier access

     * check.

     * <p>This method behaves in one of the following ways:

     * <ul>

     *   <li>return true: if the caller has the READ_PRIVILEGED_PHONE_STATE permission, the calling

     *       package passes a DevicePolicyManager Device Owner / Profile Owner device identifier

     *       access check; or the calling package has carrier privileges on the specified

     *       subscription; or allowCarrierPrivilegeOnAnySub is true and has carrier privilege on

     *       any active subscription.

     *   <li>throw SecurityException: if the caller does not meet any of the requirements and is

     *       targeting Q or is targeting pre-Q and does not have the READ_PHONE_STATE permission.

     *   <li>return false: if the caller is targeting pre-Q and does have the READ_PHONE_STATE

     *       permission. In this case the caller would expect to have access to the device

     *       identifiers so false is returned instead of throwing a SecurityException to indicate

     *       the calling function should return dummy data.

     * </ul>

     */

    @VisibleForTesting

    public static boolean checkReadDeviceIdentifiers(Context context,

            Supplier<ITelephony> telephonySupplier, int subId, int pid, int uid,

            String callingPackage, String message) {

    private static boolean checkPrivilegedReadPermissionOrCarrierPrivilegePermission(

            Context context, int subId, String callingPackage, String message,

            boolean allowCarrierPrivilegeOnAnySub) {

        int uid = Binder.getCallingUid();

        int pid = Binder.getCallingPid();

        // Allow system and root access to the device identifiers.

        final int appId = UserHandle.getAppId(uid);

        if (appId == Process.SYSTEM_UID || appId == Process.ROOT_UID) {
@@ -318,10 +331,17 @@ public final class TelephonyPermissions { 
                uid) == PackageManager.PERMISSION_GRANTED) {

            return true;

        }

        // If the calling package has carrier privileges for any subscription then allow access.

        if (checkCarrierPrivilegeForAnySubId(context, telephonySupplier, uid)) {



        // If the calling package has carrier privileges for specified sub, then allow access.

        if (checkCarrierPrivilegeForSubId(subId)) return true;



        // If the calling package has carrier privileges for any subscription

        // and allowCarrierPrivilegeOnAnySub is set true, then allow access.

        if (allowCarrierPrivilegeOnAnySub && checkCarrierPrivilegeForAnySubId(

                context, TELEPHONY_SUPPLIER, uid)) {

            return true;

        }



        // if the calling package is not null then perform the DevicePolicyManager device /

        // profile owner and Appop checks.

        if (callingPackage != null) {