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Commit a9533225 authored by Michael Groover's avatar Michael Groover
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Add method to clear out SubscriptionInfo#getCardString 

In Androird 10 access to device identifiers was limited to apps with
the READ_PRIVILEGED_PHONE_STATE permission, carrier privileges, the
READ_DEVICE_IDENTIFIERS appop set to allow, or those that pass a
device / profile owner check. TelephonyManager#getSimSerialNumber
was guarded behind these new access requirements, but the same value
is still accessible as the cardString from the SubscriptionInfo.
While getCardString is a hidden API SubscriptionInfo#toString can
be used to obtain this value.

Bug: 152057778
Test: atest SubscriptionControllerTest
Change-Id: I9b8786a321b1ba79d81b74c3041589f30df8e9c8
parent ea920f59

telephony/java/android/telephony/SubscriptionInfo.java

+17 −2
Original line number Diff line number Diff line
@@ -662,8 +662,16 @@ public class SubscriptionInfo implements Parcelable { 
    }



    /**

     * @return the card string of the SIM card which contains the subscription. The card string is

     * the ICCID for UICCs or the EID for eUICCs.

     * Returns the card string if the calling app has been granted the READ_PRIVILEGED_PHONE_STATE

     * permission, has carrier privileges (see {@link TelephonyManager#hasCarrierPrivileges}), or

     * is a device owner or profile owner on an organization owned device that has been granted the

     * READ_PHONE_STATE permission. 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>.

     *

     * @return the card string of the SIM card which contains the subscription or an empty string

     * if these requirements are not met. The card string is the ICCID for UICCs or the EID for

     * eUICCs.

     * @hide

     * //TODO rename usages in LPA: UiccSlotUtil.java, UiccSlotsManager.java, UiccSlotInfoTest.java

     */
@@ -671,6 +679,13 @@ public class SubscriptionInfo implements Parcelable { 
        return this.mCardString;

    }



    /**

     * @hide

     */

    public void clearCardString() {

        this.mCardString = "";

    }



    /**

     * Returns the card ID of the SIM card which contains the subscription (see

     * {@link UiccCardInfo#getCardId()}.