Added read phone state permission for getNetworkCountryIso

The slot based version of getNetworkCountryIso is a system API.
So it needs to be gaurded by permission.

Bug: 141646066
Test: Telephony sanity tests
Change-Id: I810ff0b77b93870ae3f62769977c7094789d0a5a

4 files changed, 13 insertions, 5 deletions

diff --git a/api/system-current.txt b/api/system-current.txt
index 279d2c89808e..2a40d4fd43b9 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -8236,7 +8236,7 @@ package android.telephony {
     method @Nullable @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public String getIsimIst();
     method @NonNull @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public java.util.Map<java.lang.Integer,java.lang.Integer> getLogicalToPhysicalSlotMapping();
     method public static long getMaxNumberVerificationTimeoutMillis();
-    method @NonNull public String getNetworkCountryIso(int);
+    method @NonNull @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public String getNetworkCountryIso(int);
     method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public long getPreferredNetworkTypeBitmask();
     method @RequiresPermission(anyOf={android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE, android.Manifest.permission.READ_PHONE_STATE}) public int getRadioPowerState();
     method public int getSimApplicationState();
diff --git a/api/test-current.txt b/api/test-current.txt
index 75d80bd9eeaf..75ece39595d3 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -2914,7 +2914,7 @@ package android.telephony {
     method public int checkCarrierPrivilegesForPackage(String);
     method public int getCarrierIdListVersion();
     method @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public String getLine1AlphaTag();
-    method @NonNull public String getNetworkCountryIso(int);
+    method @NonNull @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public String getNetworkCountryIso(int);
     method public android.util.Pair<java.lang.Integer,java.lang.Integer> getRadioHalVersion();
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void refreshUiccProfile();
     method @Deprecated public void setCarrierTestOverride(String, String, String, String, String, String, String);
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index 4f276bc845ca..a94fd487e332 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -2449,7 +2449,14 @@ public class TelephonyManager {
      * @return the lowercase 2 character ISO-3166 country code, or empty string if not available.
      */
     public String getNetworkCountryIso() {
-        return getNetworkCountryIso(getPhoneId());
+        try {
+            ITelephony telephony = getITelephony();
+            if (telephony == null) return "";
+            return telephony.getNetworkCountryIsoForPhone(getPhoneId(),
+                    null /* no permission check */);
+        } catch (RemoteException ex) {
+            return "";
+        }
     }
 
     /**
@@ -2475,11 +2482,12 @@ public class TelephonyManager {
     @SystemApi
     @TestApi
     @NonNull
+    @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     public String getNetworkCountryIso(int slotIndex) {
         try {
             ITelephony telephony = getITelephony();
             if (telephony == null) return "";
-            return telephony.getNetworkCountryIsoForPhone(slotIndex);
+            return telephony.getNetworkCountryIsoForPhone(slotIndex, getOpPackageName());
         } catch (RemoteException ex) {
             return "";
         }
diff --git a/telephony/java/com/android/internal/telephony/ITelephony.aidl b/telephony/java/com/android/internal/telephony/ITelephony.aidl
index 866e936a1211..4d9057975727 100644
--- a/telephony/java/com/android/internal/telephony/ITelephony.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephony.aidl
@@ -302,7 +302,7 @@ interface ITelephony {
      * operator's MCC (Mobile Country Code).
      * @see android.telephony.TelephonyManager#getNetworkCountryIso
      */
-    String getNetworkCountryIsoForPhone(int phoneId);
+    String getNetworkCountryIsoForPhone(int phoneId, String callingPkg);
 
     /**
      * Returns the neighboring cell information of the device.