nfc(API): Add API for EUICC offhost CE support

More CL's to follow which uses this new feature flag.

Bug: 321314635
Test: TH
Change-Id: I5f3b4517e84041e1c15adc69116fba505f0ce851

6 files changed, 37 insertions, 4 deletions

diff --git a/nfc/api/system-current.txt b/nfc/api/system-current.txt
index 0f97b2c8d443..cdf8f89f683a 100644
--- a/nfc/api/system-current.txt
+++ b/nfc/api/system-current.txt
@@ -97,6 +97,7 @@ package android.nfc.cardemulation {
   public final class CardEmulation {
     method @FlaggedApi("android.permission.flags.wallet_role_enabled") @Nullable @RequiresPermission(android.Manifest.permission.NFC_PREFERRED_PAYMENT_INFO) public static android.content.ComponentName getPreferredPaymentService(@NonNull android.content.Context);
     method @FlaggedApi("android.nfc.enable_nfc_mainline") @NonNull public java.util.List<android.nfc.cardemulation.ApduServiceInfo> getServices(@NonNull String, int);
+    method @FlaggedApi("android.nfc.enable_card_emulation_euicc") public boolean isEuiccSupported();
     method @FlaggedApi("android.nfc.nfc_override_recover_routing_table") public void overrideRoutingTable(@NonNull android.app.Activity, int, int);
     method @FlaggedApi("android.nfc.nfc_override_recover_routing_table") public void recoverRoutingTable(@NonNull android.app.Activity);
   }
diff --git a/nfc/java/android/nfc/INfcCardEmulation.aidl b/nfc/java/android/nfc/INfcCardEmulation.aidl
index 79f1275ec629..19b9e0f0b515 100644
--- a/nfc/java/android/nfc/INfcCardEmulation.aidl
+++ b/nfc/java/android/nfc/INfcCardEmulation.aidl
@@ -50,4 +50,5 @@ interface INfcCardEmulation
 
     void overrideRoutingTable(int userHandle, String protocol, String technology, in String pkg);
     void recoverRoutingTable(int userHandle);
+    boolean isEuiccSupported();
 }
diff --git a/nfc/java/android/nfc/NfcAdapter.java b/nfc/java/android/nfc/NfcAdapter.java
index 22ae612b5cfc..f47879385070 100644
--- a/nfc/java/android/nfc/NfcAdapter.java
+++ b/nfc/java/android/nfc/NfcAdapter.java
@@ -721,7 +721,7 @@ public final class NfcAdapter {
      *
      * @return List<String> containing secure elements on the device which supports
      *                      off host card emulation. eSE for Embedded secure element,
-     *                      SIM for UICC and so on.
+     *                      SIM for UICC, eSIM for EUICC and so on.
      * @hide
      */
     public @NonNull List<String> getSupportedOffHostSecureElements() {
@@ -741,6 +741,11 @@ public final class NfcAdapter {
         if (pm.hasSystemFeature(PackageManager.FEATURE_NFC_OFF_HOST_CARD_EMULATION_ESE)) {
             offHostSE.add("eSE");
         }
+        if (Flags.enableCardEmulationEuicc()
+                && callServiceReturn(
+                        () -> sCardEmulationService.isEuiccSupported(), false)) {
+            offHostSE.add("eSIM");
+        }
         return offHostSE;
     }
 
diff --git a/nfc/java/android/nfc/cardemulation/ApduServiceInfo.java b/nfc/java/android/nfc/cardemulation/ApduServiceInfo.java
index 3cf0a4dc4873..ea5a03613ddc 100644
--- a/nfc/java/android/nfc/cardemulation/ApduServiceInfo.java
+++ b/nfc/java/android/nfc/cardemulation/ApduServiceInfo.java
@@ -308,6 +308,8 @@ public final class ApduServiceInfo implements Parcelable {
                         mOffHostName = "eSE1";
                     } else if (mOffHostName.equals("SIM")) {
                         mOffHostName = "SIM1";
+                    } else if (Flags.enableCardEmulationEuicc() && mOffHostName.equals("eSIM")) {
+                        mOffHostName = "eSIM1";
                     }
                 }
                 mStaticOffHostName = mOffHostName;
diff --git a/nfc/java/android/nfc/cardemulation/CardEmulation.java b/nfc/java/android/nfc/cardemulation/CardEmulation.java
index 497309c12d8a..a72a8964203a 100644
--- a/nfc/java/android/nfc/cardemulation/CardEmulation.java
+++ b/nfc/java/android/nfc/cardemulation/CardEmulation.java
@@ -548,11 +548,13 @@ public final class CardEmulation {
 
         List<String> validSE = adapter.getSupportedOffHostSecureElements();
         if ((offHostSecureElement.startsWith("eSE") && !validSE.contains("eSE"))
-                || (offHostSecureElement.startsWith("SIM") && !validSE.contains("SIM"))) {
+                || (offHostSecureElement.startsWith("SIM") && !validSE.contains("SIM"))
+                || (offHostSecureElement.startsWith("eSIM") && !validSE.contains("eSIM"))) {
             return false;
         }
 
-        if (!offHostSecureElement.startsWith("eSE") && !offHostSecureElement.startsWith("SIM")) {
+        if (!offHostSecureElement.startsWith("eSE") && !offHostSecureElement.startsWith("SIM")
+                && !(Flags.enableCardEmulationEuicc() && offHostSecureElement.startsWith("eSIM"))) {
             return false;
         }
 
@@ -560,6 +562,8 @@ public final class CardEmulation {
             offHostSecureElement = "eSE1";
         } else if (offHostSecureElement.equals("SIM")) {
             offHostSecureElement = "SIM1";
+        } else if (Flags.enableCardEmulationEuicc() && offHostSecureElement.equals("eSIM")) {
+            offHostSecureElement = "eSIM1";
         }
         final String offHostSecureElementV = new String(offHostSecureElement);
         return callServiceReturn(() ->
@@ -985,6 +989,18 @@ public final class CardEmulation {
     }
 
     /**
+     * Is EUICC supported as a Secure Element EE which supports off host card emulation.
+     *
+     * @return true if the device supports EUICC for off host card emulation, false otherwise.
+     * @hide
+     */
+    @SystemApi
+    @FlaggedApi(android.nfc.Flags.FLAG_ENABLE_CARD_EMULATION_EUICC)
+    public boolean isEuiccSupported() {
+        return callServiceReturn(() -> sService.isEuiccSupported(), false);
+    }
+
+    /**
      * Returns the value of {@link Settings.Secure#NFC_PAYMENT_DEFAULT_COMPONENT}.
      *
      * @param context A context
diff --git a/nfc/java/android/nfc/flags.aconfig b/nfc/java/android/nfc/flags.aconfig
index 9a4ee2fa22ab..f942911cb104 100644
--- a/nfc/java/android/nfc/flags.aconfig
+++ b/nfc/java/android/nfc/flags.aconfig
@@ -147,4 +147,12 @@ flag {
     namespace: "nfc"
     description: "Enable watchdog for the NFC system process"
     bug: "362937338"
-}
\ No newline at end of file
+}
+
+flag {
+    name: "enable_card_emulation_euicc"
+    is_exported: true
+    namespace: "nfc"
+    description: "Enable EUICC card emulation"
+    bug: "321314635"
+}