Define FEATURE_TELEPHONY_IMS_SINGLE_REGISTRATION feature

Define a new feature that determines if a device supports IMS
single registration and integrate this feature tag into the
SIP transport and provisioning APIs.

Bug: 149426399
Bug: 173715911
Test: atest CtsTelephonyTestCases FrameworksTelephonyTests
Change-Id: Id9ac6a3a69be2072cf28136e98408118b7d9f07f

4 files changed, 56 insertions, 9 deletions

diff --git a/core/api/system-current.txt b/core/api/system-current.txt
index 242c7375b1fd..6f4206adc567 100644
--- a/core/api/system-current.txt
+++ b/core/api/system-current.txt
@@ -2117,6 +2117,7 @@ package android.content.pm {
     field public static final String FEATURE_INCREMENTAL_DELIVERY = "android.software.incremental_delivery";
     field public static final String FEATURE_REBOOT_ESCROW = "android.hardware.reboot_escrow";
     field public static final String FEATURE_TELEPHONY_CARRIERLOCK = "android.hardware.telephony.carrierlock";
+    field public static final String FEATURE_TELEPHONY_IMS_SINGLE_REGISTRATION = "android.hardware.telephony.ims.singlereg";
     field public static final int FLAGS_PERMISSION_RESERVED_PERMISSION_CONTROLLER = -268435456; // 0xf0000000
     field public static final int FLAG_PERMISSION_APPLY_RESTRICTION = 16384; // 0x4000
     field public static final int FLAG_PERMISSION_AUTO_REVOKED = 131072; // 0x20000
diff --git a/core/java/android/content/pm/PackageManager.java b/core/java/android/content/pm/PackageManager.java
index 00f5fb95768f..28d6c8d9ae03 100644
--- a/core/java/android/content/pm/PackageManager.java
+++ b/core/java/android/content/pm/PackageManager.java
@@ -59,6 +59,7 @@ import android.content.res.XmlResourceParser;
 import android.graphics.Rect;
 import android.graphics.drawable.AdaptiveIconDrawable;
 import android.graphics.drawable.Drawable;
+import android.net.ConnectivityManager;
 import android.net.wifi.WifiManager;
 import android.os.Build;
 import android.os.Bundle;
@@ -71,6 +72,12 @@ import android.os.incremental.IncrementalManager;
 import android.os.storage.StorageManager;
 import android.os.storage.VolumeInfo;
 import android.permission.PermissionManager;
+import android.telephony.TelephonyManager;
+import android.telephony.gba.GbaService;
+import android.telephony.ims.ImsService;
+import android.telephony.ims.ProvisioningManager;
+import android.telephony.ims.RcsUceAdapter;
+import android.telephony.ims.SipDelegateManager;
 import android.util.AndroidException;
 import android.util.Log;
 
@@ -2570,6 +2577,37 @@ public abstract class PackageManager {
     public static final String FEATURE_TELEPHONY_IMS = "android.hardware.telephony.ims";
 
     /**
+     * Feature for {@link #getSystemAvailableFeatures} and {@link #hasSystemFeature}: The device
+     * supports a single IMS registration as defined by carrier networks in the IMS service
+     * implementation using the {@link ImsService} API, {@link GbaService} API, and IRadio 1.6 HAL.
+     * <p>
+     * When set, the device must fully support the following APIs for an application to implement
+     * IMS single registration:
+     * <ul>
+     * <li> Updating RCS provisioning status using the {@link ProvisioningManager} API to supply an
+     * RCC.14 defined XML and notify IMS applications of Auto Configuration Server (ACS) or
+     * proprietary server provisioning updates.</li>
+     * <li>Opening a delegate in the device IMS service to forward SIP traffic to the carrier's
+     * network using the {@link SipDelegateManager} API</li>
+     * <li>Listening to EPS dedicated bearer establishment via the
+     * {@link ConnectivityManager#registerQosCallback}
+     * API to indicate to the application when to start/stop media traffic.</li>
+     * <li>Implementing Generic Bootstrapping Architecture (GBA) and providing the associated
+     * authentication keys to applications
+     * requesting this information via the {@link TelephonyManager#bootstrapAuthenticationRequest}
+     * API</li>
+     * <li>Implementing RCS User Capability Exchange using the {@link RcsUceAdapter} API</li>
+     * </ul>
+     * <p>
+     * This feature should only be defined if {@link #FEATURE_TELEPHONY_IMS} is also defined.
+     * @hide
+     */
+    @SystemApi
+    @SdkConstant(SdkConstantType.FEATURE)
+    public static final String FEATURE_TELEPHONY_IMS_SINGLE_REGISTRATION =
+            "android.hardware.telephony.ims.singlereg";
+
+    /**
      * Feature for {@link #getSystemAvailableFeatures} and
      * {@link #hasSystemFeature}: The device is capable of communicating with
      * other devices via ultra wideband.
diff --git a/telephony/java/android/telephony/ims/ProvisioningManager.java b/telephony/java/android/telephony/ims/ProvisioningManager.java
index f3c38bcba98a..08eec29d5ac2 100644
--- a/telephony/java/android/telephony/ims/ProvisioningManager.java
+++ b/telephony/java/android/telephony/ims/ProvisioningManager.java
@@ -25,6 +25,7 @@ import android.annotation.SdkConstant;
 import android.annotation.StringDef;
 import android.annotation.SystemApi;
 import android.annotation.WorkerThread;
+import android.content.pm.PackageManager;
 import android.os.Binder;
 import android.os.RemoteException;
 import android.os.ServiceSpecificException;
@@ -1325,7 +1326,7 @@ public class ProvisioningManager {
      * the RCS VoLTE single registration feature. Only default messaging application may receive
      * the intent.
      *
-     * <p>Contains {@link #EXTRA_SUBSCRIPTION_INDEX} to specify the subscription index for which
+     * <p>Contains {@link #EXTRA_SUBSCRIPTION_ID} to specify the subscription index for which
      * the intent is valid. and {@link #EXTRA_STATUS} to specify RCS VoLTE single registration
      * status.
      */
@@ -1371,7 +1372,7 @@ public class ProvisioningManager {
      * provisioning is done using autoconfiguration, then these parameters shall be
      * sent in the HTTP get request to fetch the RCS provisioning. RCS client
      * configuration must be provided by the application before registering for the
-     * provisioning status events {@link #registerRcsProvisioningChangedCallback()}
+     * provisioning status events {@link #registerRcsProvisioningChangedCallback}
      * @param rcc RCS client configuration {@link RcsClientConfiguration}
      */
     @RequiresPermission(Manifest.permission.MODIFY_PHONE_STATE)
@@ -1387,13 +1388,15 @@ public class ProvisioningManager {
     }
 
     /**
-     * Returns a flag to indicate if the device software and the carrier
-     * have the capability to support RCS Volte single IMS registration.
-     * @return true if this single registration is capable, false otherwise
+     * Returns a flag to indicate whether or not the device supports IMS single registration for
+     * MMTEL and RCS features as well as if the carrier has provisioned the feature.
+     * @return true if IMS single registration is capable at this time, or false otherwise
      * @throws ImsException If the remote ImsService is not available for
      * any reason or the subscription associated with this instance is no
      * longer active. See {@link ImsException#getCode()} for more
      * information.
+     * @see PackageManager#FEATURE_TELEPHONY_IMS_SINGLE_REGISTRATION for whether or not this
+     * device supports IMS single registration.
      */
     @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     public boolean isRcsVolteSingleRegistrationCapable() throws ImsException {
@@ -1430,7 +1433,7 @@ public class ProvisioningManager {
      * available. This can happen if the service crashed, for example.
      * It shall also throw this exception when the RCS client parameters for the
      * application are not valid. In that case application must set the client
-     * params (See {@link #setRcsClientConfiguration()}) and re register the
+     * params (See {@link #setRcsClientConfiguration}) and re register the
      * callback.
      * See {@link ImsException#getCode()} for a more detailed reason.
      */
@@ -1458,9 +1461,9 @@ public class ProvisioningManager {
      * will result in a no-op.
      * @param callback The existing {@link RcsProvisioningCallback} to be
      * removed.
-     * @see #registerRcsProvisioningChangedCallback(RcsClientConfiguration,
-     * Executor, RcsProvisioningCallback) @throws IllegalArgumentException
-     * if the subscription associated with this callback is invalid.
+     * @see #registerRcsProvisioningChangedCallback
+     * @throws IllegalArgumentException if the subscription associated with this callback is
+     * invalid.
      */
     @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     public void unregisterRcsProvisioningChangedCallback(
diff --git a/telephony/java/android/telephony/ims/SipDelegateManager.java b/telephony/java/android/telephony/ims/SipDelegateManager.java
index 2e9eb94605a5..04421c9a2449 100644
--- a/telephony/java/android/telephony/ims/SipDelegateManager.java
+++ b/telephony/java/android/telephony/ims/SipDelegateManager.java
@@ -24,6 +24,7 @@ import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
 import android.annotation.SystemApi;
 import android.content.Context;
+import android.content.pm.PackageManager;
 import android.os.RemoteException;
 import android.os.ServiceSpecificException;
 import android.telephony.BinderCacheManager;
@@ -47,6 +48,9 @@ import java.util.concurrent.Executor;
  * This allows multiple IMS applications to forward SIP messages to/from their application for the
  * purposes of providing a single IMS registration to the carrier's IMS network from potentially
  * many IMS stacks implementing a subset of the supported MMTEL/RCS features.
+ * <p>
+ * This API is only supported if the device supports the
+ * {@link PackageManager#FEATURE_TELEPHONY_IMS_SINGLE_REGISTRATION} feature.
  * @hide
  */
 @SystemApi
@@ -269,6 +273,7 @@ public class SipDelegateManager {
      * {@link ImsException#getCode()} for more information.
      *
      * @see CarrierConfigManager.Ims#KEY_IMS_SINGLE_REGISTRATION_REQUIRED_BOOL
+     * @see PackageManager#FEATURE_TELEPHONY_IMS_SINGLE_REGISTRATION
      */
     @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     public boolean isSupported() throws ImsException {