[MT8766][Android12] 使用谷歌LPA实现ESIM功能的流程

文章目录

• • 开发平台基本信息
  • 问题描述
  • 实现流程
  • 其他问题

    开发平台基本信息

    芯片: MT8766

    版本: Android 12

    kernel: msm-4.19

    问题描述

    客户需要我们设备支持ESIM功能，5月份的时候在高通6125上面预研过ESIM功能，当时ESIM供应商是Links field，集成流程只是内置了ESIM厂商的apk，并且开启了feature以及默认给了一些权限，具体ESIM功能的实现都是在厂商的apk中，所以就没去深入研究ESIM功能。但是，由于Links field报价过高，所以这次又找了两家ESIM厂商，分别是鹏越与紫光；鹏越只把他们的ESIM芯片寄给了我们，然后让我们去找GMS实验室要LPA的相关资料，按照谷歌的标准流程操作，即可实现ESIM功能；而紫光则提供了一个他们的apk，并且要求给权限与feature，与之前的Links field类似。GMS实验室提供了一份资料，里面包含了3份文档以及一个apk。

    三份文档的内容大致为：

    • 1、如何集成LPA
    • 2、如何实现overlay app
    • 3、如何在开机向导和系统设置增加ESIM选项

      ESIM功能可以简单理解为，ESIM厂家提供芯片，芯片分为贴片式跟拔插式，贴片式是贴到主板上，类似于各种单片机；而拔插式则是一张实体ESIM卡，长得跟普通的SIM卡一样，需要插入到卡槽中才能使用；然后，就到ESIM运营商购买ESIM卡号，安卓系统就可以通过谷歌LPA服务将购买的ESIM卡号下载到ESIM芯片中，下载完成启用ESIM卡就能正常使用了，一张ESIM芯片可以下载多个ESIM卡，但是，设备最多只能启用一张ESIM。

      实现流程

      在验证ESIM功能之前，可以先到设置-关于手机-sim卡详细信息中查看是否有EID，EID是ESIM芯片的唯一标识，代表着ESIM的正常使用，如果设备无法读取到EID，得排查硬件通路以及modem。

      ESIM功能都实现流程可以分为以下几个步骤：

      • 启用euicc的feature
      • 内置谷歌LPA服务到system/priv-app/
      • 给LPA服务增加priv-app权限或者关闭权限校验
      • 增加overlay app
      • 在系统设置中，调起LPA服务下载ESIM卡号，并启用ESIM

        framework中已经有euicc的feature，只需要拷贝到设备即可

        --- a/device/mediateksample/custom_go/full_custom_go.mk+++ b/device/mediateksample/custom_go/full_custom_go.mk@@ -7,3 +7,11 @@ MTK_TARGET_PROJECT_FOLDER := $(LOCAL_PATH) -include $(MTK_TARGET_PROJECT_FOLDER)/vnd_$(MTK_TARGET_PROJECT).mk  PRODUCT_NAME := full_custom_go +PRODUCT_COPY_FILES += \+frameworks/native/data/etc/android.hardware.telephony.euicc.xml:system/etc/permissions/android.hardware.telephony.euicc.xml \+

        内置谷歌LPA服务到system/priv-app/

        --- a/device/mediateksample/p8_go/full_custom_go.mk+++ b/device/mediateksample/p8_go/full_custom_go.mk@@ -7,3 +7,11 @@ MTK_TARGET_PROJECT_FOLDER := $(LOCAL_PATH) -include $(MTK_TARGET_PROJECT_FOLDER)/vnd_$(MTK_TARGET_PROJECT).mk  PRODUCT_NAME := full_custom_go++PRODUCT_PACKAGES += \+EuiccGoogle \+LOCAL_PATH := $(call my-dir)###############################################################################include $(CLEAR_VARS)LOCAL_MODULE := EuiccGoogleLOCAL_SRC_FILES := EuiccGoogle.apkLOCAL_MODULE_CLASS := APPSLOCAL_CERTIFICATE := PRESIGNEDLOCAL_PRIVILEGED_MODULE := trueLOCAL_MODULE_TAGS := optionalinclude $(BUILD_PREBUILT)

        给LPA服务增加priv-app权限或者关闭权限校验，这里选择的是关闭权限校验

        --- a/frameworks/base/services/core/java/com/android/server/pm/permission/PermissionManagerService.java+++ b/frameworks/base/services/core/java/com/android/server/pm/permission/PermissionManagerService.java@@ -3469,6 +3469,8 @@ public class PermissionManagerService extends IPermissionManager.Stub {             @NonNull PackageSetting packageSetting, @NonNull Permission permission) {         if (RoSystemProperties.CONTROL_PRIVAPP_PERMISSIONS_DISABLE) {             return true;+        }else if (!RoSystemProperties.CONTROL_PRIVAPP_PERMISSIONS_DISABLE) {+            return true;         }         final String packageName = pkg.getPackageName();         if (Objects.equals(packageName, PLATFORM_PACKAGE_NAME)) {

        增加overlay app，这个app是自己写的，需要实现几个功能

        • 在AndroidManifest.xml中注册广播
          • 在java文件中实现广播，并且广播方法中必须为空

            package com.tp.euicc.overlay;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;public class PartnerReceiver extends BroadcastReceiver {    public PartnerReceiver() {    }    @Override    public void onReceive(Context context, Intent intent) {    }}

            • 在res/values/strings.xml中增加两个字段

                  {"sim-slot-mappings":[{"devices":["custom_go"],"esim-slot-ids":[0],"psim-slot-ids":[1]}]}    3

              谷歌LPA就是通过广播找到overlay app，然后从app的资源文件中获取sim_slot_mappings_json的值，拿到配置数据，其中devices的值要修改为Build.DEVICE，如果是其他项目移植要记得修改。后面的esim是虚拟sim卡，psim是物理sim卡，ids的值分别是对应的卡槽，比如在SIM 1卡槽接了ESIM，这里就配成0，不过实际测试，不过怎么配置ids，都能使用ESIM。

              在系统设置中，调起LPA服务下载ESIM卡号，并启用ESIM

              按照上面的方式集成之后，在系统设置-网络-移动网络选项，如果没有下载过ESIM，点击就会调起谷歌LPA服务，或者可以通过adb广播调起LPA配置界面，然后根据提示，扫描二维码，下载ESIM卡号即可。

              adb shell am start -n"com.google.android.euicc/com.android.euicc.ui.settings.CurrentProfileListActivity"

              其他问题

              之前在2290上面调试，出现下载完ESIM卡号之后，无法启用ESIM功能，需要在ESIM界面开、关一次飞行模式，ESIM启用按钮才可以点击。解决方案如下：

              --- a/QSSI.12/packages/apps/Settings/src/com/android/settings/network/telephony/MobileNetworkSettings.java+++ b/QSSI.12/packages/apps/Settings/src/com/android/settings/network/telephony/MobileNetworkSettings.java@@ -58,6 +58,7 @@ import com.android.settingslib.search.SearchIndexable; import com.android.settingslib.utils.ThreadUtils;  import org.codeaurora.internal.IExtTelephony;  import java.util.Arrays; import java.util.List;@@ -106,7 +107,8 @@ public class MobileNetworkSettings extends AbstractMobileNetworkSettings {      private void setScreenState() {         int simState = mTelephonyManager.getSimState();-        boolean screenState = simState != TelephonyManager.SIM_STATE_ABSENT;+        // boolean screenState = simState != TelephonyManager.SIM_STATE_ABSENT;+        boolean screenState = true;         if (screenState) {

              在MTK8766中同样出现不可点击的问题，而且还把白卡显示出来，造成了混淆，解决方案如下：

              --- a/vendor/mediatek/proprietary/packages/apps/MtkSettings/src/com/android/settings/network/MobileNetworkListController.java+++ b/vendor/mediatek/proprietary/packages/apps/MtkSettings/src/com/android/settings/network/MobileNetworkListController.java@@ -26,7 +26,9 @@ import android.content.Intent; import android.provider.Settings; import android.telephony.SubscriptionInfo; import android.telephony.SubscriptionManager;+import android.telephony.euicc.EuiccManager; import android.util.ArrayMap;+import android.util.Log;  import androidx.lifecycle.Lifecycle; import androidx.lifecycle.LifecycleObserver;@@ -122,7 +124,7 @@ public class MobileNetworkListController extends AbstractPreferenceController im                 } else {                     pref.setSummary(R.string.mobile_network_inactive_esim);                     /// M: Add for updating enabled state.-                    pref.setEnabled(false);+                    //pref.setEnabled(false);                 }             } else {                 if (mSubscriptionManager.isActiveSubscriptionId(subId)) {@@ -130,7 +132,7 @@ public class MobileNetworkListController extends AbstractPreferenceController im                 } else if (SubscriptionUtil.showToggleForPhysicalSim(mSubscriptionManager)) {                     pref.setSummary(mContext.getString(R.string.mobile_network_inactive_sim));                     /// M: Add for updating enabled state.-                    pref.setEnabled(false);+                    //pref.setEnabled(false);                 } else {                     pref.setSummary(mContext.getString(R.string.mobile_network_tap_to_activate,                             displayName));@@ -138,7 +140,14 @@ public class MobileNetworkListController extends AbstractPreferenceController im             }              pref.setOnPreferenceClickListener(clickedPref -> {-                if (!info.isEmbedded() && !mSubscriptionManager.isActiveSubscriptionId(subId)+                Log.d(TAG, "clickedPref isEmbedded: " + (info.isEmbedded()));+                               Log.d(TAG, "clickedPref isActiveSubscriptionId: " + (mSubscriptionManager.isActiveSubscriptionId(subId)));+                Log.d(TAG, "clickedPref showToggleForPhysicalSim: " + (SubscriptionUtil.showToggleForPhysicalSim(mSubscriptionManager)));+                               /// M: Add for updating enabled state.+                               if(info.isEmbedded()){+                                       Intent intent = new Intent(EuiccManager.ACTION_MANAGE_EMBEDDED_SUBSCRIPTIONS);+                                       mContext.startActivity(intent);+                }else if (!info.isEmbedded() && !mSubscriptionManager.isActiveSubscriptionId(subId)                         && !SubscriptionUtil.showToggleForPhysicalSim(mSubscriptionManager)) {                     SubscriptionUtil.startToggleSubscriptionDialogActivity(mContext, subId, true);                 } else {--- a/vendor/mediatek/proprietary/packages/apps/MtkSettings/src/com/android/settings/network/MobileNetworkSummaryController.java+++ b/vendor/mediatek/proprietary/packages/apps/MtkSettings/src/com/android/settings/network/MobileNetworkSummaryController.java@@ -258,8 +258,17 @@ public class MobileNetworkSummaryController extends AbstractPreferenceController                 mPreference.setEnabled(false);             }             /// @}-        } else {-            mPreference.setFragment(MobileNetworkListFragment.class.getCanonicalName());+        } else {                       +                       /// M: Add for updating enabled state.+                       mPreference.setOnPreferenceClickListener((Preference pref) -> {+                logPreferenceClick(pref);++                Intent intent = new Intent(EuiccManager.ACTION_MANAGE_EMBEDDED_SUBSCRIPTIONS);+                               mContext.startActivity(intent);+                return true;+            });+                       +            //mPreference.setFragment(MobileNetworkListFragment.class.getCanonicalName());         }     }--- a/vendor/mediatek/proprietary/packages/apps/MtkSettings/src/com/android/settings/network/telephony/MobileNetworkSettings.java+++ b/vendor/mediatek/proprietary/packages/apps/MtkSettings/src/com/android/settings/network/telephony/MobileNetworkSettings.java@@ -27,6 +27,7 @@ import android.provider.Settings; import android.provider.SearchIndexableResource; import android.telephony.SubscriptionManager; import android.telephony.TelephonyManager;+import android.telephony.euicc.EuiccManager; import android.text.TextUtils; import android.util.Log; import android.view.Menu;@@ -100,8 +101,12 @@ public class MobileNetworkSettings extends AbstractMobileNetworkSettings {             return true;         }         final String key = preference.getKey();+               +               Intent intent = new Intent(EuiccManager.ACTION_MANAGE_EMBEDDED_SUBSCRIPTIONS);+               startActivity(intent);+               return true; -        if (TextUtils.equals(key, BUTTON_CDMA_SYSTEM_SELECT_KEY)+        /*if (TextUtils.equals(key, BUTTON_CDMA_SYSTEM_SELECT_KEY)                 || TextUtils.equals(key, BUTTON_CDMA_SUBSCRIPTION_KEY)) {             if (mTelephonyManager.getEmergencyCallbackMode()) {                 startActivityForResult(@@ -112,7 +117,7 @@ public class MobileNetworkSettings extends AbstractMobileNetworkSettings {             return true;         } -        return false;+        return false;*/     }      @Overridediff --git a/vendor/mediatek/proprietary/packages/apps/MtkSettings/src/com/android/settings/security/SimLockPreferenceController.java b/vendor/mediatek/proprietary/packages/apps/MtkSettings/src/com/android/settings/security/SimLockPreferenceController.javaindex 3b85888..98cbc9b 100644--- a/vendor/mediatek/proprietary/packages/apps/MtkSettings/src/com/android/settings/security/SimLockPreferenceController.java+++ b/vendor/mediatek/proprietary/packages/apps/MtkSettings/src/com/android/settings/security/SimLockPreferenceController.java@@ -94,10 +94,10 @@ public class SimLockPreferenceController extends BasePreferenceController {          for (SubscriptionInfo subInfo : subInfoList) {             final int simState = mTelephonyManager.getSimState(subInfo.getSimSlotIndex());-            if ((simState != TelephonyManager.SIM_STATE_ABSENT)-                    && (simState != TelephonyManager.SIM_STATE_UNKNOWN)) {+            // if ((simState != TelephonyManager.SIM_STATE_ABSENT)+            //         && (simState != TelephonyManager.SIM_STATE_UNKNOWN)) {                 return true;-            }+            // }         }         return false;     }

              MTK8766下载完ESIM卡号之后，有信号，能ping通百度，但是浏览器无法上网，最终定位是他们默认APN配置的问题

              --- a/device/mediatek/config/apns-conf.xml+++ b/device/mediatek/config/apns-conf.xml@@ -25782,12 +25782,12 @@        mcc="454"        mnc="00"        apn="mobile"-       proxy="192.168.59.51"-       port="8080"-       mmsc="http://192.168.58.171:8002"-       mmsproxy="192.168.59.51"-       mmsport="8080"-       type="default,supl,mms"+       proxy=""+       port=""+       mmsc=""+       mmsproxy=""+       mmsport=""+       type="default,ia,supl"        protocol="IPV4V6"        roaming_protocol="IPV4V6"   />