I have two android apllication ( client and a server ) that are connected by Unix domain socket on the native level (C++/JNI). Both were built using target API level 27 and were working fine for years. Recently I have upgraded them to API level 28 and now I the client can't connect to the server the connect() function return -1 . If I just change all build dependencies to use lower API levels (<=27) it connects correctly. From what i've read on the behavior changes for Android 9 I don't really know what could cause such a thing. Here is the log that i get from logcat.
com.company.client I/TSOCKET: TSocket::open()
com.company.client I/TSOCKET: TSocket::unix_open()
com.company.client I/TSOCKET: TSocket::openConnection()
com.company.client I/TSOCKET: TSocket::setLinger()
com.company.client I/TSOCKET: TSocket::setNoDelay()
com.company.client I/TSOCKET: TSocket::structlen = static_cast<socklen_t>(sizeof(address)) 110
com.company.client I/TSOCKET: TSocket::openConnection() connect() return -1
I know that API 28 requests run time permissions, and both the service and the app request and get write, read, and internet runtime permissions.
My client manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.company.client"
android:versionCode="2"
android:versionName="5.1.0">
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.FLASHLIGHT" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_label"
tools:replace="android:label"
android:requestLegacyExternalStorage="true"
android:usesCleartextTraffic="true"
android:networkSecurityConfig="@xml/network_security_config"
android:theme="@style/AppTheme" >
<activity
android:name="com.company.client.clientActivity"
android:label="@string/app_label"
android:configChanges="orientation|screenSize">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.google.zxing.client.android.CaptureActivity"
android:configChanges="orientation|keyboardHidden"
android:screenOrientation="landscape"
android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
android:windowSoftInputMode="stateAlwaysHidden" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
<intent-filter>
<action android:name="com.google.zxing.client.android.SCAN" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity android:name="ar.com.daidalos.afiledialog.FileChooserActivity" />
</application>
</manifest>
my server manifest
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.company.server"
android:versionCode="2"
android:versionName="5.1.0">
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="com.android.alarm.permission.SET_ALARM" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INTERACT_ACROSS_USERS" />
<uses-permission android:name="android.permission.INTERACT_ACROSS_USERS_FULL" />
<uses-permission android:name="android.permission.ACCESS_ALL_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.PERSISTENT_ACTIVITY" />
<uses-permission android:name="android.permission.BROADCAST_STICKY" />
<uses-permission android:name="android.permission.FILTER_EVENTS" />
<uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
<permission android:name="android.hardware.usb.host" />
<uses-feature
android:name="android.hardware.usb.host"
android:required="true" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_label"
android:requestLegacyExternalStorage="true"
android:theme="@style/AppTheme">
<receiver android:name="com.company.server.autostart">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
<activity
android:name="com.company.server.MainActivity"
android:label="@string/app_label"
android:launchMode="singleInstance"
android:theme="@android:style/Theme.Translucent.NoTitleBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service
android:name=".Service"
android:enabled="true"
android:exported="true"
android:isolatedProcess="false">
<intent-filter>
<action android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED" />
<action android:name="android.hardware.usb.action.USB_DEVICE_DETACHED" />
</intent-filter>
<meta-data
android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED"
android:resource="@xml/devices_filter" />
<meta-data
android:name="android.hardware.usb.action.USB_DEVICE_DETACHED"
android:resource="@xml/devices_filter" />
</service>
</application> </manifest>
how can I make the local socket connection to work?