绕过android usb主机权限确认对话框

我想在工业上使用安卓系统

我可以通过slickdevlabs.com库连接到Profilic和Ftdi USB到串行芯片，没有任何问题

应用程序有一个服务，它在引导时启动，连接到usb串行端口并执行其他操作

我的问题是主机设备与用户没有任何交互

所以当安卓问到

Allow the app "MyAPP" to access the USB device ?
[checkmark]Use by default for this USB device
Cancel            OK

没有人可以单击“确定”

即使我在默认情况下选中使用。。。复选框，如果我重新插入USB或重新启动主机设备，它会在下次启动时再次询问

我以超级用户模式运行服务和应用程序，但没有区别，它再次问道

我添加了意图过滤器，但没有区别，它每次都会问我

        <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/device_filter" />
        <meta-data
            android:name="android.hardware.usb.action.USB_DEVICE_DETACHED"
            android:resource="@xml/device_filter" />

有没有关于如何绕过或禁用它的意见

---

我有root和SU访问权限。

安卓系统的设计并不是为了支持这种开箱即用的使用。就个人而言，对于非交互式使用，我很想考虑在Linux内核中使用USB串行驱动程序，跳过Android USB API。但你必须认真修改安卓安装——更改内核配置和/或加载模块，创建设备文件并设置其权限或所有者，可能为允许访问的应用程序添加unix组和安卓权限

或者你可以通过android源代码查看并禁用用户确认；但是，如果您没有用于该设备的源代码android构建，这可能比linux级别的想法更为棘手，因为将开源android应用于供应商设备上并非易事（除非已经有人提供了一个源代码构建，该构建对于所讨论的设备来说功能充分）

---

显然，root/su访问并不适用于应用程序本身——它只意味着知道如何运行您的root黑客留下的任何工具的应用程序可以启动一个以root身份运行的帮助程序，但应用程序本身没有也不能。使用root在系统分区上安装应用程序可能会获得一些非典型的android权限，但您必须检查是否有任何可以帮助您使用usb的权限。

我认为我们可以通过在

/etc/udev

中进行一些修改来实现这一点。我们可以将供应商id和设备id添加到

51 android.rules

文件中。

实现这一点的一种方法是，请注意，这实际上并不排除确认，将是精确定位

复选框的位置

，并使用相当于类的Android来选择它，然后选择

确定

。你可以编写一个在后台运行的应用程序，它甚至可以被你提到的启动服务调用，特别是为了这个目的。

根据Android开发者的文档，当你的应用程序通过manifest intent过滤器启动时，你已经拥有连接USB设备的权限。也许你应该尝试这种方法，编写一个过滤器来精确匹配你想要使用的设备，以防止其他应用程序也想要与该设备通信

---

请看

上的“注意事项”，我知道有点晚了，但还是

我也有同样的问题，我想我已经设法解决了。Android内部使用的一项服务允许管理USB设备和附件。 此服务对第三方开发人员隐藏，并且没有文档记录。如果您检查UsbPermissionActivity的源代码，您将能够了解如何调用该服务。 为了调用服务，使用了IUsbManager接口和ServiceManager类。它们都是隐藏的，所以你不能直接使用它们。但你能做的就是 使用完全相同的名称在相应的名称空间（包）中创建它们的存根。然后您将能够编译该代码，而运行时环境将使用真实的东西

唯一的要求是您的应用程序必须是系统应用程序——也就是说，它必须位于/system/app/目录中。因为你的设备是根目录的，所以这不应该是个问题

因此，您必须向项目中添加一个包：“android.hardware.usb”，并在其中放入一个名为“IUsbManager.java”的文件，其中包含以下内容：

package android.hardware.usb;

public interface IUsbManager extends android.os.IInterface
{
    /** Local-side IPC implementation stub class. */
    public static abstract class Stub extends android.os.Binder implements android.hardware.usb.IUsbManager
    {
        /** Construct the stub at attach it to the interface. */
        public Stub()
        {
            throw new RuntimeException( "Stub!" );
        }
        /**
         * Cast an IBinder object into an android.hardware.usb.IUsbManager interface,
         * generating a proxy if needed.
         */
        public static android.hardware.usb.IUsbManager asInterface( android.os.IBinder obj )
        {
            throw new RuntimeException( "Stub!" );
        }

        public android.os.IBinder asBinder()
        {
            throw new RuntimeException( "Stub!" );
        }

        public boolean onTransact( int code, android.os.Parcel data, android.os.Parcel reply, int flags ) throws android.os.RemoteException
        {
            throw new RuntimeException( "Stub!" );
        }

        static final int TRANSACTION_getDeviceList = (android.os.IBinder.FIRST_CALL_TRANSACTION + 0);
        static final int TRANSACTION_openDevice = (android.os.IBinder.FIRST_CALL_TRANSACTION + 1);
        static final int TRANSACTION_getCurrentAccessory = (android.os.IBinder.FIRST_CALL_TRANSACTION + 2);
        static final int TRANSACTION_openAccessory = (android.os.IBinder.FIRST_CALL_TRANSACTION + 3);
        static final int TRANSACTION_setDevicePackage = (android.os.IBinder.FIRST_CALL_TRANSACTION + 4);
        static final int TRANSACTION_setAccessoryPackage = (android.os.IBinder.FIRST_CALL_TRANSACTION + 5);
        static final int TRANSACTION_hasDevicePermission = (android.os.IBinder.FIRST_CALL_TRANSACTION + 6);
        static final int TRANSACTION_hasAccessoryPermission = (android.os.IBinder.FIRST_CALL_TRANSACTION + 7);
        static final int TRANSACTION_requestDevicePermission = (android.os.IBinder.FIRST_CALL_TRANSACTION + 8);
        static final int TRANSACTION_requestAccessoryPermission = (android.os.IBinder.FIRST_CALL_TRANSACTION + 9);
        static final int TRANSACTION_grantDevicePermission = (android.os.IBinder.FIRST_CALL_TRANSACTION + 10);
        static final int TRANSACTION_grantAccessoryPermission = (android.os.IBinder.FIRST_CALL_TRANSACTION + 11);
        static final int TRANSACTION_hasDefaults = (android.os.IBinder.FIRST_CALL_TRANSACTION + 12);
        static final int TRANSACTION_clearDefaults = (android.os.IBinder.FIRST_CALL_TRANSACTION + 13);
        static final int TRANSACTION_setCurrentFunction = (android.os.IBinder.FIRST_CALL_TRANSACTION + 14);
        static final int TRANSACTION_setMassStorageBackingFile = (android.os.IBinder.FIRST_CALL_TRANSACTION + 15);
    }

    /* Returns a list of all currently attached USB devices */
    public void getDeviceList( android.os.Bundle devices ) throws android.os.RemoteException;
    /* Returns a file descriptor for communicating with the USB device.
         * The native fd can be passed to usb_device_new() in libusbhost.
         */
    public android.os.ParcelFileDescriptor openDevice( java.lang.String deviceName ) throws android.os.RemoteException;
    /* Returns the currently attached USB accessory */
    public android.hardware.usb.UsbAccessory getCurrentAccessory() throws android.os.RemoteException;
    /* Returns a file descriptor for communicating with the USB accessory.
         * This file descriptor can be used with standard Java file operations.
         */
    public android.os.ParcelFileDescriptor openAccessory( android.hardware.usb.UsbAccessory accessory ) throws android.os.RemoteException;
    /* Sets the default package for a USB device
         * (or clears it if the package name is null)
         */
    public void setDevicePackage( android.hardware.usb.UsbDevice device, java.lang.String packageName ) throws android.os.RemoteException;
    /* Sets the default package for a USB accessory
         * (or clears it if the package name is null)
         */
    public void setAccessoryPackage( android.hardware.usb.UsbAccessory accessory, java.lang.String packageName ) throws android.os.RemoteException;
    /* Returns true if the caller has permission to access the device. */
    public boolean hasDevicePermission(android.hardware.usb.UsbDevice device) throws android.os.RemoteException;
    /* Returns true if the caller has permission to access the accessory. */
    public boolean hasAccessoryPermission( android.hardware.usb.UsbAccessory accessory ) throws android.os.RemoteException;
    /* Requests permission for the given package to access the device.
         * Will display a system dialog to query the user if permission
         * had not already been given.
         */
    public void requestDevicePermission( android.hardware.usb.UsbDevice device, java.lang.String packageName, android.app.PendingIntent pi ) throws android.os.RemoteException;
    /* Requests permission for the given package to access the accessory.
         * Will display a system dialog to query the user if permission
         * had not already been given. Result is returned via pi.
         */
    public void requestAccessoryPermission( android.hardware.usb.UsbAccessory accessory, java.lang.String packageName, android.app.PendingIntent pi ) throws android.os.RemoteException;
    /* Grants permission for the given UID to access the device */
    public void grantDevicePermission( android.hardware.usb.UsbDevice device, int uid ) throws android.os.RemoteException;
    /* Grants permission for the given UID to access the accessory */
    public void grantAccessoryPermission( android.hardware.usb.UsbAccessory accessory, int uid ) throws android.os.RemoteException;
    /* Returns true if the USB manager has default preferences or permissions for the package */
    public boolean hasDefaults( java.lang.String packageName ) throws android.os.RemoteException;
    /* Clears default preferences and permissions for the package */
    public void clearDefaults( java.lang.String packageName ) throws android.os.RemoteException;
    /* Sets the current USB function. */
    public void setCurrentFunction( java.lang.String function, boolean makeDefault ) throws android.os.RemoteException;
    /* Sets the file path for USB mass storage backing file. */
    public void setMassStorageBackingFile( java.lang.String path ) throws android.os.RemoteException;
}

然后是另一个包：“android.os”和“ServiceManager.java”：

打包android.os；
导入java.util.Map；
公共最终类服务管理器
{
公共静态IBinder getService（字符串名称）
{
抛出新的RuntimeException（“存根！”）；
}
/**
*在服务中放置一个名为@a name的新@a服务
*经理。
* 
*@param name新服务的名称
*@param service服务对象
*/
公共静态void addService（字符串名称，IBinder服务）
{
抛出新的RuntimeException（“存根！”）；
}
/**
*从中检索名为@a name的现有服务
*服务管理器。非阻塞。
*/
公共静态IBinder checkService（字符串名称）
{
抛出新的RuntimeException（“存根！”）；
}
公共静态字符串[]listServices（）引发RemoteException
{
抛出新的RuntimeException（“存根！”）；
}
/**
*仅在首次引入流程时才调用此函数
*由活动管理器启动和绑定。进程中只有一个线程
*在那个时候，没有进行锁定。
* 
*@param cache服务引用的缓存
*@隐藏
*/
公共静态void initServiceCache（映射缓存）
{
抛出新的RuntimeException（“存根！”）；
}
}

请注意，这些类的接口可能会随着Android版本的不同而变化。我的版本是4.0.3。 所以如果你有另一个版本的Androi

package android.os;

import java.util.Map;

public final class ServiceManager
{
    public static IBinder getService( String name )
    {
        throw new RuntimeException( "Stub!" );
    }

    /**
     * Place a new @a service called @a name into the service
     * manager.
     * 
     * @param name the name of the new service
     * @param service the service object
     */
    public static void addService( String name, IBinder service )
    {
        throw new RuntimeException( "Stub!" );
    }

    /**
     * Retrieve an existing service called @a name from the
     * service manager.  Non-blocking.
     */
    public static IBinder checkService( String name )
    {
        throw new RuntimeException( "Stub!" );
    }

    public static String[] listServices() throws RemoteException
    {
        throw new RuntimeException( "Stub!" );
    }

    /**
     * This is only intended to be called when the process is first being brought
     * up and bound by the activity manager. There is only one thread in the process
     * at that time, so no locking is done.
     * 
     * @param cache the cache of service references
     * @hide
     */
    public static void initServiceCache( Map<String, IBinder> cache )
    {
        throw new RuntimeException( "Stub!" );
    }
}

import java.util.HashMap;
import java.util.Iterator;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.hardware.usb.IUsbManager;
import android.hardware.usb.UsbDevice;
import android.hardware.usb.UsbManager;
import android.os.IBinder;
import android.os.ServiceManager;

public class LaunchReceiver extends BroadcastReceiver
{
    public void onReceive( Context context, Intent intent )
    {
        String action = intent.getAction();
        if( action != null && action.equals( Intent.ACTION_BOOT_COMPLETED ) )
        {
            try
            {
                PackageManager pm = context.getPackageManager();
                ApplicationInfo ai = pm.getApplicationInfo( YOUR_APP_PACKAGE_NAMESPACE, 0 );
                if( ai != null )
                {
                    UsbManager manager = (UsbManager) context.getSystemService( Context.USB_SERVICE );
                    IBinder b = ServiceManager.getService( Context.USB_SERVICE );
                    IUsbManager service = IUsbManager.Stub.asInterface( b );

                    HashMap<String, UsbDevice> deviceList = manager.getDeviceList();
                    Iterator<UsbDevice> deviceIterator = deviceList.values().iterator();
                    while( deviceIterator.hasNext() )
                    {
                            UsbDevice device = deviceIterator.next();
                            if( device.getVendorId() == 0x0403 )
                            {
                                service.grantDevicePermission( device, ai.uid );
                                service.setDevicePackage( device, YOUR_APP_PACKAGE_NAMESPACE );
                            }
                    }
                }
            }
            catch( Exception e )
            {
                trace( e.toString() );
            }
        }
    }
}

<uses-permission android:name="android.permission.MANAGE_USB" />

public interface IUsbManager extends android.os.IInterface
{
/** Local-side IPC implementation stub class. */
public static abstract class Stub extends android.os.Binder implements android.hardware.usb.IUsbManager {
    private static final java.lang.String DESCRIPTOR = "android.hardware.usb.IUsbManager";

    /** Construct the stub at attach it to the interface. */
    public Stub()         {
        throw new RuntimeException( "Stub!" );
    }

    /**
     * Cast an IBinder object into an android.hardware.usb.IUsbManager
     * interface, generating a proxy if needed.
     */
    public static android.hardware.usb.IUsbManager asInterface( android.os.IBinder obj) {
        throw new RuntimeException( "Stub!" );
    }

    @Override
    public android.os.IBinder asBinder() {
        throw new RuntimeException( "Stub!" );
    }

    @Override
    public boolean onTransact(int code, android.os.Parcel data, android.os.Parcel reply, int flags) throws android.os.RemoteException {
        throw new RuntimeException( "Stub!" );
    }

    static final int TRANSACTION_getDeviceList = (android.os.IBinder.FIRST_CALL_TRANSACTION + 0);
    static final int TRANSACTION_openDevice = (android.os.IBinder.FIRST_CALL_TRANSACTION + 1);
    static final int TRANSACTION_getCurrentAccessory = (android.os.IBinder.FIRST_CALL_TRANSACTION + 2);
    static final int TRANSACTION_openAccessory = (android.os.IBinder.FIRST_CALL_TRANSACTION + 3);
    static final int TRANSACTION_setDevicePackage = (android.os.IBinder.FIRST_CALL_TRANSACTION + 4);
    static final int TRANSACTION_setAccessoryPackage = (android.os.IBinder.FIRST_CALL_TRANSACTION + 5);
    static final int TRANSACTION_hasDevicePermission = (android.os.IBinder.FIRST_CALL_TRANSACTION + 6);
    static final int TRANSACTION_hasAccessoryPermission = (android.os.IBinder.FIRST_CALL_TRANSACTION + 7);
    static final int TRANSACTION_requestDevicePermission = (android.os.IBinder.FIRST_CALL_TRANSACTION + 8);
    static final int TRANSACTION_requestAccessoryPermission = (android.os.IBinder.FIRST_CALL_TRANSACTION + 9);
    static final int TRANSACTION_grantDevicePermission = (android.os.IBinder.FIRST_CALL_TRANSACTION + 10);
    static final int TRANSACTION_grantAccessoryPermission = (android.os.IBinder.FIRST_CALL_TRANSACTION + 11);
    static final int TRANSACTION_hasDefaults = (android.os.IBinder.FIRST_CALL_TRANSACTION + 12);
    static final int TRANSACTION_clearDefaults = (android.os.IBinder.FIRST_CALL_TRANSACTION + 13);
    static final int TRANSACTION_setCurrentFunction = (android.os.IBinder.FIRST_CALL_TRANSACTION + 14);
    static final int TRANSACTION_setMassStorageBackingFile = (android.os.IBinder.FIRST_CALL_TRANSACTION + 15);
    static final int TRANSACTION_allowUsbDebugging = (android.os.IBinder.FIRST_CALL_TRANSACTION + 16);
    static final int TRANSACTION_denyUsbDebugging = (android.os.IBinder.FIRST_CALL_TRANSACTION + 17);
}

/* Returns a list of all currently attached USB devices */
public void getDeviceList(android.os.Bundle devices)
        throws android.os.RemoteException;

/*
 * Returns a file descriptor for communicating with the USB device. The
 * native fd can be passed to usb_device_new() in libusbhost.
 */
public android.os.ParcelFileDescriptor openDevice(
        java.lang.String deviceName) throws android.os.RemoteException;

/* Returns the currently attached USB accessory */
public android.hardware.usb.UsbAccessory getCurrentAccessory()
        throws android.os.RemoteException;

/*
 * Returns a file descriptor for communicating with the USB accessory. This
 * file descriptor can be used with standard Java file operations.
 */
public android.os.ParcelFileDescriptor openAccessory(
        android.hardware.usb.UsbAccessory accessory)
        throws android.os.RemoteException;

/*
 * Sets the default package for a USB device (or clears it if the package
 * name is null)
 */
public void setDevicePackage(android.hardware.usb.UsbDevice device,
        java.lang.String packageName, int userId)
        throws android.os.RemoteException;

/*
 * Sets the default package for a USB accessory (or clears it if the package
 * name is null)
 */
public void setAccessoryPackage(
        android.hardware.usb.UsbAccessory accessory,
        java.lang.String packageName, int userId)
        throws android.os.RemoteException;

/* Returns true if the caller has permission to access the device. */
public boolean hasDevicePermission(android.hardware.usb.UsbDevice device)
        throws android.os.RemoteException;

/* Returns true if the caller has permission to access the accessory. */
public boolean hasAccessoryPermission(
        android.hardware.usb.UsbAccessory accessory)
        throws android.os.RemoteException;

/*
 * Requests permission for the given package to access the device. Will
 * display a system dialog to query the user if permission had not already
 * been given.
 */
public void requestDevicePermission(android.hardware.usb.UsbDevice device,
        java.lang.String packageName, android.app.PendingIntent pi)
        throws android.os.RemoteException;

/*
 * Requests permission for the given package to access the accessory. Will
 * display a system dialog to query the user if permission had not already
 * been given. Result is returned via pi.
 */
public void requestAccessoryPermission(
        android.hardware.usb.UsbAccessory accessory,
        java.lang.String packageName, android.app.PendingIntent pi)
        throws android.os.RemoteException;

/* Grants permission for the given UID to access the device */
public void grantDevicePermission(android.hardware.usb.UsbDevice device,
        int uid) throws android.os.RemoteException;

/* Grants permission for the given UID to access the accessory */
public void grantAccessoryPermission(
        android.hardware.usb.UsbAccessory accessory, int uid)
        throws android.os.RemoteException;

/*
 * Returns true if the USB manager has default preferences or permissions
 * for the package
 */
public boolean hasDefaults(java.lang.String packageName, int userId)
        throws android.os.RemoteException;

/* Clears default preferences and permissions for the package */
public void clearDefaults(java.lang.String packageName, int userId)
        throws android.os.RemoteException;

/* Sets the current USB function. */
public void setCurrentFunction(java.lang.String function,
        boolean makeDefault) throws android.os.RemoteException;

/* Sets the file path for USB mass storage backing file. */
public void setMassStorageBackingFile(java.lang.String path)
        throws android.os.RemoteException;

/*
 * Allow USB debugging from the attached host. If alwaysAllow is true, add
 * the the public key to list of host keys that the user has approved.
 */
public void allowUsbDebugging(boolean alwaysAllow,
        java.lang.String publicKey) throws android.os.RemoteException;

/* Deny USB debugging from the attached host */
public void denyUsbDebugging() throws android.os.RemoteException;
}

...
service.setDevicePackage( usbDevice, YOUR_APP_PACKAGE_NAMESPACE, ai.uid ); 
....

public void onStart() {
    super.onStart();
    mPermissionGranted = true;

    finish();
}

<settings>
<preference package="<PACKAGE NAME OF APP YOU WANT TO START ON CONNECTIONCTION>">
    <usb-accessory manufacturer="<NAME OF MANUFECTURER LIKE ONE REGISTERED IN meta-data in the manifest>" model="<MODEL NAME LIKE ONE REGISTERED IN meta-data in the manifest>" version="<VERSION LIKE ONE REGISTERED IN meta-data in the manifest>" />
</preference>

 <?xml version='1.0' encoding='utf-8' standalone='yes' ?>
<settings>
<preference package="com.embeddedartists.aoa">
    <usb-accessory manufacturer="Embedded Artists AB" model="AOA Board - Basic" version="1.0" />
</preference>

<manifest>
    <uses-feature android:name="android.hardware.usb.host" />
    <activity
        ...
        android:directBootAware="true">

        <intent-filter>
            <action android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED" />
        </intent-filter>

        <meta-data android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED"
        android:resource="@xml/device_filter" />

    </activity>
</manifest>

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <usb-device vendor-id="1234" product-id="5678" />
</resources>