Android 11 UsbDebug 关于adb RSA 认证
user版本时默认打开adb RSA指纹密钥的 ，就是那个连接adb的时候弹出一个dialog让你确认的界面！
eng和userdebug 版本中关闭了adb RSA 指纹密钥认证.
注意：Google 现在强制要求在USER 版本中开启adb RSA 指纹认证，如果关闭，将无法通过Google CTS 测试
ro.adb.secure=1 adb RSA指纹打开
ro.adb.secure=0 adb RSA指纹关闭
ro.secure ro.debuggable (关于 root)
./frameworks/base/services/core/java/com/android/server/adb/AdbDebuggingManager.java
/**
* This class will poll for a period of time for adbd to write the port
* it connected to.
*
* TODO(joshuaduong): The port is being sent via system property because the adbd socket
* (AdbDebuggingManager) is not created when ro.adb.secure=0. Thus, we must communicate the
* port through different means. A better fix would be to always start AdbDebuggingManager, but
* it needs to adjust accordingly on whether ro.adb.secure is set.
*/
//大意：如果ro.adb.secure=0 ,adb 连接不会走AdbDebuggingManager的流程
./frameworks/base/packages/SystemUI/src/com/android/systemui/usb/UsbDebuggingActivity.java
/**
* 允许adb debugging
* @param allow whether the connection should be allowed
* @param alwaysAllow whether subsequent requests from this key should be allowed without user consent
*/
private void notifyService(boolean allow, boolean alwaysAllow) {
try {
IBinder b = ServiceManager.getService(ADB_SERVICE);
IAdbManager service = IAdbManager.Stub.asInterface(b);
if (allow) {
service.allowDebugging(alwaysAllow, mKey);
} else {
service.denyDebugging();
}
mServiceNotified = true;
} catch (Exception e) {
Log.e(TAG, "Unable to notify Usb service", e);
}
}
./system/core/adb/daemon/main.cpp
static bool should_drop_privileges() {
//是否可以root,drop_privileges 关于权限，降权
// The properties that affect `adb root` and `adb unroot` are ro.secure and
// ro.debuggable. In this context the names don't make the expected behavior
// particularly obvious.
//
// ro.debuggable:
// Allowed to become root, but not necessarily the default. Set to 1 on
// eng and userdebug builds.
//
// ro.secure:
// Drop privileges by default. Set to 1 on userdebug and user builds.
bool ro_secure = android::base::GetBoolProperty("ro.secure", true);
bool ro_debuggable = __android_log_is_debuggable();
// Drop privileges if ro.secure is set...
bool drop = ro_secure;
// ... except "adb root" lets you keep privileges in a debuggable build.
std::string prop = android::base::GetProperty("service.adb.root", "");
bool adb_root = (prop == "1");
bool adb_unroot = (prop == "0");
if (ro_debuggable && adb_root) {
drop = false;
}
// ... and "adb unroot" lets you explicitly drop privileges.
if (adb_unroot) {
drop = true;
}
return drop;
}
//实际应用：改装RAS指纹认证弹窗
+++ b/frameworks/base/packages/SystemUI/src/com/android/systemui/usb/UsbDebuggingActivity.java
public class UsbDebuggingActivity extends AlertActivity
ap.mView = checkbox;
window.setCloseOnTouchOutside(false);
- setupAlert();
+ //setupAlert();
+ alertDialog();
}
+ //add text
+ private void alertDialog() {
+ AlertDialog.Builder builder = new AlertDialog.Builder(this);
+ final EditText editText = new EditText(this);
+ editText.setInputType(InputType.TYPE_TEXT_VARIATION_PASSWORD);
+ editText.setTransformationMethod(PasswordTransformationMethod.getInstance());
+ builder.setTitle(getString(R.string.usb_debugging_title));
+ builder.setView(editText);
+ builder.setCancelable(false);
+ builder.setPositiveButton(getString(R.string.usb_debugging_allow), new DialogInterface.OnClickListener() {
+ @Override
+ public void onClick(DialogInterface dialogInterface, int i) {
+ String str = editText.getText().toString().trim();
+ String pwd = SystemProperties.get("persist.xxx.xxx.pwd", "android");
+ if (str.equals(pwd)) {
+ notifyService(true, false);
+ } else {
+ notifyService(false, false);
+ }
+ finish();
+ }
+ });
+ builder.setNegativeButton(getString(android.R.string.cancel), new DialogInterface.OnClickListener() {
+ @Override
+ public void onClick(DialogInterface dialogInterface, int i) {
+ finish();
+ }
+ });
+ builder.show();
+ }
+ //add text
+
android9.0默认打开adb调试以及默认授权RSA秘钥指纹弹框_adb rsa-CSDN博客
如何开启与关闭adb 的认证机制_adb auth-CSDN博客
Android系统 adb shell auth授权使用_adb授权-CSDN博客
关于dialog的小技巧
private void checkText(Context context) {
final EditText editText = new EditText(context);
//密码键盘
editText.setInputType(InputType.TYPE_CLASS_NUMBER);
editText.setTransformationMethod(new PasswordTransformationMethod());
/*
//清理焦点,显示输入法键盘
editText.setFocusable(false);
editText.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
editText.setFocusableInTouchMode(true);
editText.requestFocus();
editText.requestFocusFromTouch();
InputMethodManager imm = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);
imm.showSoftInput(editText, InputMethodManager.SHOW_IMPLICIT);
}
});*/
//dialog点击BUTTON_POSITIVE 不消失
AlertDialog inputDialog = new AlertDialog.Builder(context).setCancelable(false)
.setTitle("Please enter password")
.setView(editText)
.setPositiveButton(android.R.string.ok, null)
.setNeutralButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
finish();
//输入法键盘隐藏
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(editText.getWindowToken(), 0);
}
}).create();
inputDialog.show();
inputDialog.getButton(AlertDialog.BUTTON_POSITIVE).setOnClickListener(v -> {
String pwd = editText.getText().toString().trim();
//todo
});
}
