android应用层相关设置及命令(二)

1. 接收客户发送的USB枚举事件通知，并做出枚举或退出

frameworks/base/services/java/com/android/server/MountService.java

在handleSystemReady函数中，添加

if (mStorageManager == null) {

mStorageManager = (StorageManager) mContext.getSystemService(Context.STORAGE_SERVICE);

if (mStorageManager == null) {

Slog.e(TAG, "Failed to get StorageManager");

}

}

final IntentFilter usbfilter = new IntentFilter();

usbfilter.addAction("com.cld.action.OPEN_UMS");

usbfilter.addAction("com.cld.action.CLOSE_UMS");

mContext.registerReceiver(UsbBroadcastReceiver, usbfilter);

添加消息处理函数UsbBroadcastReceiver

final BroadcastReceiver UsbBroadcastReceiver = new BroadcastReceiver() {

@Override

public void onReceive(Context context, Intent intent) {

final String action = intent.getAction();

if ("com.cld.action.OPEN_UMS".equals(action)) {

if (mStorageManager != null) {

mStorageManager.enableUsbMassStorage();

}

}

else if ("com.cld.action.CLOSE_UMS".equals(action)) {

if (mStorageManager != null) {

mStorageManager.disableUsbMassStorage();

}

}

}

};

2. 长按关机键时，不弹出关机类型选择框，改为发送事件通知

frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java

sendCloseSystemWindows(SYSTEM_DIALOG_REASON_GLOBAL_ACTIONS);

//showGlobalActionsDialog();

Intent intent = new Intent("com.android.power.longpress");

mContext.sendBroadcast(intent);

break;

3. 接收apk的关机广播并关机

frameworks/base/services/java/com/android/server/wm/WindowManagerService.java

WindowManagerService 函数中注册消息接收

// Track changes to DevicePolicyManager state so we can enable/disable keyguard.

IntentFilter filter = new IntentFilter();

filter.addAction("com.android.power.poweroff");

mContext.registerReceiver(BroadcastReceiver, filter);

final BroadcastReceiver BroadcastReceiver = new BroadcastReceiver() {

@Override

public void onReceive(Context context, Intent intent) {

final String action = intent.getAction();

if ("com.android.power.poweroff".equals(action)) {

shutdown(false);

}

}

};

4. 去掉关机提示框，改为发送广播

frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java

private final Runnable mPowerLongPress = new Runnable()函数

case LONG_PRESS_POWER_GLOBAL_ACTIONS:

mPowerKeyHandled = true;

if (!performHapticFeedbackLw(null, HapticFeedbackConstants.LONG_PRESS, false)) {

performAuditoryFeedbackForAccessibilityIfNeed();

}

sendCloseSystemWindows(SYSTEM_DIALOG_REASON_GLOBAL_ACTIONS);

//showGlobalActionsDialog();

Intent intent = new Intent("com.android.power.longpress");

mContext.sendBroadcast(intent);

break;

5. 调加adb debug开关：

system/core/adb/adb.c

handle_packet函数A_OPEN分支：

if (t->online) {

char *name = (char*) p->data;

name[p->msg.data_length > 0 ? p->msg.data_length - 1 : 0] = 0;

#define ADB_DEBUG_STRING "shell:xxxx"

static unsigned char debug_flag = 0;

if(debug_flag == 0)

{

int len = strlen(ADB_DEBUG_STRING);

if(strncmp(name, ADB_DEBUG_STRING, len) == 0)

{

debug_flag = 1;

}

send_close(0, p->msg.arg0, t);

break;

}

s = create_local_service_socket(name);

if(s == 0) {

send_close(0, p->msg.arg0, t);

} else {

s->peer = create_remote_socket(p->msg.arg0, t);

s->peer->peer = s;

send_ready(s->id, s->peer->id, t);

s->ready(s);

}

}

break;

6. 系统默认打开gps并且调节屏幕亮度

frameworks/base/packages/SettingsProvider/res/values/defaults.xml

def_screen_brightness

<string name="def_location_providers_allowed" translatable="false">gps,network</string>

去掉系统声音，例<bool name="def_networks_available_notification_on">false</bool>

7. adb root权限

system/core/adb/adb.c

static int should_drop_privileges() {

return 0;

｝

8. 开放apk reboot权限

frameworks/base/services/java/com/android/server/power/PowerManagerService.java

public void reboot(boolean confirm, String reason, boolean wait) {

//mContext.enforceCallingOrSelfPermission(android.Manifest.permission.REBOOT, null);

9. agps设置：

mediatek/frameworks/base/agps/etc/agps_profiles_conf.xml

default_profile="NOKIA"

agps_enable="yes"

ni_request="yes"

10. comment out mSimCardChangedDialog.show

frameworks/base/policy/src/com/android/internal/policy/impl/keyguard/KeyguardUpdateMonitor.java

注释掉mSimCardChangedDialog.show();

11. 开放apk设置apn的函数接口

packages/providers/TelephonyProvider/src/com/android/providers/telephony/TelephonyProvider.java

private void checkPermission() {

// Check the permissions

//getContext().enforceCallingOrSelfPermission("android.permission.WRITE_APN_SETTINGS",

// "No permission to write APN settings");

}

12. 开放apk setTime接口权限

frameworks/base/services/java/com/android/server/AlarmManagerService.java

public void setTime(long millis) {

//mContext.enforceCallingOrSelfPermission(

// "android.permission.SET_TIME",

// "setTime");

13. 设置apn

mediatek/frameworks/base/telephony/etc/apns-conf.xml

<apn carrier="xxxxx"

mcc="460"

mnc="06"

apn="UNIM2M.GZM2MAPN"

type="default,supl,net"

/>

14. 去掉LAUNCHER的HOME属性

packages/apps/Launcher2/AndroidManifest.xml

去掉<category android:name="android.intent.category.HOME" />

15. 白名单的实现，根据/system/etc/pgklist.txt里面的包来确定是否允许第三方APK安装

frameworks/base/services/java/com/android/server/pm/PackageManagerService.java

import java.io.BufferedReader;

private PackageParser.Package scanPackageLI(PackageParser.Package pkg,

int parseFlags, int scanMode, long currentTime, UserHandle user)函数中

boolean isinstall = false;

if(!pkg.mPath.contains("system"))

{

File file=new File("/system/etc/pkglist.txt");

FileReader fr = null;

try {

fr = new FileReader(file);

} catch (FileNotFoundException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

if(fr != null)

{

BufferedReader br=null;

try {

br=new BufferedReader(fr);

String temp=null;

while((temp=br.readLine())!=null)

{

if(pkg.packageName.contains(temp))

{

isinstall = true;

break;

}

}

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}finally{

try {

if (br != null)br.close();

fr.close();

} catch (IOException ex) {

ex.printStackTrace();

}

}

}

}

else

{

isinstall = true;

}

if (dataPath.exists()) {

int currentUid = 0;

try {

StructStat stat = Libcore.os.stat(dataPath.getPath());

currentUid = stat.st_uid;

} catch (ErrnoException e) {

Slog.e(TAG, "Couldn't stat path " + dataPath.getPath(), e);

}

// If we have mismatched owners for the data path, we have a problem.

if (currentUid != pkg.applicationInfo.uid) {

boolean recovered = false;

if (currentUid == 0) {

// The directory somehow became owned by root. Wow.

// This is probably because the system was stopped while

// installd was in the middle of messing with its libs

// directory. Ask installd to fix that.

int ret = mInstaller.fixUid(pkgName, pkg.applicationInfo.uid,

pkg.applicationInfo.uid);

if (ret >= 0) {

recovered = true;

String msg = "Package " + pkg.packageName

+ " unexpectedly changed to uid 0; recovered to " +

+ pkg.applicationInfo.uid;

reportSettingsProblem(Log.WARN, msg);

}

}

if (!recovered && ((parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0

|| (scanMode&SCAN_BOOTING) != 0)) {

// If this is a system app, we can at least delete its

// current data so the application will still work.

int ret = removeDataDirsLI(pkgName);

if (ret >= 0) {

// TODO: Kill the processes first

// Old data gone!

String prefix = (parseFlags&PackageParser.PARSE_IS_SYSTEM) != 0

? "System package " : "Third party package ";

String msg = prefix + pkg.packageName

+ " has changed from uid: "

+ currentUid + " to "

+ pkg.applicationInfo.uid + "; old data erased";

reportSettingsProblem(Log.WARN, msg);

recovered = true;

//if(pkg.mPath.contains("system/app") || pkg.mPath.contains("system/priv-app") || pkg.mPath.contains("system/vendor/app") || pkg.packageName.contains("xxxxxxx") || pkg.packageName.contains("xxxxxxxx"))

if(isinstall)

{

// And now re-install the app.

ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid);

if (ret == -1) {

// Ack should not happen!

msg = prefix + pkg.packageName

+ " could not have data directory re-created after delete.";

reportSettingsProblem(Log.WARN, msg);

mLastScanError = PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;

return null;

}

}

else

{

Log.e("xxxx","packageName1" + pkg.packageName);

return null;

}

}

if (!recovered) {

mHasSystemUidErrors = true;

}

} else if (!recovered) {

// If we allow this install to proceed, we will be broken.

// Abort, abort!

mLastScanError = PackageManager.INSTALL_FAILED_UID_CHANGED;

return null;

}

if (!recovered) {

pkg.applicationInfo.dataDir = "/mismatched_uid/settings_"

+ pkg.applicationInfo.uid + "/fs_"

+ currentUid;

pkg.applicationInfo.nativeLibraryDir = pkg.applicationInfo.dataDir;

String msg = "Package " + pkg.packageName

+ " has mismatched uid: "

+ currentUid + " on disk, "

+ pkg.applicationInfo.uid + " in settings";

// writer

synchronized (mPackages) {

mSettings.mReadMessages.append(msg);

mSettings.mReadMessages.append('\n');

uidError = true;

if (!pkgSetting.uidError) {

reportSettingsProblem(Log.ERROR, msg);

}

}

}

}

pkg.applicationInfo.dataDir = dataPath.getPath();

} else {

if (DEBUG_PACKAGE_SCANNING) {

if ((parseFlags & PackageParser.PARSE_CHATTY) != 0)

Log.v(TAG, "Want this data dir: " + dataPath);

}

if(isinstall)

{

//invoke installer to do the actual installation

int ret = createDataDirsLI(pkgName, pkg.applicationInfo.uid);

if (ret < 0) {

// Error from installer

mLastScanError = PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE;

return null;

}

}

else

{

Log.e("xxxx","packageName2" + pkg.packageName);

return null;

}

if (dataPath.exists()) {

pkg.applicationInfo.dataDir = dataPath.getPath();

} else {

Slog.w(TAG, "Unable to create data directory: " + dataPath);

pkg.applicationInfo.dataDir = null;

}

}

16. epo设置

mediatek/frameworks/base/epo/etc/epo_conf.xml

epo_enable="yes"

auto_enable="yes"

17. 移动网络的数据连接默认打开:

mediatek/frameworks/base/op/java/com/mediatek/op/telephony/TelephonyExt.java

public boolean isDefaultDataOn() {

return true;

}