android 安全设置相关at流程分析

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mReceiver = new RILReceiver() 

RILReceiver对像的 run()中 

InputStream is = mSocket.getInputStream(); 

LocalSocket 

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==============================================================================

GsmSimCard.java (frameworks\base\telephony\java\com\android\internal\telephony\gsm)

public void handleMessage(Message msg)

判断 msg.what

case EVENT_SIM_READY:

phone.mCM.getSimStatus(obtainMessage(EVENT_GET_SIM_STATUS_DONE));

case EVENT_SIM_LOCKED_OR_ABSENT:

phone.mCM.getSimStatus(obtainMessage(EVENT_GET_SIM_STATUS_DONE));

case EVENT_PINPUK_DONE:

// a PIN/PUK/PIN2/PUK2/Network Personalization

phone.mCM.getSimStatus(obtainMessage(EVENT_REPOLL_STATUS_DONE, ar.userObj));

GsmSimCard(GSMPhone phone)

phone.mCM.registerForSIMReady(this, EVENT_SIM_READY, null); 

updateStateProperty(); 

GsmSimCard.java (frameworks\base\telephony\java\com\android\internal\telephony\gsm) 

ServiceStateTracker.java (frameworks\base\telephony\java\com\android\internal\telephony\gsm)

SIMRecords.java (frameworks\base\telephony\java\com\android\internal\telephony\gsm)

public abstract class BaseCommands implements CommandsInterface

BaseCommands 类实现了 CommandsInterface接口

public void registerForSIMReady(Handler h, int what, Object obj)

{

Registrant r = new Registrant (h, what, obj);

synchronized (mStateMonitor) {

mSIMReadyRegistrants.add(r)

if (mState.isSIMReady()) {

r.notifyRegistrant(new AsyncResult(null, null, null));

}

}

}

GsmSimCard(GSMPhone phone)

phone.mCM.registerForSIMReady(this, EVENT_SIM_READY, null);

static void pollSIMState (void *param)

switch(getSIMStatus()) {

case RIL_SIM_ABSENT:

case RIL_SIM_PIN:

case RIL_SIM_PUK:

case RIL_SIM_NETWORK_PERSONALIZATION:

default:

setRadioState(RADIO_STATE_SIM_LOCKED_OR_ABSENT);

return;

case RIL_SIM_NOT_READY:

RIL_requestTimedCallback (pollSIMState, NULL, &TIMEVAL_SIMPOLL);

return;

case RIL_SIM_READY:

setRadioState(RADIO_STATE_SIM_READY);

return;

}

//Reference-ril.c (hardware\ril\reference-ril)

static void setRadioState(RIL_RadioState newState) 

如果RadioState 为 RADIO_STATE_SIM_READY 执行

onSIMReady();

如果RadioState 为 RADIO_STATE_SIM_NOT_READY 执行：

onRadioPowerOn();

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获取sim卡状态流程： 

getSIMStatus()

CommandsInterface.java (frameworks\base\telephony\java\com\android\internal\telephony\gsm)

接口 public interface CommandsInterface 中有

void getSimStatus(Message result);

RIL.java (frameworks\base\telephony\java\com\android\internal\telephony\gsm)

public final class RIL extends BaseCommands implements CommandsInterface

RIL 类实现了 CommandsInterface 接口

getSimStatus(Message result)

RILRequest rr = RILRequest.obtain(RIL_REQUEST_GET_SIM_STATUS, result);

send(rr);

rild 程序流程 

static void processCommandsCallback(int fd, short flags, void *param)

processCommandBuffer(p_record, recordlen);

status = p.readInt32(&request);

pRI->pCI = &(s_commands[request]); 

pRI->pCI->dispatchFunction(p, pRI);

因为有 {RIL_REQUEST_GET_SIM_STATUS,dispatchVoid, responseInts},

所以执行的是 Ril.cpp (hardware\ril\libril) 文件中的函数：

static void dispatchVoid (Parcel& p, RequestInfo *pRI)

s_callbacks.onRequest(pRI->pCI->requestNumber, NULL, 0, pRI);

//Reference-ril.c (hardware\ril\reference-ril):

case RIL_REQUEST_GET_SIM_STATUS：

getSIMStatus()

err = at_send_command_singleline("AT CPIN?", " CPIN:", &p_response);

return ret;

//Ril.cpp (hardware\ril\libril)

RIL_onRequestComplete(t, RIL_E_SUCCESS, &simStatus, sizeof(simStatus));

sendResponse(p);

sendResponseRaw(p.data(), p.dataSize());

blockingWrite(fd, data, dataSize);

==========================================================================================

pin码验证流程：

KeyguardViewManager.java (frameworks\policies\base\phone\com\android\internal\policy\impl

show()

mKeyguardView = mKeyguardViewProperties.createKeyguardView(mContext, mUpdateMonitor, this);

new LockPatternKeyguardView(context, updateMonitor,mLockPatternUtils, controller);

mUnlockScreen = createUnlockScreenFor(unlockMode);

createUnlockScreenFor(UnlockMode unlockMode)

如果 unlockMode == UnlockMode.SimPin

那么 new SimUnlockScreen(mContext,mUpdateMonitor,mKeyguardScreenCallback);

updateScreen(mMode);

由 SimUnlockScreen 类的

public void onClick(View v)

mOkButton 执行的是 checkPin()

new CheckSimPin(mPinText.getText().toString())

//PhoneInterfaceManager.java (packages\apps\phone\src\com\android\phone) 

supplyPin(String pin)

return checkSimPin.checkPin(pin);

mSimCard.supplyPin(pin, callback);

//private final SimCard mSimCard;

//因为类 GsmSimCard 实现了 SimCard 接口所以实际执行的是：

//GsmSimCard.java (frameworks\base\telephony\java\com\android\internal\telephony\gsm)文件中的

public void supplyPin (String pin, Message onComplete)

phone.mCM.supplySimPin(pin,obtainMessage(EVENT_PINPUK_DONE, onComplete));

//RIL.java (frameworks\base\telephony\java\com\android\internal\telephony\gsm)

public void supplySimPin(String pin, Message result)

RILRequest rr = RILRequest.obtain(RIL_REQUEST_ENTER_SIM_PIN, result);

send(rr); //通过socket 向 rild 发送 RIL_REQUEST_ENTER_SIM_PIN 请求

rild端处理流程： 

static void processCommandsCallback(int fd, short flags, void *param)

processCommandBuffer(p_record, recordlen);

status = p.readInt32(&request);

pRI->pCI = &(s_commands[request]); 

pRI->pCI->dispatchFunction(p, pRI);

因为有 {RIL_REQUEST_ENTER_SIM_PIN, dispatchStrings, responseVoid},

所以执行的是 Ril.cpp (hardware\ril\libril) 文件中的函数：

static void dispatchStrings (Parcel &p, RequestInfo *pRI)

s_callbacks.onRequest(pRI->pCI->requestNumber, pStrings, datalen, pRI);

此处的 pRI->pCI->requestNumber 为 RIL_REQUEST_ENTER_SIM_PIN

//Reference-ril.c (hardware\ril\reference-ril)

static void onRequest (int request, void *data, size_t datalen, RIL_Token t)

case RIL_REQUEST_ENTER_SIM_PIN:

requestEnterSimPin(data, datalen, t);

err = at_send_command_singleline(cmd, " CPIN:", &p_response);

err = at_send_command_full (command, SINGLELINE, responsePrefix,...);

err = at_send_command_full_nolock(command, type,responsePrefix,...);

err = writeline (command);

written = write (s_fd, s cur, len - cur);//往串口写数据

RIL_onRequestComplete(t, RIL_E_SUCCESS, NULL, 0);

===========================================================

开启sim卡的pin

EnableSimPinScreen.java

rild端处理流程： 

static void processCommandsCallback(int fd, short flags, void *param)

processCommandBuffer(p_record, recordlen);

status = p.readInt32(&request);

pRI->pCI = &(s_commands[request]); 

pRI->pCI->dispatchFunction(p, pRI);

因为有 {RIL_REQUEST_ENTER_SIM_PIN, dispatchStrings, responseVoid},

所以执行的是 Ril.cpp (hardware\ril\libril) 文件中的函数：

static void dispatchStrings (Parcel &p, RequestInfo *pRI)

s_callbacks.onRequest(pRI->pCI->requestNumber, pStrings, datalen, pRI);

此处的 pRI->pCI->requestNumber 为 RIL_REQUEST_ENTER_SIM_PIN