Merge "Added global retry support" (1ceca0b1) · Commits · e / os / android_frameworks_opt_telephony

src/java/com/android/internal/telephony/RIL.java

+16 −15

Original line number	Diff line number	Diff line
		@@ -7032,7 +7032,8 @@ public class RIL extends BaseCommands implements CommandsInterface {
		public static DataCallResponse convertDataCallResult(Object dcResult) {
		if (dcResult == null) return null;

		int cause, suggestedRetryTime, cid, active, mtu, mtuV4, mtuV6;
		int cause, cid, active, mtu, mtuV4, mtuV6;
		long suggestedRetryTime;
		String ifname;
		int protocolType;
		String[] addresses = null;
		@@ -7113,22 +7114,22 @@ public class RIL extends BaseCommands implements CommandsInterface {
		} else if (dcResult instanceof android.hardware.radio.V1_6.SetupDataCallResult) {
		final android.hardware.radio.V1_6.SetupDataCallResult result =
		(android.hardware.radio.V1_6.SetupDataCallResult) dcResult;
		cause = result.base.cause;
		suggestedRetryTime = result.base.suggestedRetryTime;
		cid = result.base.cid;
		active = result.base.active;
		protocolType = result.base.type;
		ifname = result.base.ifname;
		laList = result.base.addresses.stream().map(la -> createLinkAddressFromString(
		cause = result.cause;
		suggestedRetryTime = result.suggestedRetryTime;
		cid = result.cid;
		active = result.active;
		protocolType = result.type;
		ifname = result.ifname;
		laList = result.addresses.stream().map(la -> createLinkAddressFromString(
		la.address, la.properties, la.deprecationTime, la.expirationTime))
		.collect(Collectors.toList());

		dnses = result.base.dnses.stream().toArray(String[]::new);
		gateways = result.base.gateways.stream().toArray(String[]::new);
		pcscfs = result.base.pcscf.stream().toArray(String[]::new);
		mtu = Math.max(result.base.mtuV4, result.base.mtuV6);
		mtuV4 = result.base.mtuV4;
		mtuV6 = result.base.mtuV6;
		dnses = result.dnses.stream().toArray(String[]::new);
		gateways = result.gateways.stream().toArray(String[]::new);
		pcscfs = result.pcscf.stream().toArray(String[]::new);
		mtu = Math.max(result.mtuV4, result.mtuV6);
		mtuV4 = result.mtuV4;
		mtuV6 = result.mtuV6;
		handoverFailureMode = result.handoverFailureMode;
		} else {
		Rlog.e(RILJ_LOG_TAG, "Unsupported SetupDataCallResult " + dcResult);
		@@ -7182,7 +7183,7 @@ public class RIL extends BaseCommands implements CommandsInterface {

		return new DataCallResponse.Builder()
		.setCause(cause)
		.setSuggestedRetryTime(suggestedRetryTime)
		.setRetryIntervalMillis(suggestedRetryTime)
		.setId(cid)
		.setLinkStatus(active)
		.setProtocolType(protocolType)

src/java/com/android/internal/telephony/RetryManager.java

+75 −61

Original line number	Diff line number	Diff line
		@@ -16,17 +16,22 @@

		package com.android.internal.telephony;

		import android.annotation.NonNull;
		import android.annotation.Nullable;
		import android.compat.annotation.UnsupportedAppUsage;
		import android.content.Context;
		import android.os.Build;
		import android.os.PersistableBundle;
		import android.os.SystemClock;
		import android.os.SystemProperties;
		import android.telephony.Annotation.ApnType;
		import android.telephony.CarrierConfigManager;
		import android.telephony.data.ApnSetting;
		import android.telephony.data.DataCallResponse;
		import android.text.TextUtils;
		import android.util.Pair;

		import com.android.internal.telephony.dataconnection.DataThrottler;
		import com.android.internal.telephony.util.TelephonyUtils;
		import com.android.telephony.Rlog;

		@@ -118,18 +123,18 @@ public class RetryManager {
		private static final long DEFAULT_APN_RETRY_AFTER_DISCONNECT_DELAY = 10000;

		/**
		* The value indicating no retry is needed
		* The value indicating retry should not occur.
		*/
		public static final long NO_RETRY = -1;
		public static final long NO_RETRY = Long.MAX_VALUE;

		/**
		* The value indicating modem did not suggest any retry delay
		* The value indicating network did not suggest any retry delay
		*/
		public static final long NO_SUGGESTED_RETRY_DELAY = -2;
		public static final long NO_SUGGESTED_RETRY_DELAY = DataCallResponse.RETRY_INTERVAL_UNDEFINED;

		/**
		* If the modem suggests a retry delay in the data call setup response, we will retry
		* the current APN setting again. However, if the modem keeps suggesting retrying the same
		* If the network suggests a retry delay in the data call setup response, we will retry
		* the current APN setting again. However, if the network keeps suggesting retrying the same
		* APN setting, we'll fall into an infinite loop. Therefore adding a counter to retry up to
		* MAX_SAME_APN_RETRY times can avoid it.
		*/
		@@ -154,11 +159,6 @@ public class RetryManager {
		*/
		private long mApnRetryAfterDisconnectDelay;

		/**
		* Modem suggested delay for retrying the current APN
		*/
		private long mModemSuggestedDelay = NO_SUGGESTED_RETRY_DELAY;

		/**
		* The counter for same APN retrying. See MAX_SAME_APN_RETRY for the details.
		*/
		@@ -168,13 +168,13 @@ public class RetryManager {
		* Retry record with times in milli-seconds
		*/
		private static class RetryRec {
		RetryRec(int delayTime, int randomizationTime) {
		long mDelayTime;
		long mRandomizationTime;

		RetryRec(long delayTime, long randomizationTime) {
		mDelayTime = delayTime;
		mRandomizationTime = randomizationTime;
		}

		int mDelayTime;
		int mRandomizationTime;
		}

		/**
		@@ -185,6 +185,8 @@ public class RetryManager {
		@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
		private Phone mPhone;

		private final DataThrottler mDataThrottler;

		/**
		* Flag indicating whether retrying forever regardless the maximum retry count mMaxRetryCount
		*/
		@@ -223,19 +225,24 @@ public class RetryManager {
		private int mCurrentApnIndex = -1;

		/**
		* Apn context type. Could be "default, "mms", "supl", etc...
		* Apn context type.
		*/
		@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
		private String mApnType;

		private final @ApnType int apnType;

		/**
		* Retry manager constructor
		* @param phone Phone object
		* @param dataThrottler Data throttler
		* @param apnType APN type
		*/
		public RetryManager(Phone phone, String apnType) {
		public RetryManager(@NonNull Phone phone, @NonNull DataThrottler dataThrottler,
		@ApnType int apnType) {
		mPhone = phone;
		mApnType = apnType;
		mDataThrottler = dataThrottler;
		this.apnType = apnType;
		}

		/**
		@@ -259,7 +266,7 @@ public class RetryManager {
		mConfig = configStr;

		if (!TextUtils.isEmpty(configStr)) {
		int defaultRandomization = 0;
		long defaultRandomization = 0;

		if (VDBG) log("configure: not empty");

		@@ -366,14 +373,14 @@ public class RetryManager {
		if (!TextUtils.isEmpty(s)) {
		String splitStr[] = s.split(":", 2);
		if (splitStr.length == 2) {
		String apnType = splitStr[0].trim();
		String apnTypeStr = splitStr[0].trim();
		// Check if this retry pattern is for the APN we want.
		if (apnType.equals(mApnType)) {
		if (apnTypeStr.equals(ApnSetting.getApnTypeString(apnType))) {
		// Extract the config string. Note that an empty string is valid
		// here, meaning no retry for the specified APN.
		configString = splitStr[1];
		break;
		} else if (apnType.equals(OTHERS_APN_TYPE)) {
		} else if (apnTypeStr.equals(OTHERS_APN_TYPE)) {
		// Extract the config string. Note that an empty string is valid
		// here, meaning no retry for all other APNs.
		otherConfigString = splitStr[1];
		@@ -414,7 +421,7 @@ public class RetryManager {
		* Return the timer that should be used to trigger the data reconnection
		*/
		@UnsupportedAppUsage
		private int getRetryTimer() {
		private long getRetryTimer() {
		int index;
		if (mRetryCount < mRetryArray.size()) {
		index = mRetryCount;
		@@ -422,7 +429,7 @@ public class RetryManager {
		index = mRetryArray.size() - 1;
		}

		int retVal;
		long retVal;
		if ((index >= 0) && (index < mRetryArray.size())) {
		retVal = mRetryArray.get(index).mDelayTime + nextRandomizationTime(index);
		} else {
		@@ -444,13 +451,13 @@ public class RetryManager {
		Pair<Boolean, Integer> retVal;
		try {
		value = Integer.parseInt(stringValue);
		retVal = new Pair<Boolean, Integer>(validateNonNegativeInt(name, value), value);
		retVal = new Pair<>(validateNonNegativeInt(name, value), value);
		} catch (NumberFormatException e) {
		Rlog.e(LOG_TAG, name + " bad value: " + stringValue, e);
		retVal = new Pair<Boolean, Integer>(false, 0);
		retVal = new Pair<>(false, 0);
		}
		if (VDBG) {
		log("parseNonNetativeInt: " + name + ", " + stringValue + ", "
		log("parseNonNegativeInt: " + name + ", " + stringValue + ", "
		+ retVal.first + ", " + retVal.second);
		}
		return retVal;
		@@ -462,7 +469,7 @@ public class RetryManager {
		* @param value Value
		* @return Pair.first
		*/
		private boolean validateNonNegativeInt(String name, int value) {
		private boolean validateNonNegativeInt(String name, long value) {
		boolean retVal;
		if (value < 0) {
		Rlog.e(LOG_TAG, name + " bad value: is < 0");
		@@ -478,13 +485,24 @@ public class RetryManager {
		* Return next random number for the index
		* @param index Retry index
		*/
		private int nextRandomizationTime(int index) {
		int randomTime = mRetryArray.get(index).mRandomizationTime;
		private long nextRandomizationTime(int index) {
		long randomTime = mRetryArray.get(index).mRandomizationTime;
		if (randomTime == 0) {
		return 0;
		} else {
		return mRng.nextInt(randomTime);
		return mRng.nextInt((int) randomTime);
		}
		}

		private long getNetworkSuggestedRetryDelay() {
		long retryElapseTime = mDataThrottler.getRetryTime(apnType);
		if (retryElapseTime == NO_RETRY \|\| retryElapseTime == NO_SUGGESTED_RETRY_DELAY) {
		return retryElapseTime;
		}

		// The time from data throttler is system's elapsed time. We need to return the delta. If
		// less than 0, then return 0 (i.e. retry immediately).
		return Math.max(0, retryElapseTime - SystemClock.elapsedRealtime());
		}

		/**
		@@ -497,11 +515,17 @@ public class RetryManager {
		return null;
		}

		// If the modem had suggested a retry delay, we should retry the current APN again
		long networkSuggestedRetryDelay = getNetworkSuggestedRetryDelay();
		if (networkSuggestedRetryDelay == NO_RETRY) {
		log("Network suggested no retry.");
		return null;
		}

		// If the network had suggested a retry delay, we should retry the current APN again
		// (up to MAX_SAME_APN_RETRY times) instead of getting the next APN setting from
		// our own list. If the APN waiting list has been reset before a setup data responses
		// arrive (i.e. mCurrentApnIndex=-1), then ignore the modem suggested retry.
		if (mCurrentApnIndex != -1 && mModemSuggestedDelay != NO_SUGGESTED_RETRY_DELAY
		// arrive (i.e. mCurrentApnIndex=-1), then ignore the network suggested retry.
		if (mCurrentApnIndex != -1 && networkSuggestedRetryDelay != NO_SUGGESTED_RETRY_DELAY
		&& mSameApnRetryCount < MAX_SAME_APN_RETRY) {
		mSameApnRetryCount++;
		return mWaitingApns.get(mCurrentApnIndex);
		@@ -542,17 +566,20 @@ public class RetryManager {
		return NO_RETRY;
		}

		if (mModemSuggestedDelay == NO_RETRY) {
		log("Modem suggested not retrying.");
		long networkSuggestedDelay = getNetworkSuggestedRetryDelay();
		log("Network suggested delay=" + networkSuggestedDelay + "ms");

		if (networkSuggestedDelay == NO_RETRY) {
		log("Network suggested not retrying.");
		return NO_RETRY;
		}

		if (mModemSuggestedDelay != NO_SUGGESTED_RETRY_DELAY &&
		mSameApnRetryCount < MAX_SAME_APN_RETRY) {
		// If the modem explicitly suggests a retry delay, we should use it, even in fail fast
		if (networkSuggestedDelay != NO_SUGGESTED_RETRY_DELAY
		&& mSameApnRetryCount < MAX_SAME_APN_RETRY) {
		// If the network explicitly suggests a retry delay, we should use it, even in fail fast
		// mode.
		log("Modem suggested retry in " + mModemSuggestedDelay + " ms.");
		return mModemSuggestedDelay;
		log("Network suggested retry in " + networkSuggestedDelay + " ms.");
		return networkSuggestedDelay;
		}

		// In order to determine the delay to try next APN, we need to peek the next available APN.
		@@ -620,7 +647,6 @@ public class RetryManager {
		mRetryCount = 0;
		mCurrentApnIndex = -1;
		mSameApnRetryCount = 0;
		mModemSuggestedDelay = NO_SUGGESTED_RETRY_DELAY;
		mRetryArray.clear();
		}

		@@ -661,19 +687,6 @@ public class RetryManager {
		return mWaitingApns;
		}

		/**
		* Save the modem suggested delay for retrying the current APN.
		* This method is called when we get the suggested delay from RIL.
		* @param delay The delay in milliseconds
		*/
		public void setModemSuggestedDelay(long delay) {
		if (mCurrentApnIndex == -1) {
		log("Waiting APN list has been reset. Ignore the value from modem.");
		return;
		}
		mModemSuggestedDelay = delay;
		}

		/**
		* Get the delay in milliseconds for APN retry after disconnect
		* @return The delay in milliseconds
		@@ -684,16 +697,17 @@ public class RetryManager {

		public String toString() {
		if (mConfig == null) return "";
		return "RetryManager: mApnType=" + mApnType + " mRetryCount=" + mRetryCount
		+ " mMaxRetryCount=" + mMaxRetryCount + " mCurrentApnIndex=" + mCurrentApnIndex
		+ " mSameApnRtryCount=" + mSameApnRetryCount + " mModemSuggestedDelay="
		+ mModemSuggestedDelay + " mRetryForever=" + mRetryForever + " mInterApnDelay="
		+ mInterApnDelay + " mApnRetryAfterDisconnectDelay=" + mApnRetryAfterDisconnectDelay
		return "RetryManager: apnType=" + ApnSetting.getApnTypeString(apnType) + " mRetryCount="
		+ mRetryCount + " mMaxRetryCount=" + mMaxRetryCount + " mCurrentApnIndex="
		+ mCurrentApnIndex + " mSameApnRtryCount=" + mSameApnRetryCount
		+ " networkSuggestedDelay=" + getNetworkSuggestedRetryDelay() + " mRetryForever="
		+ mRetryForever + " mInterApnDelay=" + mInterApnDelay
		+ " mApnRetryAfterDisconnectDelay=" + mApnRetryAfterDisconnectDelay
		+ " mConfig={" + mConfig + "}";
		}

		@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
		private void log(String s) {
		Rlog.d(LOG_TAG, "[" + mApnType + "] " + s);
		Rlog.d(LOG_TAG, "[" + ApnSetting.getApnTypeString(apnType) + "] " + s);
		}
		}

src/java/com/android/internal/telephony/dataconnection/ApnContext.java

+4 −13

Original line number	Diff line number	Diff line
		@@ -113,8 +113,7 @@ public class ApnContext {
		* @param tracker Data call tracker
		* @param priority Priority of APN type
		*/
		public ApnContext(Phone phone, String apnType, String logTag, DcTracker tracker,
		int priority) {
		public ApnContext(Phone phone, String apnType, String logTag, DcTracker tracker, int priority) {
		mPhone = phone;
		mApnType = apnType;
		mState = DctConstants.State.IDLE;
		@@ -123,7 +122,8 @@ public class ApnContext {
		mPriority = priority;
		LOG_TAG = logTag;
		mDcTracker = tracker;
		mRetryManager = new RetryManager(phone, apnType);
		mRetryManager = new RetryManager(phone, tracker.getDataThrottler(),
		ApnSetting.getApnTypesBitmaskFromString(apnType));
		}


		@@ -233,15 +233,6 @@ public class ApnContext {
		return mRetryManager.getNextApnSetting();
		}

		/**
		* Save the modem suggested delay for retrying the current APN.
		* This method is called when we get the suggested delay from RIL.
		* @param delay The delay in milliseconds
		*/
		public void setModemSuggestedDelay(long delay) {
		mRetryManager.setModemSuggestedDelay(delay);
		}

		/**
		* Get the delay for trying the next APN setting if the current one failed.
		* @param failFastEnabled True if fail fast mode enabled. In this case we'll use a shorter

src/java/com/android/internal/telephony/dataconnection/DataConnection.java

+24 −13

Original line number	Diff line number	Diff line
		@@ -715,7 +715,7 @@ public class DataConnection extends StateMachine {
		if (mDcTesterFailBringUpAll.getDcFailBringUp().mCounter > 0) {
		DataCallResponse response = new DataCallResponse.Builder()
		.setCause(mDcTesterFailBringUpAll.getDcFailBringUp().mFailCause)
		.setSuggestedRetryTime(
		.setRetryIntervalMillis(
		mDcTesterFailBringUpAll.getDcFailBringUp().mSuggestedRetryTime)
		.setMtuV4(PhoneConstants.UNSET_MTU)
		.setMtuV6(PhoneConstants.UNSET_MTU)
		@@ -2106,7 +2106,14 @@ public class DataConnection extends StateMachine {
		// NO_SUGGESTED_RETRY_DELAY here.

		long delay = getSuggestedRetryDelay(dataCallResponse);
		cp.mApnContext.setModemSuggestedDelay(delay);
		long retryTime = RetryManager.NO_SUGGESTED_RETRY_DELAY;
		if (delay == RetryManager.NO_RETRY) {
		retryTime = RetryManager.NO_RETRY;
		} else if (delay >= 0) {
		retryTime = SystemClock.elapsedRealtime() + delay;
		}
		mDct.getDataThrottler().setRetryTime(mApnSetting.getApnTypeBitmask(),
		retryTime);

		String str = "DcActivatingState: ERROR_DATA_SERVICE_SPECIFIC_ERROR "
		+ " delay=" + delay
		@@ -2903,30 +2910,34 @@ public class DataConnection extends StateMachine {
		* Using the result of the SETUP_DATA_CALL determine the retry delay.
		*
		* @param response The response from setup data call
		* @return NO_SUGGESTED_RETRY_DELAY if no retry is needed otherwise the delay to the
		* next SETUP_DATA_CALL
		* @return {@link RetryManager#NO_SUGGESTED_RETRY_DELAY} if not suggested.
		* {@link RetryManager#NO_RETRY} if retry should not happen. Otherwise the delay in milliseconds
		* to the next SETUP_DATA_CALL.
		*/
		private long getSuggestedRetryDelay(DataCallResponse response) {
		/** According to ril.h
		* The value < 0 means no value is suggested
		* The value 0 means retry should be done ASAP.
		* The value of Integer.MAX_VALUE(0x7fffffff) means no retry.
		* The value of Long.MAX_VALUE(0x7fffffffffffffff) means no retry.
		*/

		long suggestedRetryTime = response.getRetryIntervalMillis();

		// The value < 0 means no value is suggested
		if (response.getSuggestedRetryTime() < 0) {
		if (suggestedRetryTime < 0) {
		if (DBG) log("No suggested retry delay.");
		return RetryManager.NO_SUGGESTED_RETRY_DELAY;
		}
		// The value of Integer.MAX_VALUE(0x7fffffff) means no retry.
		else if (response.getSuggestedRetryTime() == Integer.MAX_VALUE) {
		if (DBG) log("Modem suggested not retrying.");
		} else if (mPhone.getHalVersion().greaterOrEqual(RIL.RADIO_HAL_VERSION_1_6)
		&& suggestedRetryTime == Long.MAX_VALUE) {
		if (DBG) log("Network suggested not retrying.");
		return RetryManager.NO_RETRY;
		} else if (mPhone.getHalVersion().less(RIL.RADIO_HAL_VERSION_1_6)
		&& suggestedRetryTime == Integer.MAX_VALUE) {
		if (DBG) log("Network suggested not retrying.");
		return RetryManager.NO_RETRY;
		}

		// We need to cast it to long because the value returned from RIL is a 32-bit integer,
		// but the time values used in AlarmManager are all 64-bit long.
		return (long) response.getSuggestedRetryTime();
		return suggestedRetryTime;
		}

		public List<ApnContext> getApnContexts() {

src/java/com/android/internal/telephony/dataconnection/DataThrottler.java

0 → 100644

+80 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2020 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package com.android.internal.telephony.dataconnection;

		import android.telephony.Annotation.ApnType;
		import android.telephony.data.ApnSetting;

		import com.android.internal.telephony.RetryManager;

		import java.util.HashMap;
		import java.util.Map;

		/**
		* Data throttler tracks the throttling status of data network. The throttler is per phone and per
		* transport type.
		*/
		public class DataThrottler {
		/**
		* Throttling tracker for APNs. Key is the APN type. Value is the elapsed time that APN
		* should not be retried. {@link RetryManager#NO_SUGGESTED_RETRY_DELAY} indicates throttling
		* does not exist. {@link RetryManager#NO_RETRY} indicates retry should never happen.
		*/
		private final Map<Integer, Long> mThrottlingTracker = new HashMap<>();

		/**
		* Set retry time for the APN type.
		*
		* @param apnTypes APN types
		* @param retryElapsedTime The elapsed time that data connection for APN types should not be
		* retried. {@link RetryManager#NO_SUGGESTED_RETRY_DELAY} indicates throttling does not exist.
		* {@link RetryManager#NO_RETRY} indicates retry should never happen.
		*/
		public void setRetryTime(@ApnType int apnTypes, long retryElapsedTime) {
		if (retryElapsedTime < 0) {
		retryElapsedTime = RetryManager.NO_SUGGESTED_RETRY_DELAY;
		}
		while (apnTypes != 0) {
		// Extract the least significant bit.
		int apnType = apnTypes & -apnTypes;
		mThrottlingTracker.put(apnType, retryElapsedTime);
		// Remove the least significant bit.
		apnTypes &= apnTypes - 1;
		}
		}

		/**
		* Get the earliest retry time for given APN type. The time is the system's elapse time.
		*
		* @param apnType APN type
		* @return The earliest retry time for APN type. The time is the system's elapse time.
		* {@link RetryManager#NO_SUGGESTED_RETRY_DELAY} indicates there is no throttling for given APN
		* type, {@link RetryManager#NO_RETRY} indicates retry should never happen.
		*/
		public long getRetryTime(@ApnType int apnType) {
		// This is the workaround to handle the mistake that
		// ApnSetting.TYPE_DEFAULT = ApnTypes.DEFAULT \| ApnTypes.HIPRI.
		if (apnType == ApnSetting.TYPE_DEFAULT) {
		apnType &= ~(ApnSetting.TYPE_HIPRI);
		}
		if (mThrottlingTracker.containsKey(apnType)) {
		return mThrottlingTracker.get(apnType);
		}

		return RetryManager.NO_SUGGESTED_RETRY_DELAY;
		}
		}