Supported data enabled override for different scenarios (eece3c01) · Commits · e / os / android_frameworks_opt_telephony

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

+1 −2

Original line number	Diff line number	Diff line
		@@ -156,8 +156,7 @@ public interface PhoneInternalInterface {
		"carrierActionDisableMeteredApn";
		static final String REASON_CSS_INDICATOR_CHANGED = "cssIndicatorChanged";
		static final String REASON_RELEASED_BY_CONNECTIVITY_SERVICE = "releasedByConnectivityService";
		static final String REASON_APN_ADDED_TO_WHITELIST = "apnAddedToWhiteList";
		static final String REASON_APN_REMOVED_FROM_WHITELIST = "apnRemovedFromWhiteList";
		static final String REASON_DATA_ENABLED_OVERRIDE = "dataEnabledOverride";

		// Used for band mode selection methods
		static final int BM_UNSPECIFIED = RILConstants.BAND_MODE_UNSPECIFIED; // automatic

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

+3 −1

Original line number	Diff line number	Diff line
		@@ -54,6 +54,7 @@ import android.telephony.PreciseCallState;
		import android.telephony.Rlog;
		import android.telephony.SubscriptionManager;
		import android.telephony.TelephonyManager;
		import android.telephony.data.ApnSetting;
		import android.util.LocalLog;

		import com.android.internal.annotations.VisibleForTesting;
		@@ -818,7 +819,8 @@ public class PhoneSwitcher extends Handler {
		// requests.
		private void updatePreferredDataPhoneId() {
		Phone voicePhone = findPhoneById(mPhoneIdInVoiceCall);
		if (voicePhone != null && voicePhone.isUserDataEnabled()) {
		if (voicePhone != null && voicePhone.getDataEnabledSettings().isDataEnabled(
		ApnSetting.TYPE_DEFAULT)) {
		// If a phone is in call and user enabled its mobile data, we
		// should switch internet connection to it. Because the other modem
		// will lose data connection anyway.

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

+65 −51

Original line number	Diff line number	Diff line
		@@ -18,9 +18,9 @@ package com.android.internal.telephony;

		import static android.content.pm.PackageManager.PERMISSION_GRANTED;
		import static android.telephony.UiccSlotInfo.CARD_STATE_INFO_PRESENT;
		import static android.telephony.data.ApnSetting.TYPE_MMS;

		import android.Manifest;
		import android.annotation.NonNull;
		import android.annotation.Nullable;
		import android.annotation.UnsupportedAppUsage;
		import android.app.AppOpsManager;
		@@ -41,7 +41,6 @@ import android.os.UserHandle;
		import android.provider.Settings;
		import android.telecom.PhoneAccountHandle;
		import android.telecom.TelecomManager;
		import android.telephony.AccessNetworkConstants;
		import android.telephony.CarrierConfigManager;
		import android.telephony.RadioAccessFamily;
		import android.telephony.Rlog;
		@@ -50,7 +49,6 @@ import android.telephony.SubscriptionManager;
		import android.telephony.TelephonyManager;
		import android.telephony.UiccAccessRule;
		import android.telephony.UiccSlotInfo;
		import android.telephony.data.ApnSetting;
		import android.telephony.euicc.EuiccManager;
		import android.text.TextUtils;
		import android.util.LocalLog;
		@@ -58,6 +56,7 @@ import android.util.Log;

		import com.android.internal.annotations.VisibleForTesting;
		import com.android.internal.telephony.IccCardConstants.State;
		import com.android.internal.telephony.dataconnection.DataEnabledOverride;
		import com.android.internal.telephony.metrics.TelephonyMetrics;
		import com.android.internal.telephony.uicc.IccUtils;
		import com.android.internal.telephony.uicc.UiccCard;
		@@ -1729,11 +1728,11 @@ public class SubscriptionController extends ISub.Stub {

		public void syncGroupedSetting(int refSubId) {
		// Currently it only syncs allow MMS. Sync other settings as well if needed.
		int apnWhiteList = Integer.valueOf(getSubscriptionProperty(
		refSubId, SubscriptionManager.WHITE_LISTED_APN_DATA, mContext.getOpPackageName()));
		String dataEnabledOverrideRules = getSubscriptionProperty(
		refSubId, SubscriptionManager.DATA_ENABLED_OVERRIDE_RULES);

		ContentValues value = new ContentValues(1);
		value.put(SubscriptionManager.WHITE_LISTED_APN_DATA, apnWhiteList);
		value.put(SubscriptionManager.DATA_ENABLED_OVERRIDE_RULES, dataEnabledOverrideRules);
		databaseUpdateHelper(value, refSubId, true);
		}

		@@ -2554,11 +2553,11 @@ public class SubscriptionController extends ISub.Stub {
		}

		/**
		* Store properties associated with SubscriptionInfo in database
		* Get properties associated with SubscriptionInfo from database
		*
		* @param subId Subscription Id of Subscription
		* @param propKey Column name in SubscriptionInfo database
		* @return Value associated with subId and propKey column in database
		* @hide
		*/
		@Override
		public String getSubscriptionProperty(int subId, String propKey, String callingPackage) {
		@@ -2566,14 +2565,29 @@ public class SubscriptionController extends ISub.Stub {
		mContext, subId, callingPackage, "getSubscriptionProperty")) {
		return null;
		}

		final long identity = Binder.clearCallingIdentity();
		try {
		return getSubscriptionProperty(subId, propKey);
		} finally {
		Binder.restoreCallingIdentity(identity);
		}
		}

		/**
		* Get properties associated with SubscriptionInfo from database. Note this is the version
		* without permission check for telephony internal use only.
		*
		* @param subId Subscription Id of Subscription
		* @param propKey Column name in SubscriptionInfo database
		* @return Value associated with subId and propKey column in database
		*/
		public String getSubscriptionProperty(int subId, String propKey) {
		String resultValue = null;
		ContentResolver resolver = mContext.getContentResolver();
		Cursor cursor = resolver.query(SubscriptionManager.CONTENT_URI,
		try (Cursor cursor = mContext.getContentResolver().query(SubscriptionManager.CONTENT_URI,
		new String[]{propKey},
		SubscriptionManager.UNIQUE_KEY_SUBSCRIPTION_ID + "=?",
		new String[]{subId + ""}, null);

		try {
		new String[]{subId + ""}, null)) {
		if (cursor != null) {
		if (cursor.moveToFirst()) {
		switch (propKey) {
		@@ -2600,6 +2614,9 @@ public class SubscriptionController extends ISub.Stub {
		case SubscriptionManager.WHITE_LISTED_APN_DATA:
		resultValue = cursor.getInt(0) + "";
		break;
		case SubscriptionManager.DATA_ENABLED_OVERRIDE_RULES:
		resultValue = cursor.getString(0);
		break;
		default:
		if(DBG) logd("Invalid column name");
		break;
		@@ -2610,11 +2627,8 @@ public class SubscriptionController extends ISub.Stub {
		} else {
		if(DBG) logd("Query failed");
		}
		} finally {
		if (cursor != null) {
		cursor.close();
		}
		}

		if (DBG) logd("getSubscriptionProperty Query value = " + resultValue);
		return resultValue;
		}
		@@ -3632,13 +3646,30 @@ public class SubscriptionController extends ISub.Stub {
		final long identity = Binder.clearCallingIdentity();
		try {
		validateSubId(subId);
		DataEnabledOverride dataEnabledOverride =
		new DataEnabledOverride(getDataEnabledOverrideRules(subId));
		dataEnabledOverride.setAlwaysAllowMms(alwaysAllow);

		return setDataEnabledOverrideRules(subId, dataEnabledOverride.getRules());
		} finally {
		Binder.restoreCallingIdentity(identity);
		}
		}

		/**
		* Set allowing mobile data during voice call.
		*
		* @param subId Subscription index
		* @param rules Data enabled override rules in string format. See {@link DataEnabledOverride}
		* for details.
		* @return {@code true} if settings changed, otherwise {@code false}.
		*/
		public boolean setDataEnabledOverrideRules(int subId, @NonNull String rules) {
		if (DBG) logd("[setDataEnabledOverrideRules]+ rules:" + rules + " subId:" + subId);

		validateSubId(subId);
		ContentValues value = new ContentValues(1);
		int apnWhiteList = Integer.valueOf(getSubscriptionProperty(subId,
		SubscriptionManager.WHITE_LISTED_APN_DATA, mContext.getOpPackageName()));
		apnWhiteList = alwaysAllow ? (apnWhiteList \| TYPE_MMS) : (apnWhiteList & ~TYPE_MMS);
		value.put(SubscriptionManager.WHITE_LISTED_APN_DATA, apnWhiteList);
		if (DBG) logd("[setAlwaysAllowMmsData]- alwaysAllow:" + alwaysAllow + " set");
		value.put(SubscriptionManager.DATA_ENABLED_OVERRIDE_RULES, rules);

		boolean result = databaseUpdateHelper(value, subId, true) > 0;

		@@ -3646,37 +3677,20 @@ public class SubscriptionController extends ISub.Stub {
		// Refresh the Cache of Active Subscription Info List
		refreshCachedActiveSubscriptionInfoList();
		notifySubscriptionInfoChanged();
		Phone phone = PhoneFactory.getPhone(getPhoneId(subId));
		if (phone != null) {
		phone.getDcTracker(AccessNetworkConstants.TRANSPORT_TYPE_WWAN)
		.notifyApnWhiteListChange(TYPE_MMS, alwaysAllow);
		}
		}

		return result;
		} finally {
		Binder.restoreCallingIdentity(identity);
		}
		}

		/**
		* whether apnType is whitelisted. Being white listed means data connection is allowed
		* even if user data is turned off.
		* Get data enabled override rules.
		*
		* @param subId Subscription index
		* @return Data enabled override rules in string
		*/
		public boolean isApnWhiteListed(int subId, String callingPackage, int apnType) {
		return (getWhiteListedApnDataTypes(subId, callingPackage) & apnType) == apnType;
		}

		private @ApnSetting.ApnType int getWhiteListedApnDataTypes(int subId, String callingPackage) {
		String whiteListedApnData = getSubscriptionProperty(subId,
		SubscriptionManager.WHITE_LISTED_APN_DATA, callingPackage);

		try {
		return Integer.valueOf(whiteListedApnData);
		} catch (NumberFormatException e) {
		loge("[getWhiteListedApnDataTypes] couldn't parse apn data:" + whiteListedApnData);
		}

		return ApnSetting.TYPE_NONE;
		@NonNull
		public String getDataEnabledOverrideRules(int subId) {
		return TextUtils.emptyIfNull(getSubscriptionProperty(subId,
		SubscriptionManager.DATA_ENABLED_OVERRIDE_RULES));
		}
		}

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

0 → 100644

+406 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright 2019 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.annotation.IntDef;
		import android.annotation.NonNull;
		import android.telephony.data.ApnSetting;
		import android.telephony.data.ApnSetting.ApnType;
		import android.text.TextUtils;
		import android.util.ArrayMap;

		import com.android.internal.annotations.VisibleForTesting;
		import com.android.internal.telephony.Phone;
		import com.android.internal.telephony.PhoneConstants;
		import com.android.internal.telephony.SubscriptionController;
		import com.android.internal.telephony.dataconnection.DataEnabledOverride.OverrideConditions.Condition;

		import java.lang.annotation.Retention;
		import java.lang.annotation.RetentionPolicy;
		import java.util.ArrayList;
		import java.util.HashSet;
		import java.util.List;
		import java.util.Map;
		import java.util.Objects;
		import java.util.Set;

		/**
		* This class represents the rules for overriding data enabled settings in different conditions.
		* When data is disabled by the user, data can still be turned on temporarily when conditions
		* satisfy any rule here.
		*/
		public class DataEnabledOverride {

		private final Set<OverrideRule> mRules = new HashSet<>();

		/**
		* The rule for allowing data during voice call.
		*/
		private static final OverrideRule OVERRIDE_RULE_ALLOW_DATA_DURING_VOICE_CALL =
		new OverrideRule(ApnSetting.TYPE_ALL, OverrideConditions.CONDITION_IN_VOICE_CALL
		\| OverrideConditions.CONDITION_NON_DEFAULT);

		/**
		* The rule for always allowing mms. Without adding any condition to the rule, any condition can
		* satisfy this rule for mms.
		*/
		private static final OverrideRule OVERRIDE_RULE_ALWAYS_ALLOW_MMS =
		new OverrideRule(ApnSetting.TYPE_MMS, OverrideConditions.CONDITION_UNCONDITIONALLY);

		/**
		* Data enabled override rule
		*/
		private static class OverrideRule {
		/**
		* APN type of the rule. The rule is APN type specific. The override is applicable to the
		* specified APN type as well. For now we only support one APN type per rule. Can be
		* expanded to multiple APN types in the future.
		*/
		private final @ApnType int mApnType;

		/** The required conditions for overriding */
		private final OverrideConditions mRequiredConditions;

		/**
		* Constructor
		*
		* @param rule The override rule string. For example, {@code mms=nonDefault} or
		* {@code default=voiceCall & nonDefault}
		*/
		OverrideRule(@NonNull String rule) {
		String[] tokens = rule.trim().split("\\s=\\s");
		if (tokens.length != 2) {
		throw new IllegalArgumentException("Invalid data enabled override rule format: "
		+ rule);
		}

		if (TextUtils.isEmpty(tokens[0])) {
		throw new IllegalArgumentException("APN type can't be empty");
		}

		mApnType = ApnSetting.getApnTypesBitmaskFromString(tokens[0]);
		if (mApnType == ApnSetting.TYPE_NONE) {
		throw new IllegalArgumentException("Invalid APN type. Rule=" + rule);
		}

		mRequiredConditions = new OverrideConditions(tokens[1]);
		}

		/**
		* Constructor
		*
		* @param apnType APN type of the rule
		* @param requiredConditions The required conditions for the rule
		*/
		private OverrideRule(int apnType, int requiredConditions) {
		mApnType = apnType;
		mRequiredConditions = new OverrideConditions(requiredConditions);
		}

		/**
		* Check if this rule can be satisfied by the given APN type and provided conditions.
		*
		* @param apnType APN type to check
		* @param providedConditions The provided conditions to check
		* @return {@code true} if satisfied
		*/
		boolean isSatisfiedByConditions(@ApnType int apnType, @Condition int providedConditions) {
		return (mApnType == apnType \|\| mApnType == ApnSetting.TYPE_ALL)
		&& mRequiredConditions.allMet(providedConditions);
		}

		@Override
		public String toString() {
		return ApnSetting.getApnTypeString(mApnType) + "=" + mRequiredConditions;
		}

		@Override
		public boolean equals(Object o) {
		if (this == o) return true;
		if (o == null \|\| getClass() != o.getClass()) return false;
		OverrideRule that = (OverrideRule) o;
		return mApnType == that.mApnType
		&& Objects.equals(mRequiredConditions, that.mRequiredConditions);
		}

		@Override
		public int hashCode() {
		return Objects.hash(mApnType, mRequiredConditions);
		}
		}

		/**
		* Represent the conditions for overriding data enabled settings
		*/
		static class OverrideConditions {
		// Possible values for data enabled override condition. Note these flags are bitmasks.
		/** Unconditionally override enabled settings */
		static final int CONDITION_UNCONDITIONALLY = 0;

		/** Enable data only on subscription that is not user selected default data subscription */
		static final int CONDITION_NON_DEFAULT = 1 << 0;

		/** Enable data only when device has ongoing voice call */
		static final int CONDITION_IN_VOICE_CALL = 1 << 1;

		/** Enable data unconditionally in string format */
		static final String CONDITION_UNCONDITIONALLY_STRING = "unconditionally";

		/** Enable data only on subscription that is not default in string format */
		static final String CONDITION_NON_DEFAULT_STRING = "nonDefault";

		/** Enable data only when device has ongoing voice call in string format */
		static final String CONDITION_VOICE_CALL_STRING = "inVoiceCall";

		/** @hide */
		@IntDef(flag = true, prefix = { "OVERRIDE_CONDITION_" }, value = {
		CONDITION_NON_DEFAULT,
		CONDITION_IN_VOICE_CALL,
		})
		@Retention(RetentionPolicy.SOURCE)
		public @interface Condition {}

		private static final Map<Integer, String> OVERRIDE_CONDITION_INT_MAP = new ArrayMap<>();
		private static final Map<String, Integer> OVERRIDE_CONDITION_STRING_MAP = new ArrayMap<>();

		static {
		OVERRIDE_CONDITION_INT_MAP.put(CONDITION_NON_DEFAULT,
		CONDITION_NON_DEFAULT_STRING);
		OVERRIDE_CONDITION_INT_MAP.put(CONDITION_IN_VOICE_CALL,
		CONDITION_VOICE_CALL_STRING);

		OVERRIDE_CONDITION_STRING_MAP.put(CONDITION_UNCONDITIONALLY_STRING,
		CONDITION_UNCONDITIONALLY);
		OVERRIDE_CONDITION_STRING_MAP.put(CONDITION_NON_DEFAULT_STRING,
		CONDITION_NON_DEFAULT);
		OVERRIDE_CONDITION_STRING_MAP.put(CONDITION_VOICE_CALL_STRING,
		CONDITION_IN_VOICE_CALL);
		}

		private final @Condition int mConditions;

		/**
		* Conditions for overriding data enabled setting
		*
		* @param conditions Conditions in string format
		*/
		OverrideConditions(@NonNull String conditions) {
		mConditions = getBitmaskFromString(conditions);
		}

		/**
		* Conditions for overriding data enabled setting
		*
		* @param conditions Conditions in bitmask
		*/
		OverrideConditions(@Condition int conditions) {
		mConditions = conditions;
		}

		private static String getStringFromBitmask(@Condition int conditions) {
		if (conditions == CONDITION_UNCONDITIONALLY) {
		return CONDITION_UNCONDITIONALLY_STRING;
		}
		List<String> conditionsStrings = new ArrayList<>();
		for (Integer condition : OVERRIDE_CONDITION_INT_MAP.keySet()) {
		if ((conditions & condition) == condition) {
		conditionsStrings.add(OVERRIDE_CONDITION_INT_MAP.get(condition));
		}
		}
		return TextUtils.join("&", conditionsStrings);
		}

		private static @Condition int getBitmaskFromString(@NonNull String str) {
		if (TextUtils.isEmpty(str)) {
		throw new IllegalArgumentException("Empty rule string");
		}

		String[] conditionStrings = str.trim().split("\\s&\\s");
		int bitmask = 0;

		for (String conditionStr : conditionStrings) {
		if (!TextUtils.isEmpty(conditionStr)) {
		if (!OVERRIDE_CONDITION_STRING_MAP.containsKey(conditionStr)) {
		throw new IllegalArgumentException("Invalid conditions: " + str);
		}
		bitmask \|= OVERRIDE_CONDITION_STRING_MAP.get(conditionStr);
		}
		}

		return bitmask;
		}

		/**
		* Check if provided conditions can meet all conditions in the rule.
		*
		* @param providedConditions The provided conditions
		* @return {@code true} if all conditions are met.
		*/
		boolean allMet(@Condition int providedConditions) {
		return (providedConditions & mConditions) == mConditions;
		}

		@Override
		public boolean equals(Object o) {
		if (this == o) return true;
		if (o == null \|\| getClass() != o.getClass()) return false;
		OverrideConditions that = (OverrideConditions) o;
		return mConditions == that.mConditions;
		}

		@Override
		public int hashCode() {
		return Objects.hash(mConditions);
		}

		@Override
		public String toString() {
		return getStringFromBitmask(mConditions);
		}
		}

		/**
		* Constructor
		*
		* @param rules Data enabled override rules
		*/
		public DataEnabledOverride(@NonNull String rules) {
		updateRules(rules);
		}

		/**
		* Update the data enabled override rules.
		*
		* @param newRules New override rules
		*/
		@VisibleForTesting
		public void updateRules(@NonNull String newRules) {
		mRules.clear();
		String[] rulesString = newRules.trim().split("\\s,\\s");
		for (String rule : rulesString) {
		if (!TextUtils.isEmpty(rule)) {
		mRules.add(new OverrideRule(rule));
		}
		}
		}

		/**
		* Set always allowing MMS
		*
		* @param allow {@code true} if always allowing, otherwise {@code false}.
		*/
		public void setAlwaysAllowMms(boolean allow) {
		if (allow) {
		mRules.add(OVERRIDE_RULE_ALWAYS_ALLOW_MMS);
		} else {
		mRules.remove(OVERRIDE_RULE_ALWAYS_ALLOW_MMS);
		}
		}

		/**
		* Set allowing mobile data during voice call.
		*
		* @param allow {@code true} if allowing using data during voice call, {@code false} if
		* disallowed.
		*/
		public void setDataAllowedInVoiceCall(boolean allow) {
		if (allow) {
		mRules.add(OVERRIDE_RULE_ALLOW_DATA_DURING_VOICE_CALL);
		} else {
		mRules.remove(OVERRIDE_RULE_ALLOW_DATA_DURING_VOICE_CALL);
		}
		}

		/**
		* Check if data is allowed during voice call.
		*
		* @return {@code true} if data is allowed during voice call.
		*/
		public boolean isDataAllowedInVoiceCall() {
		return mRules.contains(OVERRIDE_RULE_ALLOW_DATA_DURING_VOICE_CALL);
		}

		private boolean canSatisfyAnyRule(@ApnType int apnType,
		@Condition int providedConditions) {
		for (OverrideRule rule : mRules) {
		if (rule.isSatisfiedByConditions(apnType, providedConditions)) {
		return true;
		}
		}
		return false;
		}

		private @Condition int getCurrentConditions(Phone phone) {
		int conditions = 0;

		if (phone != null) {
		// Check if the device is on voice call
		if (phone.getCallTracker().getState() != PhoneConstants.State.IDLE) {
		conditions \|= OverrideConditions.CONDITION_IN_VOICE_CALL;
		}

		if (phone.getSubId() != SubscriptionController.getInstance().getDefaultDataSubId()) {
		conditions \|= OverrideConditions.CONDITION_NON_DEFAULT;
		}
		}

		return conditions;
		}

		/**
		* Check for given APN type if we should enable data.
		*
		* @param phone Phone object
		* @param apnType APN type
		* @return {@code true} if data should be enabled for the current condition.
		*/
		public boolean shouldOverrideDataEnabledSettings(Phone phone, @ApnType int apnType) {
		return canSatisfyAnyRule(apnType, getCurrentConditions(phone));
		}

		/**
		* Get data enabled override rules.
		*
		* @return Get data enabled override rules in string format
		*/
		@NonNull
		public String getRules() {
		List<String> ruleStrings = new ArrayList<>();
		for (OverrideRule rule : mRules) {
		ruleStrings.add(rule.toString());
		}
		return TextUtils.join(",", ruleStrings);
		}

		@Override
		public boolean equals(Object o) {
		if (this == o) return true;
		if (o == null \|\| getClass() != o.getClass()) return false;
		DataEnabledOverride that = (DataEnabledOverride) o;
		return mRules.equals(that.mRules);
		}

		@Override
		public int hashCode() {
		return Objects.hash(mRules);
		}

		@Override
		public String toString() {
		return "DataEnabledOverride: [rules=\"" + getRules() + "\"]";
		}
		}

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

+87 −11

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