Address IMSI privacy issues. (2429df65) · Commits · e / os / android_frameworks_opt_telephony

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

0 → 100644

+52 −0

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			/*
			* Copyright (C) 2017 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;

			import android.telephony.ImsiEncryptionInfo;

			/**
			* This class provides methods to retreive information from the CarrierKeyProvider.
			*/
			public class CarrierInfoManager {
			private static final String TAG = "CarrierInfoManager";

			/**
			* Returns Carrier specific information that will be used to encrypt the IMSI and IMPI.
			* @param keyType whether the key is being used for WLAN or ePDG.
			* @return ImsiEncryptionInfo which contains the information including the public key to be
			* used for encryption.
			*/
			public static ImsiEncryptionInfo getCarrierInfoForImsiEncryption(int keyType) {
			//TODO implementation will be done in subsequent CL.
			return null;
			}

			/**
			* Sets the Carrier specific information that will be used to encrypt the IMSI and IMPI.
			* This includes the public key and the key identifier. This information will be stored in the
			* device keystore.
			* @param imsiEncryptionInfo which includes the Key Type, the Public Key
			* {@link java.security.PublicKey} and the Key Identifier.
			* The keyIdentifier Attribute value pair that helps a server locate
			* the private key to decrypt the permanent identity.
			*/
			public static void setCarrierInfoForImsiEncryption(ImsiEncryptionInfo imsiEncryptionInfo) {
			//TODO implementation will be done in subsequent CL.
			return;
			}
			}

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

+11 −0

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	@@ -55,6 +55,7 @@ import android.provider.Telephony;
	import android.telecom.VideoProfile;		import android.telecom.VideoProfile;
	import android.telephony.CarrierConfigManager;		import android.telephony.CarrierConfigManager;
	import android.telephony.CellLocation;		import android.telephony.CellLocation;
			import android.telephony.ImsiEncryptionInfo;
	import android.telephony.PhoneNumberUtils;		import android.telephony.PhoneNumberUtils;
	import android.telephony.Rlog;		import android.telephony.Rlog;
	import android.telephony.ServiceState;		import android.telephony.ServiceState;
	@@ -1490,6 +1491,16 @@ public class GsmCdmaPhone extends Phone {
	}		}
	}		}

			@Override
			public ImsiEncryptionInfo getCarrierInfoForImsiEncryption(int keyType) {
			return CarrierInfoManager.getCarrierInfoForImsiEncryption(keyType);
			}

			@Override
			public void setCarrierInfoForImsiEncryption(ImsiEncryptionInfo imsiEncryptionInfo) {
			CarrierInfoManager.setCarrierInfoForImsiEncryption(imsiEncryptionInfo);
			}

	@Override		@Override
	public String getGroupIdLevel1() {		public String getGroupIdLevel1() {
	if (isPhoneTypeGsm()) {		if (isPhoneTypeGsm()) {

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

+23 −0

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	@@ -45,6 +45,7 @@ import android.telephony.CellInfo;
	import android.telephony.CellInfoCdma;		import android.telephony.CellInfoCdma;
	import android.telephony.CellLocation;		import android.telephony.CellLocation;
	import android.telephony.ClientRequestStats;		import android.telephony.ClientRequestStats;
			import android.telephony.ImsiEncryptionInfo;
	import android.telephony.PhoneStateListener;		import android.telephony.PhoneStateListener;
	import android.telephony.RadioAccessFamily;		import android.telephony.RadioAccessFamily;
	import android.telephony.Rlog;		import android.telephony.Rlog;
	@@ -2925,6 +2926,28 @@ public abstract class Phone extends Handler implements PhoneInternalInterface {
	return mImsPhone;		return mImsPhone;
	}		}

			/**
			* Returns Carrier specific information that will be used to encrypt the IMSI and IMPI.
			* @param keyType whether the key is being used for WLAN or ePDG.
			* @return ImsiEncryptionInfo which includes the Key Type, the Public Key
			* {@link java.security.PublicKey} and the Key Identifier.
			* The keyIdentifier This is used by the server to help it locate the private key to
			* decrypt the permanent identity.
			*/
			public ImsiEncryptionInfo getCarrierInfoForImsiEncryption(int keyType) {
			return null;
			}

			/**
			* Sets the carrier information needed to encrypt the IMSI and IMPI.
			* @param imsiEncryptionInfo Carrier specific information that will be used to encrypt the
			* IMSI and IMPI. This includes the Key type, the Public key
			* {@link java.security.PublicKey} and the Key identifier.
			*/
			public void setCarrierInfoForImsiEncryption(ImsiEncryptionInfo imsiEncryptionInfo) {
			return;
			}

	/**		/**
	* Return if UT capability of ImsPhone is enabled or not		* Return if UT capability of ImsPhone is enabled or not
	*/		*/

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

+20 −0

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	@@ -23,6 +23,8 @@ import android.os.ResultReceiver;
	import android.os.WorkSource;		import android.os.WorkSource;
	import android.telephony.CarrierConfigManager;		import android.telephony.CarrierConfigManager;
	import android.telephony.CellLocation;		import android.telephony.CellLocation;
			import android.telephony.ImsiEncryptionInfo;
			import android.telephony.PhoneStateListener;
	import android.telephony.ServiceState;		import android.telephony.ServiceState;

	import com.android.internal.telephony.PhoneConstants.*; // ????		import com.android.internal.telephony.PhoneConstants.*; // ????
	@@ -825,4 +827,22 @@ public interface PhoneInternalInterface {
	* Callback message is empty on completion		* Callback message is empty on completion
	*/		*/
	public void setCellBroadcastSmsConfig(int[] configValuesArray, Message response);		public void setCellBroadcastSmsConfig(int[] configValuesArray, Message response);

			/*
			* Sets the carrier information needed to encrypt the IMSI and IMPI.
			* @param imsiEncryptionInfo Carrier specific information that will be used to encrypt the
			* IMSI and IMPI. This includes the Key type, the Public key
			* {@link java.security.PublicKey} and the Key identifier.
			*/
			public void setCarrierInfoForImsiEncryption(ImsiEncryptionInfo imsiEncryptionInfo);

			/**
			* Returns Carrier specific information that will be used to encrypt the IMSI and IMPI.
			* @param keyType whether the key is being used for WLAN or ePDG.
			* @return ImsiEncryptionInfo which includes the Key Type, the Public Key
			* {@link java.security.PublicKey} and the Key Identifier.
			* The keyIdentifier This is used by the server to help it locate the private key to
			* decrypt the permanent identity.
			*/
			public ImsiEncryptionInfo getCarrierInfoForImsiEncryption(int keyType);
	}		}

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

+30 −0

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	@@ -24,6 +24,7 @@ import android.content.pm.PackageManager;
	import android.os.Binder;		import android.os.Binder;
	import android.os.RemoteException;		import android.os.RemoteException;
	import android.os.ServiceManager;		import android.os.ServiceManager;
			import android.telephony.ImsiEncryptionInfo;
	import android.telephony.PhoneNumberUtils;		import android.telephony.PhoneNumberUtils;
	import android.telephony.SubscriptionManager;		import android.telephony.SubscriptionManager;
	import android.telephony.Rlog;		import android.telephony.Rlog;
	@@ -103,6 +104,35 @@ public class PhoneSubInfoController extends IPhoneSubInfo.Stub {
	}		}
	}		}

			public ImsiEncryptionInfo getCarrierInfoForImsiEncryption(int subId, int keyType,
			String callingPackage) {
			Phone phone = getPhone(subId);
			if (phone != null) {
			if (!checkReadPhoneState(callingPackage, "getCarrierInfoForImsiEncryption")) {
			return null;
			}
			return phone.getCarrierInfoForImsiEncryption(keyType);
			} else {
			loge("getCarrierInfoForImsiEncryption phone is null for Subscription:" + subId);
			return null;
			}
			}

			public void setCarrierInfoForImsiEncryption(int subId, String callingPackage,
			ImsiEncryptionInfo imsiEncryptionInfo) {
			Phone phone = getPhone(subId);
			if (phone != null) {
			if (!checkReadPhoneState(callingPackage, "setCarrierInfoForImsiEncryption")) {
			return;
			}
			phone.setCarrierInfoForImsiEncryption(imsiEncryptionInfo);
			} else {
			loge("setCarrierInfoForImsiEncryption phone is null for Subscription:" + subId);
			return;
			}
			}


	public String getDeviceSvn(String callingPackage) {		public String getDeviceSvn(String callingPackage) {
	return getDeviceSvnUsingSubId(getDefaultSubscription(), callingPackage);		return getDeviceSvnUsingSubId(getDefaultSubscription(), callingPackage);
	}		}