1 /* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.internal.telephony.dataconnection; 17 18 import static com.android.internal.telephony.DctConstants.APN_CBS_ID; 19 import static com.android.internal.telephony.DctConstants.APN_DEFAULT_ID; 20 import static com.android.internal.telephony.DctConstants.APN_DUN_ID; 21 import static com.android.internal.telephony.DctConstants.APN_EMERGENCY_ID; 22 import static com.android.internal.telephony.DctConstants.APN_FOTA_ID; 23 import static com.android.internal.telephony.DctConstants.APN_IA_ID; 24 import static com.android.internal.telephony.DctConstants.APN_IMS_ID; 25 import static com.android.internal.telephony.DctConstants.APN_INVALID_ID; 26 import static com.android.internal.telephony.DctConstants.APN_MMS_ID; 27 import static com.android.internal.telephony.DctConstants.APN_SUPL_ID; 28 29 import android.content.Context; 30 import android.net.NetworkCapabilities; 31 import android.net.NetworkConfig; 32 import android.net.NetworkRequest; 33 import android.telephony.Rlog; 34 35 import java.util.HashMap; 36 37 public class DcRequest implements Comparable<DcRequest> { 38 private static final String LOG_TAG = "DcRequest"; 39 40 public final NetworkRequest networkRequest; 41 public final int priority; 42 public final int apnId; 43 44 public DcRequest(NetworkRequest nr, Context context) { 45 initApnPriorities(context); 46 networkRequest = nr; 47 apnId = apnIdForNetworkRequest(networkRequest); 48 priority = priorityForApnId(apnId); 49 } 50 51 public String toString() { 52 return networkRequest.toString() + ", priority=" + priority + ", apnId=" + apnId; 53 } 54 55 public int hashCode() { 56 return networkRequest.hashCode(); 57 } 58 59 public boolean equals(Object o) { 60 if (o instanceof DcRequest) { 61 return networkRequest.equals(((DcRequest)o).networkRequest); 62 } 63 return false; 64 } 65 66 public int compareTo(DcRequest o) { 67 return o.priority - priority; 68 } 69 70 private int apnIdForNetworkRequest(NetworkRequest nr) { 71 NetworkCapabilities nc = nr.networkCapabilities; 72 // For now, ignore the bandwidth stuff 73 if (nc.getTransportTypes().length > 0 && 74 nc.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) == false) { 75 return APN_INVALID_ID; 76 } 77 78 // in the near term just do 1-1 matches. 79 // TODO - actually try to match the set of capabilities 80 int apnId = APN_INVALID_ID; 81 82 boolean error = false; 83 if (nc.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)) { 84 if (apnId != APN_INVALID_ID) error = true; 85 apnId = APN_DEFAULT_ID; 86 } 87 if (nc.hasCapability(NetworkCapabilities.NET_CAPABILITY_MMS)) { 88 if (apnId != APN_INVALID_ID) error = true; 89 apnId = APN_MMS_ID; 90 } 91 if (nc.hasCapability(NetworkCapabilities.NET_CAPABILITY_SUPL)) { 92 if (apnId != APN_INVALID_ID) error = true; 93 apnId = APN_SUPL_ID; 94 } 95 if (nc.hasCapability(NetworkCapabilities.NET_CAPABILITY_DUN)) { 96 if (apnId != APN_INVALID_ID) error = true; 97 apnId = APN_DUN_ID; 98 } 99 if (nc.hasCapability(NetworkCapabilities.NET_CAPABILITY_FOTA)) { 100 if (apnId != APN_INVALID_ID) error = true; 101 apnId = APN_FOTA_ID; 102 } 103 if (nc.hasCapability(NetworkCapabilities.NET_CAPABILITY_IMS)) { 104 if (apnId != APN_INVALID_ID) error = true; 105 apnId = APN_IMS_ID; 106 } 107 if (nc.hasCapability(NetworkCapabilities.NET_CAPABILITY_CBS)) { 108 if (apnId != APN_INVALID_ID) error = true; 109 apnId = APN_CBS_ID; 110 } 111 if (nc.hasCapability(NetworkCapabilities.NET_CAPABILITY_IA)) { 112 if (apnId != APN_INVALID_ID) error = true; 113 apnId = APN_IA_ID; 114 } 115 if (nc.hasCapability(NetworkCapabilities.NET_CAPABILITY_RCS)) { 116 if (apnId != APN_INVALID_ID) error = true; 117 apnId = APN_INVALID_ID; 118 loge("RCS APN type not yet supported"); 119 } 120 if (nc.hasCapability(NetworkCapabilities.NET_CAPABILITY_XCAP)) { 121 if (apnId != APN_INVALID_ID) error = true; 122 apnId = APN_INVALID_ID; 123 loge("XCAP APN type not yet supported"); 124 } 125 if (nc.hasCapability(NetworkCapabilities.NET_CAPABILITY_EIMS)) { 126 if (apnId != APN_INVALID_ID) error = true; 127 apnId = APN_EMERGENCY_ID; 128 } 129 if (error) { 130 // TODO: If this error condition is removed, the framework's handling of 131 // NET_CAPABILITY_NOT_RESTRICTED will need to be updated so requests for 132 // say FOTA and INTERNET are marked as restricted. This is not how 133 // NetworkCapabilities.maybeMarkCapabilitiesRestricted currently works. 134 loge("Multiple apn types specified in request - result is unspecified!"); 135 } 136 if (apnId == APN_INVALID_ID) { 137 loge("Unsupported NetworkRequest in Telephony: nr=" + nr); 138 } 139 return apnId; 140 } 141 142 private static final HashMap<Integer, Integer> sApnPriorityMap = 143 new HashMap<Integer, Integer>(); 144 145 private void initApnPriorities(Context context) { 146 synchronized (sApnPriorityMap) { 147 if (sApnPriorityMap.isEmpty()) { 148 String[] networkConfigStrings = context.getResources().getStringArray( 149 com.android.internal.R.array.networkAttributes); 150 for (String networkConfigString : networkConfigStrings) { 151 NetworkConfig networkConfig = new NetworkConfig(networkConfigString); 152 final int apnId = ApnContext.apnIdForType(networkConfig.type); 153 sApnPriorityMap.put(apnId, networkConfig.priority); 154 } 155 } 156 } 157 } 158 159 private int priorityForApnId(int apnId) { 160 Integer priority = sApnPriorityMap.get(apnId); 161 return (priority != null ? priority.intValue() : 0); 162 } 163 164 private void loge(String s) { 165 Rlog.e(LOG_TAG, s); 166 } 167 } 168
