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 17 package com.android.internal.telephony.uicc; 18 19 import android.os.Parcel; 20 import android.os.Parcelable; 21 import android.telephony.Rlog; 22 23 import java.util.Arrays; 24 25 /** 26 * {@hide} 27 */ 28 public class PlmnActRecord implements Parcelable { 29 private static final String LOG_TAG = "PlmnActRecord"; 30 31 // Values specified in 3GPP 31.102 sec. 4.2.5 32 public static final int ACCESS_TECH_UTRAN = 0x8000; 33 public static final int ACCESS_TECH_EUTRAN = 0x4000; 34 public static final int ACCESS_TECH_GSM = 0x0080; 35 public static final int ACCESS_TECH_GSM_COMPACT = 0x0040; 36 public static final int ACCESS_TECH_CDMA2000_HRPD = 0x0020; 37 public static final int ACCESS_TECH_CDMA2000_1XRTT = 0x0010; 38 public static final int ACCESS_TECH_RESERVED = 0x3F0F; 39 40 public static final int ENCODED_LENGTH = 5; 41 42 public final String plmn; 43 public final int accessTechs; 44 45 private static final boolean VDBG = false; 46 47 public static final Parcelable.Creator<PlmnActRecord> CREATOR = 48 new Parcelable.Creator<PlmnActRecord>() { 49 @Override 50 public PlmnActRecord createFromParcel(Parcel source) { 51 return new PlmnActRecord(source.readString(), source.readInt()); 52 } 53 54 @Override 55 public PlmnActRecord[] newArray(int size) { 56 return new PlmnActRecord[size]; 57 } 58 }; 59 60 /* From 3gpp 31.102 section 4.2.5 61 * Bytes 0-2 bcd-encoded PLMN-ID 62 * Bytes 3-4 bitfield of access technologies 63 */ PlmnActRecord(byte[] bytes, int offset)64 public PlmnActRecord(byte[] bytes, int offset) { 65 if (VDBG) Rlog.v(LOG_TAG, "Creating PlmnActRecord " + offset); 66 this.plmn = IccUtils.bcdPlmnToString(bytes, offset); 67 this.accessTechs = (Byte.toUnsignedInt(bytes[offset + 3]) << 8) 68 | Byte.toUnsignedInt(bytes[offset + 4]); 69 } 70 PlmnActRecord(String plmn, int accessTechs)71 private PlmnActRecord(String plmn, int accessTechs) { 72 this.plmn = plmn; 73 this.accessTechs = accessTechs; 74 } 75 accessTechString()76 private String accessTechString() { 77 if (accessTechs == 0) { 78 return "NONE"; 79 } 80 81 StringBuilder sb = new StringBuilder(); 82 if ((accessTechs & ACCESS_TECH_UTRAN) != 0) { 83 sb.append("UTRAN|"); 84 } 85 if ((accessTechs & ACCESS_TECH_EUTRAN) != 0) { 86 sb.append("EUTRAN|"); 87 } 88 if ((accessTechs & ACCESS_TECH_GSM) != 0) { 89 sb.append("GSM|"); 90 } 91 if ((accessTechs & ACCESS_TECH_GSM_COMPACT) != 0) { 92 sb.append("GSM_COMPACT|"); 93 } 94 if ((accessTechs & ACCESS_TECH_CDMA2000_HRPD) != 0) { 95 sb.append("CDMA2000_HRPD|"); 96 } 97 if ((accessTechs & ACCESS_TECH_CDMA2000_1XRTT) != 0) { 98 sb.append("CDMA2000_1XRTT|"); 99 } 100 if ((accessTechs & ACCESS_TECH_RESERVED) != 0) { 101 sb.append(String.format("UNKNOWN:%x|", accessTechs & ACCESS_TECH_RESERVED)); 102 } 103 // Trim the tailing pipe character 104 return sb.substring(0, sb.length() - 1); 105 } 106 107 @Override toString()108 public String toString() { 109 return String.format("{PLMN=%s,AccessTechs=%s}", plmn, accessTechString()); 110 } 111 112 /** 113 * Convenience method for extracting all records from encoded bytes 114 */ getRecords(byte[] recordBytes)115 public static PlmnActRecord[] getRecords(byte[] recordBytes) { 116 if (recordBytes == null || recordBytes.length == 0 117 || recordBytes.length % ENCODED_LENGTH != 0) { 118 Rlog.e(LOG_TAG, "Malformed PlmnActRecord, bytes: " 119 + ((recordBytes != null) ? Arrays.toString(recordBytes) : null)); 120 return null; 121 } 122 int numRecords = recordBytes.length / ENCODED_LENGTH; 123 if (VDBG) Rlog.v(LOG_TAG, "Extracting Logs, count=" + numRecords); 124 125 PlmnActRecord[] records = new PlmnActRecord[numRecords]; 126 127 for(int i = 0; i < numRecords; i++) { 128 records[i] = new PlmnActRecord(recordBytes, i * ENCODED_LENGTH); 129 } 130 return records; 131 } 132 133 // Parcelable Implementation 134 @Override describeContents()135 public int describeContents() { 136 return 0; 137 } 138 139 @Override writeToParcel(Parcel dest, int flags)140 public void writeToParcel(Parcel dest, int flags) { 141 dest.writeString(plmn); 142 dest.writeInt(accessTechs); 143 } 144 145 } 146