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Rekha Kumar
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Telephony: Add support to read 3GPP2 sms from CSIM/RUIM
Add parser to parse 3GPP2 format sms stored in CSIM/RUIM card Change-Id: I4720ba7602fcc1b078de0d5fea34247541242c1c
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‎telephony/java/com/android/internal/telephony/cdma/SmsMessage.java‎

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Original file line numberDiff line numberDiff line change
@@ -32,6 +32,7 @@
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import com.android.internal.telephony.cdma.sms.CdmaSmsSubaddress;
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import com.android.internal.telephony.cdma.sms.SmsEnvelope;
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import com.android.internal.telephony.cdma.sms.UserData;
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import com.android.internal.util.BitwiseInputStream;
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import com.android.internal.util.HexDump;
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import java.io.BufferedInputStream;
@@ -72,6 +73,16 @@ public class SmsMessage extends SmsMessageBase {
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static final String LOG_TAG = "CDMA";
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static private final String LOGGABLE_TAG = "CDMA:SMS";
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private final static byte TELESERVICE_IDENTIFIER = 0x00;
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private final static byte SERVICE_CATEGORY = 0x01;
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private final static byte ORIGINATING_ADDRESS = 0x02;
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private final static byte ORIGINATING_SUB_ADDRESS = 0x03;
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private final static byte DESTINATION_ADDRESS = 0x04;
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private final static byte DESTINATION_SUB_ADDRESS = 0x05;
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private final static byte BEARER_REPLY_OPTION = 0x06;
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private final static byte CAUSE_CODES = 0x07;
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private final static byte BEARER_DATA = 0x08;
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/**
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* Status of a previously submitted SMS.
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* This field applies to SMS Delivery Acknowledge messages. 0 indicates success;
@@ -267,6 +278,7 @@ public static SmsMessage createFromEfRecord(int index, byte[] data) {
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System.arraycopy(data, 2, pdu, 0, size);
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// the message has to be parsed before it can be displayed
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// see gsm.SmsMessage
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msg.parsePduFromEfRecord(pdu);
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return msg;
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} catch (RuntimeException ex) {
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Log.e(LOG_TAG, "SMS PDU parsing failed: ", ex);
@@ -538,6 +550,143 @@ private void parsePdu(byte[] pdu) {
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parseSms();
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}
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/**
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* Decodes 3GPP2 sms stored in CSIM/RUIM cards As per 3GPP2 C.S0015-0
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*/
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private void parsePduFromEfRecord(byte[] pdu) {
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ByteArrayInputStream bais = new ByteArrayInputStream(pdu);
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DataInputStream dis = new DataInputStream(bais);
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SmsEnvelope env = new SmsEnvelope();
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CdmaSmsAddress addr = new CdmaSmsAddress();
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CdmaSmsSubaddress subAddr = new CdmaSmsSubaddress();
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try {
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env.messageType = dis.readByte();
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while (dis.available() > 0) {
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int parameterId = dis.readByte();
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int parameterLen = dis.readByte();
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byte[] parameterData = new byte[parameterLen];
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switch (parameterId) {
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case TELESERVICE_IDENTIFIER:
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/*
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* 16 bit parameter that identifies which upper layer
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* service access point is sending or should receive
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* this message
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*/
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env.teleService = dis.readUnsignedShort();
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Log.i(LOG_TAG, "teleservice = " + env.teleService);
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break;
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case SERVICE_CATEGORY:
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/*
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* 16 bit parameter that identifies type of service as
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* in 3GPP2 C.S0015-0 Table 3.4.3.2-1
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*/
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env.serviceCategory = dis.readUnsignedShort();
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break;
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case ORIGINATING_ADDRESS:
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case DESTINATION_ADDRESS:
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dis.read(parameterData, 0, parameterLen);
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BitwiseInputStream addrBis = new BitwiseInputStream(parameterData);
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addr.digitMode = addrBis.read(1);
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addr.numberMode = addrBis.read(1);
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int numberType = 0;
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if (addr.digitMode == CdmaSmsAddress.DIGIT_MODE_8BIT_CHAR) {
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numberType = addrBis.read(3);
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addr.ton = numberType;
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if (addr.numberMode == CdmaSmsAddress.NUMBER_MODE_NOT_DATA_NETWORK)
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addr.numberPlan = addrBis.read(4);
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}
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addr.numberOfDigits = addrBis.read(8);
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byte[] data = new byte[addr.numberOfDigits];
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byte b = 0x00;
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if (addr.digitMode == CdmaSmsAddress.DIGIT_MODE_4BIT_DTMF) {
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/* As per 3GPP2 C.S0005-0 Table 2.7.1.3.2.4-4 */
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for (int index = 0; index < addr.numberOfDigits; index++) {
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b = (byte) (0xF & addrBis.read(4));
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// convert the value if it is 4-bit DTMF to 8
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// bit
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data[index] = convertDtmfToAscii(b);
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}
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} else if (addr.digitMode == CdmaSmsAddress.DIGIT_MODE_8BIT_CHAR) {
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if (addr.numberMode == CdmaSmsAddress.NUMBER_MODE_NOT_DATA_NETWORK) {
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for (int index = 0; index < addr.numberOfDigits; index++) {
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b = (byte) (0xFF & addrBis.read(8));
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data[index] = b;
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}
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} else if (addr.numberMode == CdmaSmsAddress.NUMBER_MODE_DATA_NETWORK) {
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if (numberType == 2)
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Log.e(LOG_TAG, "TODO: Originating Addr is email id");
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else
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Log.e(LOG_TAG,
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"TODO: Originating Addr is data network address");
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} else {
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Log.e(LOG_TAG, "Originating Addr is of incorrect type");
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}
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} else {
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Log.e(LOG_TAG, "Incorrect Digit mode");
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}
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addr.origBytes = data;
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Log.i(LOG_TAG, "Originating Addr=" + addr.toString());
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break;
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case ORIGINATING_SUB_ADDRESS:
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case DESTINATION_SUB_ADDRESS:
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dis.read(parameterData, 0, parameterLen);
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BitwiseInputStream subAddrBis = new BitwiseInputStream(parameterData);
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subAddr.type = subAddrBis.read(3);
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subAddr.odd = subAddrBis.readByteArray(1)[0];
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int subAddrLen = subAddrBis.read(8);
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byte[] subdata = new byte[subAddrLen];
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for (int index = 0; index < subAddrLen; index++) {
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b = (byte) (0xFF & subAddrBis.read(4));
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// convert the value if it is 4-bit DTMF to 8 bit
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subdata[index] = convertDtmfToAscii(b);
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}
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subAddr.origBytes = subdata;
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break;
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case BEARER_REPLY_OPTION:
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dis.read(parameterData, 0, parameterLen);
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BitwiseInputStream replyOptBis = new BitwiseInputStream(parameterData);
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env.bearerReply = replyOptBis.read(6);
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break;
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case CAUSE_CODES:
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dis.read(parameterData, 0, parameterLen);
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BitwiseInputStream ccBis = new BitwiseInputStream(parameterData);
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env.replySeqNo = ccBis.readByteArray(6)[0];
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env.errorClass = ccBis.readByteArray(2)[0];
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if (env.errorClass != 0x00)
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env.causeCode = ccBis.readByteArray(8)[0];
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break;
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case BEARER_DATA:
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dis.read(parameterData, 0, parameterLen);
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env.bearerData = parameterData;
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break;
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default:
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throw new Exception("unsupported parameterId (" + parameterId + ")");
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}
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}
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bais.close();
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dis.close();
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} catch (Exception ex) {
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Log.e(LOG_TAG, "parsePduFromEfRecord: conversion from pdu to SmsMessage failed" + ex);
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}
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// link the filled objects to this SMS
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originatingAddress = addr;
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env.origAddress = addr;
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env.origSubaddress = subAddr;
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mEnvelope = env;
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mPdu = pdu;
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parseSms();
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}
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/**
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* Parses a SMS message from its BearerData stream. (mobile-terminated only)
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*/

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