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Code Issues Packages Projects Releases 2 Wiki Activity

P25 work in progress

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dennis.sheirer
2015-01-07 02:15:51 +00:00
parent f99ab161ff
commit c579f1617d
11 changed files with 704 additions and 178 deletions
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60
src/decode/p25/message/ldu/LDU2Message.java
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@@ -2,12 +2,32 @@ package decode.p25.message.ldu;
import alias.AliasList;
import bits.BitSetBuffer;
import decode.p25.message.P25Message;
import decode.p25.reference.DataUnitID;
import decode.p25.reference.Encryption;
import edac.CRC;
public class LDU2Message extends LDUMessage
{
// public static final int[] OCTET_0 = { 352,353,354,355,356,357,362,363 };
// public static final int[] OCTET_1 = { 364,365,366,367,372,373,374,375 };
// public static final int[] OCTET_2 = { 376,377,382,383,384,385,386,387 };
// public static final int[] OCTET_3 = { 536,537,538,539,540,541,546,547 };
// public static final int[] OCTET_4 = { 548,549,550,551,556,557,558,559 };
// public static final int[] OCTET_5 = { 560,561,566,567,568,569,570,571 };
// public static final int[] OCTET_6 = { 720,721,722,723,724,725,730,731 };
// public static final int[] OCTET_7 = { 732,733,734,735,740,741,742,743 };
// public static final int[] OCTET_8 = { 744,745,750,751,752,753,754,755 };
public static final int[] MESSAGE_INDICATOR_A = { 352,353,354,355,356,357,
362,363,364,365,366,367,372,373,374,375,376,377,382,383,384,385,386,387,
536,537,538,539,540,541,546,547,548,549,550,551 };
public static final int[] MESSAGE_INDICATOR_B = { 556,557,558,559,560,561,
566,567,568,569,570,571,720,721,722,723,724,725,730,731,732,733,734,735,
740,741,742,743,744,745,750,751,752,753,754,755 };
public static final int[] ALGORITHM_ID = { 904,905,906,907,908,909,914,915 };
public static final int[] KEY_ID = { 916,917,918,919,924,925,926,927,928,
929,934,935,936,937,938,939 };
public LDU2Message( BitSetBuffer message, DataUnitID duid,
AliasList aliasList )
{
@@ -25,8 +45,22 @@ public class LDU2Message extends LDUMessage
StringBuilder sb = new StringBuilder();
sb.append( super.getMessageStub() );
sb.append( " " );
Encryption encryption = getEncryption();
if( encryption != Encryption.UNENCRYPTED )
{
sb.append( "ENCRYPTION:" );
sb.append( encryption.name() );
sb.append( " KEY ID:" + getKeyID() );
sb.append( " MSG INDICATOR:" + getMessageIndicator() );
}
else
{
sb.append( "UNENCRYPTED" );
}
sb.append( " " );
sb.append( mMessage.toString() );
return sb.toString();
@@ -37,5 +71,27 @@ public class LDU2Message extends LDUMessage
{
return true;
}
public String getMessageIndicator()
{
StringBuilder sb = new StringBuilder();
sb.append( mMessage.getHex( MESSAGE_INDICATOR_A, 9 ) );
sb.append( mMessage.getHex( MESSAGE_INDICATOR_B, 9 ) );
return sb.toString();
}
public Encryption getEncryption()
{
return Encryption.fromValue( mMessage.getInt( ALGORITHM_ID ) );
}
public int getKeyID()
{
return mMessage.getInt( KEY_ID );
}
}