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Code Issues Packages Projects Releases 2 Wiki Activity

P25 work in progress.

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dennis.sheirer
2014-11-26 03:42:22 +00:00
parent 23901c7a2f
commit 86899e8a77
19 changed files with 907 additions and 214 deletions
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247
src/decode/p25/message/pdu/PDUMessage.java
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@@ -4,156 +4,157 @@ import alias.AliasList;
import bits.BitSetBuffer;
import decode.p25.message.P25Message;
import decode.p25.reference.DataUnitID;
import decode.p25.reference.Opcode;
import decode.p25.reference.PDUFormat;
import decode.p25.reference.ServiceAccessPoint;
import decode.p25.reference.Vendor;
public class PDUMessage extends P25Message
{
public static final int PDU_HEADER_DUMMY1 = 66; //Always 0
public static final int PDU_HEADER_CONFIRMATION_REQUIRED = 67;
public static final int PDU_HEADER_DIRECTION_FLAG = 68;
public static final int[] PDU_HEADER_FORMAT = { 69,70,71,72,73 };
public static final int PDU_HEADER_DUMMY2 = 74; //Always 1
public static final int PDU_HEADER_DUMMY3 = 75; //Always 1
public static final int[] PDU_HEADER_SAP_ID = { 76,77,78,79,80 };
public static final int[] PDU_HEADER_VENDOR_ID = { 81,82,83,84,85,86,87,88 };
public static final int[] PDU_HEADER_LOGICAL_LINK_ID = { 89,90,91,92,93,94,
97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114 };
public static final int PDU_HEADER_FULL_MESSAGE_FLAG = 115;
public static final int[] PDU_HEADER_BLOCKS_TO_FOLLOW = { 116,117,118,119,
120,121,122 };
public static final int PDU_HEADER_DUMMY4 = 123; //Always 0
public static final int PDU_HEADER_DUMMY5 = 124; //Always 0
public static final int PDU_HEADER_DUMMY6 = 125; //Always 0
public static final int[] PDU_HEADER_PAD_BLOCKS = { 126,127,128,129,130 };
public static final int PDU_HEADER_RESYNCHRONIZE_FLAG = 131;
public static final int[] PDU_HEADER_SEQUENCE_NUMBER = { 132,133,134 };
public static final int[] PDU_HEADER_FRAGMENT_SEQUENCE_NUMBER = { 135,136,
137,138 };
public static final int PDU_HEADER_DUMMY7 = 139; //Always 0
public static final int PDU_HEADER_DUMMY8 = 140; //Always 0
public static final int[] PDU_HEADER_DATA_HEADER_OFFSET = { 141,142,143,
144,145,146 };
public static final int[] PDU_HEADER_CRC = { 147,148,149,150,151,152,153,154,
155,156,157,158,159,160,161,162 };
public static final int CONFIRMATION_REQUIRED_INDICATOR = 65;
public static final int PACKET_DIRECTION_INDICATOR = 66;
public static final int[] FORMAT = { 67,68,69,70,71 };
public static final int[] SAP_ID = { 74,75,76,77,78,79 };
public static final int[] VENDOR_ID = { 80,81,82,83,84,85,86,87 };
public static final int[] LOGICAL_LINK_ID = { 88,89,90,91,92,93,94,95,96,97,
98,99,100,101,102,103,104,105,106,107,108,109,110,111 };
public static final int[] BLOCKS_TO_FOLLOW = { 113,114,115,116,117,118,119 };
public static final int[] PAD_OCTET_COUNT = { 123,124,125,126,127 };
public static final int[] OPCODE = { 122,123,124,125,126,127 };
public static final int[] DATA_HEADER_OFFSET = { 138,139,140,141,142,143 };
public static final int[] PDU_CRC = { 144,145,146,147,148,149,150,151,152,
153,154,155,156,157,158,159 };
//status 166,167
public PDUMessage( BitSetBuffer message, DataUnitID duid, AliasList aliasList )
{
super( message, duid, aliasList );
}
public String getConfirmation()
protected String getMessageStub()
{
return mMessage.get( PDU_HEADER_CONFIRMATION_REQUIRED ) ? "CON" : "UNC";
}
public String getDirection()
{
return mMessage.get( PDU_HEADER_DIRECTION_FLAG ) ? "OSP" : "ISP";
}
public PDUFormat getFormat()
{
return PDUFormat.fromValue( mMessage.getInt( PDU_HEADER_FORMAT ) );
}
public ServiceAccessPoint getServiceAccessPoint()
{
return ServiceAccessPoint.fromValue( mMessage.getInt( PDU_HEADER_SAP_ID ) );
}
public Vendor getVendor()
{
return Vendor.fromValue( mMessage.getInt( PDU_HEADER_VENDOR_ID ) );
}
public String getLogicalLinkID()
{
return mMessage.getHex( PDU_HEADER_LOGICAL_LINK_ID, 6 );
}
public boolean isFullMessage()
{
return mMessage.get( PDU_HEADER_FULL_MESSAGE_FLAG );
}
public int getBlockCount()
{
return mMessage.getInt( PDU_HEADER_BLOCKS_TO_FOLLOW );
}
public int getPadBlockCount()
{
return mMessage.getInt( PDU_HEADER_PAD_BLOCKS );
}
public boolean isResync()
{
return mMessage.get( PDU_HEADER_RESYNCHRONIZE_FLAG );
}
public int getSequenceNumber()
{
return mMessage.getInt( PDU_HEADER_SEQUENCE_NUMBER );
}
public int getFragmentSequenceNumber()
{
return mMessage.getInt( PDU_HEADER_FRAGMENT_SEQUENCE_NUMBER );
}
public int getDataHeaderOffset()
{
return mMessage.getInt( PDU_HEADER_DATA_HEADER_OFFSET );
}
@Override
public String getMessage()
{
StringBuilder sb = new StringBuilder();
Vendor vendor = getVendor();
sb.append( "NAC:" );
sb.append( getNAC() );
sb.append( " " );
sb.append( getDUID().getLabel() );
if( vendor == Vendor.STANDARD )
{
sb.append( " " );
sb.append( getOpcode().getLabel() );
}
else
{
sb.append( " " );
sb.append( vendor.getLabel() );
sb.append( " OPCD:" );
sb.append( mMessage.getHex( OPCODE, 2 ) );
}
return sb.toString();
}
@Override
public String getMessage()
{
StringBuilder sb = new StringBuilder();
sb.append( getMessageStub() );
switch( getFormat() )
{
case ALTERNATE_MULTI_BLOCK_TRUNKING_CONTROL:
break;
case UNCONFIRMED_MULTI_BLOCK_TRUNKING_CONTROL:
sb.append( " PAD OCTETS:" + getPadOctetCount() );
sb.append( " DATA HDR OFFSET:" + getDataHeaderOffset() );
break;
default:
}
sb.append( " " );
sb.append( getConfirmation() );
sb.append( " " );
sb.append( getDirection() );
sb.append( " FMT:" );
sb.append( getFormat().getLabel() );
switch( getFormat() )
{
case ALTERNATE_MULTI_BLOCK_TRUNKING_CONTROL:
case UNCONFIRMED_MULTI_BLOCK_TRUNKING_CONTROL:
sb.append( " SAP:" );
sb.append( getServiceAccessPoint().getLabel() );
sb.append( " VEND:" );
sb.append( getVendor().getLabel() );
sb.append( " LLID:" );
sb.append( getLogicalLinkID() );
sb.append( " FMF:" );
sb.append( isFullMessage() ? "1" : "0" );
sb.append( " BLKS:" );
sb.append( getBlockCount() );
sb.append( " PAD:" );
sb.append( getPadBlockCount() );
sb.append( " RESYNC:" );
sb.append( isResync() ? "1" : "0" );
sb.append( " SEQ:" );
sb.append( getSequenceNumber() );
sb.append( " FRAG:" );
sb.append( getFragmentSequenceNumber() );
sb.append( " DHO:" );
sb.append( getDataHeaderOffset() );
break;
default:
}
sb.append( " SAP:" );
sb.append( getServiceAccessPoint().getLabel() );
sb.append( " VEND:" );
sb.append( getVendor().getLabel() );
sb.append( " LLID:" );
sb.append( getLogicalLinkID() );
sb.append( " BLKS TO FOLLOW:" );
sb.append( getBlocksToFollowCount() );
return sb.toString();
}
public String getConfirmation()
{
return mMessage.get( CONFIRMATION_REQUIRED_INDICATOR ) ? "CON" : "UNC";
}
public String getDirection()
{
return mMessage.get( PACKET_DIRECTION_INDICATOR ) ? "OSP" : "ISP";
}
public PDUFormat getFormat()
{
return PDUFormat.fromValue( mMessage.getInt( FORMAT ) );
}
public ServiceAccessPoint getServiceAccessPoint()
{
return ServiceAccessPoint.fromValue( mMessage.getInt( SAP_ID ) );
}
public Vendor getVendor()
{
return Vendor.fromValue( mMessage.getInt( VENDOR_ID ) );
}
public String getLogicalLinkID()
{
return mMessage.getHex( LOGICAL_LINK_ID, 6 );
}
public int getBlocksToFollowCount()
{
return mMessage.getInt( BLOCKS_TO_FOLLOW );
}
public int getPadOctetCount()
{
if( getFormat() == PDUFormat.UNCONFIRMED_MULTI_BLOCK_TRUNKING_CONTROL )
{
return mMessage.getInt( PAD_OCTET_COUNT );
}
return 0;
}
public Opcode getOpcode()
{
if( getFormat() == PDUFormat.ALTERNATE_MULTI_BLOCK_TRUNKING_CONTROL )
{
return Opcode.fromValue( mMessage.getInt( OPCODE ) );
}
return Opcode.UNKNOWN;
}
public int getDataHeaderOffset()
{
if( getFormat() == PDUFormat.UNCONFIRMED_MULTI_BLOCK_TRUNKING_CONTROL )
{
return mMessage.getInt( DATA_HEADER_OFFSET );
}
return 0;
}
}