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[cooja] plugins/analyzers/IEEE802154Analyzer: More verbose printout including FCF information

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This commit is contained in:
Enrico Joerns 2014-06-18 19:21:13 +02:00
parent 649a447c9a
commit dbebd123a5
1 changed files with 52 additions and 36 deletions
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88
tools/cooja/java/org/contikios/cooja/plugins/analyzers/IEEE802154Analyzer.java
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@ -7,20 +7,22 @@ import org.contikios.cooja.util.StringUtils;
public class IEEE802154Analyzer extends PacketAnalyzer {
/* TODO: fix this to be correct */
// Addressing modes
public static final int NO_ADDRESS = 0;
public static final int RSV_ADDRESS = 1;
public static final int SHORT_ADDRESS = 2;
public static final int LONG_ADDRESS = 3;
// Frame types
public static final int BEACONFRAME = 0x00;
public static final int DATAFRAME = 0x01;
public static final int ACKFRAME = 0x02;
public static final int CMDFRAME = 0x03;
// private static final byte[] BROADCAST_ADDR = {(byte)0xff, (byte)0xff};
private static final String[] typeS = {"-", "D", "A"};
private static final String[] typeVerbose = {"BEACON", "DATA", "ACK"};
private static final String[] typeS = {"-", "D", "A", "C"};
private static final String[] typeVerbose = {"BEACON", "DATA", "ACK", "CMD"};
private static final String[] addrModeNames = {"None", "Reserved", "Short", "Long"};
private PcapExporter pcapExporter;
// private int defaultAddressMode = LONG_ADDRESS;
@ -73,15 +75,18 @@ public class IEEE802154Analyzer extends PacketAnalyzer {
}
int pos = packet.pos;
int type = packet.data[pos + 0] & 7;
// int security = (packet.data[pos + 0] >> 3) & 1;
// int pending = (packet.data[pos + 0] >> 4) & 1;
// int ackRequired = (packet.data[pos + 0] >> 5) & 1;
int panCompression = (packet.data[pos + 0] >> 6) & 1;
int destAddrMode = (packet.data[pos + 1] >> 2) & 3;
// int frameVersion = (packet.data[pos + 1] >> 4) & 3;
int srcAddrMode = (packet.data[pos + 1] >> 6) & 3;
// FCF field
int fcfType = packet.data[pos + 0] & 0x07;
boolean fcfSecurity = ((packet.data[pos + 0] >> 3) & 0x01) != 0;
boolean fcfPending = ((packet.data[pos + 0] >> 4) & 0x01) != 0;
boolean fcfAckRequested = ((packet.data[pos + 0] >> 5) & 0x01) != 0;
boolean fcfIntraPAN = ((packet.data[pos + 0] >> 6) & 0x01) != 0;
int fcfDestAddrMode = (packet.data[pos + 1] >> 2) & 0x03;
int fcfFrameVersion = (packet.data[pos + 1] >> 4) & 0x03;
int fcfSrcAddrMode = (packet.data[pos + 1] >> 6) & 0x03;
// Sequence number
int seqNumber = packet.data[pos + 2] & 0xff;
// Addressing Fields
int destPanID = 0;
int srcPanID = 0;
byte[] sourceAddress = null;
@ -89,15 +94,15 @@ public class IEEE802154Analyzer extends PacketAnalyzer {
pos += 3;
if (destAddrMode > 0) {
if (fcfDestAddrMode > 0) {
destPanID = (packet.data[pos] & 0xff) + ((packet.data[pos + 1] & 0xff) << 8);
pos += 2;
if (destAddrMode == SHORT_ADDRESS) {
if (fcfDestAddrMode == SHORT_ADDRESS) {
destAddress = new byte[2];
destAddress[1] = packet.data[pos];
destAddress[0] = packet.data[pos + 1];
pos += 2;
} else if (destAddrMode == LONG_ADDRESS) {
} else if (fcfDestAddrMode == LONG_ADDRESS) {
destAddress = new byte[8];
for (int i = 0; i < 8; i++) {
destAddress[i] = packet.data[pos + 7 - i];
@ -106,19 +111,19 @@ public class IEEE802154Analyzer extends PacketAnalyzer {
}
}
if (srcAddrMode > 0) {
if (panCompression == 0) {
if (fcfSrcAddrMode > 0) {
if (fcfIntraPAN) {
srcPanID = destPanID;
} else {
srcPanID = (packet.data[pos] & 0xff) + ((packet.data[pos + 1] & 0xff) << 8);
pos += 2;
} else {
srcPanID = destPanID;
}
if (srcAddrMode == SHORT_ADDRESS) {
if (fcfSrcAddrMode == SHORT_ADDRESS) {
sourceAddress = new byte[2];
sourceAddress[1] = packet.data[pos];
sourceAddress[0] = packet.data[pos + 1];
pos += 2;
} else if (srcAddrMode == LONG_ADDRESS) {
} else if (fcfSrcAddrMode == LONG_ADDRESS) {
sourceAddress = new byte[8];
for (int i = 0; i < 8; i++) {
sourceAddress[i] = packet.data[pos + 7 - i];
@ -129,24 +134,25 @@ public class IEEE802154Analyzer extends PacketAnalyzer {
// int payloadLen = packet.data.length - pos;
brief.append("15.4 ");
brief.append(type < typeS.length ? typeS[type] : "?").append(' ');
brief.append(fcfType < typeS.length ? typeS[fcfType] : "?").append(' ');
verbose.append("<html><b>IEEE 802.15.4 ")
.append(type < typeVerbose.length ? typeVerbose[type] : "?")
.append(' ').append(seqNumber);
if (type != ACKFRAME) {
printAddress(brief, srcAddrMode, sourceAddress);
brief.append(' ');
printAddress(brief, destAddrMode, destAddress);
.append(fcfType < typeVerbose.length ? typeVerbose[fcfType] : "?")
.append("</b> #").append(seqNumber);
verbose.append("</b><br>From ");
if (fcfType != ACKFRAME) {
printAddress(brief, fcfSrcAddrMode, sourceAddress);
brief.append(' ');
printAddress(brief, fcfDestAddrMode, destAddress);
verbose.append("<br>From ");
if (srcPanID != 0) {
verbose.append("0x")
.append(StringUtils.toHex((byte) (srcPanID >> 8)))
.append(StringUtils.toHex((byte) (srcPanID & 0xff)))
.append('/');
}
printAddress(verbose, srcAddrMode, sourceAddress);
printAddress(verbose, fcfSrcAddrMode, sourceAddress);
verbose.append(" to ");
if (destPanID != 0) {
verbose.append("0x")
@ -154,18 +160,28 @@ public class IEEE802154Analyzer extends PacketAnalyzer {
.append(StringUtils.toHex((byte) (destPanID & 0xff)))
.append('/');
}
printAddress(verbose, destAddrMode, destAddress);
} else {
printAddress(verbose, fcfDestAddrMode, destAddress);
}
verbose.append("<br/>Sec = ").append(fcfSecurity)
.append(", Pend = ").append(fcfPending)
.append(", ACK = ").append(fcfAckRequested)
.append(", iPAN = ").append(fcfIntraPAN)
.append(", DestAddr = ").append(addrModeNames[fcfDestAddrMode])
.append(", Vers. = ").append(fcfFrameVersion)
.append(", SrcAddr = ").append(addrModeNames[fcfSrcAddrMode]);
/* update packet */
packet.pos = pos;
/* remove CRC from the packet */
packet.consumeBytesEnd(2);
if (fcfType == ACKFRAME) {
/* got ack - no more to do ... */
return ANALYSIS_OK_FINAL;
}
/* update packet */
packet.pos = pos;
packet.level = NETWORK_LEVEL;
/* remove CRC from the packet */
packet.consumeBytesEnd(2);
packet.llsender = sourceAddress;
packet.llreceiver = destAddress;
return ANALYSIS_OK_CONTINUE;