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5255c030 VP |
1 | /******************************************************************************* |
2 | * Copyright (c) 2014 Ericsson | |
3 | * | |
4 | * All rights reserved. This program and the accompanying materials are | |
5 | * made available under the terms of the Eclipse Public License v1.0 which | |
6 | * accompanies this distribution, and is available at | |
7 | * http://www.eclipse.org/legal/epl-v10.html | |
8 | * | |
9 | * Contributors: | |
10 | * Vincent Perot - Initial API and implementation | |
11 | *******************************************************************************/ | |
12 | ||
71f2817f | 13 | package org.eclipse.tracecompass.internal.pcap.core.protocol.tcp; |
5255c030 | 14 | |
5db5a3a4 AM |
15 | import static org.eclipse.tracecompass.common.core.NonNullUtils.checkNotNull; |
16 | ||
5255c030 VP |
17 | import java.nio.ByteBuffer; |
18 | import java.nio.ByteOrder; | |
19 | import java.util.Arrays; | |
20 | import java.util.Map; | |
21 | ||
5255c030 | 22 | import org.eclipse.jdt.annotation.Nullable; |
71f2817f AM |
23 | import org.eclipse.tracecompass.internal.pcap.core.packet.BadPacketException; |
24 | import org.eclipse.tracecompass.internal.pcap.core.packet.Packet; | |
25 | import org.eclipse.tracecompass.internal.pcap.core.protocol.PcapProtocol; | |
26 | import org.eclipse.tracecompass.internal.pcap.core.protocol.unknown.UnknownPacket; | |
27 | import org.eclipse.tracecompass.internal.pcap.core.trace.PcapFile; | |
28 | import org.eclipse.tracecompass.internal.pcap.core.util.ConversionHelper; | |
5255c030 VP |
29 | |
30 | import com.google.common.collect.ImmutableMap; | |
31 | import com.google.common.collect.ImmutableMap.Builder; | |
32 | ||
33 | /** | |
34 | * Class that represents a TCP packet. | |
35 | * | |
36 | * @author Vincent Perot | |
37 | */ | |
38 | public class TCPPacket extends Packet { | |
39 | ||
40 | private final @Nullable Packet fChildPacket; | |
41 | private final @Nullable ByteBuffer fPayload; | |
42 | ||
43 | private final int fSourcePort; | |
44 | private final int fDestinationPort; | |
45 | private final long fSequenceNumber; | |
46 | private final long fAcknowledgmentNumber; | |
47 | private final int fDataOffset; // in 4 bytes block | |
48 | private final byte fReservedField; | |
49 | private final boolean fNSFlag; | |
50 | private final boolean fCWRFlag; | |
51 | private final boolean fECEFlag; | |
52 | private final boolean fURGFlag; | |
53 | private final boolean fACKFlag; | |
54 | private final boolean fPSHFlag; | |
55 | private final boolean fRSTFlag; | |
56 | private final boolean fSYNFlag; | |
57 | private final boolean fFINFlag; | |
58 | private final int fWindowSize; | |
59 | private final int fChecksum; | |
60 | private final int fUrgentPointer; | |
61 | private final @Nullable byte[] fOptions; // TODO Interpret options. | |
62 | ||
63 | private @Nullable TCPEndpoint fSourceEndpoint; | |
64 | private @Nullable TCPEndpoint fDestinationEndpoint; | |
65 | ||
5db5a3a4 | 66 | private @Nullable Map<String, String> fFields; |
5255c030 VP |
67 | |
68 | /** | |
69 | * Constructor of the TCP Packet class. | |
70 | * | |
71 | * @param file | |
72 | * The file that contains this packet. | |
73 | * @param parent | |
74 | * The parent packet of this packet (the encapsulating packet). | |
75 | * @param packet | |
76 | * The entire packet (header and payload). | |
77 | * @throws BadPacketException | |
78 | * Thrown when the packet is erroneous. | |
79 | */ | |
80 | public TCPPacket(PcapFile file, @Nullable Packet parent, ByteBuffer packet) throws BadPacketException { | |
c88feda9 | 81 | super(file, parent, PcapProtocol.TCP); |
5255c030 VP |
82 | |
83 | // The endpoints are lazy loaded. They are defined in the get*Endpoint() | |
84 | // methods. | |
85 | fSourceEndpoint = null; | |
86 | fDestinationEndpoint = null; | |
87 | ||
88 | fFields = null; | |
89 | ||
90 | packet.order(ByteOrder.BIG_ENDIAN); | |
91 | packet.position(0); | |
92 | ||
93 | fSourcePort = ConversionHelper.unsignedShortToInt(packet.getShort()); | |
94 | fDestinationPort = ConversionHelper.unsignedShortToInt(packet.getShort()); | |
95 | fSequenceNumber = ConversionHelper.unsignedIntToLong(packet.getInt()); | |
96 | fAcknowledgmentNumber = ConversionHelper.unsignedIntToLong(packet.getInt()); | |
97 | ||
98 | byte storage = packet.get(); | |
99 | fDataOffset = ((storage & 0b11110000) >>> 4) & 0x000000FF; | |
100 | fReservedField = (byte) ((storage & 0b00001110) >>> 1); | |
101 | fNSFlag = isBitSet(storage, 0); | |
102 | ||
103 | storage = packet.get(); | |
104 | fCWRFlag = isBitSet(storage, 7); | |
105 | fECEFlag = isBitSet(storage, 6); | |
106 | fURGFlag = isBitSet(storage, 5); | |
107 | fACKFlag = isBitSet(storage, 4); | |
108 | fPSHFlag = isBitSet(storage, 3); | |
109 | fRSTFlag = isBitSet(storage, 2); | |
110 | fSYNFlag = isBitSet(storage, 1); | |
111 | fFINFlag = isBitSet(storage, 0); | |
112 | ||
113 | fWindowSize = ConversionHelper.unsignedShortToInt(packet.getShort()); | |
114 | fChecksum = ConversionHelper.unsignedShortToInt(packet.getShort()); | |
115 | fUrgentPointer = ConversionHelper.unsignedShortToInt(packet.getShort()); | |
116 | ||
117 | // Get options if any | |
118 | if (fDataOffset > TCPValues.DEFAULT_HEADER_LENGTH) { | |
119 | fOptions = new byte[(fDataOffset - TCPValues.DEFAULT_HEADER_LENGTH) * TCPValues.BLOCK_SIZE]; | |
120 | packet.get(fOptions); | |
121 | } else { | |
122 | fOptions = null; | |
123 | } | |
124 | ||
125 | // Get payload if any. | |
126 | if (packet.array().length - packet.position() > 0) { | |
127 | byte[] array = new byte[packet.array().length - packet.position()]; | |
128 | packet.get(array); | |
129 | ByteBuffer payload = ByteBuffer.wrap(array); | |
130 | payload.order(ByteOrder.BIG_ENDIAN); | |
131 | payload.position(0); | |
132 | fPayload = payload; | |
133 | } else { | |
134 | fPayload = null; | |
135 | } | |
136 | ||
137 | // find child packet | |
138 | fChildPacket = findChildPacket(); | |
139 | ||
140 | } | |
141 | ||
142 | @Override | |
143 | public @Nullable Packet getChildPacket() { | |
144 | return fChildPacket; | |
145 | } | |
146 | ||
147 | @Override | |
148 | public @Nullable ByteBuffer getPayload() { | |
149 | return fPayload; | |
150 | } | |
151 | ||
152 | /** | |
153 | * {@inheritDoc} | |
154 | * | |
155 | * See http://www.iana.org/assignments/service-names-port-numbers/service- | |
156 | * names-port-numbers.xhtml or | |
157 | * http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers | |
158 | */ | |
159 | @Override | |
160 | protected @Nullable Packet findChildPacket() throws BadPacketException { | |
161 | // TODO implement further protocols and update this | |
162 | ByteBuffer payload = fPayload; | |
163 | if (payload == null) { | |
164 | return null; | |
165 | } | |
166 | ||
167 | return new UnknownPacket(getPcapFile(), this, payload); | |
168 | } | |
169 | ||
170 | @Override | |
171 | public String toString() { | |
172 | final ByteBuffer payload = fPayload; | |
173 | int length = 0; | |
174 | if (payload != null) { | |
175 | length = payload.array().length; | |
176 | } | |
177 | ||
178 | String flagString = ""; // TODO Finish it. Im just too lazy. //$NON-NLS-1$ | |
179 | String string = getProtocol().getName() + ", Source Port: " + fSourcePort + ", Destination Port: " + fDestinationPort + //$NON-NLS-1$ //$NON-NLS-2$ | |
180 | "\nSequence Number: " + fSequenceNumber + ", Acknowledgment Number: " + fAcknowledgmentNumber + //$NON-NLS-1$ //$NON-NLS-2$ | |
181 | "\nHeader length: " + fDataOffset * TCPValues.BLOCK_SIZE + " bytes, Data length: " + length + //$NON-NLS-1$ //$NON-NLS-2$ | |
182 | "\n" + flagString + "Window size value: " + fWindowSize + ", Urgent Pointer: " + String.format("%s%04x", "0x", fUrgentPointer) + //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ | |
183 | "\nChecksum: " + String.format("%s%04x", "0x", fChecksum) + "\n"; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ | |
184 | final Packet child = fChildPacket; | |
185 | if (child != null) { | |
186 | return string + child.toString(); | |
187 | } | |
188 | return string; | |
189 | } | |
190 | ||
191 | /** | |
192 | * Getter method that returns the TCP Source Port. | |
193 | * | |
194 | * @return The source Port. | |
195 | */ | |
196 | public int getSourcePort() { | |
197 | return fSourcePort; | |
198 | } | |
199 | ||
200 | /** | |
201 | * Getter method that returns the TCP Destination Port. | |
202 | * | |
203 | * @return The destination Port. | |
204 | */ | |
205 | public int getDestinationPort() { | |
206 | return fDestinationPort; | |
207 | } | |
208 | ||
209 | /** | |
210 | * Getter method that returns the Sequence Number. The sequence number has a | |
211 | * dual role: | |
212 | * <ul> | |
213 | * <li>If the SYN flag is set (1), then this is the initial sequence number. | |
214 | * The sequence number of the actual first data byte and the acknowledged | |
215 | * number in the corresponding ACK are then this sequence number plus 1.</li> | |
216 | * <li>If the SYN flag is clear (0), then this is the accumulated sequence | |
217 | * number of the first data byte of this segment for the current session.</li> | |
218 | * </ul> | |
219 | * | |
220 | * Source: http://en.wikipedia.org/wiki/Transmission_Control_Protocol | |
221 | * | |
222 | * @return The Sequence Number. | |
223 | */ | |
224 | public long getSequenceNumber() { | |
225 | return fSequenceNumber; | |
226 | } | |
227 | ||
228 | /** | |
229 | * Getter method that returns the Acknowledgment Number. | |
230 | * | |
231 | * If the ACK flag is set then the value of this field is the next sequence | |
232 | * number that the receiver is expecting. This acknowledges receipt of all | |
233 | * prior bytes (if any). The first ACK sent by each end acknowledges the | |
234 | * other end's initial sequence number itself, but no data. | |
235 | * | |
236 | * Source: http://en.wikipedia.org/wiki/Transmission_Control_Protocol | |
237 | * | |
238 | * @return The Acknowledgment Number. | |
239 | */ | |
240 | public long getAcknowledgmentNumber() { | |
241 | return fAcknowledgmentNumber; | |
242 | } | |
243 | ||
244 | /** | |
245 | * Getter method that returns the size of the TCP header in 4 bytes data | |
246 | * block. The minimum size is 5 words and the maximum is 15 words. | |
247 | * | |
248 | * @return The Data Offset. | |
249 | */ | |
250 | public int getDataOffset() { | |
251 | return fDataOffset; | |
252 | } | |
253 | ||
254 | /** | |
255 | * Getter method that returns the Reserved field. This field is for future | |
256 | * use and should always be zero. In this library, it is used as a mean to | |
257 | * verify the validity of a TCP packet. | |
258 | * | |
259 | * @return The Reserved Field. | |
260 | */ | |
261 | public byte getReservedField() { | |
262 | return fReservedField; | |
263 | } | |
264 | ||
265 | /** | |
266 | * Getter method that returns the state of the NS flag. | |
267 | * | |
268 | * @return The state of the NS flag. | |
269 | */ | |
270 | public boolean isNSFlagSet() { | |
271 | return fNSFlag; | |
272 | } | |
273 | ||
274 | /** | |
275 | * Getter method that returns the state of the CWR flag. | |
276 | * | |
277 | * @return The state of the CWR flag. | |
278 | */ | |
279 | public boolean isCongestionWindowReducedFlagSet() { | |
280 | return fCWRFlag; | |
281 | } | |
282 | ||
283 | /** | |
284 | * Getter method that returns the state of the ECE flag. | |
285 | * | |
286 | * @return The state of the ECE flag. | |
287 | */ | |
288 | public boolean isECNEchoFlagSet() { | |
289 | return fECEFlag; | |
290 | } | |
291 | ||
292 | /** | |
293 | * Getter method that returns the state of the URG flag. | |
294 | * | |
295 | * @return The state of the URG flag. | |
296 | */ | |
297 | public boolean isUrgentFlagSet() { | |
298 | return fURGFlag; | |
299 | } | |
300 | ||
301 | /** | |
302 | * Getter method that returns the state of the ACK flag. | |
303 | * | |
304 | * @return The state of the ACK flag. | |
305 | */ | |
306 | public boolean isAcknowledgeFlagSet() { | |
307 | return fACKFlag; | |
308 | } | |
309 | ||
310 | /** | |
311 | * Getter method that returns the state of the PSH flag. | |
312 | * | |
313 | * @return The state of the PSH flag. | |
314 | */ | |
315 | public boolean isPushFlagSet() { | |
316 | return fPSHFlag; | |
317 | } | |
318 | ||
319 | /** | |
320 | * Getter method that returns the state of the RST flag. | |
321 | * | |
322 | * @return The state of the RST flag. | |
323 | */ | |
324 | public boolean isResetFlagSet() { | |
325 | return fRSTFlag; | |
326 | } | |
327 | ||
328 | /** | |
329 | * Getter method that returns the state of the SYN flag. | |
330 | * | |
331 | * @return The state of the SYN flag. | |
332 | */ | |
333 | public boolean isSynchronizationFlagSet() { | |
334 | return fSYNFlag; | |
335 | } | |
336 | ||
337 | /** | |
338 | * Getter method that returns the state of the FIN flag. | |
339 | * | |
340 | * @return The state of the FIN flag. | |
341 | */ | |
342 | public boolean isFinalFlagSet() { | |
343 | return fFINFlag; | |
344 | } | |
345 | ||
346 | /** | |
347 | * Getter method that returns the size of the windows, in windows size unit | |
348 | * (by default, bytes), that the sender of this packet is willing to | |
349 | * receive. | |
350 | * | |
351 | * @return The Window Size. | |
352 | */ | |
353 | public int getWindowSize() { | |
354 | return fWindowSize; | |
355 | } | |
356 | ||
357 | /** | |
358 | * Getter method that returns the checksum of this packet. This checksum may | |
359 | * be wrong if the packet is erroneous. | |
360 | * | |
361 | * @return The data and header checksum. | |
362 | */ | |
363 | public int getChecksum() { | |
364 | return fChecksum; | |
365 | } | |
366 | ||
367 | /** | |
368 | * Getter method that returns the Urgent Pointer. If the URG flag is set, | |
369 | * this field is an offset from the sequence number indicating the last | |
370 | * urgent data byte. | |
371 | * | |
372 | * @return The Urgent Pointer. | |
373 | */ | |
374 | public int getUrgentPointer() { | |
375 | return fUrgentPointer; | |
376 | } | |
377 | ||
378 | /** | |
379 | * Getter method that returns the options. This method returns null if no | |
380 | * options are present. | |
381 | * | |
382 | * @return The options of the packet. | |
383 | */ | |
384 | public @Nullable byte[] getOptions() { | |
385 | byte[] options = fOptions; | |
386 | if (options == null) { | |
387 | return null; | |
388 | } | |
389 | return Arrays.copyOf(options, options.length); | |
390 | } | |
391 | ||
392 | @Override | |
393 | public boolean validate() { | |
394 | // Not yet implemented. ATM, we consider that all packets are valid. | |
395 | // This is the case for all packets. | |
396 | // TODO Implement it. | |
397 | return true; | |
398 | } | |
399 | ||
400 | @Override | |
401 | public TCPEndpoint getSourceEndpoint() { | |
402 | @Nullable | |
403 | TCPEndpoint endpoint = fSourceEndpoint; | |
404 | if (endpoint == null) { | |
405 | endpoint = new TCPEndpoint(this, true); | |
406 | } | |
407 | fSourceEndpoint = endpoint; | |
408 | return fSourceEndpoint; | |
409 | } | |
410 | ||
411 | @Override | |
412 | public TCPEndpoint getDestinationEndpoint() { | |
413 | @Nullable | |
414 | TCPEndpoint endpoint = fDestinationEndpoint; | |
415 | ||
416 | if (endpoint == null) { | |
417 | endpoint = new TCPEndpoint(this, false); | |
418 | } | |
419 | fDestinationEndpoint = endpoint; | |
420 | return fDestinationEndpoint; | |
421 | } | |
422 | ||
423 | @Override | |
424 | public Map<String, String> getFields() { | |
5db5a3a4 | 425 | Map<String, String> map = fFields; |
5255c030 VP |
426 | if (map == null) { |
427 | Builder<String, String> builder = ImmutableMap.<String, String> builder() | |
428 | .put("Source Port", String.valueOf(fSourcePort)) //$NON-NLS-1$ | |
429 | .put("Destination Port", String.valueOf(fDestinationPort)) //$NON-NLS-1$ | |
430 | .put("Sequence Number", String.valueOf(fSequenceNumber)) //$NON-NLS-1$ | |
431 | .put("Acknowledgement Number", String.valueOf(fAcknowledgmentNumber)) //$NON-NLS-1$ | |
432 | .put("Length", String.valueOf(fDataOffset * TCPValues.BLOCK_SIZE) + " bytes") //$NON-NLS-1$ //$NON-NLS-2$ | |
433 | .put("ECN-Nonce Flag", String.valueOf(fNSFlag)) //$NON-NLS-1$ | |
434 | .put("Congestion Window Reduced Flag", String.valueOf(fCWRFlag)) //$NON-NLS-1$ | |
435 | .put("ECN-Echo Flag", String.valueOf(fECEFlag)) //$NON-NLS-1$ | |
436 | .put("Urgent Flag", String.valueOf(fURGFlag)) //$NON-NLS-1$ | |
437 | .put("ACK Flag", String.valueOf(fACKFlag)) //$NON-NLS-1$ | |
438 | .put("PSH Flag", String.valueOf(fPSHFlag)) //$NON-NLS-1$ | |
439 | .put("RST Flag", String.valueOf(fRSTFlag)) //$NON-NLS-1$ | |
440 | .put("SYN Flag", String.valueOf(fSYNFlag)) //$NON-NLS-1$ | |
441 | .put("FIN Flag", String.valueOf(fFINFlag)) //$NON-NLS-1$ | |
442 | .put("Window Size Value", String.valueOf(fWindowSize)) //$NON-NLS-1$ | |
443 | .put("Checksum", String.format("%s%04x", "0x", fChecksum)) //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ | |
444 | .put("Urgent Pointer", String.format("%s%04x", "0x", fUrgentPointer)); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ | |
445 | byte[] options = fOptions; | |
446 | if (options == null) { | |
447 | builder.put("Options", EMPTY_STRING); //$NON-NLS-1$ | |
448 | } else { | |
449 | builder.put("Options", ConversionHelper.bytesToHex(options, true)); //$NON-NLS-1$ | |
450 | ||
451 | } | |
5db5a3a4 AM |
452 | fFields = checkNotNull(builder.build()); |
453 | return fFields; | |
5255c030 VP |
454 | } |
455 | return map; | |
456 | } | |
457 | ||
458 | @Override | |
459 | public String getLocalSummaryString() { | |
460 | return "Src Port: " + fSourcePort + ", Dst Port: " + fDestinationPort + //$NON-NLS-1$ //$NON-NLS-2$ | |
461 | ", Seq: " + fSequenceNumber + ", Ack: " + fAcknowledgmentNumber + //$NON-NLS-1$ //$NON-NLS-2$ | |
462 | ", Len: " + (fDataOffset * TCPValues.BLOCK_SIZE); //$NON-NLS-1$ } | |
463 | } | |
464 | ||
465 | @Override | |
466 | protected String getSignificationString() { | |
467 | StringBuilder sb = new StringBuilder(); | |
468 | sb.append(fSourcePort) | |
469 | .append(" > ") //$NON-NLS-1$ | |
470 | .append(fDestinationPort); | |
471 | ||
472 | if (!(generateFlagString().equals(EMPTY_STRING))) { | |
473 | sb.append(' ') | |
474 | .append('[') | |
475 | .append(generateFlagString()) | |
476 | .append(']'); | |
477 | } | |
478 | sb.append(" Seq=") //$NON-NLS-1$ | |
479 | .append(fSequenceNumber); | |
480 | ||
481 | if (fACKFlag) { | |
482 | sb.append(" Ack=") //$NON-NLS-1$ | |
483 | .append(fAcknowledgmentNumber); | |
484 | } | |
485 | ||
e3e03611 VP |
486 | sb.append(" Len=") //$NON-NLS-1$ |
487 | .append((fDataOffset * TCPValues.BLOCK_SIZE)); | |
5255c030 VP |
488 | |
489 | String string = sb.toString(); | |
490 | if (string == null) { | |
491 | return EMPTY_STRING; | |
492 | } | |
493 | return string; | |
494 | } | |
495 | ||
496 | private String generateFlagString() { | |
497 | StringBuilder sb = new StringBuilder(); | |
498 | boolean start = true; | |
499 | ||
500 | if (fSYNFlag) { | |
501 | if (!start) { | |
502 | sb.append(", "); //$NON-NLS-1$ | |
503 | } | |
504 | sb.append("SYN"); //$NON-NLS-1$ | |
505 | start = false; | |
506 | } | |
507 | if (fACKFlag) { | |
508 | if (!start) { | |
509 | sb.append(", "); //$NON-NLS-1$ | |
510 | } | |
511 | sb.append("ACK"); //$NON-NLS-1$ | |
512 | start = false; | |
513 | } | |
514 | if (fFINFlag) { | |
515 | if (!start) { | |
516 | sb.append(", "); //$NON-NLS-1$ | |
517 | } | |
518 | sb.append("FIN"); //$NON-NLS-1$ | |
519 | start = false; | |
520 | } | |
521 | if (fRSTFlag) { | |
522 | if (!start) { | |
523 | sb.append(", "); //$NON-NLS-1$ | |
524 | } | |
525 | sb.append("RST"); //$NON-NLS-1$ | |
526 | start = false; | |
527 | } | |
528 | if (fPSHFlag) { | |
529 | if (!start) { | |
530 | sb.append(", "); //$NON-NLS-1$ | |
531 | } | |
532 | sb.append("PSH"); //$NON-NLS-1$ | |
533 | start = false; | |
534 | } | |
535 | if (fURGFlag) { | |
536 | if (!start) { | |
537 | sb.append(", "); //$NON-NLS-1$ | |
538 | } | |
539 | sb.append("URG"); //$NON-NLS-1$ | |
540 | start = false; | |
541 | } | |
542 | if (fNSFlag) { | |
543 | if (!start) { | |
544 | sb.append(", "); //$NON-NLS-1$ | |
545 | } | |
546 | sb.append("NS"); //$NON-NLS-1$ | |
547 | start = false; | |
548 | } | |
549 | if (fCWRFlag) { | |
550 | if (!start) { | |
551 | sb.append(", "); //$NON-NLS-1$ | |
552 | } | |
553 | sb.append("CWR"); //$NON-NLS-1$ | |
554 | start = false; | |
555 | } | |
556 | if (fECEFlag) { | |
557 | if (!start) { | |
558 | sb.append(", "); //$NON-NLS-1$ | |
559 | } | |
560 | sb.append("ECE"); //$NON-NLS-1$ | |
561 | start = false; | |
562 | } | |
563 | String string = sb.toString(); | |
564 | if (string == null) { | |
565 | return EMPTY_STRING; | |
566 | } | |
567 | return string; | |
568 | } | |
569 | ||
570 | @Override | |
571 | public int hashCode() { | |
572 | final int prime = 31; | |
573 | int result = 1; | |
574 | result = prime * result + (fACKFlag ? 1231 : 1237); | |
575 | result = prime * result + (int) (fAcknowledgmentNumber ^ (fAcknowledgmentNumber >>> 32)); | |
576 | result = prime * result + (fCWRFlag ? 1231 : 1237); | |
577 | result = prime * result + fChecksum; | |
578 | final Packet child = fChildPacket; | |
579 | if (child != null) { | |
580 | result = prime * result + child.hashCode(); | |
581 | } else { | |
582 | result = prime * result; | |
583 | } | |
584 | result = prime * result + fDataOffset; | |
585 | result = prime * result + fDestinationPort; | |
586 | result = prime * result + (fECEFlag ? 1231 : 1237); | |
587 | result = prime * result + (fFINFlag ? 1231 : 1237); | |
588 | result = prime * result + (fNSFlag ? 1231 : 1237); | |
589 | result = prime * result + Arrays.hashCode(fOptions); | |
590 | result = prime * result + (fPSHFlag ? 1231 : 1237); | |
591 | final ByteBuffer payload = fPayload; | |
592 | if (payload != null) { | |
593 | result = prime * result + payload.hashCode(); | |
594 | } else { | |
595 | result = prime * result; | |
596 | } | |
597 | result = prime * result + (fRSTFlag ? 1231 : 1237); | |
598 | result = prime * result + fReservedField; | |
599 | result = prime * result + (fSYNFlag ? 1231 : 1237); | |
600 | result = prime * result + (int) (fSequenceNumber ^ (fSequenceNumber >>> 32)); | |
601 | result = prime * result + fSourcePort; | |
602 | result = prime * result + (fURGFlag ? 1231 : 1237); | |
603 | result = prime * result + fUrgentPointer; | |
604 | result = prime * result + fWindowSize; | |
605 | return result; | |
606 | } | |
607 | ||
608 | @Override | |
609 | public boolean equals(@Nullable Object obj) { | |
610 | if (this == obj) { | |
611 | return true; | |
612 | } | |
613 | if (obj == null) { | |
614 | return false; | |
615 | } | |
616 | if (getClass() != obj.getClass()) { | |
617 | return false; | |
618 | } | |
619 | TCPPacket other = (TCPPacket) obj; | |
620 | if (fACKFlag != other.fACKFlag) { | |
621 | return false; | |
622 | } | |
623 | if (fAcknowledgmentNumber != other.fAcknowledgmentNumber) { | |
624 | return false; | |
625 | } | |
626 | if (fCWRFlag != other.fCWRFlag) { | |
627 | return false; | |
628 | } | |
629 | if (fChecksum != other.fChecksum) { | |
630 | return false; | |
631 | } | |
632 | final Packet child = fChildPacket; | |
633 | if (child != null) { | |
634 | if (!child.equals(other.fChildPacket)) { | |
635 | return false; | |
636 | } | |
637 | } else { | |
638 | if (other.fChildPacket != null) { | |
639 | return false; | |
640 | } | |
641 | } | |
642 | ||
643 | if (fDataOffset != other.fDataOffset) { | |
644 | return false; | |
645 | } | |
646 | if (fDestinationPort != other.fDestinationPort) { | |
647 | return false; | |
648 | } | |
649 | if (fECEFlag != other.fECEFlag) { | |
650 | return false; | |
651 | } | |
652 | if (fFINFlag != other.fFINFlag) { | |
653 | return false; | |
654 | } | |
655 | if (fNSFlag != other.fNSFlag) { | |
656 | return false; | |
657 | } | |
658 | if (!Arrays.equals(fOptions, other.fOptions)) { | |
659 | return false; | |
660 | } | |
661 | if (fPSHFlag != other.fPSHFlag) { | |
662 | return false; | |
663 | } | |
664 | final ByteBuffer fPayload2 = fPayload; | |
665 | if (fPayload2 != null) { | |
666 | if (!fPayload2.equals(other.fPayload)) { | |
667 | return false; | |
668 | } | |
669 | } else { | |
670 | if (other.fPayload != null) { | |
671 | return false; | |
672 | } | |
673 | } | |
674 | if (fRSTFlag != other.fRSTFlag) { | |
675 | return false; | |
676 | } | |
677 | if (fReservedField != other.fReservedField) { | |
678 | return false; | |
679 | } | |
680 | if (fSYNFlag != other.fSYNFlag) { | |
681 | return false; | |
682 | } | |
683 | if (fSequenceNumber != other.fSequenceNumber) { | |
684 | return false; | |
685 | } | |
686 | if (fSourcePort != other.fSourcePort) { | |
687 | return false; | |
688 | } | |
689 | if (fURGFlag != other.fURGFlag) { | |
690 | return false; | |
691 | } | |
692 | if (fUrgentPointer != other.fUrgentPointer) { | |
693 | return false; | |
694 | } | |
695 | if (fWindowSize != other.fWindowSize) { | |
696 | return false; | |
697 | } | |
698 | return true; | |
699 | } | |
700 | ||
701 | } |