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[proxmark3-svn] / client / cmdhf.c
1 //-----------------------------------------------------------------------------
2 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
3 //
4 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
5 // at your option, any later version. See the LICENSE.txt file for the text of
6 // the license.
7 //-----------------------------------------------------------------------------
8 // High frequency commands
9 //-----------------------------------------------------------------------------
10
11 #include <stdio.h>
12 #include <string.h>
13 #include "proxmark3.h"
14 #include "graph.h"
15 #include "ui.h"
16 #include "cmdparser.h"
17 #include "cmdhf.h"
18 #include "cmdhf14a.h"
19 #include "cmdhf14b.h"
20 #include "cmdhf15.h"
21 #include "cmdhfepa.h"
22 #include "cmdhflegic.h"
23 #include "cmdhficlass.h"
24 #include "cmdhfmf.h"
25 #include "cmdhfmfu.h"
26 #include "cmdhfmfdes.h"
27 #include "cmdhftopaz.h"
28 #include "protocols.h"
29
30 static int CmdHelp(const char *Cmd);
31
32 int CmdHFTune(const char *Cmd) {
33 PrintAndLog("Measuring HF antenna, press button to exit");
34 UsbCommand c = {CMD_MEASURE_ANTENNA_TUNING_HF};
35 clearCommandBuffer();
36 SendCommand(&c);
37 return 0;
38 }
39
40
41 int applyIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
42 {
43 switch(cmd[0])
44 {
45 case ISO14443A_CMD_WUPA: snprintf(exp,size,"WUPA"); break;
46 case ISO14443A_CMD_ANTICOLL_OR_SELECT:{
47 // 93 20 = Anticollision (usage: 9320 - answer: 4bytes UID+1byte UID-bytes-xor)
48 // 93 70 = Select (usage: 9370+5bytes 9320 answer - answer: 1byte SAK)
49 if(cmd[1] == 0x70)
50 snprintf(exp,size,"SELECT_UID");
51 else
52 snprintf(exp,size,"ANTICOLL");
53 break;
54 }
55 case ISO14443A_CMD_ANTICOLL_OR_SELECT_2:{
56 //95 20 = Anticollision of cascade level2
57 //95 70 = Select of cascade level2
58 if(cmd[2] == 0x70)
59 snprintf(exp,size,"SELECT_UID-2");
60 else
61 snprintf(exp,size,"ANTICOLL-2");
62 break;
63 }
64 case ISO14443A_CMD_REQA: snprintf(exp,size,"REQA"); break;
65 case ISO14443A_CMD_READBLOCK: snprintf(exp,size,"READBLOCK(%d)",cmd[1]); break;
66 case ISO14443A_CMD_WRITEBLOCK: snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]); break;
67 case ISO14443A_CMD_HALT: snprintf(exp,size,"HALT"); break;
68 case ISO14443A_CMD_RATS: snprintf(exp,size,"RATS"); break;
69 case MIFARE_CMD_INC: snprintf(exp,size,"INC(%d)",cmd[1]); break;
70 case MIFARE_CMD_DEC: snprintf(exp,size,"DEC(%d)",cmd[1]); break;
71 case MIFARE_CMD_RESTORE: snprintf(exp,size,"RESTORE(%d)",cmd[1]); break;
72 case MIFARE_CMD_TRANSFER: snprintf(exp,size,"TRANSFER(%d)",cmd[1]); break;
73 case MIFARE_AUTH_KEYA:{
74 if ( cmdsize > 3)
75 snprintf(exp,size,"AUTH-A(%d)",cmd[1]);
76 else
77 // case MIFARE_ULEV1_VERSION : both 0x60.
78 snprintf(exp,size,"EV1 VERSION");
79 break;
80 }
81 case MIFARE_AUTH_KEYB: snprintf(exp,size,"AUTH-B(%d)",cmd[1]); break;
82 case MIFARE_MAGICWUPC1: snprintf(exp,size,"MAGIC WUPC1"); break;
83 case MIFARE_MAGICWUPC2: snprintf(exp,size,"MAGIC WUPC2"); break;
84 case MIFARE_MAGICWIPEC: snprintf(exp,size,"MAGIC WIPEC"); break;
85 case MIFARE_ULC_AUTH_1 : snprintf(exp,size,"AUTH "); break;
86 case MIFARE_ULC_AUTH_2 : snprintf(exp,size,"AUTH_ANSW"); break;
87 case MIFARE_ULEV1_AUTH :
88 if ( cmdsize == 7 )
89 snprintf(exp,size,"PWD-AUTH KEY: 0x%02x%02x%02x%02x", cmd[1], cmd[2], cmd[3], cmd[4] );
90 else
91 snprintf(exp,size,"PWD-AUTH");
92 break;
93 case MIFARE_ULEV1_FASTREAD : {
94 if ( cmdsize >=3 && cmd[2] <= 0xE6)
95 snprintf(exp,size,"READ RANGE (%d-%d)",cmd[1],cmd[2]);
96 else
97 snprintf(exp,size,"?");
98 break;
99 }
100 case MIFARE_ULC_WRITE : {
101 if ( cmd[1] < 0x21 )
102 snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]);
103 else
104 snprintf(exp,size,"?");
105 break;
106 }
107 case MIFARE_ULEV1_READ_CNT :{
108 if ( cmd[1] < 5 )
109 snprintf(exp,size,"READ CNT(%d)",cmd[1]);
110 else
111 snprintf(exp,size,"?");
112 break;
113 }
114 case MIFARE_ULEV1_INCR_CNT : {
115 if ( cmd[1] < 5 )
116 snprintf(exp,size,"INCR(%d)",cmd[1]);
117 else
118 snprintf(exp,size,"?");
119 break;
120 }
121 case MIFARE_ULEV1_READSIG : snprintf(exp,size,"READ_SIG"); break;
122 case MIFARE_ULEV1_CHECKTEAR : snprintf(exp,size,"CHK_TEARING(%d)",cmd[1]); break;
123 case MIFARE_ULEV1_VCSL : snprintf(exp,size,"VCSL"); break;
124 default: return 0;
125 }
126 return 1;
127 }
128
129 void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize){
130 applyIso14443a(exp, size, cmd, cmdsize);
131 }
132
133 void annotateIclass(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
134 {
135 switch(cmd[0])
136 {
137 case ICLASS_CMD_ACTALL: snprintf(exp,size,"ACTALL"); break;
138 case ICLASS_CMD_READ_OR_IDENTIFY:{
139 if(cmdsize > 1){
140 snprintf(exp,size,"READ(%d)",cmd[1]);
141 }else{
142 snprintf(exp,size,"IDENTIFY");
143 }
144 break;
145 }
146 case ICLASS_CMD_SELECT: snprintf(exp,size,"SELECT"); break;
147 case ICLASS_CMD_PAGESEL: snprintf(exp,size,"PAGESEL(%d)", cmd[1]); break;
148 case ICLASS_CMD_READCHECK_KC:snprintf(exp,size,"READCHECK[Kc](%d)", cmd[1]); break;
149 case ICLASS_CMD_READCHECK_KD:snprintf(exp,size,"READCHECK[Kd](%d)", cmd[1]); break;
150 case ICLASS_CMD_CHECK: snprintf(exp,size,"CHECK"); break;
151 case ICLASS_CMD_DETECT: snprintf(exp,size,"DETECT"); break;
152 case ICLASS_CMD_HALT: snprintf(exp,size,"HALT"); break;
153 case ICLASS_CMD_UPDATE: snprintf(exp,size,"UPDATE(%d)",cmd[1]); break;
154 case ICLASS_CMD_ACT: snprintf(exp,size,"ACT"); break;
155 case ICLASS_CMD_READ4: snprintf(exp,size,"READ4(%d)",cmd[1]); break;
156 default: snprintf(exp,size,"?"); break;
157 }
158 return;
159 }
160
161 void annotateIso15693(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
162 {
163
164 if(cmd[0] == 0x26)
165 {
166 switch(cmd[1]){
167 case ISO15693_INVENTORY :snprintf(exp, size, "INVENTORY");break;
168 case ISO15693_STAYQUIET :snprintf(exp, size, "STAY_QUIET");break;
169 default: snprintf(exp,size,"?"); break;
170
171 }
172 }else if(cmd[0] == 0x02)
173 {
174 switch(cmd[1])
175 {
176 case ISO15693_READBLOCK :snprintf(exp, size, "READBLOCK");break;
177 case ISO15693_WRITEBLOCK :snprintf(exp, size, "WRITEBLOCK");break;
178 case ISO15693_LOCKBLOCK :snprintf(exp, size, "LOCKBLOCK");break;
179 case ISO15693_READ_MULTI_BLOCK :snprintf(exp, size, "READ_MULTI_BLOCK");break;
180 case ISO15693_SELECT :snprintf(exp, size, "SELECT");break;
181 case ISO15693_RESET_TO_READY :snprintf(exp, size, "RESET_TO_READY");break;
182 case ISO15693_WRITE_AFI :snprintf(exp, size, "WRITE_AFI");break;
183 case ISO15693_LOCK_AFI :snprintf(exp, size, "LOCK_AFI");break;
184 case ISO15693_WRITE_DSFID :snprintf(exp, size, "WRITE_DSFID");break;
185 case ISO15693_LOCK_DSFID :snprintf(exp, size, "LOCK_DSFID");break;
186 case ISO15693_GET_SYSTEM_INFO :snprintf(exp, size, "GET_SYSTEM_INFO");break;
187 case ISO15693_READ_MULTI_SECSTATUS :snprintf(exp, size, "READ_MULTI_SECSTATUS");break;
188 default: snprintf(exp,size,"?"); break;
189 }
190 }
191 }
192
193 void annotateTopaz(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
194 {
195 switch(cmd[0]) {
196 case TOPAZ_REQA :snprintf(exp, size, "REQA");break;
197 case TOPAZ_WUPA :snprintf(exp, size, "WUPA");break;
198 case TOPAZ_RID :snprintf(exp, size, "RID");break;
199 case TOPAZ_RALL :snprintf(exp, size, "RALL");break;
200 case TOPAZ_READ :snprintf(exp, size, "READ");break;
201 case TOPAZ_WRITE_E :snprintf(exp, size, "WRITE-E");break;
202 case TOPAZ_WRITE_NE :snprintf(exp, size, "WRITE-NE");break;
203 case TOPAZ_RSEG :snprintf(exp, size, "RSEG");break;
204 case TOPAZ_READ8 :snprintf(exp, size, "READ8");break;
205 case TOPAZ_WRITE_E8 :snprintf(exp, size, "WRITE-E8");break;
206 case TOPAZ_WRITE_NE8 :snprintf(exp, size, "WRITE-NE8");break;
207 default :snprintf(exp,size,"?"); break;
208 }
209 }
210
211 // iso 7816-3
212 void annotateIso7816(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize){
213 // S-block
214 if ( (cmd[0] & 0xC0) && (cmdsize == 3) ) {
215 switch ( (cmd[0] & 0x3f) ) {
216 case 0x00 : snprintf(exp, size, "S-block RESYNCH req"); break;
217 case 0x20 : snprintf(exp, size, "S-block RESYNCH resp"); break;
218 case 0x01 : snprintf(exp, size, "S-block IFS req"); break;
219 case 0x21 : snprintf(exp, size, "S-block IFS resp"); break;
220 case 0x02 : snprintf(exp, size, "S-block ABORT req"); break;
221 case 0x22 : snprintf(exp, size, "S-block ABORT resp"); break;
222 case 0x03 : snprintf(exp, size, "S-block WTX reqt"); break;
223 case 0x23 : snprintf(exp, size, "S-block WTX resp"); break;
224 default : snprintf(exp, size, "S-block"); break;
225 }
226 }
227 // R-block (ack)
228 else if ( ((cmd[0] & 0xD0) == 0x80) && ( cmdsize > 2) ) {
229 if ( (cmd[0] & 0x10) == 0 )
230 snprintf(exp, size, "R-block ACK");
231 else
232 snprintf(exp, size, "R-block NACK");
233 }
234 // I-block
235 else {
236
237 int pos = (cmd[0] == 2 || cmd[0] == 3) ? 2 : 3;
238 switch ( cmd[pos] ){
239 case ISO7816_READ_BINARY :snprintf(exp, size, "READ BIN");break;
240 case ISO7816_WRITE_BINARY :snprintf(exp, size, "WRITE BIN");break;
241 case ISO7816_UPDATE_BINARY :snprintf(exp, size, "UPDATE BIN");break;
242 case ISO7816_ERASE_BINARY :snprintf(exp, size, "ERASE BIN");break;
243 case ISO7816_READ_RECORDS :snprintf(exp, size, "READ RECORDS");break;
244 case ISO7816_WRITE_RECORDS :snprintf(exp, size, "WRITE RECORDS");break;
245 case ISO7816_APPEND_RECORD :snprintf(exp, size, "APPEND RECORD");break;
246 case ISO7816_UPDATE_RECORD :snprintf(exp, size, "UPDATE RECORD");break;
247 case ISO7816_GET_DATA :snprintf(exp, size, "GET DATA");break;
248 case ISO7816_PUT_DATA :snprintf(exp, size, "PUT DATA");break;
249 case ISO7816_SELECT_FILE :snprintf(exp, size, "SELECT FILE");break;
250 case ISO7816_VERIFY :snprintf(exp, size, "VERIFY");break;
251 case ISO7816_INTERNAL_AUTHENTICATION :snprintf(exp, size, "INTERNAL AUTH");break;
252 case ISO7816_EXTERNAL_AUTHENTICATION :snprintf(exp, size, "EXTERNAL AUTH");break;
253 case ISO7816_GET_CHALLENGE :snprintf(exp, size, "GET CHALLENGE");break;
254 case ISO7816_MANAGE_CHANNEL :snprintf(exp, size, "MANAGE CHANNEL");break;
255 default :snprintf(exp,size,"?"); break;
256 }
257 }
258 }
259
260 // MIFARE DESFire
261 void annotateMfDesfire(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize){
262
263 // it's basically a ISO14443a tag, so try annotation from there
264 if (!applyIso14443a(exp, size, cmd, cmdsize)){
265 //PrintAndLog("rest");
266 //PrintAndLog("(%d)",cmd[0]);
267 // S-block 11xxx010
268 if ( (cmd[0] & 0xC0) && (cmdsize == 3) ) {
269 switch ( (cmd[0] & 0x30) ) {
270 case 0x30 : snprintf(exp, size, "S-block DESELECT"); break;
271 case 0x00 : snprintf(exp, size, "S-block WTX"); break;
272 default : snprintf(exp, size, "S-block"); break;
273 }
274 }
275 // R-block (ack) 101xx01x
276 else if ( ((cmd[0] & 0xB0) == 0xA0) && ( cmdsize > 2) ) {
277 if ( (cmd[0] & 0x10) == 0 )
278 snprintf(exp, size, "R-block ACK(%d)", (cmd[0] & 0x01));
279 else
280 snprintf(exp, size, "R-block NACK(%d)", (cmd[0] & 0x01));
281 }
282 // I-block 000xCN1x
283 else if ( (cmd[0] & 0xC0) == 0x00){
284 // PCB [CID] [NAD] [INF] CRC CRC
285 int pos = 1;
286 if ( (cmd[0] & 0x08) == 0x08) // cid byte following
287 pos = pos + 1;
288 if ( (cmd[0] & 0x04) == 0x04) // nad byte following
289 pos = pos + 1;
290 //PrintAndLog("[%d]",pos);
291 switch ( cmd[pos] ){
292 case MFDES_CREATE_APPLICATION :snprintf(exp, size, "CREATE APPLICATION");break;
293 case MFDES_DELETE_APPLICATION :snprintf(exp, size, "DELETE APPLICATION");break;
294 case MFDES_GET_APPLICATION_IDS :snprintf(exp, size, "GET APPLICATION IDS");break;
295 case MFDES_SELECT_APPLICATION :snprintf(exp, size, "SELECT APPLICATION");break;
296 case MFDES_FORMAT_PICC :snprintf(exp, size, "FORMAT PICC");break;
297 case MFDES_GET_VERSION :snprintf(exp, size, "GET VERSION");break;
298 case MFDES_READ_DATA :snprintf(exp, size, "READ DATA");break;
299 case MFDES_WRITE_DATA :snprintf(exp, size, "WRITE DATA");break;
300 case MFDES_GET_VALUE :snprintf(exp, size, "GET VALUE");break;
301 case MFDES_CREDIT :snprintf(exp, size, "CREDIT");break;
302 case MFDES_DEBIT :snprintf(exp, size, "DEBIT");break;
303 case MFDES_LIMITED_CREDIT :snprintf(exp, size, "LIMITED CREDIT");break;
304 case MFDES_WRITE_RECORD :snprintf(exp, size, "WRITE RECORD");break;
305 case MFDES_READ_RECORDS :snprintf(exp, size, "READ RECORDS");break;
306 case MFDES_CLEAR_RECORD_FILE :snprintf(exp, size, "CLEAR RECORD FILE");break;
307 case MFDES_COMMIT_TRANSACTION :snprintf(exp, size, "COMMIT TRANSACTION");break;
308 case MFDES_ABORT_TRANSACTION :snprintf(exp, size, "ABORT TRANSACTION");break;
309 case MFDES_GET_FREE_MEMORY :snprintf(exp, size, "GET FREE MEMORY");break;
310 case MFDES_GET_FILE_IDS :snprintf(exp, size, "GET FILE IDS");break;
311 case MFDES_GET_ISOFILE_IDS :snprintf(exp, size, "GET ISOFILE IDS");break;
312 case MFDES_GET_FILE_SETTINGS :snprintf(exp, size, "GET FILE SETTINGS");break;
313 case MFDES_CHANGE_FILE_SETTINGS :snprintf(exp, size, "CHANGE FILE SETTINGS");break;
314 case MFDES_CREATE_STD_DATA_FILE :snprintf(exp, size, "CREATE STD DATA FILE");break;
315 case MFDES_CREATE_BACKUP_DATA_FILE :snprintf(exp, size, "CREATE BACKUP DATA FILE");break;
316 case MFDES_CREATE_VALUE_FILE :snprintf(exp, size, "CREATE VALUE FILE");break;
317 case MFDES_CREATE_LINEAR_RECORD_FILE :snprintf(exp, size, "CREATE LINEAR RECORD FILE");break;
318 case MFDES_CREATE_CYCLIC_RECORD_FILE :snprintf(exp, size, "CREATE CYCLIC RECORD FILE");break;
319 case MFDES_DELETE_FILE :snprintf(exp, size, "DELETE FILE");break;
320 case MFDES_AUTHENTICATE :snprintf(exp, size, "AUTH NATIVE (keyNo %d)", cmd[pos+1]);break; // AUTHENTICATE_NATIVE
321 case MFDES_AUTHENTICATE_ISO :snprintf(exp, size, "AUTH ISO (keyNo %d)", cmd[pos+1]);break; // AUTHENTICATE_STANDARD
322 case MFDES_AUTHENTICATE_AES :snprintf(exp, size, "AUTH AES (keyNo %d)", cmd[pos+1]);break;
323 case MFDES_CHANGE_KEY_SETTINGS :snprintf(exp, size, "CHANGE KEY SETTINGS");break;
324 case MFDES_GET_KEY_SETTINGS :snprintf(exp, size, "GET KEY SETTINGS");break;
325 case MFDES_CHANGE_KEY :snprintf(exp, size, "CHANGE KEY");break;
326 case MFDES_GET_KEY_VERSION :snprintf(exp, size, "GET KEY VERSION");break;
327 case MFDES_AUTHENTICATION_FRAME :snprintf(exp, size, "AUTH FRAME / NEXT FRAME");break;
328 default :break;
329 }
330 }else{
331 // anything else
332 snprintf(exp,size,"?");
333 }
334 }
335 }
336
337 /**
338 06 00 = INITIATE
339 0E xx = SELECT ID (xx = Chip-ID)
340 0B = Get UID
341 08 yy = Read Block (yy = block number)
342 09 yy dd dd dd dd = Write Block (yy = block number; dd dd dd dd = data to be written)
343 0C = Reset to Inventory
344 0F = Completion
345 0A 11 22 33 44 55 66 = Authenticate (11 22 33 44 55 66 = data to authenticate)
346 **/
347
348 void annotateIso14443b(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
349 {
350 switch(cmd[0]){
351 case ISO14443B_REQB : {
352
353 switch ( cmd[2] & 0x07 ) {
354 case 0: snprintf(exp, size,"1 slot ");break;
355 case 1: snprintf(exp, size,"2 slots ");break;
356 case 2: snprintf(exp, size,"4 slots ");break;
357 case 3: snprintf(exp, size,"8 slots ");break;
358 default: snprintf(exp, size,"16 slots ");break;
359 }
360 if ( (cmd[2] & 0x8) )
361 snprintf(exp, size,"WUPB");
362 else
363 snprintf(exp, size,"REQB");
364 break;
365 }
366 case ISO14443B_ATTRIB : snprintf(exp,size,"ATTRIB");break;
367 case ISO14443B_HALT : snprintf(exp,size,"HALT");break;
368 case ISO14443B_INITIATE : snprintf(exp,size,"INITIATE");break;
369 case ISO14443B_SELECT : snprintf(exp,size,"SELECT(%d)",cmd[1]);break;
370 case ISO14443B_GET_UID : snprintf(exp,size,"GET UID");break;
371 case ISO14443B_READ_BLK : snprintf(exp,size,"READ_BLK(%d)", cmd[1]);break;
372 case ISO14443B_WRITE_BLK : snprintf(exp,size,"WRITE_BLK(%d)",cmd[1]);break;
373 case ISO14443B_RESET : snprintf(exp,size,"RESET");break;
374 case ISO14443B_COMPLETION : snprintf(exp,size,"COMPLETION");break;
375 case ISO14443B_AUTHENTICATE : snprintf(exp,size,"AUTHENTICATE");break;
376 case ISO14443B_PING : snprintf(exp,size,"PING");break;
377 case ISO14443B_PONG : snprintf(exp,size,"PONG");break;
378 default : snprintf(exp,size ,"?");break;
379 }
380 }
381
382 /**
383 * @brief iso14443A_CRC_check Checks CRC in command or response
384 * @param isResponse
385 * @param data
386 * @param len
387 * @return 0 : CRC-command, CRC not ok
388 * 1 : CRC-command, CRC ok
389 * 2 : Not crc-command
390 */
391
392 uint8_t iso14443A_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
393 {
394 uint8_t b1,b2;
395
396 if(len <= 2) return 2;
397
398 if(isResponse & (len < 6)) return 2;
399
400 ComputeCrc14443(CRC_14443_A, data, len-2, &b1, &b2);
401 if (b1 != data[len-2] || b2 != data[len-1]) {
402 return 0;
403 } else {
404 return 1;
405 }
406 }
407
408
409 /**
410 * @brief iso14443B_CRC_check Checks CRC in command or response
411 * @param isResponse
412 * @param data
413 * @param len
414 * @return 0 : CRC-command, CRC not ok
415 * 1 : CRC-command, CRC ok
416 * 2 : Not crc-command
417 */
418
419 uint8_t iso14443B_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
420 {
421 uint8_t b1,b2;
422
423 if(len <= 2) return 2;
424
425 ComputeCrc14443(CRC_14443_B, data, len-2, &b1, &b2);
426 if(b1 != data[len-2] || b2 != data[len-1]) {
427 return 0;
428 }
429 return 1;
430 }
431
432 /**
433 * @brief iclass_CRC_Ok Checks CRC in command or response
434 * @param isResponse
435 * @param data
436 * @param len
437 * @return 0 : CRC-command, CRC not ok
438 * 1 : CRC-command, CRC ok
439 * 2 : Not crc-command
440 */
441 uint8_t iclass_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
442 {
443 if(len < 4) return 2;//CRC commands (and responses) are all at least 4 bytes
444
445 uint8_t b1, b2;
446
447 if(!isResponse)//Commands to tag
448 {
449 /**
450 These commands should have CRC. Total length leftmost
451 4 READ
452 4 READ4
453 12 UPDATE - unsecured, ends with CRC16
454 14 UPDATE - secured, ends with signature instead
455 4 PAGESEL
456 **/
457 if(len == 4 || len == 12)//Covers three of them
458 {
459 //Don't include the command byte
460 ComputeCrc14443(CRC_ICLASS, (data+1), len-3, &b1, &b2);
461 return b1 == data[len -2] && b2 == data[len-1];
462 }
463 return 2;
464 }else{
465 /**
466 These tag responses should have CRC. Total length leftmost
467
468 10 READ data[8] crc[2]
469 34 READ4 data[32]crc[2]
470 10 UPDATE data[8] crc[2]
471 10 SELECT csn[8] crc[2]
472 10 IDENTIFY asnb[8] crc[2]
473 10 PAGESEL block1[8] crc[2]
474 10 DETECT csn[8] crc[2]
475
476 These should not
477
478 4 CHECK chip_response[4]
479 8 READCHECK data[8]
480 1 ACTALL sof[1]
481 1 ACT sof[1]
482
483 In conclusion, without looking at the command; any response
484 of length 10 or 34 should have CRC
485 **/
486 if(len != 10 && len != 34) return true;
487
488 ComputeCrc14443(CRC_ICLASS, data, len-2, &b1, &b2);
489 return b1 == data[len -2] && b2 == data[len-1];
490 }
491 }
492
493
494 bool is_last_record(uint16_t tracepos, uint8_t *trace, uint16_t traceLen)
495 {
496 return(tracepos + sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint16_t) >= traceLen);
497 }
498
499
500 bool next_record_is_response(uint16_t tracepos, uint8_t *trace)
501 {
502 uint16_t next_records_datalen = *((uint16_t *)(trace + tracepos + sizeof(uint32_t) + sizeof(uint16_t)));
503
504 return(next_records_datalen & 0x8000);
505 }
506
507
508 bool merge_topaz_reader_frames(uint32_t timestamp, uint32_t *duration, uint16_t *tracepos, uint16_t traceLen, uint8_t *trace, uint8_t *frame, uint8_t *topaz_reader_command, uint16_t *data_len)
509 {
510
511 #define MAX_TOPAZ_READER_CMD_LEN 16
512
513 uint32_t last_timestamp = timestamp + *duration;
514
515 if ((*data_len != 1) || (frame[0] == TOPAZ_WUPA) || (frame[0] == TOPAZ_REQA)) return false;
516
517 memcpy(topaz_reader_command, frame, *data_len);
518
519 while (!is_last_record(*tracepos, trace, traceLen) && !next_record_is_response(*tracepos, trace)) {
520 uint32_t next_timestamp = *((uint32_t *)(trace + *tracepos));
521 *tracepos += sizeof(uint32_t);
522 uint16_t next_duration = *((uint16_t *)(trace + *tracepos));
523 *tracepos += sizeof(uint16_t);
524 uint16_t next_data_len = *((uint16_t *)(trace + *tracepos)) & 0x7FFF;
525 *tracepos += sizeof(uint16_t);
526 uint8_t *next_frame = (trace + *tracepos);
527 *tracepos += next_data_len;
528 if ((next_data_len == 1) && (*data_len + next_data_len <= MAX_TOPAZ_READER_CMD_LEN)) {
529 memcpy(topaz_reader_command + *data_len, next_frame, next_data_len);
530 *data_len += next_data_len;
531 last_timestamp = next_timestamp + next_duration;
532 } else {
533 // rewind and exit
534 *tracepos = *tracepos - next_data_len - sizeof(uint16_t) - sizeof(uint16_t) - sizeof(uint32_t);
535 break;
536 }
537 uint16_t next_parity_len = (next_data_len-1)/8 + 1;
538 *tracepos += next_parity_len;
539 }
540
541 *duration = last_timestamp - timestamp;
542
543 return true;
544 }
545
546
547 uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, uint8_t protocol, bool showWaitCycles, bool markCRCBytes)
548 {
549 bool isResponse;
550 uint16_t data_len, parity_len;
551 uint32_t duration;
552 uint8_t topaz_reader_command[9];
553 uint32_t timestamp, first_timestamp, EndOfTransmissionTimestamp;
554 char explanation[30] = {0};
555
556 if (tracepos + sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint16_t) > traceLen) return traceLen;
557
558 first_timestamp = *((uint32_t *)(trace));
559 timestamp = *((uint32_t *)(trace + tracepos));
560
561 tracepos += 4;
562 duration = *((uint16_t *)(trace + tracepos));
563 tracepos += 2;
564 data_len = *((uint16_t *)(trace + tracepos));
565 tracepos += 2;
566
567 if (data_len & 0x8000) {
568 data_len &= 0x7fff;
569 isResponse = true;
570 } else {
571 isResponse = false;
572 }
573 parity_len = (data_len-1)/8 + 1;
574
575 if (tracepos + data_len + parity_len > traceLen) {
576 return traceLen;
577 }
578 uint8_t *frame = trace + tracepos;
579 tracepos += data_len;
580 uint8_t *parityBytes = trace + tracepos;
581 tracepos += parity_len;
582
583 if (protocol == TOPAZ && !isResponse) {
584 // topaz reader commands come in 1 or 9 separate frames with 7 or 8 Bits each.
585 // merge them:
586 if (merge_topaz_reader_frames(timestamp, &duration, &tracepos, traceLen, trace, frame, topaz_reader_command, &data_len)) {
587 frame = topaz_reader_command;
588 }
589 }
590
591 //Check the CRC status
592 uint8_t crcStatus = 2;
593
594 if (data_len > 2) {
595 switch (protocol) {
596 case ICLASS:
597 crcStatus = iclass_CRC_check(isResponse, frame, data_len);
598 break;
599 case ISO_14443B:
600 case TOPAZ:
601 crcStatus = iso14443B_CRC_check(isResponse, frame, data_len);
602 break;
603 case ISO_14443A:
604 case MFDES:
605 crcStatus = iso14443A_CRC_check(isResponse, frame, data_len);
606 break;
607 default:
608 break;
609 }
610 }
611 //0 CRC-command, CRC not ok
612 //1 CRC-command, CRC ok
613 //2 Not crc-command
614
615 //--- Draw the data column
616 char line[16][110];
617
618 for (int j = 0; j < data_len && j/16 < 16; j++) {
619
620 int oddparity = 0x01;
621 int k;
622
623 for (k=0 ; k<8 ; k++) {
624 oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01);
625 }
626 uint8_t parityBits = parityBytes[j>>3];
627 if (protocol != ISO_14443B && protocol != ISO_7816_4 && (isResponse || protocol == ISO_14443A) && (oddparity != ((parityBits >> (7-(j&0x0007))) & 0x01))) {
628 snprintf(line[j/16]+(( j % 16) * 4),110, "%02x! ", frame[j]);
629
630 } else {
631 snprintf(line[j/16]+(( j % 16) * 4),110, "%02x ", frame[j]);
632 }
633
634 }
635
636 if (markCRCBytes) {
637 //CRC-command
638 if(crcStatus == 0 || crcStatus == 1) {
639 char *pos1 = line[(data_len-2)/16]+(((data_len-2) % 16) * 4);
640 (*pos1) = '[';
641 char *pos2 = line[(data_len)/16]+(((data_len) % 16) * 4);
642 sprintf(pos2, "%c", ']');
643 }
644 }
645
646 if(data_len == 0 )
647 sprintf(line[0],"<empty trace - possible error>");
648
649
650 //--- Draw the CRC column
651 char *crc = (crcStatus == 0 ? "!crc" : (crcStatus == 1 ? " ok " : " "));
652
653 EndOfTransmissionTimestamp = timestamp + duration;
654
655 if(!isResponse)
656 {
657 switch(protocol) {
658 case ICLASS: annotateIclass(explanation,sizeof(explanation),frame,data_len); break;
659 case ISO_14443A: annotateIso14443a(explanation,sizeof(explanation),frame,data_len); break;
660 case MFDES: annotateMfDesfire(explanation,sizeof(explanation),frame,data_len); break;
661 case ISO_14443B: annotateIso14443b(explanation,sizeof(explanation),frame,data_len); break;
662 case TOPAZ: annotateTopaz(explanation,sizeof(explanation),frame,data_len); break;
663 case ISO_7816_4: annotateIso7816(explanation,sizeof(explanation),frame,data_len); break;
664 default: break;
665 }
666 }
667
668 int num_lines = MIN((data_len - 1)/16 + 1, 16);
669 for (int j = 0; j < num_lines ; j++) {
670 if (j == 0) {
671 PrintAndLog(" %10d | %10d | %s |%-64s | %s| %s",
672 (timestamp - first_timestamp),
673 (EndOfTransmissionTimestamp - first_timestamp),
674 (isResponse ? "Tag" : "Rdr"),
675 line[j],
676 (j == num_lines-1) ? crc : " ",
677 (j == num_lines-1) ? explanation : "");
678 } else {
679 PrintAndLog(" | | |%-64s | %s| %s",
680 line[j],
681 (j == num_lines-1) ? crc : " ",
682 (j == num_lines-1) ? explanation : "");
683 }
684 }
685
686 if (is_last_record(tracepos, trace, traceLen)) return traceLen;
687
688 if (showWaitCycles && !isResponse && next_record_is_response(tracepos, trace)) {
689 uint32_t next_timestamp = *((uint32_t *)(trace + tracepos));
690 PrintAndLog(" %10d | %10d | %s |fdt (Frame Delay Time): %d",
691 (EndOfTransmissionTimestamp - first_timestamp),
692 (next_timestamp - first_timestamp),
693 " ",
694 (next_timestamp - EndOfTransmissionTimestamp));
695 }
696
697 return tracepos;
698 }
699
700 int usage_hf_list(){
701 PrintAndLog("List protocol data in trace buffer.");
702 PrintAndLog("Usage: hf list <protocol> [f][c]");
703 PrintAndLog(" f - show frame delay times as well");
704 PrintAndLog(" c - mark CRC bytes");
705 PrintAndLog("Supported <protocol> values:");
706 PrintAndLog(" raw - just show raw data without annotations");
707 PrintAndLog(" 14a - interpret data as iso14443a communications");
708 PrintAndLog(" 14b - interpret data as iso14443b communications");
709 PrintAndLog(" des - interpret data as DESFire communications");
710 PrintAndLog(" iclass - interpret data as iclass communications");
711 PrintAndLog(" topaz - interpret data as topaz communications");
712 PrintAndLog(" 7816 - interpret data as iso7816-4 communications");
713 PrintAndLog("");
714 PrintAndLog("example: hf list 14a f");
715 PrintAndLog(" hf list iclass");
716 return 0;
717 }
718 int usage_hf_search(){
719 PrintAndLog("Usage: hf search");
720 PrintAndLog("Will try to find a HF read out of the unknown tag. Stops when found.");
721 PrintAndLog("Options:");
722 PrintAndLog(" h - This help");
723 PrintAndLog("");
724 return 0;
725 }
726 int usage_hf_snoop(){
727 PrintAndLog("Usage: hf snoop <skip pairs> <skip triggers>");
728 PrintAndLog("The high frequence snoop will assign all available memory on device for snooped data");
729 PrintAndLog("User the 'data samples' command to download from device, and 'data plot' to look at it");
730 PrintAndLog("Press button to quit the snooping.");
731 PrintAndLog("Options:");
732 PrintAndLog(" h - This help");
733 PrintAndLog(" <skip pairs> - skip sample pairs");
734 PrintAndLog(" <skip triggers> - skip number of triggers");
735 PrintAndLog("");
736 PrintAndLog("example: hf snoop");
737 PrintAndLog(" hf snoop 1000 0");
738 return 0;
739 }
740
741 int CmdHFList(const char *Cmd)
742 {
743 clearCommandBuffer();
744
745 bool showWaitCycles = false;
746 bool markCRCBytes = false;
747 char type[10] = {0};
748 //int tlen = param_getstr(Cmd,0,type);
749 char param1 = param_getchar(Cmd, 1);
750 char param2 = param_getchar(Cmd, 2);
751 bool errors = false;
752 uint8_t protocol = 0;
753
754 //Validate params H or empty
755 if (strlen(Cmd) < 1 || param1 == 'h' || param1 == 'H') return usage_hf_list();
756
757 //Validate params F,C
758 if(
759 (param1 != 0 && param1 != 'f' && param1 != 'c') ||
760 (param2 != 0 && param2 != 'f' && param2 != 'c')
761 ) {
762 return usage_hf_list();
763 }
764
765 param_getstr(Cmd,0,type);
766
767 // validate type of output
768 if(strcmp(type, "iclass") == 0) protocol = ICLASS;
769 else if(strcmp(type, "14a") == 0) protocol = ISO_14443A;
770 else if(strcmp(type, "14b") == 0) protocol = ISO_14443B;
771 else if(strcmp(type, "topaz")== 0) protocol = TOPAZ;
772 else if(strcmp(type, "7816")== 0) protocol = ISO_7816_4;
773 else if(strcmp(type,"des")== 0) protocol = MFDES;
774 else if(strcmp(type, "raw")== 0) protocol = -1;//No crc, no annotations
775 else errors = true;
776
777 if (errors) return usage_hf_list();
778
779 if (param1 == 'f' || param2 == 'f') showWaitCycles = true;
780 if (param1 == 'c' || param2 == 'c') markCRCBytes = true;
781
782 uint8_t *trace;
783 uint16_t tracepos = 0;
784 trace = malloc(USB_CMD_DATA_SIZE);
785
786 // Query for the size of the trace
787 UsbCommand response;
788 GetFromBigBuf(trace, USB_CMD_DATA_SIZE, 0);
789 WaitForResponse(CMD_ACK, &response);
790 uint16_t traceLen = response.arg[2];
791 if (traceLen > USB_CMD_DATA_SIZE) {
792 uint8_t *p = realloc(trace, traceLen);
793 if (p == NULL) {
794 PrintAndLog("Cannot allocate memory for trace");
795 free(trace);
796 return 2;
797 }
798 trace = p;
799 GetFromBigBuf(trace, traceLen, 0);
800 WaitForResponse(CMD_ACK, NULL);
801 }
802
803 PrintAndLog("Recorded Activity (TraceLen = %d bytes)", traceLen);
804 PrintAndLog("");
805 PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer");
806 PrintAndLog("iso14443a - All times are in carrier periods (1/13.56Mhz)");
807 PrintAndLog("iClass - Timings are not as accurate");
808 PrintAndLog("");
809 PrintAndLog(" Start | End | Src | Data (! denotes parity error) | CRC | Annotation |");
810 PrintAndLog("------------|------------|-----|-----------------------------------------------------------------|-----|--------------------|");
811
812 while(tracepos < traceLen)
813 {
814 tracepos = printTraceLine(tracepos, traceLen, trace, protocol, showWaitCycles, markCRCBytes);
815 }
816
817 free(trace);
818 return 0;
819 }
820
821 int CmdHFSearch(const char *Cmd){
822
823 char cmdp = param_getchar(Cmd, 0);
824 if (cmdp == 'h' || cmdp == 'H') return usage_hf_search();
825
826 PrintAndLog("");
827 int ans = CmdHF14AReader("s");
828
829 if (ans > 0) {
830 PrintAndLog("\nValid ISO14443-A Tag Found - Quiting Search\n");
831 return ans;
832 }
833 ans = CmdHF14BReader("s");
834 if (ans) {
835 PrintAndLog("\nValid ISO14443-B Tag Found - Quiting Search\n");
836 return ans;
837 }
838 ans = HFiClassReader("", false, false);
839 if (ans) {
840 PrintAndLog("\nValid iClass Tag (or PicoPass Tag) Found - Quiting Search\n");
841 return ans;
842 }
843 ans = HF15Reader("", false);
844 if (ans) {
845 PrintAndLog("\nValid ISO15693 Tag Found - Quiting Search\n");
846 return ans;
847 }
848 ans = CmdHFTopazReader("s");
849 if (ans == 0) {
850 PrintAndLog("\nValid Topaz Tag Found - Quiting Search\n");
851 return 1;
852 }
853 PrintAndLog("\nno known/supported 13.56 MHz tags found\n");
854 return 0;
855 }
856
857 int CmdHFSnoop(const char *Cmd)
858 {
859 char cmdp = param_getchar(Cmd, 0);
860 if (cmdp == 'h' || cmdp == 'H') return usage_hf_snoop();
861
862 int skippairs = param_get32ex(Cmd, 0, 0, 10);
863 int skiptriggers = param_get32ex(Cmd, 1, 0, 10);
864
865 UsbCommand c = {CMD_HF_SNIFFER, {skippairs, skiptriggers, 0}};
866 clearCommandBuffer();
867 SendCommand(&c);
868 return 0;
869 }
870
871 static command_t CommandTable[] = {
872 {"help", CmdHelp, 1, "This help"},
873 {"14a", CmdHF14A, 1, "{ ISO14443A RFIDs... }"},
874 {"14b", CmdHF14B, 1, "{ ISO14443B RFIDs... }"},
875 {"15", CmdHF15, 1, "{ ISO15693 RFIDs... }"},
876 {"epa", CmdHFEPA, 1, "{ German Identification Card... }"},
877 {"legic", CmdHFLegic, 1, "{ LEGIC RFIDs... }"},
878 {"iclass", CmdHFiClass, 1, "{ ICLASS RFIDs... }"},
879 {"mf", CmdHFMF, 1, "{ MIFARE RFIDs... }"},
880 {"mfu", CmdHFMFUltra, 1, "{ MIFARE Ultralight RFIDs... }"},
881 {"mfdes", CmdHFMFDes, 1, "{ MIFARE Desfire RFIDs... }"},
882 {"topaz", CmdHFTopaz, 1, "{ TOPAZ (NFC Type 1) RFIDs... }"},
883 {"tune", CmdHFTune, 0, "Continuously measure HF antenna tuning"},
884 {"list", CmdHFList, 1, "List protocol data in trace buffer"},
885 {"search", CmdHFSearch, 1, "Search for known HF tags [preliminary]"},
886 {"snoop", CmdHFSnoop, 0, "<samples to skip (10000)> <triggers to skip (1)> Generic LF/HF Snoop in Testing stage"},
887 {NULL, NULL, 0, NULL}
888 };
889
890 int CmdHF(const char *Cmd) {
891 clearCommandBuffer();
892 CmdsParse(CommandTable, Cmd);
893 return 0;
894 }
895
896 int CmdHelp(const char *Cmd) {
897 CmdsHelp(CommandTable);
898 return 0;
899 }
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