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CHG: better annotation for 'legic'
[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 int applyIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) {
41 switch ( cmd[0] ){
42 case ISO14443A_CMD_WUPA: snprintf(exp,size,"WUPA"); break;
43 case ISO14443A_CMD_ANTICOLL_OR_SELECT:{
44 // 93 20 = Anticollision (usage: 9320 - answer: 4bytes UID+1byte UID-bytes-xor)
45 // 93 70 = Select (usage: 9370+5bytes 9320 answer - answer: 1byte SAK)
46 if(cmd[1] == 0x70)
47 snprintf(exp,size,"SELECT_UID");
48 else
49 snprintf(exp,size,"ANTICOLL");
50 break;
51 }
52 case ISO14443A_CMD_ANTICOLL_OR_SELECT_2:{
53 //95 20 = Anticollision of cascade level2
54 //95 70 = Select of cascade level2
55 if(cmd[2] == 0x70)
56 snprintf(exp,size,"SELECT_UID-2");
57 else
58 snprintf(exp,size,"ANTICOLL-2");
59 break;
60 }
61 case ISO14443A_CMD_REQA: snprintf(exp,size,"REQA"); break;
62 case ISO14443A_CMD_READBLOCK: snprintf(exp,size,"READBLOCK(%d)",cmd[1]); break;
63 case ISO14443A_CMD_WRITEBLOCK: snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]); break;
64 case ISO14443A_CMD_HALT: snprintf(exp,size,"HALT"); break;
65 case ISO14443A_CMD_RATS: snprintf(exp,size,"RATS"); break;
66 case MIFARE_CMD_INC: snprintf(exp,size,"INC(%d)",cmd[1]); break;
67 case MIFARE_CMD_DEC: snprintf(exp,size,"DEC(%d)",cmd[1]); break;
68 case MIFARE_CMD_RESTORE: snprintf(exp,size,"RESTORE(%d)",cmd[1]); break;
69 case MIFARE_CMD_TRANSFER: snprintf(exp,size,"TRANSFER(%d)",cmd[1]); break;
70 case MIFARE_AUTH_KEYA:{
71 if ( cmdsize > 3)
72 snprintf(exp,size,"AUTH-A(%d)",cmd[1]);
73 else
74 // case MIFARE_ULEV1_VERSION : both 0x60.
75 snprintf(exp,size,"EV1 VERSION");
76 break;
77 }
78 case MIFARE_AUTH_KEYB: snprintf(exp,size,"AUTH-B(%d)",cmd[1]); break;
79 case MIFARE_MAGICWUPC1: snprintf(exp,size,"MAGIC WUPC1"); break;
80 case MIFARE_MAGICWUPC2: snprintf(exp,size,"MAGIC WUPC2"); break;
81 case MIFARE_MAGICWIPEC: snprintf(exp,size,"MAGIC WIPEC"); break;
82 case MIFARE_ULC_AUTH_1 : snprintf(exp,size,"AUTH "); break;
83 case MIFARE_ULC_AUTH_2 : snprintf(exp,size,"AUTH_ANSW"); break;
84 case MIFARE_ULEV1_AUTH :
85 if ( cmdsize == 7 )
86 snprintf(exp,size,"PWD-AUTH KEY: 0x%02x%02x%02x%02x", cmd[1], cmd[2], cmd[3], cmd[4] );
87 else
88 snprintf(exp,size,"PWD-AUTH");
89 break;
90 case MIFARE_ULEV1_FASTREAD : {
91 if ( cmdsize >=3 && cmd[2] <= 0xE6)
92 snprintf(exp,size,"READ RANGE (%d-%d)",cmd[1],cmd[2]);
93 else
94 snprintf(exp,size,"?");
95 break;
96 }
97 case MIFARE_ULC_WRITE : {
98 if ( cmd[1] < 0x21 )
99 snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]);
100 else
101 snprintf(exp,size,"?");
102 break;
103 }
104 case MIFARE_ULEV1_READ_CNT :{
105 if ( cmd[1] < 5 )
106 snprintf(exp,size,"READ CNT(%d)",cmd[1]);
107 else
108 snprintf(exp,size,"?");
109 break;
110 }
111 case MIFARE_ULEV1_INCR_CNT : {
112 if ( cmd[1] < 5 )
113 snprintf(exp,size,"INCR(%d)",cmd[1]);
114 else
115 snprintf(exp,size,"?");
116 break;
117 }
118 case MIFARE_ULEV1_READSIG : snprintf(exp,size,"READ_SIG"); break;
119 case MIFARE_ULEV1_CHECKTEAR : snprintf(exp,size,"CHK_TEARING(%d)",cmd[1]); break;
120 case MIFARE_ULEV1_VCSL : snprintf(exp,size,"VCSL"); break;
121 default: return 0;
122 }
123 return 1;
124 }
125
126 void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) {
127 applyIso14443a(exp, size, cmd, cmdsize);
128 }
129
130 void annotateIclass(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) {
131 switch (cmd[0]) {
132 case ICLASS_CMD_ACTALL: snprintf(exp,size,"ACTALL"); break;
133 case ICLASS_CMD_READ_OR_IDENTIFY:{
134 if(cmdsize > 1){
135 snprintf(exp,size,"READ(%d)",cmd[1]);
136 }else{
137 snprintf(exp,size,"IDENTIFY");
138 }
139 break;
140 }
141 case ICLASS_CMD_SELECT: snprintf(exp,size,"SELECT"); break;
142 case ICLASS_CMD_PAGESEL: snprintf(exp,size,"PAGESEL(%d)", cmd[1]); break;
143 case ICLASS_CMD_READCHECK_KC:snprintf(exp,size,"READCHECK[Kc](%d)", cmd[1]); break;
144 case ICLASS_CMD_READCHECK_KD:snprintf(exp,size,"READCHECK[Kd](%d)", cmd[1]); break;
145 case ICLASS_CMD_CHECK: snprintf(exp,size,"CHECK"); break;
146 case ICLASS_CMD_DETECT: snprintf(exp,size,"DETECT"); break;
147 case ICLASS_CMD_HALT: snprintf(exp,size,"HALT"); break;
148 case ICLASS_CMD_UPDATE: snprintf(exp,size,"UPDATE(%d)",cmd[1]); break;
149 case ICLASS_CMD_ACT: snprintf(exp,size,"ACT"); break;
150 case ICLASS_CMD_READ4: snprintf(exp,size,"READ4(%d)",cmd[1]); break;
151 default: snprintf(exp,size,"?"); break;
152 }
153 return;
154 }
155
156 void annotateIso15693(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) {
157 if(cmd[0] == 0x26) {
158 switch(cmd[1]){
159 case ISO15693_INVENTORY :snprintf(exp, size, "INVENTORY");break;
160 case ISO15693_STAYQUIET :snprintf(exp, size, "STAY_QUIET");break;
161 default :snprintf(exp,size,"?"); break;
162 }
163 } else if(cmd[0] == 0x02) {
164 switch (cmd[1]) {
165 case ISO15693_READBLOCK :snprintf(exp, size, "READBLOCK");break;
166 case ISO15693_WRITEBLOCK :snprintf(exp, size, "WRITEBLOCK");break;
167 case ISO15693_LOCKBLOCK :snprintf(exp, size, "LOCKBLOCK");break;
168 case ISO15693_READ_MULTI_BLOCK :snprintf(exp, size, "READ_MULTI_BLOCK");break;
169 case ISO15693_SELECT :snprintf(exp, size, "SELECT");break;
170 case ISO15693_RESET_TO_READY :snprintf(exp, size, "RESET_TO_READY");break;
171 case ISO15693_WRITE_AFI :snprintf(exp, size, "WRITE_AFI");break;
172 case ISO15693_LOCK_AFI :snprintf(exp, size, "LOCK_AFI");break;
173 case ISO15693_WRITE_DSFID :snprintf(exp, size, "WRITE_DSFID");break;
174 case ISO15693_LOCK_DSFID :snprintf(exp, size, "LOCK_DSFID");break;
175 case ISO15693_GET_SYSTEM_INFO :snprintf(exp, size, "GET_SYSTEM_INFO");break;
176 case ISO15693_READ_MULTI_SECSTATUS :snprintf(exp, size, "READ_MULTI_SECSTATUS");break;
177 default: snprintf(exp,size,"?"); break;
178 }
179 }
180 }
181
182 void annotateTopaz(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize){
183 switch(cmd[0]) {
184 case TOPAZ_REQA :snprintf(exp, size, "REQA");break;
185 case TOPAZ_WUPA :snprintf(exp, size, "WUPA");break;
186 case TOPAZ_RID :snprintf(exp, size, "RID");break;
187 case TOPAZ_RALL :snprintf(exp, size, "RALL");break;
188 case TOPAZ_READ :snprintf(exp, size, "READ");break;
189 case TOPAZ_WRITE_E :snprintf(exp, size, "WRITE-E");break;
190 case TOPAZ_WRITE_NE :snprintf(exp, size, "WRITE-NE");break;
191 case TOPAZ_RSEG :snprintf(exp, size, "RSEG");break;
192 case TOPAZ_READ8 :snprintf(exp, size, "READ8");break;
193 case TOPAZ_WRITE_E8 :snprintf(exp, size, "WRITE-E8");break;
194 case TOPAZ_WRITE_NE8 :snprintf(exp, size, "WRITE-NE8");break;
195 default :snprintf(exp,size,"?"); break;
196 }
197 }
198
199 // iso 7816-3
200 void annotateIso7816(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize){
201 // S-block
202 if ( (cmd[0] & 0xC0) && (cmdsize == 3) ) {
203 switch ( (cmd[0] & 0x3f) ) {
204 case 0x00 : snprintf(exp, size, "S-block RESYNCH req"); break;
205 case 0x20 : snprintf(exp, size, "S-block RESYNCH resp"); break;
206 case 0x01 : snprintf(exp, size, "S-block IFS req"); break;
207 case 0x21 : snprintf(exp, size, "S-block IFS resp"); break;
208 case 0x02 : snprintf(exp, size, "S-block ABORT req"); break;
209 case 0x22 : snprintf(exp, size, "S-block ABORT resp"); break;
210 case 0x03 : snprintf(exp, size, "S-block WTX reqt"); break;
211 case 0x23 : snprintf(exp, size, "S-block WTX resp"); break;
212 default : snprintf(exp, size, "S-block"); break;
213 }
214 }
215 // R-block (ack)
216 else if ( ((cmd[0] & 0xD0) == 0x80) && ( cmdsize > 2) ) {
217 if ( (cmd[0] & 0x10) == 0 )
218 snprintf(exp, size, "R-block ACK");
219 else
220 snprintf(exp, size, "R-block NACK");
221 }
222 // I-block
223 else {
224
225 int pos = (cmd[0] == 2 || cmd[0] == 3) ? 2 : 3;
226 switch ( cmd[pos] ){
227 case ISO7816_READ_BINARY :snprintf(exp, size, "READ BIN");break;
228 case ISO7816_WRITE_BINARY :snprintf(exp, size, "WRITE BIN");break;
229 case ISO7816_UPDATE_BINARY :snprintf(exp, size, "UPDATE BIN");break;
230 case ISO7816_ERASE_BINARY :snprintf(exp, size, "ERASE BIN");break;
231 case ISO7816_READ_RECORDS :snprintf(exp, size, "READ RECORDS");break;
232 case ISO7816_WRITE_RECORDS :snprintf(exp, size, "WRITE RECORDS");break;
233 case ISO7816_APPEND_RECORD :snprintf(exp, size, "APPEND RECORD");break;
234 case ISO7816_UPDATE_RECORD :snprintf(exp, size, "UPDATE RECORD");break;
235 case ISO7816_GET_DATA :snprintf(exp, size, "GET DATA");break;
236 case ISO7816_PUT_DATA :snprintf(exp, size, "PUT DATA");break;
237 case ISO7816_SELECT_FILE :snprintf(exp, size, "SELECT FILE");break;
238 case ISO7816_VERIFY :snprintf(exp, size, "VERIFY");break;
239 case ISO7816_INTERNAL_AUTHENTICATION :snprintf(exp, size, "INTERNAL AUTH");break;
240 case ISO7816_EXTERNAL_AUTHENTICATION :snprintf(exp, size, "EXTERNAL AUTH");break;
241 case ISO7816_GET_CHALLENGE :snprintf(exp, size, "GET CHALLENGE");break;
242 case ISO7816_MANAGE_CHANNEL :snprintf(exp, size, "MANAGE CHANNEL");break;
243 default :snprintf(exp,size,"?"); break;
244 }
245 }
246 }
247
248 // MIFARE DESFire
249 void annotateMfDesfire(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize){
250
251 // it's basically a ISO14443a tag, so try annotation from there
252 if (!applyIso14443a(exp, size, cmd, cmdsize)){
253 //PrintAndLog("rest");
254 //PrintAndLog("(%d)",cmd[0]);
255 // S-block 11xxx010
256 if ( (cmd[0] & 0xC0) && (cmdsize == 3) ) {
257 switch ( (cmd[0] & 0x30) ) {
258 case 0x30 : snprintf(exp, size, "S-block DESELECT"); break;
259 case 0x00 : snprintf(exp, size, "S-block WTX"); break;
260 default : snprintf(exp, size, "S-block"); break;
261 }
262 }
263 // R-block (ack) 101xx01x
264 else if ( ((cmd[0] & 0xB0) == 0xA0) && ( cmdsize > 2) ) {
265 if ( (cmd[0] & 0x10) == 0 )
266 snprintf(exp, size, "R-block ACK(%d)", (cmd[0] & 0x01));
267 else
268 snprintf(exp, size, "R-block NACK(%d)", (cmd[0] & 0x01));
269 }
270 // I-block 000xCN1x
271 else if ( (cmd[0] & 0xC0) == 0x00){
272 // PCB [CID] [NAD] [INF] CRC CRC
273 int pos = 1;
274 if ( (cmd[0] & 0x08) == 0x08) // cid byte following
275 pos = pos + 1;
276 if ( (cmd[0] & 0x04) == 0x04) // nad byte following
277 pos = pos + 1;
278 //PrintAndLog("[%d]",pos);
279 switch ( cmd[pos] ){
280 case MFDES_CREATE_APPLICATION :snprintf(exp, size, "CREATE APPLICATION");break;
281 case MFDES_DELETE_APPLICATION :snprintf(exp, size, "DELETE APPLICATION");break;
282 case MFDES_GET_APPLICATION_IDS :snprintf(exp, size, "GET APPLICATION IDS");break;
283 case MFDES_SELECT_APPLICATION :snprintf(exp, size, "SELECT APPLICATION");break;
284 case MFDES_FORMAT_PICC :snprintf(exp, size, "FORMAT PICC");break;
285 case MFDES_GET_VERSION :snprintf(exp, size, "GET VERSION");break;
286 case MFDES_READ_DATA :snprintf(exp, size, "READ DATA");break;
287 case MFDES_WRITE_DATA :snprintf(exp, size, "WRITE DATA");break;
288 case MFDES_GET_VALUE :snprintf(exp, size, "GET VALUE");break;
289 case MFDES_CREDIT :snprintf(exp, size, "CREDIT");break;
290 case MFDES_DEBIT :snprintf(exp, size, "DEBIT");break;
291 case MFDES_LIMITED_CREDIT :snprintf(exp, size, "LIMITED CREDIT");break;
292 case MFDES_WRITE_RECORD :snprintf(exp, size, "WRITE RECORD");break;
293 case MFDES_READ_RECORDS :snprintf(exp, size, "READ RECORDS");break;
294 case MFDES_CLEAR_RECORD_FILE :snprintf(exp, size, "CLEAR RECORD FILE");break;
295 case MFDES_COMMIT_TRANSACTION :snprintf(exp, size, "COMMIT TRANSACTION");break;
296 case MFDES_ABORT_TRANSACTION :snprintf(exp, size, "ABORT TRANSACTION");break;
297 case MFDES_GET_FREE_MEMORY :snprintf(exp, size, "GET FREE MEMORY");break;
298 case MFDES_GET_FILE_IDS :snprintf(exp, size, "GET FILE IDS");break;
299 case MFDES_GET_ISOFILE_IDS :snprintf(exp, size, "GET ISOFILE IDS");break;
300 case MFDES_GET_FILE_SETTINGS :snprintf(exp, size, "GET FILE SETTINGS");break;
301 case MFDES_CHANGE_FILE_SETTINGS :snprintf(exp, size, "CHANGE FILE SETTINGS");break;
302 case MFDES_CREATE_STD_DATA_FILE :snprintf(exp, size, "CREATE STD DATA FILE");break;
303 case MFDES_CREATE_BACKUP_DATA_FILE :snprintf(exp, size, "CREATE BACKUP DATA FILE");break;
304 case MFDES_CREATE_VALUE_FILE :snprintf(exp, size, "CREATE VALUE FILE");break;
305 case MFDES_CREATE_LINEAR_RECORD_FILE :snprintf(exp, size, "CREATE LINEAR RECORD FILE");break;
306 case MFDES_CREATE_CYCLIC_RECORD_FILE :snprintf(exp, size, "CREATE CYCLIC RECORD FILE");break;
307 case MFDES_DELETE_FILE :snprintf(exp, size, "DELETE FILE");break;
308 case MFDES_AUTHENTICATE :snprintf(exp, size, "AUTH NATIVE (keyNo %d)", cmd[pos+1]);break; // AUTHENTICATE_NATIVE
309 case MFDES_AUTHENTICATE_ISO :snprintf(exp, size, "AUTH ISO (keyNo %d)", cmd[pos+1]);break; // AUTHENTICATE_STANDARD
310 case MFDES_AUTHENTICATE_AES :snprintf(exp, size, "AUTH AES (keyNo %d)", cmd[pos+1]);break;
311 case MFDES_CHANGE_KEY_SETTINGS :snprintf(exp, size, "CHANGE KEY SETTINGS");break;
312 case MFDES_GET_KEY_SETTINGS :snprintf(exp, size, "GET KEY SETTINGS");break;
313 case MFDES_CHANGE_KEY :snprintf(exp, size, "CHANGE KEY");break;
314 case MFDES_GET_KEY_VERSION :snprintf(exp, size, "GET KEY VERSION");break;
315 case MFDES_AUTHENTICATION_FRAME :snprintf(exp, size, "AUTH FRAME / NEXT FRAME");break;
316 default :break;
317 }
318 }else{
319 // anything else
320 snprintf(exp,size,"?");
321 }
322 }
323 }
324
325 /**
326 06 00 = INITIATE
327 0E xx = SELECT ID (xx = Chip-ID)
328 0B = Get UID
329 08 yy = Read Block (yy = block number)
330 09 yy dd dd dd dd = Write Block (yy = block number; dd dd dd dd = data to be written)
331 0C = Reset to Inventory
332 0F = Completion
333 0A 11 22 33 44 55 66 = Authenticate (11 22 33 44 55 66 = data to authenticate)
334 **/
335
336 void annotateIso14443b(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) {
337 switch(cmd[0]){
338 case ISO14443B_REQB : {
339
340 switch ( cmd[2] & 0x07 ) {
341 case 0: snprintf(exp, size,"1 slot ");break;
342 case 1: snprintf(exp, size,"2 slots ");break;
343 case 2: snprintf(exp, size,"4 slots ");break;
344 case 3: snprintf(exp, size,"8 slots ");break;
345 default: snprintf(exp, size,"16 slots ");break;
346 }
347 if ( (cmd[2] & 0x8) )
348 snprintf(exp, size,"WUPB");
349 else
350 snprintf(exp, size,"REQB");
351 break;
352 }
353 case ISO14443B_ATTRIB : snprintf(exp,size,"ATTRIB");break;
354 case ISO14443B_HALT : snprintf(exp,size,"HALT");break;
355 case ISO14443B_INITIATE : snprintf(exp,size,"INITIATE");break;
356 case ISO14443B_SELECT : snprintf(exp,size,"SELECT(%d)",cmd[1]);break;
357 case ISO14443B_GET_UID : snprintf(exp,size,"GET UID");break;
358 case ISO14443B_READ_BLK : snprintf(exp,size,"READ_BLK(%d)", cmd[1]);break;
359 case ISO14443B_WRITE_BLK : snprintf(exp,size,"WRITE_BLK(%d)",cmd[1]);break;
360 case ISO14443B_RESET : snprintf(exp,size,"RESET");break;
361 case ISO14443B_COMPLETION : snprintf(exp,size,"COMPLETION");break;
362 case ISO14443B_AUTHENTICATE : snprintf(exp,size,"AUTHENTICATE");break;
363 case ISO14443B_PING : snprintf(exp,size,"PING");break;
364 case ISO14443B_PONG : snprintf(exp,size,"PONG");break;
365 default : snprintf(exp,size ,"?");break;
366 }
367 }
368
369 // LEGIC
370 // 1 = read
371 // 0 = write
372 // Quite simpel tag
373 void annotateLegic(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize){
374
375 if ( cmdsize > 1) {
376
377 uint8_t cmdBit = (cmd[0] & 1);
378 uint8_t address = (cmd[1] << 7) | cmd[0] >> 1;
379
380 if (cmdBit == LEGIC_READ)
381 snprintf(exp, size, "READ Byte(%d)", address);
382 else if (cmdBit == LEGIC_WRITE )
383 snprintf(exp, size, "WRITE Byte(%d)", address);
384 else
385 snprintf(exp, size, "?");
386
387 } else {
388 if ( cmd[0] == LEGIC_HSK_22 ) snprintf(exp, size, "MIM22");
389 if ( cmd[0] == LEGIC_HSK_256 ) snprintf(exp, size, "MIN256/1024");
390 }
391 }
392
393 /**
394 * @brief iso14443A_CRC_check Checks CRC in command or response
395 * @param isResponse
396 * @param data
397 * @param len
398 * @return 0 : CRC-command, CRC not ok
399 * 1 : CRC-command, CRC ok
400 * 2 : Not crc-command
401 */
402
403 uint8_t iso14443A_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
404 {
405 uint8_t b1,b2;
406
407 if(len <= 2) return 2;
408
409 if(isResponse & (len < 6)) return 2;
410
411 ComputeCrc14443(CRC_14443_A, data, len-2, &b1, &b2);
412 if (b1 != data[len-2] || b2 != data[len-1]) {
413 return 0;
414 } else {
415 return 1;
416 }
417 }
418
419
420 /**
421 * @brief iso14443B_CRC_check Checks CRC in command or response
422 * @param isResponse
423 * @param data
424 * @param len
425 * @return 0 : CRC-command, CRC not ok
426 * 1 : CRC-command, CRC ok
427 * 2 : Not crc-command
428 */
429
430 uint8_t iso14443B_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
431 {
432 uint8_t b1,b2;
433
434 if(len <= 2) return 2;
435
436 ComputeCrc14443(CRC_14443_B, data, len-2, &b1, &b2);
437 if(b1 != data[len-2] || b2 != data[len-1]) {
438 return 0;
439 }
440 return 1;
441 }
442
443 /**
444 * @brief iclass_CRC_Ok Checks CRC in command or response
445 * @param isResponse
446 * @param data
447 * @param len
448 * @return 0 : CRC-command, CRC not ok
449 * 1 : CRC-command, CRC ok
450 * 2 : Not crc-command
451 */
452 uint8_t iclass_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
453 {
454 if(len < 4) return 2;//CRC commands (and responses) are all at least 4 bytes
455
456 uint8_t b1, b2;
457
458 if(!isResponse)//Commands to tag
459 {
460 /**
461 These commands should have CRC. Total length leftmost
462 4 READ
463 4 READ4
464 12 UPDATE - unsecured, ends with CRC16
465 14 UPDATE - secured, ends with signature instead
466 4 PAGESEL
467 **/
468 if(len == 4 || len == 12)//Covers three of them
469 {
470 //Don't include the command byte
471 ComputeCrc14443(CRC_ICLASS, (data+1), len-3, &b1, &b2);
472 return b1 == data[len -2] && b2 == data[len-1];
473 }
474 return 2;
475 }else{
476 /**
477 These tag responses should have CRC. Total length leftmost
478
479 10 READ data[8] crc[2]
480 34 READ4 data[32]crc[2]
481 10 UPDATE data[8] crc[2]
482 10 SELECT csn[8] crc[2]
483 10 IDENTIFY asnb[8] crc[2]
484 10 PAGESEL block1[8] crc[2]
485 10 DETECT csn[8] crc[2]
486
487 These should not
488
489 4 CHECK chip_response[4]
490 8 READCHECK data[8]
491 1 ACTALL sof[1]
492 1 ACT sof[1]
493
494 In conclusion, without looking at the command; any response
495 of length 10 or 34 should have CRC
496 **/
497 if(len != 10 && len != 34) return true;
498
499 ComputeCrc14443(CRC_ICLASS, data, len-2, &b1, &b2);
500 return b1 == data[len -2] && b2 == data[len-1];
501 }
502 }
503
504 uint8_t legic_CRC_check(bool isResponse, uint8_t* data, uint8_t len){
505 if (len > 2) return 2;
506
507 uint8_t calccrc = CRC8Legic(data, len);
508
509 return 0;
510 // crc_init(&legic_crc, 4, 0x19 >> 1, 0x5, 0);
511 // crc_clear(&legic_crc);
512 // crc_update(&legic_crc, 1, 1); /* CMD_READ */
513 // crc_update(&legic_crc, byte_index, cmd_sz-1);
514 // crc_update(&legic_crc, value, 8);
515 // return crc_finish(&legic_crc);
516 }
517
518 bool is_last_record(uint16_t tracepos, uint8_t *trace, uint16_t traceLen)
519 {
520 return(tracepos + sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint16_t) >= traceLen);
521 }
522
523
524 bool next_record_is_response(uint16_t tracepos, uint8_t *trace)
525 {
526 uint16_t next_records_datalen = *((uint16_t *)(trace + tracepos + sizeof(uint32_t) + sizeof(uint16_t)));
527
528 return(next_records_datalen & 0x8000);
529 }
530
531
532 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)
533 {
534
535 #define MAX_TOPAZ_READER_CMD_LEN 16
536
537 uint32_t last_timestamp = timestamp + *duration;
538
539 if ((*data_len != 1) || (frame[0] == TOPAZ_WUPA) || (frame[0] == TOPAZ_REQA)) return false;
540
541 memcpy(topaz_reader_command, frame, *data_len);
542
543 while (!is_last_record(*tracepos, trace, traceLen) && !next_record_is_response(*tracepos, trace)) {
544 uint32_t next_timestamp = *((uint32_t *)(trace + *tracepos));
545 *tracepos += sizeof(uint32_t);
546 uint16_t next_duration = *((uint16_t *)(trace + *tracepos));
547 *tracepos += sizeof(uint16_t);
548 uint16_t next_data_len = *((uint16_t *)(trace + *tracepos)) & 0x7FFF;
549 *tracepos += sizeof(uint16_t);
550 uint8_t *next_frame = (trace + *tracepos);
551 *tracepos += next_data_len;
552 if ((next_data_len == 1) && (*data_len + next_data_len <= MAX_TOPAZ_READER_CMD_LEN)) {
553 memcpy(topaz_reader_command + *data_len, next_frame, next_data_len);
554 *data_len += next_data_len;
555 last_timestamp = next_timestamp + next_duration;
556 } else {
557 // rewind and exit
558 *tracepos = *tracepos - next_data_len - sizeof(uint16_t) - sizeof(uint16_t) - sizeof(uint32_t);
559 break;
560 }
561 uint16_t next_parity_len = (next_data_len-1)/8 + 1;
562 *tracepos += next_parity_len;
563 }
564
565 *duration = last_timestamp - timestamp;
566
567 return true;
568 }
569
570
571 uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, uint8_t protocol, bool showWaitCycles, bool markCRCBytes)
572 {
573 bool isResponse;
574 uint16_t data_len, parity_len;
575 uint32_t duration;
576 uint8_t topaz_reader_command[9];
577 uint32_t timestamp, first_timestamp, EndOfTransmissionTimestamp;
578 char explanation[30] = {0};
579
580 if (tracepos + sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint16_t) > traceLen) return traceLen;
581
582 first_timestamp = *((uint32_t *)(trace));
583 timestamp = *((uint32_t *)(trace + tracepos));
584
585 tracepos += 4;
586 duration = *((uint16_t *)(trace + tracepos));
587 tracepos += 2;
588 data_len = *((uint16_t *)(trace + tracepos));
589 tracepos += 2;
590
591 if (data_len & 0x8000) {
592 data_len &= 0x7fff;
593 isResponse = true;
594 } else {
595 isResponse = false;
596 }
597 parity_len = (data_len-1)/8 + 1;
598
599 if (tracepos + data_len + parity_len > traceLen) {
600 return traceLen;
601 }
602 uint8_t *frame = trace + tracepos;
603 tracepos += data_len;
604 uint8_t *parityBytes = trace + tracepos;
605 tracepos += parity_len;
606
607 if (protocol == TOPAZ && !isResponse) {
608 // topaz reader commands come in 1 or 9 separate frames with 7 or 8 Bits each.
609 // merge them:
610 if (merge_topaz_reader_frames(timestamp, &duration, &tracepos, traceLen, trace, frame, topaz_reader_command, &data_len)) {
611 frame = topaz_reader_command;
612 }
613 }
614
615 //Check the CRC status
616 uint8_t crcStatus = 2;
617
618 if (data_len > 2) {
619 switch (protocol) {
620 case ICLASS:
621 crcStatus = iclass_CRC_check(isResponse, frame, data_len);
622 break;
623 case ISO_14443B:
624 case TOPAZ:
625 crcStatus = iso14443B_CRC_check(isResponse, frame, data_len);
626 break;
627 case ISO_14443A:
628 case MFDES:
629 crcStatus = iso14443A_CRC_check(isResponse, frame, data_len);
630 break;
631 default:
632 break;
633 }
634 } else if ( data_len == 2 && protocol == LEGIC ){
635 crcStatus = legic_CRC_check(isResponse, frame, data_len);
636 }
637 //0 CRC-command, CRC not ok
638 //1 CRC-command, CRC ok
639 //2 Not crc-command
640
641 //--- Draw the data column
642 char line[16][110];
643
644 for (int j = 0; j < data_len && j/16 < 16; j++) {
645
646 int oddparity = 0x01;
647 int k;
648
649 for (k=0 ; k<8 ; k++) {
650 oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01);
651 }
652 uint8_t parityBits = parityBytes[j>>3];
653 if (protocol != ISO_14443B && protocol != ISO_7816_4 && (isResponse || protocol == ISO_14443A) && (oddparity != ((parityBits >> (7-(j&0x0007))) & 0x01))) {
654 snprintf(line[j/16]+(( j % 16) * 4),110, "%02x! ", frame[j]);
655
656 } else {
657 snprintf(line[j/16]+(( j % 16) * 4),110, "%02x ", frame[j]);
658 }
659
660 }
661
662 if (markCRCBytes) {
663 //CRC-command
664 if(crcStatus == 0 || crcStatus == 1) {
665 char *pos1 = line[(data_len-2)/16]+(((data_len-2) % 16) * 4);
666 (*pos1) = '[';
667 char *pos2 = line[(data_len)/16]+(((data_len) % 16) * 4);
668 sprintf(pos2, "%c", ']');
669 }
670 }
671
672 if (data_len == 0 )
673 sprintf(line[0],"<empty trace - possible error>");
674
675 //--- Draw the CRC column
676 char *crc = (crcStatus == 0 ? "!crc" : (crcStatus == 1 ? " ok " : " "));
677
678 EndOfTransmissionTimestamp = timestamp + duration;
679
680 if (!isResponse) {
681 switch(protocol) {
682 case ICLASS: annotateIclass(explanation,sizeof(explanation),frame,data_len); break;
683 case ISO_14443A: annotateIso14443a(explanation,sizeof(explanation),frame,data_len); break;
684 case MFDES: annotateMfDesfire(explanation,sizeof(explanation),frame,data_len); break;
685 case ISO_14443B: annotateIso14443b(explanation,sizeof(explanation),frame,data_len); break;
686 case TOPAZ: annotateTopaz(explanation,sizeof(explanation),frame,data_len); break;
687 case ISO_7816_4: annotateIso7816(explanation,sizeof(explanation),frame,data_len); break;
688 case LEGIC: annotateLegic(explanation,sizeof(explanation),frame,data_len); break;
689 default: break;
690 }
691 }
692
693 int num_lines = MIN((data_len - 1)/16 + 1, 16);
694 for (int j = 0; j < num_lines ; j++) {
695 if (j == 0) {
696 PrintAndLog(" %10u | %10u | %s |%-64s | %s| %s",
697 (timestamp - first_timestamp),
698 (EndOfTransmissionTimestamp - first_timestamp),
699 (isResponse ? "Tag" : "Rdr"),
700 line[j],
701 (j == num_lines-1) ? crc : " ",
702 (j == num_lines-1) ? explanation : "");
703 } else {
704 PrintAndLog(" | | |%-64s | %s| %s",
705 line[j],
706 (j == num_lines-1) ? crc : " ",
707 (j == num_lines-1) ? explanation : "");
708 }
709 }
710
711 if (is_last_record(tracepos, trace, traceLen)) return traceLen;
712
713 if (showWaitCycles && !isResponse && next_record_is_response(tracepos, trace)) {
714 uint32_t next_timestamp = *((uint32_t *)(trace + tracepos));
715 PrintAndLog(" %10u | %10u | %s |fdt (Frame Delay Time): %d",
716 (EndOfTransmissionTimestamp - first_timestamp),
717 (next_timestamp - first_timestamp),
718 " ",
719 (next_timestamp - EndOfTransmissionTimestamp));
720 }
721
722 return tracepos;
723 }
724
725 int usage_hf_list(){
726 PrintAndLog("List protocol data in trace buffer.");
727 PrintAndLog("Usage: hf list <protocol> [f][c]");
728 PrintAndLog(" f - show frame delay times as well");
729 PrintAndLog(" c - mark CRC bytes");
730 PrintAndLog("Supported <protocol> values:");
731 PrintAndLog(" raw - just show raw data without annotations");
732 PrintAndLog(" 14a - interpret data as iso14443a communications");
733 PrintAndLog(" 14b - interpret data as iso14443b communications");
734 PrintAndLog(" des - interpret data as DESFire communications");
735 PrintAndLog(" iclass - interpret data as iclass communications");
736 PrintAndLog(" topaz - interpret data as topaz communications");
737 PrintAndLog(" 7816 - interpret data as iso7816-4 communications");
738 PrintAndLog(" legic - interpret data as LEGIC communications");
739 PrintAndLog("");
740 PrintAndLog("example: hf list 14a f");
741 PrintAndLog(" hf list iclass");
742 return 0;
743 }
744 int usage_hf_search(){
745 PrintAndLog("Usage: hf search");
746 PrintAndLog("Will try to find a HF read out of the unknown tag. Stops when found.");
747 PrintAndLog("Options:");
748 PrintAndLog(" h - This help");
749 PrintAndLog("");
750 return 0;
751 }
752 int usage_hf_snoop(){
753 PrintAndLog("Usage: hf snoop <skip pairs> <skip triggers>");
754 PrintAndLog("The high frequence snoop will assign all available memory on device for snooped data");
755 PrintAndLog("User the 'data samples' command to download from device, and 'data plot' to look at it");
756 PrintAndLog("Press button to quit the snooping.");
757 PrintAndLog("Options:");
758 PrintAndLog(" h - This help");
759 PrintAndLog(" <skip pairs> - skip sample pairs");
760 PrintAndLog(" <skip triggers> - skip number of triggers");
761 PrintAndLog("");
762 PrintAndLog("example: hf snoop");
763 PrintAndLog(" hf snoop 1000 0");
764 return 0;
765 }
766
767 int CmdHFList(const char *Cmd) {
768 clearCommandBuffer();
769
770 bool showWaitCycles = false;
771 bool markCRCBytes = false;
772 char type[10] = {0};
773 //int tlen = param_getstr(Cmd,0,type);
774 char param1 = param_getchar(Cmd, 1);
775 char param2 = param_getchar(Cmd, 2);
776 bool errors = false;
777 uint8_t protocol = 0;
778
779 //Validate params H or empty
780 if (strlen(Cmd) < 1 || param1 == 'h' || param1 == 'H') return usage_hf_list();
781
782 //Validate params F,C
783 if(
784 (param1 != 0 && param1 != 'f' && param1 != 'c') ||
785 (param2 != 0 && param2 != 'f' && param2 != 'c')
786 ) {
787 return usage_hf_list();
788 }
789
790 param_getstr(Cmd,0,type);
791
792 // validate type of output
793 if(strcmp(type, "iclass") == 0) protocol = ICLASS;
794 else if(strcmp(type, "14a") == 0) protocol = ISO_14443A;
795 else if(strcmp(type, "14b") == 0) protocol = ISO_14443B;
796 else if(strcmp(type, "topaz")== 0) protocol = TOPAZ;
797 else if(strcmp(type, "7816")== 0) protocol = ISO_7816_4;
798 else if(strcmp(type,"des")== 0) protocol = MFDES;
799 else if(strcmp(type,"legic")==0) protocol = LEGIC;
800 else if(strcmp(type, "raw")== 0) protocol = -1;//No crc, no annotations
801 else errors = true;
802
803 if (errors) return usage_hf_list();
804
805 if (param1 == 'f' || param2 == 'f') showWaitCycles = true;
806 if (param1 == 'c' || param2 == 'c') markCRCBytes = true;
807
808 uint8_t *trace;
809 uint16_t tracepos = 0;
810 trace = malloc(USB_CMD_DATA_SIZE);
811
812 // Query for the size of the trace
813 UsbCommand response;
814 GetFromBigBuf(trace, USB_CMD_DATA_SIZE, 0);
815 WaitForResponse(CMD_ACK, &response);
816 uint16_t traceLen = response.arg[2];
817 if (traceLen > USB_CMD_DATA_SIZE) {
818 uint8_t *p = realloc(trace, traceLen);
819 if (p == NULL) {
820 PrintAndLog("Cannot allocate memory for trace");
821 free(trace);
822 return 2;
823 }
824 trace = p;
825 GetFromBigBuf(trace, traceLen, 0);
826 WaitForResponse(CMD_ACK, NULL);
827 }
828
829 PrintAndLog("Recorded Activity (TraceLen = %d bytes)", traceLen);
830 PrintAndLog("");
831 PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer");
832 PrintAndLog("iso14443a - All times are in carrier periods (1/13.56Mhz)");
833 PrintAndLog("iClass - Timings are not as accurate");
834 PrintAndLog("");
835 PrintAndLog(" Start | End | Src | Data (! denotes parity error) | CRC | Annotation |");
836 PrintAndLog("------------|------------|-----|-----------------------------------------------------------------|-----|--------------------|");
837
838 while(tracepos < traceLen) {
839 tracepos = printTraceLine(tracepos, traceLen, trace, protocol, showWaitCycles, markCRCBytes);
840 }
841
842 free(trace);
843 return 0;
844 }
845
846 int CmdHFSearch(const char *Cmd){
847
848 char cmdp = param_getchar(Cmd, 0);
849 if (cmdp == 'h' || cmdp == 'H') return usage_hf_search();
850
851 PrintAndLog("");
852 int ans = CmdHF14AReader("s");
853
854 if (ans > 0) {
855 PrintAndLog("\nValid ISO14443-A Tag Found - Quiting Search\n");
856 return ans;
857 }
858 ans = CmdHF14BReader("s");
859 if (ans) {
860 PrintAndLog("\nValid ISO14443-B Tag Found - Quiting Search\n");
861 return ans;
862 }
863 ans = HFiClassReader("", false, false);
864 if (ans) {
865 PrintAndLog("\nValid iClass Tag (or PicoPass Tag) Found - Quiting Search\n");
866 return ans;
867 }
868 ans = HF15Reader("", false);
869 if (ans) {
870 PrintAndLog("\nValid ISO15693 Tag Found - Quiting Search\n");
871 return ans;
872 }
873 ans = CmdHFTopazReader("s");
874 if (ans == 0) {
875 PrintAndLog("\nValid Topaz Tag Found - Quiting Search\n");
876 return 1;
877 }
878 PrintAndLog("\nno known/supported 13.56 MHz tags found\n");
879 return 0;
880 }
881
882 int CmdHFSnoop(const char *Cmd) {
883 char cmdp = param_getchar(Cmd, 0);
884 if (cmdp == 'h' || cmdp == 'H') return usage_hf_snoop();
885
886 int skippairs = param_get32ex(Cmd, 0, 0, 10);
887 int skiptriggers = param_get32ex(Cmd, 1, 0, 10);
888
889 UsbCommand c = {CMD_HF_SNIFFER, {skippairs, skiptriggers, 0}};
890 clearCommandBuffer();
891 SendCommand(&c);
892 return 0;
893 }
894
895 static command_t CommandTable[] = {
896 {"help", CmdHelp, 1, "This help"},
897 {"14a", CmdHF14A, 1, "{ ISO14443A RFIDs... }"},
898 {"14b", CmdHF14B, 1, "{ ISO14443B RFIDs... }"},
899 {"15", CmdHF15, 1, "{ ISO15693 RFIDs... }"},
900 {"epa", CmdHFEPA, 1, "{ German Identification Card... }"},
901 {"legic", CmdHFLegic, 1, "{ LEGIC RFIDs... }"},
902 {"iclass", CmdHFiClass, 1, "{ ICLASS RFIDs... }"},
903 {"mf", CmdHFMF, 1, "{ MIFARE RFIDs... }"},
904 {"mfu", CmdHFMFUltra, 1, "{ MIFARE Ultralight RFIDs... }"},
905 {"mfdes", CmdHFMFDes, 1, "{ MIFARE Desfire RFIDs... }"},
906 {"topaz", CmdHFTopaz, 1, "{ TOPAZ (NFC Type 1) RFIDs... }"},
907 {"tune", CmdHFTune, 0, "Continuously measure HF antenna tuning"},
908 {"list", CmdHFList, 1, "List protocol data in trace buffer"},
909 {"search", CmdHFSearch, 1, "Search for known HF tags [preliminary]"},
910 {"snoop", CmdHFSnoop, 0, "<samples to skip (10000)> <triggers to skip (1)> Generic LF/HF Snoop in Testing stage"},
911 {NULL, NULL, 0, NULL}
912 };
913
914 int CmdHF(const char *Cmd) {
915 clearCommandBuffer();
916 CmdsParse(CommandTable, Cmd);
917 return 0;
918 }
919
920 int CmdHelp(const char *Cmd) {
921 CmdsHelp(CommandTable);
922 return 0;
923 }
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