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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
26 static int CmdHelp(const char *Cmd);
27
28 int CmdHFTune(const char *Cmd)
29 {
30 UsbCommand c={CMD_MEASURE_ANTENNA_TUNING_HF};
31 SendCommand(&c);
32 return 0;
33 }
34 // for the time being. Need better Bigbuf handling.
35 #define TRACE_SIZE 3000
36
37 //The following data is taken from http://www.proxmark.org/forum/viewtopic.php?pid=13501#p13501
38 /*
39 ISO14443A (usually NFC tags)
40 26 (7bits) = REQA
41 30 = Read (usage: 30+1byte block number+2bytes ISO14443A-CRC - answer: 16bytes)
42 A2 = Write (usage: A2+1byte block number+4bytes data+2bytes ISO14443A-CRC - answer: 0A [ACK] or 00 [NAK])
43 52 (7bits) = WUPA (usage: 52(7bits) - answer: 2bytes ATQA)
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 95 20 = Anticollision of cascade level2
47 95 70 = Select of cascade level2
48 50 00 = Halt (usage: 5000+2bytes ISO14443A-CRC - no answer from card)
49 Mifare
50 60 = Authenticate with KeyA
51 61 = Authenticate with KeyB
52 40 (7bits) = Used to put Chinese Changeable UID cards in special mode (must be followed by 43 (8bits) - answer: 0A)
53 C0 = Decrement
54 C1 = Increment
55 C2 = Restore
56 B0 = Transfer
57 Ultralight C
58 A0 = Compatibility Write (to accomodate MIFARE commands)
59 1A = Step1 Authenticate
60 AF = Step2 Authenticate
61
62
63 ISO14443B
64 05 = REQB
65 1D = ATTRIB
66 50 = HALT
67 SRIX4K (tag does not respond to 05)
68 06 00 = INITIATE
69 0E xx = SELECT ID (xx = Chip-ID)
70 0B = Get UID
71 08 yy = Read Block (yy = block number)
72 09 yy dd dd dd dd = Write Block (yy = block number; dd dd dd dd = data to be written)
73 0C = Reset to Inventory
74 0F = Completion
75 0A 11 22 33 44 55 66 = Authenticate (11 22 33 44 55 66 = data to authenticate)
76
77
78 ISO15693
79 MANDATORY COMMANDS (all ISO15693 tags must support those)
80 01 = Inventory (usage: 260100+2bytes ISO15693-CRC - answer: 12bytes)
81 02 = Stay Quiet
82 OPTIONAL COMMANDS (not all tags support them)
83 20 = Read Block (usage: 0220+1byte block number+2bytes ISO15693-CRC - answer: 4bytes)
84 21 = Write Block (usage: 0221+1byte block number+4bytes data+2bytes ISO15693-CRC - answer: 4bytes)
85 22 = Lock Block
86 23 = Read Multiple Blocks (usage: 0223+1byte 1st block to read+1byte last block to read+2bytes ISO15693-CRC)
87 25 = Select
88 26 = Reset to Ready
89 27 = Write AFI
90 28 = Lock AFI
91 29 = Write DSFID
92 2A = Lock DSFID
93 2B = Get_System_Info (usage: 022B+2bytes ISO15693-CRC - answer: 14 or more bytes)
94 2C = Read Multiple Block Security Status (usage: 022C+1byte 1st block security to read+1byte last block security to read+2bytes ISO15693-CRC)
95
96 EM Microelectronic CUSTOM COMMANDS
97 A5 = Active EAS (followed by 1byte IC Manufacturer code+1byte EAS type)
98 A7 = Write EAS ID (followed by 1byte IC Manufacturer code+2bytes EAS value)
99 B8 = Get Protection Status for a specific block (followed by 1byte IC Manufacturer code+1byte block number+1byte of how many blocks after the previous is needed the info)
100 E4 = Login (followed by 1byte IC Manufacturer code+4bytes password)
101 NXP/Philips CUSTOM COMMANDS
102 A0 = Inventory Read
103 A1 = Fast Inventory Read
104 A2 = Set EAS
105 A3 = Reset EAS
106 A4 = Lock EAS
107 A5 = EAS Alarm
108 A6 = Password Protect EAS
109 A7 = Write EAS ID
110 A8 = Read EPC
111 B0 = Inventory Page Read
112 B1 = Fast Inventory Page Read
113 B2 = Get Random Number
114 B3 = Set Password
115 B4 = Write Password
116 B5 = Lock Password
117 B6 = Bit Password Protection
118 B7 = Lock Page Protection Condition
119 B8 = Get Multiple Block Protection Status
120 B9 = Destroy SLI
121 BA = Enable Privacy
122 BB = 64bit Password Protection
123 40 = Long Range CMD (Standard ISO/TR7003:1990)
124 */
125
126 #define ICLASS_CMD_ACTALL 0x0A
127 #define ICLASS_CMD_READ_OR_IDENTIFY 0x0C
128 #define ICLASS_CMD_SELECT 0x81
129 #define ICLASS_CMD_PAGESEL 0x84
130 #define ICLASS_CMD_READCHECK 0x88
131 #define ICLASS_CMD_CHECK 0x05
132 #define ICLASS_CMD_SOF 0x0F
133 #define ICLASS_CMD_HALT 0x00
134
135 #define ISO14443_CMD_REQA 0x26
136 #define ISO14443_CMD_READBLOCK 0x30
137 #define ISO14443_CMD_WUPA 0x52
138 #define ISO14443_CMD_ANTICOLL_OR_SELECT 0x93
139 #define ISO14443_CMD_ANTICOLL_OR_SELECT_2 0x95
140 #define ISO14443_CMD_WRITEBLOCK 0xA0 // or 0xA2 ?
141 #define ISO14443_CMD_HALT 0x50
142 #define ISO14443_CMD_RATS 0xE0
143
144 #define MIFARE_AUTH_KEYA 0x60
145 #define MIFARE_AUTH_KEYB 0x61
146 #define MIFARE_MAGICMODE 0x40
147 #define MIFARE_CMD_INC 0xC0
148 #define MIFARE_CMD_DEC 0xC1
149 #define MIFARE_CMD_RESTORE 0xC2
150 #define MIFARE_CMD_TRANSFER 0xB0
151
152 #define MIFARE_ULC_WRITE 0xA0
153 #define MIFARE_ULC_AUTH_1 0x1A
154 #define MIFARE_ULC_AUTH_2 0xAF
155
156 #define ISO14443B_REQB 0x05
157 #define ISO14443B_ATTRIB 0x1D
158 #define ISO14443B_HALT 0x50
159
160 //First byte is 26
161 #define ISO15693_INVENTORY 0x01
162 #define ISO15693_STAYQUIET 0x02
163 //First byte is 02
164 #define ISO15693_READBLOCK 0x20
165 #define ISO15693_WRITEBLOCK 0x21
166 #define ISO15693_LOCKBLOCK 0x22
167 #define ISO15693_READ_MULTI_BLOCK 0x23
168 #define ISO15693_SELECT 0x25
169 #define ISO15693_RESET_TO_READY 0x26
170 #define ISO15693_WRITE_AFI 0x27
171 #define ISO15693_LOCK_AFI 0x28
172 #define ISO15693_WRITE_DSFID 0x29
173 #define ISO15693_LOCK_DSFID 0x2A
174 #define ISO15693_GET_SYSTEM_INFO 0x2B
175 #define ISO15693_READ_MULTI_SECSTATUS 0x2C
176
177
178
179
180 void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
181 {
182 switch(cmd[0])
183 {
184 case ISO14443_CMD_WUPA: snprintf(exp,size,"WUPA"); break;
185 case ISO14443_CMD_ANTICOLL_OR_SELECT:{
186 // 93 20 = Anticollision (usage: 9320 - answer: 4bytes UID+1byte UID-bytes-xor)
187 // 93 70 = Select (usage: 9370+5bytes 9320 answer - answer: 1byte SAK)
188 if(cmd[2] == 0x70)
189 {
190 snprintf(exp,size,"SELECT_UID"); break;
191 }else
192 {
193 snprintf(exp,size,"ANTICOLL"); break;
194 }
195 }
196 case ISO14443_CMD_ANTICOLL_OR_SELECT_2:{
197 //95 20 = Anticollision of cascade level2
198 //95 70 = Select of cascade level2
199 if(cmd[2] == 0x70)
200 {
201 snprintf(exp,size,"SELECT_UID-2"); break;
202 }else
203 {
204 snprintf(exp,size,"ANTICOLL-2"); break;
205 }
206 }
207 case ISO14443_CMD_REQA: snprintf(exp,size,"REQA"); break;
208 case ISO14443_CMD_READBLOCK: snprintf(exp,size,"READBLOCK(%d)",cmd[1]); break;
209 case ISO14443_CMD_WRITEBLOCK: snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]); break;
210 case ISO14443_CMD_HALT: snprintf(exp,size,"HALT"); break;
211 case ISO14443_CMD_RATS: snprintf(exp,size,"RATS"); break;
212 case MIFARE_CMD_INC: snprintf(exp,size,"INC(%d)",cmd[1]); break;
213 case MIFARE_CMD_DEC: snprintf(exp,size,"DEC(%d)",cmd[1]); break;
214 case MIFARE_CMD_RESTORE: snprintf(exp,size,"RESTORE(%d)",cmd[1]); break;
215 case MIFARE_CMD_TRANSFER: snprintf(exp,size,"TRANSFER(%d)",cmd[1]); break;
216 case MIFARE_AUTH_KEYA: snprintf(exp,size,"AUTH-A"); break;
217 case MIFARE_AUTH_KEYB: snprintf(exp,size,"AUTH-B"); break;
218 case MIFARE_MAGICMODE: snprintf(exp,size,"MAGIC"); break;
219 default: snprintf(exp,size,"?"); break;
220 }
221 return;
222 }
223
224 void annotateIclass(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
225 {
226 switch(cmd[0])
227 {
228 case ICLASS_CMD_ACTALL: snprintf(exp,size,"ACTALL"); break;
229 case ICLASS_CMD_READ_OR_IDENTIFY:{
230 if(cmdsize > 1){
231 snprintf(exp,size,"READ(%d)",cmd[1]);
232 }else{
233 snprintf(exp,size,"IDENTIFY");
234 }
235 break;
236 }
237 case ICLASS_CMD_SELECT: snprintf(exp,size,"SELECT"); break;
238 case ICLASS_CMD_PAGESEL: snprintf(exp,size,"PAGESEL"); break;
239 case ICLASS_CMD_READCHECK: snprintf(exp,size,"READCHECK"); break;
240 case ICLASS_CMD_CHECK: snprintf(exp,size,"CHECK"); break;
241 case ICLASS_CMD_SOF: snprintf(exp,size,"SOF"); break;
242 case ICLASS_CMD_HALT: snprintf(exp,size,"HALT"); break;
243 default: snprintf(exp,size,"?"); break;
244 }
245 return;
246 }
247
248 void annotateIso15693(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
249 {
250
251 if(cmd[0] == 0x26)
252 {
253 switch(cmd[1]){
254 case ISO15693_INVENTORY :snprintf(exp, size, "INVENTORY");break;
255 case ISO15693_STAYQUIET :snprintf(exp, size, "STAY_QUIET");break;
256 default: snprintf(exp,size,"?"); break;
257
258 }
259 }else if(cmd[0] == 0x02)
260 {
261 switch(cmd[1])
262 {
263 case ISO15693_READBLOCK :snprintf(exp, size, "READBLOCK");break;
264 case ISO15693_WRITEBLOCK :snprintf(exp, size, "WRITEBLOCK");break;
265 case ISO15693_LOCKBLOCK :snprintf(exp, size, "LOCKBLOCK");break;
266 case ISO15693_READ_MULTI_BLOCK :snprintf(exp, size, "READ_MULTI_BLOCK");break;
267 case ISO15693_SELECT :snprintf(exp, size, "SELECT");break;
268 case ISO15693_RESET_TO_READY :snprintf(exp, size, "RESET_TO_READY");break;
269 case ISO15693_WRITE_AFI :snprintf(exp, size, "WRITE_AFI");break;
270 case ISO15693_LOCK_AFI :snprintf(exp, size, "LOCK_AFI");break;
271 case ISO15693_WRITE_DSFID :snprintf(exp, size, "WRITE_DSFID");break;
272 case ISO15693_LOCK_DSFID :snprintf(exp, size, "LOCK_DSFID");break;
273 case ISO15693_GET_SYSTEM_INFO :snprintf(exp, size, "GET_SYSTEM_INFO");break;
274 case ISO15693_READ_MULTI_SECSTATUS :snprintf(exp, size, "READ_MULTI_SECSTATUS");break;
275 default: snprintf(exp,size,"?"); break;
276 }
277 }
278 }
279
280 uint16_t printTraceLine(uint16_t tracepos, uint8_t* trace, bool iclass, bool showWaitCycles)
281 {
282 bool isResponse;
283 uint16_t duration, data_len,parity_len;
284
285 uint32_t timestamp, first_timestamp, EndOfTransmissionTimestamp;
286 char explanation[30] = {0};
287
288 first_timestamp = *((uint32_t *)(trace));
289 timestamp = *((uint32_t *)(trace + tracepos));
290 // Break and stick with current result if buffer was not completely full
291 if (timestamp == 0x44444444) return TRACE_SIZE;
292
293 tracepos += 4;
294 duration = *((uint16_t *)(trace + tracepos));
295 tracepos += 2;
296 data_len = *((uint16_t *)(trace + tracepos));
297 tracepos += 2;
298
299 if (data_len & 0x8000) {
300 data_len &= 0x7fff;
301 isResponse = true;
302 } else {
303 isResponse = false;
304 }
305 parity_len = (data_len-1)/8 + 1;
306
307 if (tracepos + data_len + parity_len >= TRACE_SIZE) {
308 return TRACE_SIZE;
309 }
310
311 uint8_t *frame = trace + tracepos;
312 tracepos += data_len;
313 uint8_t *parityBytes = trace + tracepos;
314 tracepos += parity_len;
315
316 //--- Draw the data column
317 char line[16][110];
318 for (int j = 0; j < data_len; j++) {
319 int oddparity = 0x01;
320 int k;
321
322 for (k=0 ; k<8 ; k++) {
323 oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01);
324 }
325
326 uint8_t parityBits = parityBytes[j>>3];
327
328 if (isResponse && (oddparity != ((parityBits >> (7-(j&0x0007))) & 0x01))) {
329 sprintf(line[j/16]+((j%16)*4), "%02x! ", frame[j]);
330 } else {
331 sprintf(line[j/16]+((j%16)*4), "%02x ", frame[j]);
332 }
333 }
334 //--- Draw the CRC column
335 bool crcError = false;
336
337 if (data_len > 2) {
338 uint8_t b1, b2;
339 if(iclass)
340 {
341 if(!isResponse && data_len == 4 ) {
342 // Rough guess that this is a command from the reader
343 // For iClass the command byte is not part of the CRC
344 ComputeCrc14443(CRC_ICLASS, &frame[1], data_len-3, &b1, &b2);
345 } else {
346 // For other data.. CRC might not be applicable (UPDATE commands etc.)
347 ComputeCrc14443(CRC_ICLASS, frame, data_len-2, &b1, &b2);
348 }
349
350 if (b1 != frame[data_len-2] || b2 != frame[data_len-1]) {
351 crcError = true;
352 }
353
354 }else{//Iso 14443a
355
356 ComputeCrc14443(CRC_14443_A, frame, data_len-2, &b1, &b2);
357
358 if (b1 != frame[data_len-2] || b2 != frame[data_len-1]) {
359 if(!(isResponse & (data_len < 6)))
360 {
361 crcError = true;
362 }
363 }
364 }
365 }
366 char *crc = crcError ? "!crc" :" ";
367
368 EndOfTransmissionTimestamp = timestamp + duration;
369
370 if(!isResponse)
371 {
372 if(iclass)
373 annotateIclass(explanation,sizeof(explanation),frame,data_len);
374 else
375 annotateIso14443a(explanation,sizeof(explanation),frame,data_len);
376 }
377
378 int num_lines = (data_len - 1)/16 + 1;
379 for (int j = 0; j < num_lines; j++) {
380 if (j == 0) {
381 PrintAndLog(" %9d | %9d | %s | %-64s| %s| %s",
382 (timestamp - first_timestamp),
383 (EndOfTransmissionTimestamp - first_timestamp),
384 (isResponse ? "Tag" : "Rdr"),
385 line[j],
386 (j == num_lines-1) ? crc : " ",
387 (j == num_lines-1) ? explanation : "");
388 } else {
389 PrintAndLog(" | | | %-64s| %s| %s",
390 line[j],
391 (j == num_lines-1)?crc:" ",
392 (j == num_lines-1) ? explanation : "");
393 }
394 }
395
396 bool next_isResponse = *((uint16_t *)(trace + tracepos + 6)) & 0x8000;
397
398 if (showWaitCycles && !isResponse && next_isResponse) {
399 uint32_t next_timestamp = *((uint32_t *)(trace + tracepos));
400 if (next_timestamp != 0x44444444) {
401 PrintAndLog(" %9d | %9d | %s | fdt (Frame Delay Time): %d",
402 (EndOfTransmissionTimestamp - first_timestamp),
403 (next_timestamp - first_timestamp),
404 " ",
405 (next_timestamp - EndOfTransmissionTimestamp));
406 }
407 }
408 return tracepos;
409 }
410
411 int CmdHFList(const char *Cmd)
412 {
413 bool showWaitCycles = false;
414 char type[40] = {0};
415 int tlen = param_getstr(Cmd,0,type);
416 char param = param_getchar(Cmd, 1);
417 bool errors = false;
418 bool iclass = false;
419 //Validate params
420 if(tlen == 0 || (strcmp(type, "iclass") != 0 && strcmp(type,"14a") != 0))
421 {
422 errors = true;
423 }
424 if(param == 'h' || (param !=0 && param != 'f'))
425 {
426 errors = true;
427 }
428
429 if (errors) {
430 PrintAndLog("List protocol data in trace buffer.");
431 PrintAndLog("Usage: hf list [14a|iclass] [f]");
432 PrintAndLog(" 14a - interpret data as iso14443a communications");
433 PrintAndLog(" iclass - interpret data as iclass communications");
434 PrintAndLog(" f - show frame delay times as well");
435 PrintAndLog("");
436 PrintAndLog("example: hf list 14a f");
437 PrintAndLog("example: hf list iclass");
438 return 0;
439 }
440 if(strcmp(type, "iclass") == 0)
441 {
442 iclass = true;
443 }
444
445 if (param == 'f') {
446 showWaitCycles = true;
447 }
448
449
450 uint8_t trace[TRACE_SIZE];
451 uint16_t tracepos = 0;
452 GetFromBigBuf(trace, TRACE_SIZE, 0);
453 WaitForResponse(CMD_ACK, NULL);
454
455 PrintAndLog("Recorded Activity");
456 PrintAndLog("");
457 PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer");
458 PrintAndLog("iso14443a - All times are in carrier periods (1/13.56Mhz)");
459 PrintAndLog("iClass - Timings are not as accurate");
460 PrintAndLog("");
461 PrintAndLog(" Start | End | Src | Data (! denotes parity error) | CRC | Annotation |");
462 PrintAndLog("-----------|-----------|-----|-----------------------------------------------------------------|-----|--------------------|");
463
464 while(tracepos < TRACE_SIZE)
465 {
466 tracepos = printTraceLine(tracepos, trace, iclass, showWaitCycles);
467 }
468 return 0;
469 }
470
471
472 static command_t CommandTable[] =
473 {
474 {"help", CmdHelp, 1, "This help"},
475 {"14a", CmdHF14A, 1, "{ ISO14443A RFIDs... }"},
476 {"14b", CmdHF14B, 1, "{ ISO14443B RFIDs... }"},
477 {"15", CmdHF15, 1, "{ ISO15693 RFIDs... }"},
478 {"epa", CmdHFEPA, 1, "{ German Identification Card... }"},
479 {"legic", CmdHFLegic, 0, "{ LEGIC RFIDs... }"},
480 {"iclass", CmdHFiClass, 1, "{ ICLASS RFIDs... }"},
481 {"mf", CmdHFMF, 1, "{ MIFARE RFIDs... }"},
482 {"tune", CmdHFTune, 0, "Continuously measure HF antenna tuning"},
483 {"list", CmdHFList, 1, "List protocol data in trace buffer"},
484 {NULL, NULL, 0, NULL}
485 };
486
487 int CmdHF(const char *Cmd)
488 {
489 CmdsParse(CommandTable, Cmd);
490 return 0;
491 }
492
493 int CmdHelp(const char *Cmd)
494 {
495 CmdsHelp(CommandTable);
496 return 0;
497 }
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