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fix 'hf iclass snoop'
[proxmark3-svn] / client / cmdhflist.c
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4f131b53 1//-----------------------------------------------------------------------------
0d2624a0 2// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
4f131b53 3// Copyright (C) Merlok - 2017
4//
5// This code is licensed to you under the terms of the GNU GPL, version 2 or,
6// at your option, any later version. See the LICENSE.txt file for the text of
7// the license.
8//-----------------------------------------------------------------------------
0d2624a0 9// Command: hf list. It shows data from arm buffer.
4f131b53 10//-----------------------------------------------------------------------------
11
12#include "cmdhflist.h"
13
14#include <stdlib.h>
15#include <stdio.h>
16#include <string.h>
6612a5a2 17#include <stdint.h>
18#include <stdbool.h>
19#include "util.h"
6612a5a2 20#include "ui.h"
d3bcdbda 21#include "cliparser/cliparser.h"
0d2624a0 22#include "comms.h"
6612a5a2 23#include "iso14443crc.h"
0d2624a0 24#include "iso15693tools.h"
6612a5a2 25#include "parity.h"
26#include "protocols.h"
7b215d14 27#include "crapto1/crapto1.h"
fdd9395d
OM		 28#include "mifare/mifarehost.h"
29#include "mifare/mifaredefault.h"
0d2624a0 30#include "usb_cmd.h"
53fb848a 31#include "pcsc.h"
4f131b53 32
0d2624a0 33typedef struct {
34 uint32_t uid; // UID
35 uint32_t nt; // tag challenge
36 uint32_t nt_enc; // encrypted tag challenge
37 uint8_t nt_enc_par; // encrypted tag challenge parity
38 uint32_t nr_enc; // encrypted reader challenge
39 uint32_t ar_enc; // encrypted reader response
40 uint8_t ar_enc_par; // encrypted reader response parity
41 uint32_t at_enc; // encrypted tag response
42 uint8_t at_enc_par; // encrypted tag response parity
43 bool first_auth; // is first authentication
53fb848a 44 uint32_t ks2; // ar ^ ar_enc
0d2624a0 45 uint32_t ks3; // at ^ at_enc
46} TAuthData;
4f131b53 47
6612a5a2 48enum MifareAuthSeq {
49 masNone,
50 masNt,
51 masNrAr,
52 masAt,
747885a6 53 masAuthComplete,
aadc6bf1 54 masFirstData,
6612a5a2 55 masData,
6612a5a2 56 masError,
57};
0d2624a0 58
6612a5a2 59static enum MifareAuthSeq MifareAuthState;
aadc6bf1
OM		 60static TAuthData AuthData;
61
0d2624a0 62static void ClearAuthData() {
aadc6bf1
OM		 63 AuthData.uid = 0;
64 AuthData.nt = 0;
7b215d14 65 AuthData.first_auth = true;
e01bc794
OM		 66 AuthData.ks2 = 0;
67 AuthData.ks3 = 0;
aadc6bf1 68}
6612a5a2 69
70/**
71 * @brief iso14443A_CRC_check Checks CRC in command or response
72 * @param isResponse
73 * @param data
74 * @param len
75 * @return 0 : CRC-command, CRC not ok
76 * 1 : CRC-command, CRC ok
77 * 2 : Not crc-command
78 */
0d2624a0 79static uint8_t iso14443A_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
6612a5a2 80{
81 uint8_t b1,b2;
82
83 if(len <= 2) return 2;
84
85 if(isResponse & (len < 6)) return 2;
53fb848a 86
87 ComputeCrc14443(CRC_14443_A, data, len-2, &b1, &b2);
88 if (b1 != data[len-2] || b2 != data[len-1]) {
89 return 0;
90 } else {
91 return 1;
92 }
93}
94
95
96static uint8_t iso14443_4_CRC_check(uint8_t* data, uint8_t len)
97{
98 uint8_t b1,b2;
99
100 if(len <= 2) return 2;
101
6612a5a2 102 ComputeCrc14443(CRC_14443_A, data, len-2, &b1, &b2);
103 if (b1 != data[len-2] || b2 != data[len-1]) {
104 return 0;
105 } else {
106 return 1;
107 }
108}
109
0d2624a0 110
111static uint8_t mifare_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
6612a5a2 112{
113 switch(MifareAuthState) {
114 case masNone:
6612a5a2 115 case masError:
116 return iso14443A_CRC_check(isResponse, data, len);
117 default:
118 return 2;
119 }
6612a5a2 120}
121
0d2624a0 122
123/**
124 * @brief iso14443B_CRC_check Checks CRC in command or response
125 * @param isResponse
126 * @param data
127 * @param len
128 * @return 0 : CRC-command, CRC not ok
129 * 1 : CRC-command, CRC ok
130 * 2 : Not crc-command
131 */
132static uint8_t iso14443B_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
133{
134 uint8_t b1,b2;
135
136 if(len <= 2) return 2;
137
138 ComputeCrc14443(CRC_14443_B, data, len-2, &b1, &b2);
139 if(b1 != data[len-2] || b2 != data[len-1]) {
140 return 0;
141 } else {
142 return 1;
143 }
144}
145
146
53fb848a 147static uint8_t iso15693_CRC_check(uint8_t* d, uint16_t n)
0d2624a0 148{
149 if (n <= 2) return 2;
53fb848a 150
0d2624a0 151 return (Iso15693Crc(d, n) == ISO15693_CRC_CHECK ? 1 : 0);
152}
153
154
155/**
156 * @brief iclass_CRC_Ok Checks CRC in command or response
157 * @param isResponse
158 * @param data
159 * @param len
160 * @return 0 : CRC-command, CRC not ok
53fb848a 161 * 1 : CRC-command, CRC ok
0d2624a0 162 * 2 : Not crc-command
163 */
164uint8_t iclass_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
165{
166 if(len < 4) return 2;//CRC commands (and responses) are all at least 4 bytes
167
168 uint8_t b1, b2;
169
170 if(!isResponse)//Commands to tag
171 {
172 /**
173 These commands should have CRC. Total length leftmost
53fb848a 174 4 READ
0d2624a0 175 4 READ4
176 12 UPDATE - unsecured, ends with CRC16
177 14 UPDATE - secured, ends with signature instead
178 4 PAGESEL
179 **/
180 if(len == 4 || len == 12)//Covers three of them
181 {
182 //Don't include the command byte
183 ComputeCrc14443(CRC_ICLASS, (data+1), len-3, &b1, &b2);
184 return b1 == data[len -2] && b2 == data[len-1];
185 }
186 return 2;
187 }else{
188 /**
189 These tag responses should have CRC. Total length leftmost
190
53fb848a 191 10 READ data[8] crc[2]
192 34 READ4 data[32]crc[2]
193 10 UPDATE data[8] crc[2]
194 10 SELECT csn[8] crc[2]
0d2624a0 195 10 IDENTIFY asnb[8] crc[2]
196 10 PAGESEL block1[8] crc[2]
197 10 DETECT csn[8] crc[2]
198
199 These should not
200
53fb848a 201 4 CHECK chip_response[4]
0d2624a0 202 8 READCHECK data[8]
203 1 ACTALL sof[1]
53fb848a 204 1 ACT sof[1]
0d2624a0 205
206 In conclusion, without looking at the command; any response
207 of length 10 or 34 should have CRC
208 **/
209 if(len != 10 && len != 34) return true;
210
211 ComputeCrc14443(CRC_ICLASS, data, len-2, &b1, &b2);
212 return b1 == data[len -2] && b2 == data[len-1];
213 }
214}
215
216
3d2c9c9b 217void annotateIclass(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) {
868deeb7 218 switch(cmd[0])
219 {
3d2c9c9b 220 case ICLASS_CMD_ACTALL: snprintf(exp, size, "ACTALL"); break;
221 case ICLASS_CMD_READ_OR_IDENTIFY: {
222 if (cmdsize > 1){
868deeb7 223 snprintf(exp,size,"READ(%d)",cmd[1]);
3d2c9c9b 224 } else {
868deeb7 225 snprintf(exp,size,"IDENTIFY");
226 }
227 break;
228 }
ae60ceca 229 case ICLASS_CMD_SELECT: snprintf(exp,size, "SELECT"); break;
230 case ICLASS_CMD_PAGESEL: snprintf(exp,size, "PAGESEL(%d)", cmd[1]); break;
231 case ICLASS_CMD_READCHECK_KC: snprintf(exp,size, "READCHECK[Kc](%d)", cmd[1]); break;
232 case ICLASS_CMD_READCHECK_KD: snprintf(exp,size, "READCHECK[Kd](%d)", cmd[1]); break;
233 case ICLASS_CMD_CHECK_KC:
234 case ICLASS_CMD_CHECK_KD: snprintf(exp,size, "CHECK"); break;
235 case ICLASS_CMD_DETECT: snprintf(exp,size, "DETECT"); break;
236 case ICLASS_CMD_HALT: snprintf(exp,size, "HALT"); break;
237 case ICLASS_CMD_UPDATE: snprintf(exp,size, "UPDATE(%d)",cmd[1]); break;
238 case ICLASS_CMD_ACT: snprintf(exp,size, "ACT"); break;
239 case ICLASS_CMD_READ4: snprintf(exp,size, "READ4(%d)",cmd[1]); break;
240 default: snprintf(exp,size, "?"); break;
868deeb7 241 }
242 return;
243}
244
0d2624a0 245
868deeb7 246void annotateIso15693(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
247{
0d2624a0 248 switch(cmd[1]){
249 // Mandatory Commands, all Tags must support them:
53fb848a 250 case ISO15693_INVENTORY :snprintf(exp, size, "INVENTORY");return;
251 case ISO15693_STAYQUIET :snprintf(exp, size, "STAY_QUIET");return;
0d2624a0 252 // Optional Commands, Tags may support them:
53fb848a 253 case ISO15693_READBLOCK :snprintf(exp, size, "READBLOCK");return;
254 case ISO15693_WRITEBLOCK :snprintf(exp, size, "WRITEBLOCK");return;
255 case ISO15693_LOCKBLOCK :snprintf(exp, size, "LOCKBLOCK");return;
256 case ISO15693_READ_MULTI_BLOCK :snprintf(exp, size, "READ_MULTI_BLOCK");return;
257 case ISO15693_SELECT :snprintf(exp, size, "SELECT");return;
258 case ISO15693_RESET_TO_READY :snprintf(exp, size, "RESET_TO_READY");return;
259 case ISO15693_WRITE_AFI :snprintf(exp, size, "WRITE_AFI");return;
260 case ISO15693_LOCK_AFI :snprintf(exp, size, "LOCK_AFI");return;
261 case ISO15693_WRITE_DSFID :snprintf(exp, size, "WRITE_DSFID");return;
262 case ISO15693_LOCK_DSFID :snprintf(exp, size, "LOCK_DSFID");return;
263 case ISO15693_GET_SYSTEM_INFO :snprintf(exp, size, "GET_SYSTEM_INFO");return;
264 case ISO15693_READ_MULTI_SECSTATUS :snprintf(exp, size, "READ_MULTI_SECSTATUS");return;
0d2624a0 265 default: break;
868deeb7 266 }
0d2624a0 267
268 if (cmd[1] > ISO15693_STAYQUIET && cmd[1] < ISO15693_READBLOCK) snprintf(exp, size, "Mandatory RFU");
53fb848a 269 else if (cmd[1] > ISO15693_READ_MULTI_SECSTATUS && cmd[1] <= 0x9F) snprintf(exp, size, "Optional RFU");
270 else if ( cmd[1] >= 0xA0 && cmd[1] <= 0xDF ) snprintf(exp, size, "Custom command");
271 else if ( cmd[1] >= 0xE0 && cmd[1] <= 0xFF ) snprintf(exp, size, "Proprietary command");
868deeb7 272}
273
274
275void annotateTopaz(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
276{
277 switch(cmd[0]) {
53fb848a 278 case TOPAZ_REQA :snprintf(exp, size, "REQA");break;
279 case TOPAZ_WUPA :snprintf(exp, size, "WUPA");break;
280 case TOPAZ_RID :snprintf(exp, size, "RID");break;
281 case TOPAZ_RALL :snprintf(exp, size, "RALL");break;
282 case TOPAZ_READ :snprintf(exp, size, "READ");break;
283 case TOPAZ_WRITE_E :snprintf(exp, size, "WRITE-E");break;
284 case TOPAZ_WRITE_NE :snprintf(exp, size, "WRITE-NE");break;
285 case TOPAZ_RSEG :snprintf(exp, size, "RSEG");break;
286 case TOPAZ_READ8 :snprintf(exp, size, "READ8");break;
287 case TOPAZ_WRITE_E8 :snprintf(exp, size, "WRITE-E8");break;
288 case TOPAZ_WRITE_NE8 :snprintf(exp, size, "WRITE-NE8");break;
868deeb7 289 default: snprintf(exp,size,"?"); break;
290 }
291}
292
293
53fb848a 294void annotateIso7816(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
295{
296 switch ( cmd[1] ){
297 case ISO7816_READ_BINARY :snprintf(exp, size, "READ BINARY");break;
298 case ISO7816_WRITE_BINARY :snprintf(exp, size, "WRITE BINARY");break;
299 case ISO7816_UPDATE_BINARY :snprintf(exp, size, "UPDATE BINARY");break;
300 case ISO7816_ERASE_BINARY :snprintf(exp, size, "ERASE BINARY");break;
301 case ISO7816_READ_RECORDS :snprintf(exp, size, "READ RECORD(S)");break;
302 case ISO7816_WRITE_RECORD :snprintf(exp, size, "WRITE RECORD");break;
303 case ISO7816_APPEND_RECORD :snprintf(exp, size, "APPEND RECORD");break;
304 case ISO7816_UPDATE_DATA :snprintf(exp, size, "UPDATE DATA");break;
305 case ISO7816_GET_DATA :snprintf(exp, size, "GET DATA");break;
306 case ISO7816_PUT_DATA :snprintf(exp, size, "PUT DATA");break;
307 case ISO7816_SELECT_FILE :snprintf(exp, size, "SELECT FILE");break;
308 case ISO7816_VERIFY :snprintf(exp, size, "VERIFY");break;
309 case ISO7816_INTERNAL_AUTHENTICATE :snprintf(exp, size, "INTERNAL AUTHENTICATE");break;
310 case ISO7816_EXTERNAL_AUTHENTICATE :snprintf(exp, size, "EXTERNAL AUTHENTICATE");break;
311 case ISO7816_GET_CHALLENGE :snprintf(exp, size, "GET CHALLENGE");break;
312 case ISO7816_MANAGE_CHANNEL :snprintf(exp, size, "MANAGE CHANNEL");break;
313 case ISO7816_GET_RESPONSE :snprintf(exp, size, "GET RESPONSE");break;
314 case ISO7816_ENVELOPE :snprintf(exp, size, "ENVELOPE");break;
315 case ISO7816_GET_PROCESSING_OPTIONS :snprintf(exp, size, "GET PROCESSING OPTIONS");break;
316 default :snprintf(exp,size,"?"); break;
317 }
318}
319
320
d3bcdbda 321void annotateIso14443_4(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) {
53fb848a 322 // S-block
323 if ((cmd[0] & 0xc3) == 0xc2) {
324 switch (cmd[0] & 0x30) {
325 case 0x00 : snprintf(exp, size, "S-block DESELECT"); break;
326 case 0x30 : snprintf(exp, size, "S-block WTX"); break;
327 default : snprintf(exp, size, "S-block (RFU)"); break;
328 }
329 }
330 // R-block (ack)
331 else if ((cmd[0] & 0xe0) == 0xa0) {
332 if ((cmd[0] & 0x10) == 0)
333 snprintf(exp, size, "R-block ACK");
334 else
335 snprintf(exp, size, "R-block NACK");
336 }
337 // I-block
338 else {
339 int pos = 1;
340 switch (cmd[0] & 0x0c) {
ae60ceca 341 case 0x08: // CID following
53fb848a 342 case 0x04: // NAD following
343 pos = 2;
344 break;
345 case 0x0c: // CID and NAD following
346 pos = 3;
347 break;
348 default:
349 pos = 1; // no CID, no NAD
350 break;
351 }
352 annotateIso7816(exp, size, &cmd[pos], cmdsize-pos);
353 }
354}
355
356
868deeb7 357/**
35806 00 = INITIATE
3590E xx = SELECT ID (xx = Chip-ID)
3600B = Get UID
36108 yy = Read Block (yy = block number)
36209 yy dd dd dd dd = Write Block (yy = block number; dd dd dd dd = data to be written)
3630C = Reset to Inventory
3640F = Completion
3650A 11 22 33 44 55 66 = Authenticate (11 22 33 44 55 66 = data to authenticate)
366**/
367
d3bcdbda 368void annotateIso14443b(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) {
868deeb7 369 switch(cmd[0]){
370 case ISO14443B_REQB : snprintf(exp,size,"REQB");break;
371 case ISO14443B_ATTRIB : snprintf(exp,size,"ATTRIB");break;
372 case ISO14443B_HALT : snprintf(exp,size,"HALT");break;
373 case ISO14443B_INITIATE : snprintf(exp,size,"INITIATE");break;
374 case ISO14443B_SELECT : snprintf(exp,size,"SELECT(%d)",cmd[1]);break;
375 case ISO14443B_GET_UID : snprintf(exp,size,"GET UID");break;
376 case ISO14443B_READ_BLK : snprintf(exp,size,"READ_BLK(%d)", cmd[1]);break;
377 case ISO14443B_WRITE_BLK : snprintf(exp,size,"WRITE_BLK(%d)",cmd[1]);break;
378 case ISO14443B_RESET : snprintf(exp,size,"RESET");break;
379 case ISO14443B_COMPLETION : snprintf(exp,size,"COMPLETION");break;
380 case ISO14443B_AUTHENTICATE : snprintf(exp,size,"AUTHENTICATE");break;
381 default : snprintf(exp,size ,"?");break;
382 }
383
384}
385
d3bcdbda 386void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize) {
6612a5a2 387 switch(cmd[0])
388 {
53fb848a 389 case ISO14443A_CMD_WUPA:
390 snprintf(exp,size,"WUPA");
a31f7f89 391 break;
6612a5a2 392 case ISO14443A_CMD_ANTICOLL_OR_SELECT:{
393 // 93 20 = Anticollision (usage: 9320 - answer: 4bytes UID+1byte UID-bytes-xor)
394 // 93 70 = Select (usage: 9370+5bytes 9320 answer - answer: 1byte SAK)
395 if(cmd[1] == 0x70)
396 {
397 snprintf(exp,size,"SELECT_UID"); break;
398 }else
399 {
400 snprintf(exp,size,"ANTICOLL"); break;
401 }
402 }
403 case ISO14443A_CMD_ANTICOLL_OR_SELECT_2:{
404 //95 20 = Anticollision of cascade level2
405 //95 70 = Select of cascade level2
406 if(cmd[2] == 0x70)
407 {
408 snprintf(exp,size,"SELECT_UID-2"); break;
409 }else
410 {
411 snprintf(exp,size,"ANTICOLL-2"); break;
412 }
413 }
53fb848a 414 case ISO14443A_CMD_REQA:
415 snprintf(exp,size,"REQA");
a31f7f89 416 break;
b8dd1ef6 417 case MIFARE_CMD_READBLOCK: snprintf(exp,size,"READBLOCK(%d)",cmd[1]); break;
418 case MIFARE_CMD_WRITEBLOCK: snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]); break;
53fb848a 419 case ISO14443A_CMD_HALT:
420 snprintf(exp,size,"HALT");
6612a5a2 421 MifareAuthState = masNone;
422 break;
53fb848a 423 case ISO14443A_CMD_RATS: snprintf(exp,size,"RATS"); break;
424 case MIFARE_CMD_INC: snprintf(exp,size,"INC(%d)",cmd[1]); break;
425 case MIFARE_CMD_DEC: snprintf(exp,size,"DEC(%d)",cmd[1]); break;
426 case MIFARE_CMD_RESTORE: snprintf(exp,size,"RESTORE(%d)",cmd[1]); break;
427 case MIFARE_CMD_TRANSFER: snprintf(exp,size,"TRANSFER(%d)",cmd[1]); break;
6612a5a2 428 case MIFARE_AUTH_KEYA:
429 if ( cmdsize > 3) {
53fb848a 430 snprintf(exp,size,"AUTH-A(%d)",cmd[1]);
6612a5a2 431 MifareAuthState = masNt;
432 } else {
53fb848a 433 // case MIFARE_ULEV1_VERSION : both 0x60.
6612a5a2 434 snprintf(exp,size,"EV1 VERSION");
435 }
436 break;
437 case MIFARE_AUTH_KEYB:
438 MifareAuthState = masNt;
53fb848a 439 snprintf(exp,size,"AUTH-B(%d)",cmd[1]);
6612a5a2 440 break;
53fb848a 441 case MIFARE_MAGICWUPC1: snprintf(exp,size,"MAGIC WUPC1"); break;
442 case MIFARE_MAGICWUPC2: snprintf(exp,size,"MAGIC WUPC2"); break;
443 case MIFARE_MAGICWIPEC: snprintf(exp,size,"MAGIC WIPEC"); break;
444 case MIFARE_ULC_AUTH_1: snprintf(exp,size,"AUTH "); break;
445 case MIFARE_ULC_AUTH_2: snprintf(exp,size,"AUTH_ANSW"); break;
6612a5a2 446 case MIFARE_ULEV1_AUTH:
447 if ( cmdsize == 7 )
448 snprintf(exp,size,"PWD-AUTH KEY: 0x%02x%02x%02x%02x", cmd[1], cmd[2], cmd[3], cmd[4] );
449 else
450 snprintf(exp,size,"PWD-AUTH");
451 break;
452 case MIFARE_ULEV1_FASTREAD:{
453 if ( cmdsize >=3 && cmd[2] <= 0xE6)
53fb848a 454 snprintf(exp,size,"READ RANGE (%d-%d)",cmd[1],cmd[2]);
6612a5a2 455 else
456 snprintf(exp,size,"?");
457 break;
458 }
459 case MIFARE_ULC_WRITE:{
460 if ( cmd[1] < 0x21 )
53fb848a 461 snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]);
6612a5a2 462 else
463 snprintf(exp,size,"?");
464 break;
465 }
466 case MIFARE_ULEV1_READ_CNT:{
467 if ( cmd[1] < 5 )
468 snprintf(exp,size,"READ CNT(%d)",cmd[1]);
469 else
470 snprintf(exp,size,"?");
471 break;
472 }
473 case MIFARE_ULEV1_INCR_CNT:{
474 if ( cmd[1] < 5 )
475 snprintf(exp,size,"INCR(%d)",cmd[1]);
476 else
477 snprintf(exp,size,"?");
478 break;
479 }
53fb848a 480 case MIFARE_ULEV1_READSIG: snprintf(exp,size,"READ_SIG"); break;
481 case MIFARE_ULEV1_CHECKTEAR: snprintf(exp,size,"CHK_TEARING(%d)",cmd[1]); break;
482 case MIFARE_ULEV1_VCSL: snprintf(exp,size,"VCSL"); break;
483 default: snprintf(exp,size,"?"); break;
6612a5a2 484 }
485 return;
486}
487
b957bcd3 488void annotateMifare(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize, uint8_t* parity, uint8_t paritysize, bool isResponse) {
2d7bdee3 489 if (!isResponse && cmdsize == 1) {
490 switch(cmd[0]) {
53fb848a 491 case ISO14443A_CMD_WUPA:
492 case ISO14443A_CMD_REQA:
2d7bdee3 493 MifareAuthState = masNone;
494 break;
495 default:
496 break;
497 }
498 }
53fb848a 499
aadc6bf1
OM		 500 // get UID
501 if (MifareAuthState == masNone) {
7b215d14 502 if (cmdsize == 9 && cmd[0] == ISO14443A_CMD_ANTICOLL_OR_SELECT && cmd[1] == 0x70) {
aadc6bf1
OM		 503 ClearAuthData();
504 AuthData.uid = bytes_to_num(&cmd[2], 4);
505 }
7b215d14 506 if (cmdsize == 9 && cmd[0] == ISO14443A_CMD_ANTICOLL_OR_SELECT_2 && cmd[1] == 0x70) {
aadc6bf1
OM		 507 ClearAuthData();
508 AuthData.uid = bytes_to_num(&cmd[2], 4);
509 }
510 }
53fb848a 511
6612a5a2 512 switch(MifareAuthState) {
513 case masNt:
fb30f5a1 514 if (cmdsize == 4 && isResponse) {
aadc6bf1 515 snprintf(exp,size,"AUTH: nt %s", (AuthData.first_auth) ? "" : "(enc)");
6612a5a2 516 MifareAuthState = masNrAr;
079563a0 517 if (AuthData.first_auth) {
7b215d14 518 AuthData.nt = bytes_to_num(cmd, 4);
079563a0 519 } else {
7b215d14 520 AuthData.nt_enc = bytes_to_num(cmd, 4);
b957bcd3 521 AuthData.nt_enc_par = parity[0];
079563a0 522 }
6612a5a2 523 return;
524 } else {
525 MifareAuthState = masError;
6612a5a2 526 }
527 break;
528 case masNrAr:
fb30f5a1 529 if (cmdsize == 8 && !isResponse) {
6c30a244 530 snprintf(exp,size,"AUTH: nr ar (enc)");
6612a5a2 531 MifareAuthState = masAt;
7b215d14
OM		 532 AuthData.nr_enc = bytes_to_num(cmd, 4);
533 AuthData.ar_enc = bytes_to_num(&cmd[4], 4);
b957bcd3 534 AuthData.ar_enc_par = parity[0] << 4;
6612a5a2 535 return;
536 } else {
537 MifareAuthState = masError;
538 }
539 break;
540 case masAt:
fb30f5a1 541 if (cmdsize == 4 && isResponse) {
6c30a244 542 snprintf(exp,size,"AUTH: at (enc)");
747885a6 543 MifareAuthState = masAuthComplete;
7b215d14 544 AuthData.at_enc = bytes_to_num(cmd, 4);
b957bcd3 545 AuthData.at_enc_par = parity[0];
6612a5a2 546 return;
547 } else {
548 MifareAuthState = masError;
549 }
550 break;
551 default:
552 break;
553 }
53fb848a 554
747885a6 555 if (!isResponse && ((MifareAuthState == masNone) || (MifareAuthState == masError)))
6612a5a2 556 annotateIso14443a(exp, size, cmd, cmdsize);
53fb848a 557
6612a5a2 558}
7b215d14 559
0d2624a0 560
561static uint64_t GetCrypto1ProbableKey(TAuthData *ad) {
562 struct Crypto1State *revstate = lfsr_recovery64(ad->ks2, ad->ks3);
563 lfsr_rollback_word(revstate, 0, 0);
564 lfsr_rollback_word(revstate, 0, 0);
565 lfsr_rollback_word(revstate, ad->nr_enc, 1);
566 lfsr_rollback_word(revstate, ad->uid ^ ad->nt, 0);
567
568 uint64_t lfsr = 0;
569 crypto1_get_lfsr(revstate, &lfsr);
570 crypto1_destroy(revstate);
53fb848a 571
0d2624a0 572 return lfsr;
573}
574
575
576static bool NTParityChk(TAuthData *ad, uint32_t ntx) {
577 if (
578 (oddparity8(ntx >> 8 & 0xff) ^ (ntx & 0x01) ^ ((ad->nt_enc_par >> 5) & 0x01) ^ (ad->nt_enc & 0x01)) ||
579 (oddparity8(ntx >> 16 & 0xff) ^ (ntx >> 8 & 0x01) ^ ((ad->nt_enc_par >> 6) & 0x01) ^ (ad->nt_enc >> 8 & 0x01)) ||
580 (oddparity8(ntx >> 24 & 0xff) ^ (ntx >> 16 & 0x01) ^ ((ad->nt_enc_par >> 7) & 0x01) ^ (ad->nt_enc >> 16 & 0x01))
581 )
582 return false;
53fb848a 583
0d2624a0 584 uint32_t ar = prng_successor(ntx, 64);
585 if (
586 (oddparity8(ar >> 8 & 0xff) ^ (ar & 0x01) ^ ((ad->ar_enc_par >> 5) & 0x01) ^ (ad->ar_enc & 0x01)) ||
587 (oddparity8(ar >> 16 & 0xff) ^ (ar >> 8 & 0x01) ^ ((ad->ar_enc_par >> 6) & 0x01) ^ (ad->ar_enc >> 8 & 0x01)) ||
588 (oddparity8(ar >> 24 & 0xff) ^ (ar >> 16 & 0x01) ^ ((ad->ar_enc_par >> 7) & 0x01) ^ (ad->ar_enc >> 16 & 0x01))
589 )
590 return false;
591
592 uint32_t at = prng_successor(ntx, 96);
593 if (
594 (oddparity8(ar & 0xff) ^ (at >> 24 & 0x01) ^ ((ad->ar_enc_par >> 4) & 0x01) ^ (ad->at_enc >> 24 & 0x01)) ||
595 (oddparity8(at >> 8 & 0xff) ^ (at & 0x01) ^ ((ad->at_enc_par >> 5) & 0x01) ^ (ad->at_enc & 0x01)) ||
596 (oddparity8(at >> 16 & 0xff) ^ (at >> 8 & 0x01) ^ ((ad->at_enc_par >> 6) & 0x01) ^ (ad->at_enc >> 8 & 0x01)) ||
597 (oddparity8(at >> 24 & 0xff) ^ (at >> 16 & 0x01) ^ ((ad->at_enc_par >> 7) & 0x01) ^ (ad->at_enc >> 16 & 0x01))
598 )
599 return false;
53fb848a 600
0d2624a0 601 return true;
602}
603
604
605static bool CheckCrypto1Parity(uint8_t *cmd_enc, uint8_t cmdsize, uint8_t *cmd, uint8_t *parity_enc) {
606 for (int i = 0; i < cmdsize - 1; i++) {
607 if (oddparity8(cmd[i]) ^ (cmd[i + 1] & 0x01) ^ ((parity_enc[i / 8] >> (7 - i % 8)) & 0x01) ^ (cmd_enc[i + 1] & 0x01))
608 return false;
609 }
53fb848a 610
0d2624a0 611 return true;
612}
613
614
615static bool NestedCheckKey(uint64_t key, TAuthData *ad, uint8_t *cmd, uint8_t cmdsize, uint8_t *parity) {
616 uint8_t buf[32] = {0};
617 struct Crypto1State *pcs;
53fb848a 618
0d2624a0 619 AuthData.ks2 = 0;
620 AuthData.ks3 = 0;
621
622 pcs = crypto1_create(key);
623 uint32_t nt1 = crypto1_word(pcs, ad->nt_enc ^ ad->uid, 1) ^ ad->nt_enc;
624 uint32_t ar = prng_successor(nt1, 64);
625 uint32_t at = prng_successor(nt1, 96);
626
627 crypto1_word(pcs, ad->nr_enc, 1);
53fb848a 628// uint32_t nr1 = crypto1_word(pcs, ad->nr_enc, 1) ^ ad->nr_enc; // if needs deciphered nr
0d2624a0 629 uint32_t ar1 = crypto1_word(pcs, 0, 0) ^ ad->ar_enc;
630 uint32_t at1 = crypto1_word(pcs, 0, 0) ^ ad->at_enc;
631
632 if (!(ar == ar1 && at == at1 && NTParityChk(ad, nt1))) {
633 crypto1_destroy(pcs);
634 return false;
635 }
636
637 memcpy(buf, cmd, cmdsize);
638 mf_crypto1_decrypt(pcs, buf, cmdsize, 0);
53fb848a 639
0d2624a0 640 crypto1_destroy(pcs);
53fb848a 641
0d2624a0 642 if (!CheckCrypto1Parity(cmd, cmdsize, buf, parity))
643 return false;
644
53fb848a 645 if(!CheckCrc14443(CRC_14443_A, buf, cmdsize))
0d2624a0 646 return false;
53fb848a 647
0d2624a0 648 AuthData.nt = nt1;
649 AuthData.ks2 = AuthData.ar_enc ^ ar;
650 AuthData.ks3 = AuthData.at_enc ^ at;
651
652 return true;
653}
654
655
656static bool DecodeMifareData(uint8_t *cmd, uint8_t cmdsize, uint8_t *parity, bool isResponse, uint8_t *mfData, size_t *mfDataLen) {
53fb848a 657 static struct Crypto1State *traceCrypto1;
dca8220f 658 static uint64_t mfLastKey;
53fb848a 659
7b215d14 660 *mfDataLen = 0;
53fb848a 661
747885a6
OM		 662 if (MifareAuthState == masAuthComplete) {
663 if (traceCrypto1) {
664 crypto1_destroy(traceCrypto1);
0113dcf3 665 traceCrypto1 = NULL;
747885a6
OM		 666 }
667
668 MifareAuthState = masFirstData;
669 return false;
670 }
53fb848a 671
7b215d14
OM		 672 if (cmdsize > 32)
673 return false;
53fb848a 674
7b215d14
OM		 675 if (MifareAuthState == masFirstData) {
676 if (AuthData.first_auth) {
e01bc794
OM		 677 AuthData.ks2 = AuthData.ar_enc ^ prng_successor(AuthData.nt, 64);
678 AuthData.ks3 = AuthData.at_enc ^ prng_successor(AuthData.nt, 96);
0113dcf3 679
680 mfLastKey = GetCrypto1ProbableKey(&AuthData);
53fb848a 681 PrintAndLog(" | * | key | probable key:%012"PRIx64" Prng:%s ks2:%08x ks3:%08x | |",
0113dcf3 682 mfLastKey,
28ee794f 683 validate_prng_nonce(AuthData.nt) ? "WEAK": "HARD",
e01bc794
OM		 684 AuthData.ks2,
685 AuthData.ks3);
53fb848a 686
7b215d14 687 AuthData.first_auth = false;
747885a6 688
e01bc794 689 traceCrypto1 = lfsr_recovery64(AuthData.ks2, AuthData.ks3);
7b215d14 690 } else {
0113dcf3 691 if (traceCrypto1) {
692 crypto1_destroy(traceCrypto1);
693 traceCrypto1 = NULL;
694 }
695
747885a6 696 // check last used key
45b4ac09 697 if (mfLastKey) {
2d7bdee3 698 if (NestedCheckKey(mfLastKey, &AuthData, cmd, cmdsize, parity)) {
53fb848a 699 PrintAndLog(" | * | key | last used key:%012"PRIx64" ks2:%08x ks3:%08x | |",
0113dcf3 700 mfLastKey,
2d7bdee3 701 AuthData.ks2,
702 AuthData.ks3);
703
704 traceCrypto1 = lfsr_recovery64(AuthData.ks2, AuthData.ks3);
c6a886fb 705 };
747885a6 706 }
53fb848a 707
747885a6 708 // check default keys
45b4ac09 709 if (!traceCrypto1) {
7bea1581 710 for (int defaultKeyCounter = 0; defaultKeyCounter < MifareDefaultKeysSize; defaultKeyCounter++){
2d7bdee3 711 if (NestedCheckKey(MifareDefaultKeys[defaultKeyCounter], &AuthData, cmd, cmdsize, parity)) {
53fb848a 712 PrintAndLog(" | * | key | default key:%012"PRIx64" ks2:%08x ks3:%08x | |",
0113dcf3 713 MifareDefaultKeys[defaultKeyCounter],
2d7bdee3 714 AuthData.ks2,
715 AuthData.ks3);
716
0113dcf3 717 mfLastKey = MifareDefaultKeys[defaultKeyCounter];
856da9a1 718 traceCrypto1 = lfsr_recovery64(AuthData.ks2, AuthData.ks3);
7bea1581
OM		 719 break;
720 };
721 }
c6a886fb 722 }
53fb848a 723
747885a6 724 // nested
7bea1581 725 if (!traceCrypto1 && validate_prng_nonce(AuthData.nt)) {
53fb848a 726 uint32_t ntx = prng_successor(AuthData.nt, 90);
7bea1581
OM		 727 for (int i = 0; i < 16383; i++) {
728 ntx = prng_successor(ntx, 1);
729 if (NTParityChk(&AuthData, ntx)){
730
731 uint32_t ks2 = AuthData.ar_enc ^ prng_successor(ntx, 64);
732 uint32_t ks3 = AuthData.at_enc ^ prng_successor(ntx, 96);
733 struct Crypto1State *pcs = lfsr_recovery64(ks2, ks3);
734 memcpy(mfData, cmd, cmdsize);
735 mf_crypto1_decrypt(pcs, mfData, cmdsize, 0);
53fb848a 736
7bea1581 737 crypto1_destroy(pcs);
0113dcf3 738 if (CheckCrypto1Parity(cmd, cmdsize, mfData, parity) && CheckCrc14443(CRC_14443_A, mfData, cmdsize)) {
e01bc794
OM		 739 AuthData.ks2 = ks2;
740 AuthData.ks3 = ks3;
0113dcf3 741
742 AuthData.nt = ntx;
743 mfLastKey = GetCrypto1ProbableKey(&AuthData);
53fb848a 744 PrintAndLog(" | * | key | nested probable key:%012"PRIx64" ks2:%08x ks3:%08x | |",
0113dcf3 745 mfLastKey,
746 AuthData.ks2,
747 AuthData.ks3);
748
e01bc794 749 traceCrypto1 = lfsr_recovery64(AuthData.ks2, AuthData.ks3);
7bea1581
OM		 750 break;
751 }
53fb848a 752 }
7bea1581 753 }
747885a6 754 }
53fb848a 755
747885a6 756 //hardnested
7bea1581 757 if (!traceCrypto1) {
2d7bdee3 758 printf("hardnested not implemented. uid:%x nt:%x ar_enc:%x at_enc:%x\n", AuthData.uid, AuthData.nt, AuthData.ar_enc, AuthData.at_enc);
45b4ac09 759 MifareAuthState = masError;
760
761 /* TOO SLOW( needs to have more strong filter. with this filter - aprox 4 mln tests
762 uint32_t t = msclock();
763 uint32_t t1 = t;
764 int n = 0;
765 for (uint32_t i = 0; i < 0xFFFFFFFF; i++) {
766 if (NTParityChk(&AuthData, i)){
767
768 uint32_t ks2 = AuthData.ar_enc ^ prng_successor(i, 64);
769 uint32_t ks3 = AuthData.at_enc ^ prng_successor(i, 96);
770 struct Crypto1State *pcs = lfsr_recovery64(ks2, ks3);
771
772
773
774
775 n++;
776
777 if (!(n % 100000)) {
778 printf("delta=%d n=%d ks2=%x ks3=%x \n", msclock() - t1 , n, ks2, ks3);
779 t1 = msclock();
780 }
781
782 }
783 }
784 printf("delta=%d n=%d\n", msclock() - t, n);
785 */
7bea1581 786 }
7b215d14 787 }
53fb848a 788
789
790
7b215d14 791 MifareAuthState = masData;
7b215d14 792 }
53fb848a 793
747885a6
OM		 794 if (MifareAuthState == masData && traceCrypto1) {
795 memcpy(mfData, cmd, cmdsize);
796 mf_crypto1_decrypt(traceCrypto1, mfData, cmdsize, 0);
797 *mfDataLen = cmdsize;
7b215d14 798 }
53fb848a 799
7b215d14
OM		 800 return *mfDataLen > 0;
801}
802
0d2624a0 803
d3bcdbda 804bool is_last_record(uint16_t tracepos, uint8_t *trace, uint16_t traceLen) {
0d2624a0 805 return(tracepos + sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint16_t) >= traceLen);
806}
807
808
d3bcdbda 809bool next_record_is_response(uint16_t tracepos, uint8_t *trace) {
0d2624a0 810 uint16_t next_records_datalen = *((uint16_t *)(trace + tracepos + sizeof(uint32_t) + sizeof(uint16_t)));
0d2624a0 811 return(next_records_datalen & 0x8000);
812}
dca8220f 813
0d2624a0 814
d3bcdbda 815bool 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) {
0d2624a0 816
53fb848a 817#define MAX_TOPAZ_READER_CMD_LEN 16
0d2624a0 818
819 uint32_t last_timestamp = timestamp + *duration;
820
821 if ((*data_len != 1) || (frame[0] == TOPAZ_WUPA) || (frame[0] == TOPAZ_REQA)) return false;
822
823 memcpy(topaz_reader_command, frame, *data_len);
824
825 while (!is_last_record(*tracepos, trace, traceLen) && !next_record_is_response(*tracepos, trace)) {
826 uint32_t next_timestamp = *((uint32_t *)(trace + *tracepos));
827 *tracepos += sizeof(uint32_t);
828 uint16_t next_duration = *((uint16_t *)(trace + *tracepos));
829 *tracepos += sizeof(uint16_t);
830 uint16_t next_data_len = *((uint16_t *)(trace + *tracepos)) & 0x7FFF;
831 *tracepos += sizeof(uint16_t);
832 uint8_t *next_frame = (trace + *tracepos);
833 *tracepos += next_data_len;
834 if ((next_data_len == 1) && (*data_len + next_data_len <= MAX_TOPAZ_READER_CMD_LEN)) {
835 memcpy(topaz_reader_command + *data_len, next_frame, next_data_len);
836 *data_len += next_data_len;
837 last_timestamp = next_timestamp + next_duration;
838 } else {
839 // rewind and exit
840 *tracepos = *tracepos - next_data_len - sizeof(uint16_t) - sizeof(uint16_t) - sizeof(uint32_t);
841 break;
842 }
843 uint16_t next_parity_len = (next_data_len-1)/8 + 1;
844 *tracepos += next_parity_len;
845 }
846
847 *duration = last_timestamp - timestamp;
53fb848a 848
dca8220f
OM		 849 return true;
850}
851
0d2624a0 852
d3bcdbda 853uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, uint8_t protocol, bool showWaitCycles, bool markCRCBytes, uint32_t *prev_EOT, bool times_in_us) {
0d2624a0 854 bool isResponse;
855 uint16_t data_len, parity_len;
856 uint32_t duration;
857 uint8_t topaz_reader_command[9];
d3bcdbda 858 uint32_t timestamp, first_timestamp;
859 uint32_t EndOfTransmissionTimestamp = 0;
0d2624a0 860 char explanation[30] = {0};
861 uint8_t mfData[32] = {0};
862 size_t mfDataLen = 0;
863
864 if (tracepos + sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint16_t) > traceLen) return traceLen;
53fb848a 865
0d2624a0 866 first_timestamp = *((uint32_t *)(trace));
867 timestamp = *((uint32_t *)(trace + tracepos));
2d7bdee3 868
0d2624a0 869 tracepos += 4;
870 duration = *((uint16_t *)(trace + tracepos));
871 tracepos += 2;
872 data_len = *((uint16_t *)(trace + tracepos));
873 tracepos += 2;
2d7bdee3 874
0d2624a0 875 if (data_len & 0x8000) {
876 data_len &= 0x7fff;
877 isResponse = true;
878 } else {
879 isResponse = false;
880 }
881 parity_len = (data_len-1)/8 + 1;
dca8220f 882
0d2624a0 883 if (tracepos + data_len + parity_len > traceLen) {
884 return traceLen;
44964fd1 885 }
0d2624a0 886 uint8_t *frame = trace + tracepos;
887 tracepos += data_len;
888 uint8_t *parityBytes = trace + tracepos;
889 tracepos += parity_len;
dca8220f 890
0d2624a0 891 if (protocol == TOPAZ && !isResponse) {
892 // topaz reader commands come in 1 or 9 separate frames with 7 or 8 Bits each.
893 // merge them:
894 if (merge_topaz_reader_frames(timestamp, &duration, &tracepos, traceLen, trace, frame, topaz_reader_command, &data_len)) {
895 frame = topaz_reader_command;
896 }
897 }
53fb848a 898
3d2c9c9b 899 // adjust for different time scales
900 if (protocol == ICLASS || protocol == ISO_15693) {
3d2c9c9b 901 duration *= 32;
902 }
ae60ceca 903
0d2624a0 904 //Check the CRC status
905 uint8_t crcStatus = 2;
906
907 if (data_len > 2) {
908 switch (protocol) {
909 case ICLASS:
910 crcStatus = iclass_CRC_check(isResponse, frame, data_len);
911 break;
912 case ISO_14443B:
913 case TOPAZ:
53fb848a 914 crcStatus = iso14443B_CRC_check(isResponse, frame, data_len);
0d2624a0 915 break;
916 case PROTO_MIFARE:
917 crcStatus = mifare_CRC_check(isResponse, frame, data_len);
918 break;
919 case ISO_14443A:
920 crcStatus = iso14443A_CRC_check(isResponse, frame, data_len);
921 break;
53fb848a 922 case ISO_14443_4:
923 crcStatus = iso14443_4_CRC_check(frame, data_len);
924 break;
0d2624a0 925 case ISO_15693:
926 crcStatus = iso15693_CRC_check(frame, data_len);
927 break;
53fb848a 928 default:
0d2624a0 929 break;
930 }
931 }
932 //0 CRC-command, CRC not ok
933 //1 CRC-command, CRC ok
934 //2 Not crc-command
935
936 //--- Draw the data column
0d2624a0 937 char line[16][110];
938
939 for (int j = 0; j < data_len && j/16 < 16; j++) {
0d2624a0 940 uint8_t parityBits = parityBytes[j>>3];
53fb848a 941 if (protocol != ISO_14443B
942 && protocol != ISO_15693
3d2c9c9b 943 && protocol != ICLASS
53fb848a 944 && protocol != ISO_7816_4
945 && (isResponse || protocol == ISO_14443A)
946 && (oddparity8(frame[j]) != ((parityBits >> (7-(j&0x0007))) & 0x01))) {
0d2624a0 947 snprintf(line[j/16]+(( j % 16) * 4), 110, " %02x!", frame[j]);
948 } else {
949 snprintf(line[j/16]+(( j % 16) * 4), 110, " %02x ", frame[j]);
950 }
0d2624a0 951 }
952
953 if (markCRCBytes) {
3d2c9c9b 954 if (crcStatus == 0 || crcStatus == 1) { //CRC-command
0d2624a0 955 char *pos1 = line[(data_len-2)/16]+(((data_len-2) % 16) * 4);
956 (*pos1) = '[';
957 char *pos2 = line[(data_len)/16]+(((data_len) % 16) * 4);
958 sprintf(pos2, "%c", ']');
959 }
960 }
961
a8561e35 962 // mark short bytes (less than 8 Bit + Parity)
963 if (protocol == ISO_14443A || protocol == PROTO_MIFARE) {
964 if (duration < 128 * (9 * data_len)) {
965 line[(data_len-1)/16][((data_len-1)%16) * 4 + 3] = '\'';
ae60ceca 966 }
a8561e35 967 }
ae60ceca 968
0d2624a0 969 if (data_len == 0) {
ae60ceca 970 if (protocol == ICLASS && duration == 2048) {
971 sprintf(line[0], " <SOF>");
972 } else {
973 sprintf(line[0], " <empty trace - possible error>");
974 }
0d2624a0 975 }
976
977 //--- Draw the CRC column
978 char *crc = (crcStatus == 0 ? "!crc" : (crcStatus == 1 ? " ok " : " "));
979
0d2624a0 980 if (protocol == PROTO_MIFARE)
981 annotateMifare(explanation, sizeof(explanation), frame, data_len, parityBytes, parity_len, isResponse);
53fb848a 982
3d2c9c9b 983 if (!isResponse) {
0d2624a0 984 switch(protocol) {
53fb848a 985 case ICLASS: annotateIclass(explanation,sizeof(explanation),frame,data_len); break;
986 case ISO_14443A: annotateIso14443a(explanation,sizeof(explanation),frame,data_len); break;
987 case ISO_14443B: annotateIso14443b(explanation,sizeof(explanation),frame,data_len); break;
988 case TOPAZ: annotateTopaz(explanation,sizeof(explanation),frame,data_len); break;
989 case ISO_15693: annotateIso15693(explanation,sizeof(explanation),frame,data_len); break;
990 case ISO_7816_4: annotateIso7816(explanation, sizeof(explanation), frame, data_len); break;
991 case ISO_14443_4: annotateIso14443_4(explanation, sizeof(explanation), frame, data_len); break;
992 default: break;
0d2624a0 993 }
994 }
2d7bdee3 995
d3bcdbda 996 uint32_t previousEndOfTransmissionTimestamp = 0;
997 if (prev_EOT) {
998 if (*prev_EOT) {
999 previousEndOfTransmissionTimestamp = *prev_EOT;
1000 } else {
1001 previousEndOfTransmissionTimestamp = timestamp;
1002 }
1003 }
1004 EndOfTransmissionTimestamp = timestamp + duration;
1005 if (prev_EOT) *prev_EOT = EndOfTransmissionTimestamp;
1006
0d2624a0 1007 int num_lines = MIN((data_len - 1)/16 + 1, 16);
1008 for (int j = 0; j < num_lines ; j++) {
1009 if (j == 0) {
d3bcdbda 1010 uint32_t time1 = timestamp - first_timestamp;
1011 uint32_t time2 = EndOfTransmissionTimestamp - first_timestamp;
1012 if (prev_EOT) {
1013 time1 = timestamp - previousEndOfTransmissionTimestamp;
1014 time2 = duration;
1015 }
1016 if (times_in_us) {
1017 PrintAndLog(" %10.1f | %10.1f | %s |%-64s | %s| %s",
1018 (float)time1/13.56,
1019 (float)time2/13.56,
1020 isResponse ? "Tag" : "Rdr",
1021 line[j],
1022 (j == num_lines-1) ? crc : " ",
1023 (j == num_lines-1) ? explanation : "");
1024 } else {
1025 PrintAndLog(" %10" PRIu32 " | %10" PRIu32 " | %s |%-64s | %s| %s",
1026 time1,
1027 time2,
1028 isResponse ? "Tag" : "Rdr",
1029 line[j],
1030 (j == num_lines-1) ? crc : " ",
1031 (j == num_lines-1) ? explanation : "");
1032 }
0d2624a0 1033 } else {
1034 PrintAndLog(" | | |%-64s | %s| %s",
1035 line[j],
1036 (j == num_lines-1) ? crc : " ",
1037 (j == num_lines-1) ? explanation : "");
1038 }
1039 }
ae60ceca 1040
0d2624a0 1041 if (DecodeMifareData(frame, data_len, parityBytes, isResponse, mfData, &mfDataLen)) {
1042 memset(explanation, 0x00, sizeof(explanation));
1043 if (!isResponse) {
1044 explanation[0] = '>';
1045 annotateIso14443a(&explanation[1], sizeof(explanation) - 1, mfData, mfDataLen);
1046 }
1047 uint8_t crcc = iso14443A_CRC_check(isResponse, mfData, mfDataLen);
1048 PrintAndLog(" | * | dec |%-64s | %-4s| %s",
1049 sprint_hex(mfData, mfDataLen),
1050 (crcc == 0 ? "!crc" : (crcc == 1 ? " ok " : " ")),
1051 (true) ? explanation : "");
1052 };
2d7bdee3 1053
0d2624a0 1054 if (is_last_record(tracepos, trace, traceLen)) return traceLen;
53fb848a 1055
0d2624a0 1056 if (showWaitCycles && !isResponse && next_record_is_response(tracepos, trace)) {
1057 uint32_t next_timestamp = *((uint32_t *)(trace + tracepos));
3d2c9c9b 1058
0d2624a0 1059 PrintAndLog(" %10d | %10d | %s | fdt (Frame Delay Time): %d",
1060 (EndOfTransmissionTimestamp - first_timestamp),
1061 (next_timestamp - first_timestamp),
1062 " ",
1063 (next_timestamp - EndOfTransmissionTimestamp));
1064 }
1065
1066 return tracepos;
2d7bdee3 1067}
1068
0d2624a0 1069
d3bcdbda 1070int CmdHFList(const char *Cmd) {
1071
1072 CLIParserInit("hf list", "\nList or save protocol data.",
1073 "examples: hf list 14a -f -- interpret as ISO14443A communication and display Frame Delay Times\n"\
1074 " hf list iclass -- interpret as iClass trace\n"\
1075 " hf list -s myCardTrace.trc -- save trace for later use\n"\
1076 " hf list 14a -l myCardTrace.trc -- load trace and interpret as ISO14443A communication\n");
1077 void* argtable[] = {
1078 arg_param_begin,
1079 arg_lit0("f", "fdt", "display fdt (frame delay times)"),
1080 arg_lit0("r", "relative", "show relative times (gap and duration)"),
1081 arg_lit0("c", "crc" , "mark CRC bytes"),
1082 arg_lit0("p", "pcsc", "show trace buffer from PCSC card reader instead of PM3"),
1083 arg_str0("l", "load", "<filename>", "load trace from file"),
1084 arg_str0("s", "save", "<filename>", "save trace to file"),
1085 arg_lit0("u", "us", "display times in microseconds instead of clock cycles"),
1086 arg_str0(NULL, NULL, "<protocol>", "protocol to interpret. Possible values:\n"\
1087 "\traw - just show raw data without annotations (default)\n"\
1088 "\t14a - interpret data as ISO14443A communications\n"\
1089 "\tmf - interpret data as ISO14443A communications and decrypt Mifare Crypto1 stream\n"\
1090 "\t14b - interpret data as ISO14443B communications\n"\
1091 "\t15 - interpret data as ISO15693 communications\n"\
1092 "\ticlass - interpret data as iClass communications\n"\
1093 "\ttopaz - interpret data as Topaz communications\n"\
1094 "\t7816 - interpret data as 7816-4 APDU communications\n"\
1095 "\t14-4 - interpret data as ISO14443-4 communications"),
1096 arg_param_end
1097 };
0113dcf3 1098
d3bcdbda 1099 if (CLIParserParseString(Cmd, argtable, arg_getsize(argtable), true)){
1100 CLIParserFree();
1101 return 0;
0d2624a0 1102 }
0113dcf3 1103
d3bcdbda 1104 bool showWaitCycles = arg_get_lit(1);
1105 bool relative_times = arg_get_lit(2);
1106 bool markCRCBytes = arg_get_lit(3);
1107 bool PCSCtrace = arg_get_lit(4);
1108 bool loadFromFile = arg_get_str_len(5);
1109 bool saveToFile = arg_get_str_len(6);
1110 bool times_in_us = arg_get_lit(7);
1111
1112 uint32_t previous_EOT = 0;
1113 uint32_t *prev_EOT = NULL;
1114 if (relative_times) {
1115 prev_EOT = &previous_EOT;
0d2624a0 1116 }
d3bcdbda 1117
1118 char load_filename[FILE_PATH_SIZE] = {0};
1119 if (loadFromFile) {
1120 strncpy(load_filename, arg_get_str(5)->sval[0], FILE_PATH_SIZE);
53fb848a 1121 }
d3bcdbda 1122 char save_filename[FILE_PATH_SIZE] = {0};
1123 if (saveToFile) {
1124 strncpy(save_filename, arg_get_str(6)->sval[0], FILE_PATH_SIZE);
0d2624a0 1125 }
d3bcdbda 1126
1127 uint8_t protocol = -1;
1128 if (arg_get_str_len(8)) {
1129 if (strcmp(arg_get_str(8)->sval[0], "iclass") == 0) protocol = ICLASS;
1130 else if(strcmp(arg_get_str(8)->sval[0], "14a") == 0) protocol = ISO_14443A;
1131 else if(strcmp(arg_get_str(8)->sval[0], "mf") == 0) protocol = PROTO_MIFARE;
1132 else if(strcmp(arg_get_str(8)->sval[0], "14b") == 0) protocol = ISO_14443B;
1133 else if(strcmp(arg_get_str(8)->sval[0], "topaz") == 0) protocol = TOPAZ;
1134 else if(strcmp(arg_get_str(8)->sval[0], "7816") == 0) protocol = ISO_7816_4;
1135 else if(strcmp(arg_get_str(8)->sval[0], "14-4") == 0) protocol = ISO_14443_4;
1136 else if(strcmp(arg_get_str(8)->sval[0], "15") == 0) protocol = ISO_15693;
1137 else if(strcmp(arg_get_str(8)->sval[0], "raw") == 0) protocol = -1;//No crc, no annotations
1138 else {
1139 PrintAndLog("hf list: invalid argument \"%s\"\nTry 'hf list --help' for more information.", arg_get_str(8)->sval[0]);
1140 CLIParserFree();
1141 return 0;
1142 }
0d2624a0 1143 }
53fb848a 1144
d3bcdbda 1145 CLIParserFree();
0d2624a0 1146
1147
1148 uint8_t *trace;
1149 uint32_t tracepos = 0;
1150 uint32_t traceLen = 0;
d3bcdbda 1151
0d2624a0 1152 if (loadFromFile) {
53fb848a 1153 #define TRACE_CHUNK_SIZE (1<<16) // 64K to start with. Will be enough for BigBuf and some room for future extensions
0d2624a0 1154 FILE *tracefile = NULL;
1155 size_t bytes_read;
1156 trace = malloc(TRACE_CHUNK_SIZE);
1157 if (trace == NULL) {
1158 PrintAndLog("Cannot allocate memory for trace");
1159 return 2;
1160 }
d3bcdbda 1161 if ((tracefile = fopen(load_filename,"rb")) == NULL) {
1162 PrintAndLog("Could not open file %s", load_filename);
0d2624a0 1163 free(trace);
1164 return 0;
1165 }
1166 while (!feof(tracefile)) {
1167 bytes_read = fread(trace+traceLen, 1, TRACE_CHUNK_SIZE, tracefile);
1168 traceLen += bytes_read;
1169 if (!feof(tracefile)) {
1170 uint8_t *p = realloc(trace, traceLen + TRACE_CHUNK_SIZE);
1171 if (p == NULL) {
1172 PrintAndLog("Cannot allocate memory for trace");
1173 free(trace);
1174 fclose(tracefile);
1175 return 2;
1176 }
1177 trace = p;
1178 }
1179 }
1180 fclose(tracefile);
53fb848a 1181 } else if (PCSCtrace) {
1182 trace = pcsc_get_trace_addr();
1183 traceLen = pcsc_get_traceLen();
0d2624a0 1184 } else {
1185 trace = malloc(USB_CMD_DATA_SIZE);
1186 // Query for the size of the trace
1187 UsbCommand response;
d3bcdbda 1188 if (!(GetFromBigBuf(trace, USB_CMD_DATA_SIZE, 0, &response, 500, false))) {
1189 return 1;
1190 }
0d2624a0 1191 traceLen = response.arg[2];
1192 if (traceLen > USB_CMD_DATA_SIZE) {
1193 uint8_t *p = realloc(trace, traceLen);
1194 if (p == NULL) {
1195 PrintAndLog("Cannot allocate memory for trace");
1196 free(trace);
1197 return 2;
1198 }
1199 trace = p;
d3bcdbda 1200 if (!(GetFromBigBuf(trace, traceLen, 0, NULL, 500, false))) {
1201 return 1;
1202 }
0d2624a0 1203 }
1204 }
1205
1206 if (saveToFile) {
1207 FILE *tracefile = NULL;
d3bcdbda 1208 if ((tracefile = fopen(save_filename,"wb")) == NULL) {
1209 PrintAndLog("Could not create file %s", save_filename);
0d2624a0 1210 return 1;
1211 }
1212 fwrite(trace, 1, traceLen, tracefile);
d3bcdbda 1213 PrintAndLog("Recorded Activity (TraceLen = %d bytes) written to file %s", traceLen, save_filename);
0d2624a0 1214 fclose(tracefile);
1215 } else {
1216 PrintAndLog("Recorded Activity (TraceLen = %d bytes)", traceLen);
1217 PrintAndLog("");
d3bcdbda 1218 if (relative_times) {
1219 PrintAndLog("Gap = time between transfers. Duration = duration of data transfer. Src = Source of transfer");
1220 } else {
1221 PrintAndLog("Start = Start of Frame, End = End of Frame. Src = Source of transfer");
1222 }
1223 if (times_in_us) {
1224 PrintAndLog("All times are in microseconds");
1225 } else {
1226 PrintAndLog("All times are in carrier periods (1/13.56Mhz)");
1227 }
0d2624a0 1228 PrintAndLog("");
d3bcdbda 1229 if (relative_times) {
1230 PrintAndLog(" Gap | Duration | Src | Data (! denotes parity error, ' denotes short bytes) | CRC | Annotation |");
1231 } else {
1232 PrintAndLog(" Start | End | Src | Data (! denotes parity error, ' denotes short bytes) | CRC | Annotation |");
1233 }
0d2624a0 1234 PrintAndLog("------------|------------|-----|-----------------------------------------------------------------|-----|--------------------|");
1235
1236 ClearAuthData();
d3bcdbda 1237 while(tracepos < traceLen) {
1238 tracepos = printTraceLine(tracepos, traceLen, trace, protocol, showWaitCycles, markCRCBytes, prev_EOT, times_in_us);
0d2624a0 1239 }
1240 }
1241
1242 free(trace);
1243 return 0;
0113dcf3 1244}
0d2624a0 1245
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