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1 //-----------------------------------------------------------------------------
2 // 2011, Merlok
3 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>, Hagen Fritsch
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 //-----------------------------------------------------------------------------
9 // High frequency ISO14443A commands
10 //-----------------------------------------------------------------------------
11
12 #include <stdio.h>
13 #include <stdlib.h>
14 #include <string.h>
15 #include <unistd.h>
16 #include "util.h"
17 #include "iso14443crc.h"
18 #include "data.h"
19 #include "proxmark3.h"
20 #include "ui.h"
21 #include "cmdparser.h"
22 #include "cmdhf14a.h"
23 #include "common.h"
24 #include "cmdmain.h"
25 #include "mifare.h"
26 #include "cmdhfmfu.h"
27
28 static int CmdHelp(const char *Cmd);
29 static void waitCmd(uint8_t iLen);
30
31 // structure and database for uid -> tagtype lookups
32 typedef struct {
33 uint8_t uid;
34 char* desc;
35 } manufactureName;
36
37 const manufactureName manufactureMapping[] = {
38 // ID, "Vendor Country"
39 { 0x01, "Motorola UK" },
40 { 0x02, "ST Microelectronics SA France" },
41 { 0x03, "Hitachi, Ltd Japan" },
42 { 0x04, "NXP Semiconductors Germany" },
43 { 0x05, "Infineon Technologies AG Germany" },
44 { 0x06, "Cylink USA" },
45 { 0x07, "Texas Instrument France" },
46 { 0x08, "Fujitsu Limited Japan" },
47 { 0x09, "Matsushita Electronics Corporation, Semiconductor Company Japan" },
48 { 0x0A, "NEC Japan" },
49 { 0x0B, "Oki Electric Industry Co. Ltd Japan" },
50 { 0x0C, "Toshiba Corp. Japan" },
51 { 0x0D, "Mitsubishi Electric Corp. Japan" },
52 { 0x0E, "Samsung Electronics Co. Ltd Korea" },
53 { 0x0F, "Hynix / Hyundai, Korea" },
54 { 0x10, "LG-Semiconductors Co. Ltd Korea" },
55 { 0x11, "Emosyn-EM Microelectronics USA" },
56 { 0x12, "INSIDE Technology France" },
57 { 0x13, "ORGA Kartensysteme GmbH Germany" },
58 { 0x14, "SHARP Corporation Japan" },
59 { 0x15, "ATMEL France" },
60 { 0x16, "EM Microelectronic-Marin SA Switzerland" },
61 { 0x17, "KSW Microtec GmbH Germany" },
62 { 0x18, "ZMD AG Germany" },
63 { 0x19, "XICOR, Inc. USA" },
64 { 0x1A, "Sony Corporation Japan Identifier Company Country" },
65 { 0x1B, "Malaysia Microelectronic Solutions Sdn. Bhd Malaysia" },
66 { 0x1C, "Emosyn USA" },
67 { 0x1D, "Shanghai Fudan Microelectronics Co. Ltd. P.R. China" },
68 { 0x1E, "Magellan Technology Pty Limited Australia" },
69 { 0x1F, "Melexis NV BO Switzerland" },
70 { 0x20, "Renesas Technology Corp. Japan" },
71 { 0x21, "TAGSYS France" },
72 { 0x22, "Transcore USA" },
73 { 0x23, "Shanghai belling corp., ltd. China" },
74 { 0x24, "Masktech Germany Gmbh Germany" },
75 { 0x25, "Innovision Research and Technology Plc UK" },
76 { 0x26, "Hitachi ULSI Systems Co., Ltd. Japan" },
77 { 0x27, "Cypak AB Sweden" },
78 { 0x28, "Ricoh Japan" },
79 { 0x29, "ASK France" },
80 { 0x2A, "Unicore Microsystems, LLC Russian Federation" },
81 { 0x2B, "Dallas Semiconductor/Maxim USA" },
82 { 0x2C, "Impinj, Inc. USA" },
83 { 0x2D, "RightPlug Alliance USA" },
84 { 0x2E, "Broadcom Corporation USA" },
85 { 0x2F, "MStar Semiconductor, Inc Taiwan, ROC" },
86 { 0x30, "BeeDar Technology Inc. USA" },
87 { 0x31, "RFIDsec Denmark" },
88 { 0x32, "Schweizer Electronic AG Germany" },
89 { 0x33, "AMIC Technology Corp Taiwan" },
90 { 0x34, "Mikron JSC Russia" },
91 { 0x35, "Fraunhofer Institute for Photonic Microsystems Germany" },
92 { 0x36, "IDS Microchip AG Switzerland" },
93 { 0x37, "Kovio USA" },
94 { 0x38, "HMT Microelectronic Ltd Switzerland Identifier Company Country" },
95 { 0x39, "Silicon Craft Technology Thailand" },
96 { 0x3A, "Advanced Film Device Inc. Japan" },
97 { 0x3B, "Nitecrest Ltd UK" },
98 { 0x3C, "Verayo Inc. USA" },
99 { 0x3D, "HID Global USA" },
100 { 0x3E, "Productivity Engineering Gmbh Germany" },
101 { 0x3F, "Austriamicrosystems AG (reserved) Austria" },
102 { 0x40, "Gemalto SA France" },
103 { 0x41, "Renesas Electronics Corporation Japan" },
104 { 0x42, "3Alogics Inc Korea" },
105 { 0x43, "Top TroniQ Asia Limited Hong Kong" },
106 { 0x44, "Gentag Inc (USA) USA" },
107 { 0x00, "no tag-info available" } // must be the last entry
108 };
109
110
111 // get a product description based on the UID
112 // uid[8] tag uid
113 // returns description of the best match
114 char* getTagInfo(uint8_t uid) {
115
116 int i;
117 int len = sizeof(manufactureMapping) / sizeof(manufactureName);
118
119 for ( i = 0; i < len; ++i )
120 if ( uid == manufactureMapping[i].uid)
121 return manufactureMapping[i].desc;
122
123 //No match, return default
124 return manufactureMapping[len-1].desc;
125 }
126
127 int CmdHF14AList(const char *Cmd)
128 {
129 PrintAndLog("Deprecated command, use 'hf list 14a' instead");
130 return 0;
131 }
132
133 int CmdHF14AReader(const char *Cmd)
134 {
135 UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT | ISO14A_NO_DISCONNECT, 0, 0}};
136 SendCommand(&c);
137
138 UsbCommand resp;
139 WaitForResponse(CMD_ACK,&resp);
140
141 iso14a_card_select_t card;
142 memcpy(&card, (iso14a_card_select_t *)resp.d.asBytes, sizeof(iso14a_card_select_t));
143
144 uint64_t select_status = resp.arg[0]; // 0: couldn't read, 1: OK, with ATS, 2: OK, no ATS
145
146 if(select_status == 0) {
147 if (Cmd[0] != 's') PrintAndLog("iso14443a card select failed");
148 // disconnect
149 c.arg[0] = 0;
150 c.arg[1] = 0;
151 c.arg[2] = 0;
152 SendCommand(&c);
153 return 0;
154 }
155
156 if(select_status == 3) {
157 PrintAndLog("Card doesn't support standard iso14443-3 anticollision");
158 PrintAndLog("ATQA : %02x %02x", card.atqa[1], card.atqa[0]);
159 // disconnect
160 c.arg[0] = 0;
161 c.arg[1] = 0;
162 c.arg[2] = 0;
163 SendCommand(&c);
164 return 0;
165 }
166
167 PrintAndLog(" UID : %s", sprint_hex(card.uid, card.uidlen));
168 PrintAndLog("ATQA : %02x %02x", card.atqa[1], card.atqa[0]);
169 PrintAndLog(" SAK : %02x [%d]", card.sak, resp.arg[0]);
170
171 switch (card.sak) {
172 case 0x00:
173
174 //***************************************test****************
175 // disconnect
176 c.arg[0] = 0;
177 c.arg[1] = 0;
178 c.arg[2] = 0;
179 SendCommand(&c);
180
181 uint32_t tagT = GetHF14AMfU_Type();
182 ul_print_type(tagT, 0);
183
184 //reconnect for further tests
185 c.arg[0] = ISO14A_CONNECT | ISO14A_NO_DISCONNECT;
186 c.arg[1] = 0;
187 c.arg[2] = 0;
188
189 SendCommand(&c);
190
191 UsbCommand resp;
192 WaitForResponse(CMD_ACK,&resp);
193
194 memcpy(&card, (iso14a_card_select_t *)resp.d.asBytes, sizeof(iso14a_card_select_t));
195
196 select_status = resp.arg[0]; // 0: couldn't read, 1: OK, with ATS, 2: OK, no ATS
197
198 if(select_status == 0) {
199 //PrintAndLog("iso14443a card select failed");
200 // disconnect
201 c.arg[0] = 0;
202 c.arg[1] = 0;
203 c.arg[2] = 0;
204 SendCommand(&c);
205 return 0;
206 }
207
208 /* orig
209 // check if the tag answers to GETVERSION (0x60)
210 c.arg[0] = ISO14A_RAW | ISO14A_APPEND_CRC | ISO14A_NO_DISCONNECT;
211 c.arg[1] = 1;
212 c.arg[2] = 0;
213 c.d.asBytes[0] = 0x60;
214 SendCommand(&c);
215 WaitForResponse(CMD_ACK,&resp);
216
217 uint8_t version[10] = {0};
218 memcpy(version, resp.d.asBytes, resp.arg[0] < sizeof(version) ? resp.arg[0] : sizeof(version));
219 uint8_t len = resp.arg[0] & 0xff;
220 switch ( len ){
221 // todo, identify "Magic UL-C tags". // they usually have a static nonce response to 0x1A command.
222 // UL-EV1, size, check version[6] == 0x0b (smaller) 0x0b * 4 == 48
223 case 0x0A:PrintAndLog("TYPE : NXP MIFARE Ultralight EV1 %d bytes", (version[6] == 0xB) ? 48 : 128);break;
224 case 0x01:PrintAndLog("TYPE : NXP MIFARE Ultralight C");break;
225 case 0x00:PrintAndLog("TYPE : NXP MIFARE Ultralight");break;
226 }
227 */
228 break;
229 case 0x01: PrintAndLog("TYPE : NXP TNP3xxx Activision Game Appliance"); break;
230 case 0x04: PrintAndLog("TYPE : NXP MIFARE (various !DESFire !DESFire EV1)"); break;
231 case 0x08: PrintAndLog("TYPE : NXP MIFARE CLASSIC 1k | Plus 2k SL1"); break;
232 case 0x09: PrintAndLog("TYPE : NXP MIFARE Mini 0.3k"); break;
233 case 0x10: PrintAndLog("TYPE : NXP MIFARE Plus 2k SL2"); break;
234 case 0x11: PrintAndLog("TYPE : NXP MIFARE Plus 4k SL2"); break;
235 case 0x18: PrintAndLog("TYPE : NXP MIFARE Classic 4k | Plus 4k SL1"); break;
236 case 0x20: PrintAndLog("TYPE : NXP MIFARE DESFire 4k | DESFire EV1 2k/4k/8k | Plus 2k/4k SL3 | JCOP 31/41"); break;
237 case 0x24: PrintAndLog("TYPE : NXP MIFARE DESFire | DESFire EV1"); break;
238 case 0x28: PrintAndLog("TYPE : JCOP31 or JCOP41 v2.3.1"); break;
239 case 0x38: PrintAndLog("TYPE : Nokia 6212 or 6131 MIFARE CLASSIC 4K"); break;
240 case 0x88: PrintAndLog("TYPE : Infineon MIFARE CLASSIC 1K"); break;
241 case 0x98: PrintAndLog("TYPE : Gemplus MPCOS"); break;
242 default: ;
243 }
244
245 // Double & triple sized UID, can be mapped to a manufacturer.
246 // HACK: does this apply for Ultralight cards?
247 if ( card.uidlen > 4 ) {
248 PrintAndLog("MANUFACTURER : %s", getTagInfo(card.uid[0]));
249 }
250
251 // try to request ATS even if tag claims not to support it
252 if (select_status == 2) {
253 uint8_t rats[] = { 0xE0, 0x80 }; // FSDI=8 (FSD=256), CID=0
254 c.arg[0] = ISO14A_RAW | ISO14A_APPEND_CRC | ISO14A_NO_DISCONNECT;
255 c.arg[1] = 2;
256 c.arg[2] = 0;
257 memcpy(c.d.asBytes, rats, 2);
258 SendCommand(&c);
259 WaitForResponse(CMD_ACK,&resp);
260
261 memcpy(card.ats, resp.d.asBytes, resp.arg[0]);
262 card.ats_len = resp.arg[0]; // note: ats_len includes CRC Bytes
263 }
264
265 if(card.ats_len >= 3) { // a valid ATS consists of at least the length byte (TL) and 2 CRC bytes
266 bool ta1 = 0, tb1 = 0, tc1 = 0;
267 int pos;
268
269 if (select_status == 2) {
270 PrintAndLog("SAK incorrectly claims that card doesn't support RATS");
271 }
272 PrintAndLog(" ATS : %s", sprint_hex(card.ats, card.ats_len));
273 PrintAndLog(" - TL : length is %d bytes", card.ats[0]);
274 if (card.ats[0] != card.ats_len - 2) {
275 PrintAndLog("ATS may be corrupted. Length of ATS (%d bytes incl. 2 Bytes CRC) doesn't match TL", card.ats_len);
276 }
277
278 if (card.ats[0] > 1) { // there is a format byte (T0)
279 ta1 = (card.ats[1] & 0x10) == 0x10;
280 tb1 = (card.ats[1] & 0x20) == 0x20;
281 tc1 = (card.ats[1] & 0x40) == 0x40;
282 int16_t fsci = card.ats[1] & 0x0f;
283 PrintAndLog(" - T0 : TA1 is%s present, TB1 is%s present, "
284 "TC1 is%s present, FSCI is %d (FSC = %ld)",
285 (ta1 ? "" : " NOT"), (tb1 ? "" : " NOT"), (tc1 ? "" : " NOT"),
286 fsci,
287 fsci < 5 ? (fsci - 2) * 8 :
288 fsci < 8 ? (fsci - 3) * 32 :
289 fsci == 8 ? 256 :
290 -1
291 );
292 }
293 pos = 2;
294 if (ta1) {
295 char dr[16], ds[16];
296 dr[0] = ds[0] = '\0';
297 if (card.ats[pos] & 0x10) strcat(ds, "2, ");
298 if (card.ats[pos] & 0x20) strcat(ds, "4, ");
299 if (card.ats[pos] & 0x40) strcat(ds, "8, ");
300 if (card.ats[pos] & 0x01) strcat(dr, "2, ");
301 if (card.ats[pos] & 0x02) strcat(dr, "4, ");
302 if (card.ats[pos] & 0x04) strcat(dr, "8, ");
303 if (strlen(ds) != 0) ds[strlen(ds) - 2] = '\0';
304 if (strlen(dr) != 0) dr[strlen(dr) - 2] = '\0';
305 PrintAndLog(" - TA1 : different divisors are%s supported, "
306 "DR: [%s], DS: [%s]",
307 (card.ats[pos] & 0x80 ? " NOT" : ""), dr, ds);
308 pos++;
309 }
310 if (tb1) {
311 uint32_t sfgi = card.ats[pos] & 0x0F;
312 uint32_t fwi = card.ats[pos] >> 4;
313 PrintAndLog(" - TB1 : SFGI = %d (SFGT = %s%ld/fc), FWI = %d (FWT = %ld/fc)",
314 (sfgi),
315 sfgi ? "" : "(not needed) ",
316 sfgi ? (1 << 12) << sfgi : 0,
317 fwi,
318 (1 << 12) << fwi
319 );
320 pos++;
321 }
322 if (tc1) {
323 PrintAndLog(" - TC1 : NAD is%s supported, CID is%s supported",
324 (card.ats[pos] & 0x01) ? "" : " NOT",
325 (card.ats[pos] & 0x02) ? "" : " NOT");
326 pos++;
327 }
328 if (card.ats[0] > pos) {
329 char *tip = "";
330 if (card.ats[0] - pos >= 7) {
331 if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x01\xBC\xD6", 7) == 0) {
332 tip = "-> MIFARE Plus X 2K or 4K";
333 } else if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x00\x35\xC7", 7) == 0) {
334 tip = "-> MIFARE Plus S 2K or 4K";
335 }
336 }
337 PrintAndLog(" - HB : %s%s", sprint_hex(card.ats + pos, card.ats[0] - pos), tip);
338 if (card.ats[pos] == 0xC1) {
339 PrintAndLog(" c1 -> Mifare or (multiple) virtual cards of various type");
340 PrintAndLog(" %02x -> Length is %d bytes",
341 card.ats[pos + 1], card.ats[pos + 1]);
342 switch (card.ats[pos + 2] & 0xf0) {
343 case 0x10:
344 PrintAndLog(" 1x -> MIFARE DESFire");
345 break;
346 case 0x20:
347 PrintAndLog(" 2x -> MIFARE Plus");
348 break;
349 }
350 switch (card.ats[pos + 2] & 0x0f) {
351 case 0x00:
352 PrintAndLog(" x0 -> <1 kByte");
353 break;
354 case 0x01:
355 PrintAndLog(" x0 -> 1 kByte");
356 break;
357 case 0x02:
358 PrintAndLog(" x0 -> 2 kByte");
359 break;
360 case 0x03:
361 PrintAndLog(" x0 -> 4 kByte");
362 break;
363 case 0x04:
364 PrintAndLog(" x0 -> 8 kByte");
365 break;
366 }
367 switch (card.ats[pos + 3] & 0xf0) {
368 case 0x00:
369 PrintAndLog(" 0x -> Engineering sample");
370 break;
371 case 0x20:
372 PrintAndLog(" 2x -> Released");
373 break;
374 }
375 switch (card.ats[pos + 3] & 0x0f) {
376 case 0x00:
377 PrintAndLog(" x0 -> Generation 1");
378 break;
379 case 0x01:
380 PrintAndLog(" x1 -> Generation 2");
381 break;
382 case 0x02:
383 PrintAndLog(" x2 -> Generation 3");
384 break;
385 }
386 switch (card.ats[pos + 4] & 0x0f) {
387 case 0x00:
388 PrintAndLog(" x0 -> Only VCSL supported");
389 break;
390 case 0x01:
391 PrintAndLog(" x1 -> VCS, VCSL, and SVC supported");
392 break;
393 case 0x0E:
394 PrintAndLog(" xE -> no VCS command supported");
395 break;
396 }
397 }
398 }
399 } else {
400 PrintAndLog("proprietary non iso14443-4 card found, RATS not supported");
401 }
402
403
404 // try to see if card responses to "chinese magic backdoor" commands.
405 c.cmd = CMD_MIFARE_CIDENT;
406 c.arg[0] = 0;
407 c.arg[1] = 0;
408 c.arg[2] = 0;
409 SendCommand(&c);
410 WaitForResponse(CMD_ACK,&resp);
411 uint8_t isOK = resp.arg[0] & 0xff;
412 PrintAndLog("Answers to chinese magic backdoor commands: %s", (isOK ? "YES" : "NO") );
413
414 // disconnect
415 c.cmd = CMD_READER_ISO_14443a;
416 c.arg[0] = 0;
417 c.arg[1] = 0;
418 c.arg[2] = 0;
419 SendCommand(&c);
420
421 return select_status;
422 }
423
424 // Collect ISO14443 Type A UIDs
425 int CmdHF14ACUIDs(const char *Cmd)
426 {
427 // requested number of UIDs
428 int n = atoi(Cmd);
429 // collect at least 1 (e.g. if no parameter was given)
430 n = n > 0 ? n : 1;
431
432 PrintAndLog("Collecting %d UIDs", n);
433 PrintAndLog("Start: %u", time(NULL));
434 // repeat n times
435 for (int i = 0; i < n; i++) {
436 // execute anticollision procedure
437 UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT, 0, 0}};
438 SendCommand(&c);
439
440 UsbCommand resp;
441 WaitForResponse(CMD_ACK,&resp);
442
443 iso14a_card_select_t *card = (iso14a_card_select_t *) resp.d.asBytes;
444
445 // check if command failed
446 if (resp.arg[0] == 0) {
447 PrintAndLog("Card select failed.");
448 } else {
449 char uid_string[20];
450 for (uint16_t i = 0; i < card->uidlen; i++) {
451 sprintf(&uid_string[2*i], "%02X", card->uid[i]);
452 }
453 PrintAndLog("%s", uid_string);
454 }
455 }
456 PrintAndLog("End: %u", time(NULL));
457
458 return 1;
459 }
460
461 // ## simulate iso14443a tag
462 // ## greg - added ability to specify tag UID
463 int CmdHF14ASim(const char *Cmd)
464 {
465 UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,{0,0,0}};
466
467 // Retrieve the tag type
468 uint8_t tagtype = param_get8ex(Cmd,0,0,10);
469
470 // When no argument was given, just print help message
471 if (tagtype == 0) {
472 PrintAndLog("");
473 PrintAndLog(" Emulating ISO/IEC 14443 type A tag with 4 or 7 byte UID");
474 PrintAndLog("");
475 PrintAndLog(" syntax: hf 14a sim <type> <uid>");
476 PrintAndLog(" types: 1 = MIFARE Classic");
477 PrintAndLog(" 2 = MIFARE Ultralight");
478 PrintAndLog(" 3 = MIFARE Desfire");
479 PrintAndLog(" 4 = ISO/IEC 14443-4");
480 PrintAndLog(" 5 = MIFARE Tnp3xxx");
481 PrintAndLog("");
482 return 1;
483 }
484
485 // Store the tag type
486 c.arg[0] = tagtype;
487
488 // Retrieve the full 4 or 7 byte long uid
489 uint64_t long_uid = param_get64ex(Cmd,1,0,16);
490
491 // Are we handling the (optional) second part uid?
492 if (long_uid > 0xffffffff) {
493 PrintAndLog("Emulating ISO/IEC 14443 type A tag with 7 byte UID (%014"llx")",long_uid);
494 // Store the second part
495 c.arg[2] = (long_uid & 0xffffffff);
496 long_uid >>= 32;
497 // Store the first part, ignore the first byte, it is replaced by cascade byte (0x88)
498 c.arg[1] = (long_uid & 0xffffff);
499 } else {
500 PrintAndLog("Emulating ISO/IEC 14443 type A tag with 4 byte UID (%08x)",long_uid);
501 // Only store the first part
502 c.arg[1] = long_uid & 0xffffffff;
503 }
504 /*
505 // At lease save the mandatory first part of the UID
506 c.arg[0] = long_uid & 0xffffffff;
507
508 if (c.arg[1] == 0) {
509 PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]);
510 }
511
512 switch (c.arg[0]) {
513 case 1: {
514 PrintAndLog("Emulating ISO/IEC 14443-3 type A tag with 4 byte UID");
515 UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,param_get32ex(Cmd,0,0,10),param_get32ex(Cmd,1,0,16),param_get32ex(Cmd,2,0,16)};
516 } break;
517 case 2: {
518 PrintAndLog("Emulating ISO/IEC 14443-4 type A tag with 7 byte UID");
519 } break;
520 default: {
521 PrintAndLog("Error: unkown tag type (%d)",c.arg[0]);
522 PrintAndLog("syntax: hf 14a sim <uid>",c.arg[0]);
523 PrintAndLog(" type1: 4 ",c.arg[0]);
524
525 return 1;
526 } break;
527 }
528 */
529 /*
530 unsigned int hi = 0, lo = 0;
531 int n = 0, i = 0;
532 while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
533 hi= (hi << 4) | (lo >> 28);
534 lo= (lo << 4) | (n & 0xf);
535 }
536 */
537 // UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,param_get32ex(Cmd,0,0,10),param_get32ex(Cmd,1,0,16),param_get32ex(Cmd,2,0,16)};
538 // PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]);
539 SendCommand(&c);
540 return 0;
541 }
542
543 int CmdHF14ASnoop(const char *Cmd) {
544 int param = 0;
545
546 uint8_t ctmp = param_getchar(Cmd, 0) ;
547 if (ctmp == 'h' || ctmp == 'H') {
548 PrintAndLog("It get data from the field and saves it into command buffer.");
549 PrintAndLog("Buffer accessible from command hf list 14a.");
550 PrintAndLog("Usage: hf 14a snoop [c][r]");
551 PrintAndLog("c - triggered by first data from card");
552 PrintAndLog("r - triggered by first 7-bit request from reader (REQ,WUP,...)");
553 PrintAndLog("sample: hf 14a snoop c r");
554 return 0;
555 }
556
557 for (int i = 0; i < 2; i++) {
558 ctmp = param_getchar(Cmd, i);
559 if (ctmp == 'c' || ctmp == 'C') param |= 0x01;
560 if (ctmp == 'r' || ctmp == 'R') param |= 0x02;
561 }
562
563 UsbCommand c = {CMD_SNOOP_ISO_14443a, {param, 0, 0}};
564 SendCommand(&c);
565 return 0;
566 }
567
568 int CmdHF14ACmdRaw(const char *cmd) {
569 UsbCommand c = {CMD_READER_ISO_14443a, {0, 0, 0}};
570 uint8_t reply=1;
571 uint8_t crc=0;
572 uint8_t power=0;
573 uint8_t active=0;
574 uint8_t active_select=0;
575 uint16_t numbits=0;
576 uint32_t timeout=0;
577 uint8_t bTimeout=0;
578 char buf[5]="";
579 int i=0;
580 uint8_t data[USB_CMD_DATA_SIZE];
581 uint16_t datalen=0;
582 uint32_t temp;
583
584 if (strlen(cmd)<2) {
585 PrintAndLog("Usage: hf 14a raw [-r] [-c] [-p] [-f] [-b] [-t] <number of bits> <0A 0B 0C ... hex>");
586 PrintAndLog(" -r do not read response");
587 PrintAndLog(" -c calculate and append CRC");
588 PrintAndLog(" -p leave the signal field ON after receive");
589 PrintAndLog(" -a active signal field ON without select");
590 PrintAndLog(" -s active signal field ON with select");
591 PrintAndLog(" -b number of bits to send. Useful for send partial byte");
592 PrintAndLog(" -t timeout in ms");
593 return 0;
594 }
595
596 // strip
597 while (*cmd==' ' || *cmd=='\t') cmd++;
598
599 while (cmd[i]!='\0') {
600 if (cmd[i]==' ' || cmd[i]=='\t') { i++; continue; }
601 if (cmd[i]=='-') {
602 switch (cmd[i+1]) {
603 case 'r':
604 reply=0;
605 break;
606 case 'c':
607 crc=1;
608 break;
609 case 'p':
610 power=1;
611 break;
612 case 'a':
613 active=1;
614 break;
615 case 's':
616 active_select=1;
617 break;
618 case 'b':
619 sscanf(cmd+i+2,"%d",&temp);
620 numbits = temp & 0xFFFF;
621 i+=3;
622 while(cmd[i]!=' ' && cmd[i]!='\0') { i++; }
623 i-=2;
624 break;
625 case 't':
626 bTimeout=1;
627 sscanf(cmd+i+2,"%d",&temp);
628 timeout = temp;
629 i+=3;
630 while(cmd[i]!=' ' && cmd[i]!='\0') { i++; }
631 i-=2;
632 break;
633 default:
634 PrintAndLog("Invalid option");
635 return 0;
636 }
637 i+=2;
638 continue;
639 }
640 if ((cmd[i]>='0' && cmd[i]<='9') ||
641 (cmd[i]>='a' && cmd[i]<='f') ||
642 (cmd[i]>='A' && cmd[i]<='F') ) {
643 buf[strlen(buf)+1]=0;
644 buf[strlen(buf)]=cmd[i];
645 i++;
646
647 if (strlen(buf)>=2) {
648 sscanf(buf,"%x",&temp);
649 data[datalen]=(uint8_t)(temp & 0xff);
650 *buf=0;
651 if (++datalen>sizeof(data)){
652 if (crc)
653 PrintAndLog("Buffer is full, we can't add CRC to your data");
654 break;
655 }
656 }
657 continue;
658 }
659 PrintAndLog("Invalid char on input");
660 return 0;
661 }
662 if(crc && datalen>0 && datalen<sizeof(data)-2)
663 {
664 uint8_t first, second;
665 ComputeCrc14443(CRC_14443_A, data, datalen, &first, &second);
666 data[datalen++] = first;
667 data[datalen++] = second;
668 }
669
670 if(active || active_select)
671 {
672 c.arg[0] |= ISO14A_CONNECT;
673 if(active)
674 c.arg[0] |= ISO14A_NO_SELECT;
675 }
676
677 if(bTimeout){
678 #define MAX_TIMEOUT 40542464 // (2^32-1) * (8*16) / 13560000Hz * 1000ms/s =
679 c.arg[0] |= ISO14A_SET_TIMEOUT;
680 if(timeout > MAX_TIMEOUT) {
681 timeout = MAX_TIMEOUT;
682 PrintAndLog("Set timeout to 40542 seconds (11.26 hours). The max we can wait for response");
683 }
684 c.arg[2] = 13560000 / 1000 / (8*16) * timeout; // timeout in ETUs (time to transfer 1 bit, approx. 9.4 us)
685 }
686 if(power)
687 c.arg[0] |= ISO14A_NO_DISCONNECT;
688 if(datalen>0)
689 c.arg[0] |= ISO14A_RAW;
690
691 // Max buffer is USB_CMD_DATA_SIZE
692 c.arg[1] = (datalen & 0xFFFF) | (numbits << 16);
693 memcpy(c.d.asBytes,data,datalen);
694
695 SendCommand(&c);
696
697 if (reply) {
698 if(active_select)
699 waitCmd(1);
700 if(datalen>0)
701 waitCmd(0);
702 } // if reply
703 return 0;
704 }
705
706 static void waitCmd(uint8_t iSelect)
707 {
708 uint8_t *recv;
709 UsbCommand resp;
710 char *hexout;
711
712 if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
713 recv = resp.d.asBytes;
714 uint8_t iLen = iSelect ? resp.arg[1] : resp.arg[0];
715 PrintAndLog("received %i octets",iLen);
716 if(!iLen)
717 return;
718 hexout = (char *)malloc(iLen * 3 + 1);
719 if (hexout != NULL) {
720 for (int i = 0; i < iLen; i++) { // data in hex
721 sprintf(&hexout[i * 3], "%02X ", recv[i]);
722 }
723 PrintAndLog("%s", hexout);
724 free(hexout);
725 } else {
726 PrintAndLog("malloc failed your client has low memory?");
727 }
728 } else {
729 PrintAndLog("timeout while waiting for reply.");
730 }
731 }
732
733 static command_t CommandTable[] =
734 {
735 {"help", CmdHelp, 1, "This help"},
736 {"list", CmdHF14AList, 0, "[Deprecated] List ISO 14443a history"},
737 {"reader", CmdHF14AReader, 0, "Act like an ISO14443 Type A reader"},
738 {"cuids", CmdHF14ACUIDs, 0, "<n> Collect n>0 ISO14443 Type A UIDs in one go"},
739 {"sim", CmdHF14ASim, 0, "<UID> -- Simulate ISO 14443a tag"},
740 {"snoop", CmdHF14ASnoop, 0, "Eavesdrop ISO 14443 Type A"},
741 {"raw", CmdHF14ACmdRaw, 0, "Send raw hex data to tag"},
742 {NULL, NULL, 0, NULL}
743 };
744
745 int CmdHF14A(const char *Cmd) {
746 // flush
747 WaitForResponseTimeout(CMD_ACK,NULL,100);
748
749 // parse
750 CmdsParse(CommandTable, Cmd);
751 return 0;
752 }
753
754 int CmdHelp(const char *Cmd)
755 {
756 CmdsHelp(CommandTable);
757 return 0;
758 }
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