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[proxmark3-svn] / client / cmdhf14a.c
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a553f267 1//-----------------------------------------------------------------------------
f89c7050 2// 2011, Merlok
534983d7 3// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>, Hagen Fritsch
a553f267 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
7fe9b0b7 12#include <stdio.h>
590f8ff9 13#include <stdlib.h>
7fe9b0b7 14#include <string.h>
f397b5cc 15#include <unistd.h>
20f9a2a1 16#include "util.h"
f38a1528 17#include "../common/iso14443crc.h"
7fe9b0b7 18#include "data.h"
902cb3c0 19#include "proxmark3.h"
7fe9b0b7 20#include "ui.h"
21#include "cmdparser.h"
22#include "cmdhf14a.h"
f38a1528 23#include "../include/common.h"
20f9a2a1 24#include "cmdmain.h"
f38a1528 25#include "../include/mifare.h"
7fe9b0b7 26
27static int CmdHelp(const char *Cmd);
5f6d6c90 28static void waitCmd(uint8_t iLen);
7fe9b0b7 29
30int CmdHF14AList(const char *Cmd)
31{
7bc95e2e 32 bool ShowWaitCycles = false;
33 char param = param_getchar(Cmd, 0);
34
35 if (param == 'h' || (param != 0 && param != 'f')) {
36 PrintAndLog("List data in trace buffer.");
37 PrintAndLog("Usage: hf 14a list [f]");
38 PrintAndLog("f - show frame delay times as well");
39 PrintAndLog("sample: hf 14a list f");
40 return 0;
41 }
42
f5ed4d12 43 ShowWaitCycles = (param == 'f');
7bc95e2e 44
d3499d36 45// for the time being. Need better Bigbuf handling.
46#define TRACE_SIZE 3000
47
48 uint8_t trace[TRACE_SIZE];
49 GetFromBigBuf(trace, TRACE_SIZE, 0);
7bc95e2e 50 WaitForResponse(CMD_ACK,NULL);
51
52 PrintAndLog("Recorded Activity");
53 PrintAndLog("");
54 PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer");
55 PrintAndLog("All times are in carrier periods (1/13.56Mhz)");
56 PrintAndLog("");
f5ed4d12 57 PrintAndLog(" Start | End | Src | Data (! denotes parity error) | CRC ");
58 PrintAndLog("-----------|-----------|-----|-----------------------------------------------------------------------");
7bc95e2e 59
a501c82b 60 uint16_t tracepos = 0;
61 uint16_t duration;
62 uint16_t data_len;
63 uint16_t parity_len;
64 bool isResponse;
7bc95e2e 65 uint32_t timestamp;
a501c82b 66 uint32_t first_timestamp;
67 uint32_t EndOfTransmissionTimestamp;
7bc95e2e 68
69 for (;;) {
a501c82b 70
f5ed4d12 71 if(tracepos >= TRACE_SIZE) break;
a501c82b 72
73 timestamp = *((uint32_t *)(trace + tracepos));
f5ed4d12 74
75 // Break and stick with current result if buffer was not completely full
76 if (timestamp == 0x44444444) break;
77
a501c82b 78 if(tracepos == 0) {
79 first_timestamp = timestamp;
e691fc45 80 }
f5ed4d12 81
a501c82b 82 tracepos += 4;
83 duration = *((uint16_t *)(trace + tracepos));
84 tracepos += 2;
85 data_len = *((uint16_t *)(trace + tracepos));
86 tracepos += 2;
87
f5ed4d12 88 isResponse = false;
a501c82b 89 if (data_len & 0x8000) {
90 data_len &= 0x7fff;
91 isResponse = true;
7bc95e2e 92 }
f5ed4d12 93
a501c82b 94 parity_len = (data_len-1)/8 + 1;
f5ed4d12 95
96 if (tracepos + data_len + parity_len >= TRACE_SIZE) break;
7bc95e2e 97
a501c82b 98 uint8_t *frame = trace + tracepos;
99 tracepos += data_len;
100 uint8_t *parityBytes = trace + tracepos;
101 tracepos += parity_len;
f5ed4d12 102
103 char line[16][110];
104 for (int j = 0; j < data_len; j++) {
a501c82b 105 int oddparity = 0x01;
106 int k;
7bc95e2e 107
a501c82b 108 for (k=0;k<8;k++) {
109 oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01);
7bc95e2e 110 }
a501c82b 111
112 uint8_t parityBits = parityBytes[j>>3];
113 if (isResponse && (oddparity != ((parityBits >> (7-(j&0x0007))) & 0x01))) {
f5ed4d12 114 sprintf(line[j/16]+((j%16)*4), "%02x! ", frame[j]);
a501c82b 115 } else {
f5ed4d12 116 sprintf(line[j/16]+((j%16)*4), "%02x ", frame[j]);
7bc95e2e 117 }
118 }
f5ed4d12 119
120 char crc[5] = {0x00};
a501c82b 121 if (data_len > 2) {
7bc95e2e 122 uint8_t b1, b2;
a501c82b 123 ComputeCrc14443(CRC_14443_A, frame, data_len-2, &b1, &b2);
124 if (b1 != frame[data_len-2] || b2 != frame[data_len-1]) {
f5ed4d12 125 sprintf(crc, (isResponse & (data_len < 6)) ? "" : "!crc");
126 }
d3499d36 127 }
7bc95e2e 128
a501c82b 129 EndOfTransmissionTimestamp = timestamp + duration;
f5ed4d12 130 int num_lines = (data_len - 1)/16 + 1;
131
132 for (int j = 0; j < num_lines; j++) {
133 if (j == 0) {
134 PrintAndLog(" %9d | %9d | %s | %-64s| %s",
135 (timestamp - first_timestamp),
136 (EndOfTransmissionTimestamp - first_timestamp),
137 (isResponse ? "Tag" : "Rdr"),
138 line[j],
139 (j == num_lines-1)?crc:""
140 );
141 } else {
142 PrintAndLog(" | | | %-64s| %s",
143 line[j],
144 (j == num_lines-1)?crc:"");
145 }
146 }
a501c82b 147
148 bool next_isResponse = *((uint16_t *)(trace + tracepos + 6)) & 0x8000;
d3499d36 149
a501c82b 150 if (ShowWaitCycles && !isResponse && next_isResponse) {
151 uint32_t next_timestamp = *((uint32_t *)(trace + tracepos));
152 if (next_timestamp != 0x44444444) {
f5ed4d12 153 PrintAndLog(" %9d | %9d | %s | fdt (Frame Delay Time): %d",
154 (EndOfTransmissionTimestamp - first_timestamp),
155 (next_timestamp - first_timestamp),
156 " ",
157 (next_timestamp - EndOfTransmissionTimestamp));
a501c82b 158 }
f5ed4d12 159 }
7bc95e2e 160 }
f89c7050 161 return 0;
7fe9b0b7 162}
163
534983d7 164void iso14a_set_timeout(uint32_t timeout) {
165 UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_SET_TIMEOUT, 0, timeout}};
166 SendCommand(&c);
167}
168
7fe9b0b7 169int CmdHF14AReader(const char *Cmd)
170{
f5ed4d12 171 UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT | ISO14A_NO_DISCONNECT, 0, 0}};
534983d7 172 SendCommand(&c);
902cb3c0 173
174 UsbCommand resp;
7bc95e2e 175 WaitForResponse(CMD_ACK,&resp);
902cb3c0 176
d3499d36 177 iso14a_card_select_t card;
178 memcpy(&card, (iso14a_card_select_t *)resp.d.asBytes, sizeof(iso14a_card_select_t));
534983d7 179
d3499d36 180 uint64_t select_status = resp.arg[0]; // 0: couldn't read, 1: OK, with ATS, 2: OK, no ATS
181
182 if(select_status == 0) {
534983d7 183 PrintAndLog("iso14443a card select failed");
3bc3598e 184 // disconnect
185 c.arg[0] = 0;
186 c.arg[1] = 0;
187 c.arg[2] = 0;
188 SendCommand(&c);
534983d7 189 return 0;
190 }
191
d3499d36 192 PrintAndLog("ATQA : %02x %02x", card.atqa[1], card.atqa[0]);
193 PrintAndLog(" UID : %s", sprint_hex(card.uid, card.uidlen));
194 PrintAndLog(" SAK : %02x [%d]", card.sak, resp.arg[0]);
713e7ffb 195
d3499d36 196 switch (card.sak) {
79a73ab2 197 case 0x00: PrintAndLog("TYPE : NXP MIFARE Ultralight | Ultralight C"); break;
d3499d36 198 case 0x01: PrintAndLog("TYPE : NXP TNP3xxx Activision Game Appliance"); break;
79a73ab2 199 case 0x04: PrintAndLog("TYPE : NXP MIFARE (various !DESFire !DESFire EV1)"); break;
e691fc45 200 case 0x08: PrintAndLog("TYPE : NXP MIFARE CLASSIC 1k | Plus 2k SL1"); break;
79a73ab2 201 case 0x09: PrintAndLog("TYPE : NXP MIFARE Mini 0.3k"); break;
e691fc45 202 case 0x10: PrintAndLog("TYPE : NXP MIFARE Plus 2k SL2"); break;
203 case 0x11: PrintAndLog("TYPE : NXP MIFARE Plus 4k SL2"); break;
204 case 0x18: PrintAndLog("TYPE : NXP MIFARE Classic 4k | Plus 4k SL1"); break;
205 case 0x20: PrintAndLog("TYPE : NXP MIFARE DESFire 4k | DESFire EV1 2k/4k/8k | Plus 2k/4k SL3 | JCOP 31/41"); break;
79a73ab2 206 case 0x24: PrintAndLog("TYPE : NXP MIFARE DESFire | DESFire EV1"); break;
207 case 0x28: PrintAndLog("TYPE : JCOP31 or JCOP41 v2.3.1"); break;
208 case 0x38: PrintAndLog("TYPE : Nokia 6212 or 6131 MIFARE CLASSIC 4K"); break;
209 case 0x88: PrintAndLog("TYPE : Infineon MIFARE CLASSIC 1K"); break;
210 case 0x98: PrintAndLog("TYPE : Gemplus MPCOS"); break;
9ca155ba
M		 211 default: ;
212 }
d3499d36 213
214
215 // try to request ATS even if tag claims not to support it
216 if (select_status == 2) {
217 uint8_t rats[] = { 0xE0, 0x80 }; // FSDI=8 (FSD=256), CID=0
218 c.arg[0] = ISO14A_RAW | ISO14A_APPEND_CRC | ISO14A_NO_DISCONNECT;
219 c.arg[1] = 2;
220 c.arg[2] = 0;
221 memcpy(c.d.asBytes, rats, 2);
222 SendCommand(&c);
223 WaitForResponse(CMD_ACK,&resp);
224
225 memcpy(&card.ats, resp.d.asBytes, resp.arg[0]);
226 card.ats_len = resp.arg[0]; // note: ats_len includes CRC Bytes
227 }
d3499d36 228
229 if(card.ats_len >= 3) { // a valid ATS consists of at least the length byte (TL) and 2 CRC bytes
561f7c11 230 bool ta1 = 0, tb1 = 0, tc1 = 0;
231 int pos;
232
d3499d36 233 if (select_status == 2) {
234 PrintAndLog("SAK incorrectly claims that card doesn't support RATS");
235 }
236 PrintAndLog(" ATS : %s", sprint_hex(card.ats, card.ats_len));
237 PrintAndLog(" - TL : length is %d bytes", card.ats[0]);
238 if (card.ats[0] != card.ats_len - 2) {
239 PrintAndLog("ATS may be corrupted. Length of ATS (%d bytes incl. 2 Bytes CRC) doesn't match TL", card.ats_len);
19d6d91f 240 }
d3499d36 241
242 if (card.ats[0] > 1) { // there is a format byte (T0)
243 ta1 = (card.ats[1] & 0x10) == 0x10;
244 tb1 = (card.ats[1] & 0x20) == 0x20;
245 tc1 = (card.ats[1] & 0x40) == 0x40;
246 int16_t fsci = card.ats[1] & 0x0f;
561f7c11 247 PrintAndLog(" - T0 : TA1 is%s present, TB1 is%s present, "
d3499d36 248 "TC1 is%s present, FSCI is %d (FSC = %ld)",
561f7c11 249 (ta1 ? "" : " NOT"), (tb1 ? "" : " NOT"), (tc1 ? "" : " NOT"),
d3499d36 250 fsci,
251 fsci < 5 ? (fsci - 2) * 8 :
252 fsci < 8 ? (fsci - 3) * 32 :
253 fsci == 8 ? 256 :
254 -1
255 );
561f7c11 256 }
257 pos = 2;
d3499d36 258 if (ta1) {
561f7c11 259 char dr[16], ds[16];
260 dr[0] = ds[0] = '\0';
d3499d36 261 if (card.ats[pos] & 0x10) strcat(ds, "2, ");
262 if (card.ats[pos] & 0x20) strcat(ds, "4, ");
263 if (card.ats[pos] & 0x40) strcat(ds, "8, ");
264 if (card.ats[pos] & 0x01) strcat(dr, "2, ");
265 if (card.ats[pos] & 0x02) strcat(dr, "4, ");
266 if (card.ats[pos] & 0x04) strcat(dr, "8, ");
561f7c11 267 if (strlen(ds) != 0) ds[strlen(ds) - 2] = '\0';
268 if (strlen(dr) != 0) dr[strlen(dr) - 2] = '\0';
269 PrintAndLog(" - TA1 : different divisors are%s supported, "
270 "DR: [%s], DS: [%s]",
d3499d36 271 (card.ats[pos] & 0x80 ? " NOT" : ""), dr, ds);
561f7c11 272 pos++;
273 }
d3499d36 274 if (tb1) {
275 uint32_t sfgi = card.ats[pos] & 0x0F;
276 uint32_t fwi = card.ats[pos] >> 4;
277 PrintAndLog(" - TB1 : SFGI = %d (SFGT = %s%ld/fc), FWI = %d (FWT = %ld/fc)",
278 (sfgi),
279 sfgi ? "" : "(not needed) ",
280 sfgi ? (1 << 12) << sfgi : 0,
281 fwi,
282 (1 << 12) << fwi
283 );
561f7c11 284 pos++;
285 }
d3499d36 286 if (tc1) {
561f7c11 287 PrintAndLog(" - TC1 : NAD is%s supported, CID is%s supported",
d3499d36 288 (card.ats[pos] & 0x01) ? "" : " NOT",
289 (card.ats[pos] & 0x02) ? "" : " NOT");
561f7c11 290 pos++;
291 }
d3499d36 292 if (card.ats[0] > pos) {
561f7c11 293 char *tip = "";
d3499d36 294 if (card.ats[0] - pos >= 7) {
295 if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x01\xBC\xD6", 7) == 0) {
561f7c11 296 tip = "-> MIFARE Plus X 2K or 4K";
d3499d36 297 } else if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x00\x35\xC7", 7) == 0) {
561f7c11 298 tip = "-> MIFARE Plus S 2K or 4K";
299 }
300 }
d3499d36 301 PrintAndLog(" - HB : %s%s", sprint_hex(card.ats + pos, card.ats[0] - pos), tip);
302 if (card.ats[pos] == 0xC1) {
561f7c11 303 PrintAndLog(" c1 -> Mifare or (multiple) virtual cards of various type");
304 PrintAndLog(" %02x -> Length is %d bytes",
d3499d36 305 card.ats[pos + 1], card.ats[pos + 1]);
306 switch (card.ats[pos + 2] & 0xf0) {
561f7c11 307 case 0x10:
308 PrintAndLog(" 1x -> MIFARE DESFire");
309 break;
310 case 0x20:
311 PrintAndLog(" 2x -> MIFARE Plus");
312 break;
313 }
d3499d36 314 switch (card.ats[pos + 2] & 0x0f) {
561f7c11 315 case 0x00:
316 PrintAndLog(" x0 -> <1 kByte");
317 break;
318 case 0x01:
319 PrintAndLog(" x0 -> 1 kByte");
320 break;
321 case 0x02:
322 PrintAndLog(" x0 -> 2 kByte");
323 break;
324 case 0x03:
325 PrintAndLog(" x0 -> 4 kByte");
326 break;
327 case 0x04:
328 PrintAndLog(" x0 -> 8 kByte");
329 break;
330 }
d3499d36 331 switch (card.ats[pos + 3] & 0xf0) {
561f7c11 332 case 0x00:
333 PrintAndLog(" 0x -> Engineering sample");
334 break;
335 case 0x20:
336 PrintAndLog(" 2x -> Released");
337 break;
338 }
d3499d36 339 switch (card.ats[pos + 3] & 0x0f) {
561f7c11 340 case 0x00:
341 PrintAndLog(" x0 -> Generation 1");
342 break;
343 case 0x01:
344 PrintAndLog(" x1 -> Generation 2");
345 break;
346 case 0x02:
347 PrintAndLog(" x2 -> Generation 3");
348 break;
349 }
d3499d36 350 switch (card.ats[pos + 4] & 0x0f) {
561f7c11 351 case 0x00:
352 PrintAndLog(" x0 -> Only VCSL supported");
353 break;
354 case 0x01:
355 PrintAndLog(" x1 -> VCS, VCSL, and SVC supported");
356 break;
357 case 0x0E:
358 PrintAndLog(" xE -> no VCS command supported");
359 break;
360 }
361 }
362 }
79a73ab2 363 } else {
d3499d36 364 PrintAndLog("proprietary non iso14443-4 card found, RATS not supported");
19d6d91f 365 }
534983d7 366
d52e4e88 367
368 // try to see if card responses to "chinese magic backdoor" commands.
369 c.cmd = CMD_MIFARE_CIDENT;
370 c.arg[0] = 0;
371 c.arg[1] = 0;
372 c.arg[2] = 0;
373 SendCommand(&c);
374 WaitForResponse(CMD_ACK,&resp);
375 uint8_t isOK = resp.arg[0] & 0xff;
376 PrintAndLog(" Answers to chinese magic backdoor commands: %s", (isOK ? "YES" : "NO") );
377
378 // disconnect
9c7c222c 379 c.cmd = CMD_READER_ISO_14443a;
d52e4e88 380 c.arg[0] = 0;
381 c.arg[1] = 0;
382 c.arg[2] = 0;
383 SendCommand(&c);
384
d3499d36 385 return select_status;
7fe9b0b7 386}
387
db22dfe6 388// Collect ISO14443 Type A UIDs
389int CmdHF14ACUIDs(const char *Cmd)
390{
391 // requested number of UIDs
392 int n = atoi(Cmd);
393 // collect at least 1 (e.g. if no parameter was given)
394 n = n > 0 ? n : 1;
395
396 PrintAndLog("Collecting %d UIDs", n);
397 PrintAndLog("Start: %u", time(NULL));
398 // repeat n times
399 for (int i = 0; i < n; i++) {
400 // execute anticollision procedure
401 UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT, 0, 0}};
402 SendCommand(&c);
902cb3c0 403
72b1090a 404 UsbCommand resp;
405 WaitForResponse(CMD_ACK,&resp);
902cb3c0 406
d3499d36 407 iso14a_card_select_t *card = (iso14a_card_select_t *) resp.d.asBytes;
db22dfe6 408
409 // check if command failed
902cb3c0 410 if (resp.arg[0] == 0) {
db22dfe6 411 PrintAndLog("Card select failed.");
412 } else {
d3499d36 413 char uid_string[20];
414 for (uint16_t i = 0; i < card->uidlen; i++) {
415 sprintf(&uid_string[2*i], "%02X", card->uid[i]);
db22dfe6 416 }
d3499d36 417 PrintAndLog("%s", uid_string);
db22dfe6 418 }
419 }
420 PrintAndLog("End: %u", time(NULL));
421
422 return 1;
423}
424
7fe9b0b7 425// ## simulate iso14443a tag
426// ## greg - added ability to specify tag UID
427int CmdHF14ASim(const char *Cmd)
81cd0474 428{
429 UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,{0,0,0}};
430
431 // Retrieve the tag type
432 uint8_t tagtype = param_get8ex(Cmd,0,0,10);
433
434 // When no argument was given, just print help message
435 if (tagtype == 0) {
436 PrintAndLog("");
437 PrintAndLog(" Emulating ISO/IEC 14443 type A tag with 4 or 7 byte UID");
438 PrintAndLog("");
439 PrintAndLog(" syntax: hf 14a sim <type> <uid>");
440 PrintAndLog(" types: 1 = MIFARE Classic");
441 PrintAndLog(" 2 = MIFARE Ultralight");
442 PrintAndLog(" 3 = MIFARE DESFIRE");
443 PrintAndLog(" 4 = ISO/IEC 14443-4");
95e63594 444 PrintAndLog(" 5 = MIFARE TNP3XXX");
81cd0474 445 PrintAndLog("");
446 return 1;
447 }
448
449 // Store the tag type
450 c.arg[0] = tagtype;
451
452 // Retrieve the full 4 or 7 byte long uid
453 uint64_t long_uid = param_get64ex(Cmd,1,0,16);
454
455 // Are we handling the (optional) second part uid?
456 if (long_uid > 0xffffffff) {
125a98a1 457 PrintAndLog("Emulating ISO/IEC 14443 type A tag with 7 byte UID (%014"llx")",long_uid);
81cd0474 458 // Store the second part
459 c.arg[2] = (long_uid & 0xffffffff);
460 long_uid >>= 32;
461 // Store the first part, ignore the first byte, it is replaced by cascade byte (0x88)
462 c.arg[1] = (long_uid & 0xffffff);
463 } else {
464 PrintAndLog("Emulating ISO/IEC 14443 type A tag with 4 byte UID (%08x)",long_uid);
465 // Only store the first part
466 c.arg[1] = long_uid & 0xffffffff;
467 }
468/*
469 // At lease save the mandatory first part of the UID
470 c.arg[0] = long_uid & 0xffffffff;
471
81cd0474 472 if (c.arg[1] == 0) {
473 PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]);
474 }
475
476 switch (c.arg[0]) {
477 case 1: {
478 PrintAndLog("Emulating ISO/IEC 14443-3 type A tag with 4 byte UID");
479 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)};
480 } break;
481 case 2: {
482 PrintAndLog("Emulating ISO/IEC 14443-4 type A tag with 7 byte UID");
483 } break;
484 default: {
485 PrintAndLog("Error: unkown tag type (%d)",c.arg[0]);
486 PrintAndLog("syntax: hf 14a sim <uid>",c.arg[0]);
487 PrintAndLog(" type1: 4 ",c.arg[0]);
488
489 return 1;
490 } break;
491 }
492*/
493/*
7fe9b0b7 494 unsigned int hi = 0, lo = 0;
495 int n = 0, i = 0;
496 while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
497 hi= (hi << 4) | (lo >> 28);
498 lo= (lo << 4) | (n & 0xf);
499 }
81cd0474 500*/
501// 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)};
502// PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]);
7fe9b0b7 503 SendCommand(&c);
504 return 0;
505}
506
5cd9ec01
M		 507int CmdHF14ASnoop(const char *Cmd) {
508 int param = 0;
509
510 if (param_getchar(Cmd, 0) == 'h') {
511 PrintAndLog("It get data from the field and saves it into command buffer.");
d3a22c7d 512 PrintAndLog("Buffer accessible from command hf list 14a.");
5cd9ec01
M		 513 PrintAndLog("Usage: hf 14a snoop [c][r]");
514 PrintAndLog("c - triggered by first data from card");
515 PrintAndLog("r - triggered by first 7-bit request from reader (REQ,WUP,...)");
516 PrintAndLog("sample: hf 14a snoop c r");
517 return 0;
518 }
519
520 for (int i = 0; i < 2; i++) {
521 char ctmp = param_getchar(Cmd, i);
522 if (ctmp == 'c' || ctmp == 'C') param |= 0x01;
523 if (ctmp == 'r' || ctmp == 'R') param |= 0x02;
524 }
525
526 UsbCommand c = {CMD_SNOOP_ISO_14443a, {param, 0, 0}};
7fe9b0b7 527 SendCommand(&c);
528 return 0;
529}
530
5f6d6c90 531int CmdHF14ACmdRaw(const char *cmd) {
532 UsbCommand c = {CMD_READER_ISO_14443a, {0, 0, 0}};
533 uint8_t reply=1;
534 uint8_t crc=0;
535 uint8_t power=0;
536 uint8_t active=0;
537 uint8_t active_select=0;
538 uint16_t numbits=0;
f38a1528 539 uint16_t timeout=0;
540 uint8_t bTimeout=0;
5f6d6c90 541 char buf[5]="";
542 int i=0;
f38a1528 543 uint8_t data[USB_CMD_DATA_SIZE];
5f6d6c90 544 unsigned int datalen=0, temp;
545
546 if (strlen(cmd)<2) {
f38a1528 547 PrintAndLog("Usage: hf 14a raw [-r] [-c] [-p] [-f] [-b] [-t] <number of bits> <0A 0B 0C ... hex>");
5f6d6c90 548 PrintAndLog(" -r do not read response");
549 PrintAndLog(" -c calculate and append CRC");
550 PrintAndLog(" -p leave the signal field ON after receive");
551 PrintAndLog(" -a active signal field ON without select");
552 PrintAndLog(" -s active signal field ON with select");
553 PrintAndLog(" -b number of bits to send. Useful for send partial byte");
f38a1528 554 PrintAndLog(" -t timeout");
5f6d6c90 555 return 0;
556 }
557
558 // strip
559 while (*cmd==' ' || *cmd=='\t') cmd++;
560
561 while (cmd[i]!='\0') {
562 if (cmd[i]==' ' || cmd[i]=='\t') { i++; continue; }
563 if (cmd[i]=='-') {
564 switch (cmd[i+1]) {
565 case 'r':
566 reply=0;
567 break;
568 case 'c':
569 crc=1;
570 break;
571 case 'p':
572 power=1;
573 break;
574 case 'a':
575 active=1;
576 break;
577 case 's':
578 active_select=1;
579 break;
580 case 'b':
581 sscanf(cmd+i+2,"%d",&temp);
582 numbits = temp & 0xFFFF;
583 i+=3;
584 while(cmd[i]!=' ' && cmd[i]!='\0') { i++; }
585 i-=2;
586 break;
f38a1528 587 case 't':
588 bTimeout=1;
589 sscanf(cmd+i+2,"%d",&temp);
590 timeout = temp & 0xFFFF;
591 i+=3;
592 while(cmd[i]!=' ' && cmd[i]!='\0') { i++; }
593 i+=2;
594 break;
5f6d6c90 595 default:
596 PrintAndLog("Invalid option");
597 return 0;
598 }
599 i+=2;
600 continue;
601 }
602 if ((cmd[i]>='0' && cmd[i]<='9') ||
603 (cmd[i]>='a' && cmd[i]<='f') ||
604 (cmd[i]>='A' && cmd[i]<='F') ) {
605 buf[strlen(buf)+1]=0;
606 buf[strlen(buf)]=cmd[i];
607 i++;
608
609 if (strlen(buf)>=2) {
610 sscanf(buf,"%x",&temp);
611 data[datalen]=(uint8_t)(temp & 0xff);
5f6d6c90 612 *buf=0;
f38a1528 613 if (++datalen>sizeof(data)){
614 if (crc)
615 PrintAndLog("Buffer is full, we can't add CRC to your data");
616 break;
617 }
5f6d6c90 618 }
619 continue;
620 }
621 PrintAndLog("Invalid char on input");
622 return 0;
623 }
f38a1528 624 if(crc && datalen>0 && datalen<sizeof(data)-2)
5f6d6c90 625 {
626 uint8_t first, second;
627 ComputeCrc14443(CRC_14443_A, data, datalen, &first, &second);
628 data[datalen++] = first;
629 data[datalen++] = second;
630 }
631
632 if(active || active_select)
633 {
634 c.arg[0] |= ISO14A_CONNECT;
635 if(active)
636 c.arg[0] |= ISO14A_NO_SELECT;
637 }
f38a1528 638 if(bTimeout){
639 #define MAX_TIMEOUT 624*105 // max timeout is 624 ms
640 c.arg[0] |= ISO14A_SET_TIMEOUT;
641 c.arg[2] = timeout * 105; // each bit is about 9.4 us
642 if(c.arg[2]>MAX_TIMEOUT) {
643 c.arg[2] = MAX_TIMEOUT;
644 PrintAndLog("Set timeout to 624 ms. The max we can wait for response");
645 }
646 }
5f6d6c90 647 if(power)
648 c.arg[0] |= ISO14A_NO_DISCONNECT;
649 if(datalen>0)
650 c.arg[0] |= ISO14A_RAW;
651
f38a1528 652 // Max buffer is USB_CMD_DATA_SIZE
653 c.arg[1] = (datalen & 0xFFFF) | (numbits << 16);
5f6d6c90 654 memcpy(c.d.asBytes,data,datalen);
655
656 SendCommand(&c);
657
658 if (reply) {
659 if(active_select)
660 waitCmd(1);
661 if(datalen>0)
662 waitCmd(0);
663 } // if reply
664 return 0;
665}
666
667static void waitCmd(uint8_t iSelect)
668{
669 uint8_t *recv;
670 UsbCommand resp;
671 char *hexout;
672
95e63594 673 if (WaitForResponseTimeout(CMD_ACK,&resp,10000)) {
5f6d6c90 674 recv = resp.d.asBytes;
675 uint8_t iLen = iSelect ? resp.arg[1] : resp.arg[0];
676 PrintAndLog("received %i octets",iLen);
677 if(!iLen)
678 return;
679 hexout = (char *)malloc(iLen * 3 + 1);
680 if (hexout != NULL) {
5f6d6c90 681 for (int i = 0; i < iLen; i++) { // data in hex
f66021cf 682 sprintf(&hexout[i * 3], "%02X ", recv[i]);
5f6d6c90 683 }
684 PrintAndLog("%s", hexout);
685 free(hexout);
686 } else {
687 PrintAndLog("malloc failed your client has low memory?");
688 }
689 } else {
690 PrintAndLog("timeout while waiting for reply.");
691 }
692}
693
7fe9b0b7 694static command_t CommandTable[] =
695{
5acd09bd 696 {"help", CmdHelp, 1, "This help"},
d3a22c7d 697 {"list", CmdHF14AList, 0, "[Deprecated] List ISO 14443a history"},
5acd09bd 698 {"reader", CmdHF14AReader, 0, "Act like an ISO14443 Type A reader"},
699 {"cuids", CmdHF14ACUIDs, 0, "<n> Collect n>0 ISO14443 Type A UIDs in one go"},
700 {"sim", CmdHF14ASim, 0, "<UID> -- Fake ISO 14443a tag"},
701 {"snoop", CmdHF14ASnoop, 0, "Eavesdrop ISO 14443 Type A"},
5f6d6c90 702 {"raw", CmdHF14ACmdRaw, 0, "Send raw hex data to tag"},
7fe9b0b7 703 {NULL, NULL, 0, NULL}
704};
705
902cb3c0 706int CmdHF14A(const char *Cmd) {
f397b5cc 707 // flush
902cb3c0 708 WaitForResponseTimeout(CMD_ACK,NULL,100);
f397b5cc
M		 709
710 // parse
7fe9b0b7 711 CmdsParse(CommandTable, Cmd);
712 return 0;
713}
714
715int CmdHelp(const char *Cmd)
716{
717 CmdsHelp(CommandTable);
718 return 0;
719}
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