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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 | ||
27 | static int CmdHelp(const char *Cmd); | |
28 | static void waitCmd(uint8_t iLen); | |
29 | ||
30 | int CmdHF14AList(const char *Cmd) | |
31 | { | |
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 | ||
43 | if (param == 'f') { | |
44 | ShowWaitCycles = true; | |
45 | } | |
46 | ||
47 | // for the time being. Need better Bigbuf handling. | |
48 | #define TRACE_SIZE 3000 | |
49 | ||
50 | uint8_t trace[TRACE_SIZE]; | |
51 | GetFromBigBuf(trace, TRACE_SIZE, 0); | |
52 | WaitForResponse(CMD_ACK, NULL); | |
53 | ||
54 | PrintAndLog("Recorded Activity"); | |
55 | PrintAndLog(""); | |
56 | PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer"); | |
57 | PrintAndLog("All times are in carrier periods (1/13.56Mhz)"); | |
58 | PrintAndLog(""); | |
59 | PrintAndLog(" Start | End | Src | Data (! denotes parity error) | CRC "); | |
60 | PrintAndLog("-----------|-----------|-----|-----------------------------------------------------------------------"); | |
61 | ||
62 | uint16_t tracepos = 0; | |
63 | uint16_t duration; | |
64 | uint16_t data_len; | |
65 | uint16_t parity_len; | |
66 | bool isResponse; | |
67 | uint32_t timestamp; | |
68 | uint32_t first_timestamp; | |
69 | uint32_t EndOfTransmissionTimestamp; | |
70 | ||
71 | for (;;) { | |
72 | ||
73 | if(tracepos >= TRACE_SIZE) { | |
74 | break; | |
75 | } | |
76 | ||
77 | timestamp = *((uint32_t *)(trace + tracepos)); | |
78 | if(tracepos == 0) { | |
79 | first_timestamp = timestamp; | |
80 | } | |
81 | ||
82 | // Break and stick with current result if buffer was not completely full | |
83 | if (timestamp == 0x44444444) break; | |
84 | ||
85 | tracepos += 4; | |
86 | duration = *((uint16_t *)(trace + tracepos)); | |
87 | tracepos += 2; | |
88 | data_len = *((uint16_t *)(trace + tracepos)); | |
89 | tracepos += 2; | |
90 | ||
91 | if (data_len & 0x8000) { | |
92 | data_len &= 0x7fff; | |
93 | isResponse = true; | |
94 | } else { | |
95 | isResponse = false; | |
96 | } | |
97 | ||
98 | parity_len = (data_len-1)/8 + 1; | |
99 | ||
100 | if (tracepos + data_len + parity_len >= TRACE_SIZE) { | |
101 | break; | |
102 | } | |
103 | ||
104 | uint8_t *frame = trace + tracepos; | |
105 | tracepos += data_len; | |
106 | uint8_t *parityBytes = trace + tracepos; | |
107 | tracepos += parity_len; | |
108 | ||
109 | char line[16][110]; | |
110 | for (int j = 0; j < data_len; j++) { | |
111 | int oddparity = 0x01; | |
112 | int k; | |
113 | ||
114 | for (k=0;k<8;k++) { | |
115 | oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01); | |
116 | } | |
117 | ||
118 | uint8_t parityBits = parityBytes[j>>3]; | |
119 | if (isResponse && (oddparity != ((parityBits >> (7-(j&0x0007))) & 0x01))) { | |
120 | sprintf(line[j/16]+((j%16)*4), "%02x! ", frame[j]); | |
121 | } else { | |
122 | sprintf(line[j/16]+((j%16)*4), "%02x ", frame[j]); | |
123 | } | |
124 | ||
125 | } | |
126 | ||
127 | char crc[5] = ""; | |
128 | if (data_len > 2) { | |
129 | uint8_t b1, b2; | |
130 | ComputeCrc14443(CRC_14443_A, frame, data_len-2, &b1, &b2); | |
131 | if (b1 != frame[data_len-2] || b2 != frame[data_len-1]) { | |
132 | sprintf(crc, (isResponse & (data_len < 6)) ? "" : "!crc"); | |
133 | } else { | |
134 | sprintf(crc, ""); | |
135 | } | |
136 | } | |
137 | ||
138 | EndOfTransmissionTimestamp = timestamp + duration; | |
139 | ||
140 | int num_lines = (data_len - 1)/16 + 1; | |
141 | for (int j = 0; j < num_lines; j++) { | |
142 | if (j == 0) { | |
143 | PrintAndLog(" %9d | %9d | %s | %-64s| %s", | |
144 | (timestamp - first_timestamp), | |
145 | (EndOfTransmissionTimestamp - first_timestamp), | |
146 | (isResponse ? "Tag" : "Rdr"), | |
147 | line[j], | |
148 | (j == num_lines-1)?crc:""); | |
149 | } else { | |
150 | PrintAndLog(" | | | %-64s| %s", | |
151 | line[j], | |
152 | (j == num_lines-1)?crc:""); | |
153 | } | |
154 | } | |
155 | ||
156 | bool next_isResponse = *((uint16_t *)(trace + tracepos + 6)) & 0x8000; | |
157 | ||
158 | if (ShowWaitCycles && !isResponse && next_isResponse) { | |
159 | uint32_t next_timestamp = *((uint32_t *)(trace + tracepos)); | |
160 | if (next_timestamp != 0x44444444) { | |
161 | PrintAndLog(" %9d | %9d | %s | fdt (Frame Delay Time): %d", | |
162 | (EndOfTransmissionTimestamp - first_timestamp), | |
163 | (next_timestamp - first_timestamp), | |
164 | " ", | |
165 | (next_timestamp - EndOfTransmissionTimestamp)); | |
166 | } | |
167 | } | |
168 | ||
169 | } | |
170 | ||
171 | return 0; | |
172 | } | |
173 | ||
174 | void iso14a_set_timeout(uint32_t timeout) { | |
175 | UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_SET_TIMEOUT, 0, timeout}}; | |
176 | SendCommand(&c); | |
177 | } | |
178 | ||
179 | int CmdHF14AReader(const char *Cmd) | |
180 | { | |
181 | UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT | ISO14A_NO_DISCONNECT, 0, 0}}; | |
182 | SendCommand(&c); | |
183 | ||
184 | UsbCommand resp; | |
185 | WaitForResponse(CMD_ACK,&resp); | |
186 | ||
187 | iso14a_card_select_t card; | |
188 | memcpy(&card, (iso14a_card_select_t *)resp.d.asBytes, sizeof(iso14a_card_select_t)); | |
189 | ||
190 | uint64_t select_status = resp.arg[0]; // 0: couldn't read, 1: OK, with ATS, 2: OK, no ATS | |
191 | ||
192 | if(select_status == 0) { | |
193 | PrintAndLog("iso14443a card select failed"); | |
194 | return 0; | |
195 | } | |
196 | ||
197 | PrintAndLog("ATQA : %02x %02x", card.atqa[1], card.atqa[0]); | |
198 | PrintAndLog(" UID : %s", sprint_hex(card.uid, card.uidlen)); | |
199 | PrintAndLog(" SAK : %02x [%d]", card.sak, resp.arg[0]); | |
200 | ||
201 | switch (card.sak) { | |
202 | case 0x00: PrintAndLog("TYPE : NXP MIFARE Ultralight | Ultralight C"); break; | |
203 | case 0x04: PrintAndLog("TYPE : NXP MIFARE (various !DESFire !DESFire EV1)"); break; | |
204 | case 0x08: PrintAndLog("TYPE : NXP MIFARE CLASSIC 1k | Plus 2k SL1"); break; | |
205 | case 0x09: PrintAndLog("TYPE : NXP MIFARE Mini 0.3k"); break; | |
206 | case 0x10: PrintAndLog("TYPE : NXP MIFARE Plus 2k SL2"); break; | |
207 | case 0x11: PrintAndLog("TYPE : NXP MIFARE Plus 4k SL2"); break; | |
208 | case 0x18: PrintAndLog("TYPE : NXP MIFARE Classic 4k | Plus 4k SL1"); break; | |
209 | case 0x20: PrintAndLog("TYPE : NXP MIFARE DESFire 4k | DESFire EV1 2k/4k/8k | Plus 2k/4k SL3 | JCOP 31/41"); break; | |
210 | case 0x24: PrintAndLog("TYPE : NXP MIFARE DESFire | DESFire EV1"); break; | |
211 | case 0x28: PrintAndLog("TYPE : JCOP31 or JCOP41 v2.3.1"); break; | |
212 | case 0x38: PrintAndLog("TYPE : Nokia 6212 or 6131 MIFARE CLASSIC 4K"); break; | |
213 | case 0x88: PrintAndLog("TYPE : Infineon MIFARE CLASSIC 1K"); break; | |
214 | case 0x98: PrintAndLog("TYPE : Gemplus MPCOS"); break; | |
215 | default: ; | |
216 | } | |
217 | ||
218 | ||
219 | // try to request ATS even if tag claims not to support it | |
220 | if (select_status == 2) { | |
221 | uint8_t rats[] = { 0xE0, 0x80 }; // FSDI=8 (FSD=256), CID=0 | |
222 | c.arg[0] = ISO14A_RAW | ISO14A_APPEND_CRC | ISO14A_NO_DISCONNECT; | |
223 | c.arg[1] = 2; | |
224 | c.arg[2] = 0; | |
225 | memcpy(c.d.asBytes, rats, 2); | |
226 | SendCommand(&c); | |
227 | WaitForResponse(CMD_ACK,&resp); | |
228 | ||
229 | memcpy(&card.ats, resp.d.asBytes, resp.arg[0]); | |
230 | card.ats_len = resp.arg[0]; // note: ats_len includes CRC Bytes | |
231 | } | |
232 | ||
233 | // disconnect | |
234 | c.arg[0] = 0; | |
235 | c.arg[1] = 0; | |
236 | c.arg[2] = 0; | |
237 | SendCommand(&c); | |
238 | ||
239 | ||
240 | if(card.ats_len >= 3) { // a valid ATS consists of at least the length byte (TL) and 2 CRC bytes | |
241 | bool ta1 = 0, tb1 = 0, tc1 = 0; | |
242 | int pos; | |
243 | ||
244 | if (select_status == 2) { | |
245 | PrintAndLog("SAK incorrectly claims that card doesn't support RATS"); | |
246 | } | |
247 | PrintAndLog(" ATS : %s", sprint_hex(card.ats, card.ats_len)); | |
248 | PrintAndLog(" - TL : length is %d bytes", card.ats[0]); | |
249 | if (card.ats[0] != card.ats_len - 2) { | |
250 | PrintAndLog("ATS may be corrupted. Length of ATS (%d bytes incl. 2 Bytes CRC) doesn't match TL", card.ats_len); | |
251 | } | |
252 | ||
253 | if (card.ats[0] > 1) { // there is a format byte (T0) | |
254 | ta1 = (card.ats[1] & 0x10) == 0x10; | |
255 | tb1 = (card.ats[1] & 0x20) == 0x20; | |
256 | tc1 = (card.ats[1] & 0x40) == 0x40; | |
257 | int16_t fsci = card.ats[1] & 0x0f; | |
258 | PrintAndLog(" - T0 : TA1 is%s present, TB1 is%s present, " | |
259 | "TC1 is%s present, FSCI is %d (FSC = %ld)", | |
260 | (ta1 ? "" : " NOT"), (tb1 ? "" : " NOT"), (tc1 ? "" : " NOT"), | |
261 | fsci, | |
262 | fsci < 5 ? (fsci - 2) * 8 : | |
263 | fsci < 8 ? (fsci - 3) * 32 : | |
264 | fsci == 8 ? 256 : | |
265 | -1 | |
266 | ); | |
267 | } | |
268 | pos = 2; | |
269 | if (ta1) { | |
270 | char dr[16], ds[16]; | |
271 | dr[0] = ds[0] = '\0'; | |
272 | if (card.ats[pos] & 0x10) strcat(ds, "2, "); | |
273 | if (card.ats[pos] & 0x20) strcat(ds, "4, "); | |
274 | if (card.ats[pos] & 0x40) strcat(ds, "8, "); | |
275 | if (card.ats[pos] & 0x01) strcat(dr, "2, "); | |
276 | if (card.ats[pos] & 0x02) strcat(dr, "4, "); | |
277 | if (card.ats[pos] & 0x04) strcat(dr, "8, "); | |
278 | if (strlen(ds) != 0) ds[strlen(ds) - 2] = '\0'; | |
279 | if (strlen(dr) != 0) dr[strlen(dr) - 2] = '\0'; | |
280 | PrintAndLog(" - TA1 : different divisors are%s supported, " | |
281 | "DR: [%s], DS: [%s]", | |
282 | (card.ats[pos] & 0x80 ? " NOT" : ""), dr, ds); | |
283 | pos++; | |
284 | } | |
285 | if (tb1) { | |
286 | uint32_t sfgi = card.ats[pos] & 0x0F; | |
287 | uint32_t fwi = card.ats[pos] >> 4; | |
288 | PrintAndLog(" - TB1 : SFGI = %d (SFGT = %s%ld/fc), FWI = %d (FWT = %ld/fc)", | |
289 | (sfgi), | |
290 | sfgi ? "" : "(not needed) ", | |
291 | sfgi ? (1 << 12) << sfgi : 0, | |
292 | fwi, | |
293 | (1 << 12) << fwi | |
294 | ); | |
295 | pos++; | |
296 | } | |
297 | if (tc1) { | |
298 | PrintAndLog(" - TC1 : NAD is%s supported, CID is%s supported", | |
299 | (card.ats[pos] & 0x01) ? "" : " NOT", | |
300 | (card.ats[pos] & 0x02) ? "" : " NOT"); | |
301 | pos++; | |
302 | } | |
303 | if (card.ats[0] > pos) { | |
304 | char *tip = ""; | |
305 | if (card.ats[0] - pos >= 7) { | |
306 | if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x01\xBC\xD6", 7) == 0) { | |
307 | tip = "-> MIFARE Plus X 2K or 4K"; | |
308 | } else if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x00\x35\xC7", 7) == 0) { | |
309 | tip = "-> MIFARE Plus S 2K or 4K"; | |
310 | } | |
311 | } | |
312 | PrintAndLog(" - HB : %s%s", sprint_hex(card.ats + pos, card.ats[0] - pos), tip); | |
313 | if (card.ats[pos] == 0xC1) { | |
314 | PrintAndLog(" c1 -> Mifare or (multiple) virtual cards of various type"); | |
315 | PrintAndLog(" %02x -> Length is %d bytes", | |
316 | card.ats[pos + 1], card.ats[pos + 1]); | |
317 | switch (card.ats[pos + 2] & 0xf0) { | |
318 | case 0x10: | |
319 | PrintAndLog(" 1x -> MIFARE DESFire"); | |
320 | break; | |
321 | case 0x20: | |
322 | PrintAndLog(" 2x -> MIFARE Plus"); | |
323 | break; | |
324 | } | |
325 | switch (card.ats[pos + 2] & 0x0f) { | |
326 | case 0x00: | |
327 | PrintAndLog(" x0 -> <1 kByte"); | |
328 | break; | |
329 | case 0x01: | |
330 | PrintAndLog(" x0 -> 1 kByte"); | |
331 | break; | |
332 | case 0x02: | |
333 | PrintAndLog(" x0 -> 2 kByte"); | |
334 | break; | |
335 | case 0x03: | |
336 | PrintAndLog(" x0 -> 4 kByte"); | |
337 | break; | |
338 | case 0x04: | |
339 | PrintAndLog(" x0 -> 8 kByte"); | |
340 | break; | |
341 | } | |
342 | switch (card.ats[pos + 3] & 0xf0) { | |
343 | case 0x00: | |
344 | PrintAndLog(" 0x -> Engineering sample"); | |
345 | break; | |
346 | case 0x20: | |
347 | PrintAndLog(" 2x -> Released"); | |
348 | break; | |
349 | } | |
350 | switch (card.ats[pos + 3] & 0x0f) { | |
351 | case 0x00: | |
352 | PrintAndLog(" x0 -> Generation 1"); | |
353 | break; | |
354 | case 0x01: | |
355 | PrintAndLog(" x1 -> Generation 2"); | |
356 | break; | |
357 | case 0x02: | |
358 | PrintAndLog(" x2 -> Generation 3"); | |
359 | break; | |
360 | } | |
361 | switch (card.ats[pos + 4] & 0x0f) { | |
362 | case 0x00: | |
363 | PrintAndLog(" x0 -> Only VCSL supported"); | |
364 | break; | |
365 | case 0x01: | |
366 | PrintAndLog(" x1 -> VCS, VCSL, and SVC supported"); | |
367 | break; | |
368 | case 0x0E: | |
369 | PrintAndLog(" xE -> no VCS command supported"); | |
370 | break; | |
371 | } | |
372 | } | |
373 | } | |
374 | } else { | |
375 | PrintAndLog("proprietary non iso14443-4 card found, RATS not supported"); | |
376 | } | |
377 | ||
378 | return select_status; | |
379 | } | |
380 | ||
381 | // Collect ISO14443 Type A UIDs | |
382 | int CmdHF14ACUIDs(const char *Cmd) | |
383 | { | |
384 | // requested number of UIDs | |
385 | int n = atoi(Cmd); | |
386 | // collect at least 1 (e.g. if no parameter was given) | |
387 | n = n > 0 ? n : 1; | |
388 | ||
389 | PrintAndLog("Collecting %d UIDs", n); | |
390 | PrintAndLog("Start: %u", time(NULL)); | |
391 | // repeat n times | |
392 | for (int i = 0; i < n; i++) { | |
393 | // execute anticollision procedure | |
394 | UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT, 0, 0}}; | |
395 | SendCommand(&c); | |
396 | ||
397 | UsbCommand resp; | |
398 | WaitForResponse(CMD_ACK,&resp); | |
399 | ||
400 | iso14a_card_select_t *card = (iso14a_card_select_t *) resp.d.asBytes; | |
401 | ||
402 | // check if command failed | |
403 | if (resp.arg[0] == 0) { | |
404 | PrintAndLog("Card select failed."); | |
405 | } else { | |
406 | char uid_string[20]; | |
407 | for (uint16_t i = 0; i < card->uidlen; i++) { | |
408 | sprintf(&uid_string[2*i], "%02X", card->uid[i]); | |
409 | } | |
410 | PrintAndLog("%s", uid_string); | |
411 | } | |
412 | } | |
413 | PrintAndLog("End: %u", time(NULL)); | |
414 | ||
415 | return 1; | |
416 | } | |
417 | ||
418 | // ## simulate iso14443a tag | |
419 | // ## greg - added ability to specify tag UID | |
420 | int CmdHF14ASim(const char *Cmd) | |
421 | { | |
422 | UsbCommand c = {CMD_SIMULATE_TAG_ISO_14443a,{0,0,0}}; | |
423 | ||
424 | // Retrieve the tag type | |
425 | uint8_t tagtype = param_get8ex(Cmd,0,0,10); | |
426 | ||
427 | // When no argument was given, just print help message | |
428 | if (tagtype == 0) { | |
429 | PrintAndLog(""); | |
430 | PrintAndLog(" Emulating ISO/IEC 14443 type A tag with 4 or 7 byte UID"); | |
431 | PrintAndLog(""); | |
432 | PrintAndLog(" syntax: hf 14a sim <type> <uid>"); | |
433 | PrintAndLog(" types: 1 = MIFARE Classic"); | |
434 | PrintAndLog(" 2 = MIFARE Ultralight"); | |
435 | PrintAndLog(" 3 = MIFARE DESFIRE"); | |
436 | PrintAndLog(" 4 = ISO/IEC 14443-4"); | |
437 | PrintAndLog(""); | |
438 | return 1; | |
439 | } | |
440 | ||
441 | // Store the tag type | |
442 | c.arg[0] = tagtype; | |
443 | ||
444 | // Retrieve the full 4 or 7 byte long uid | |
445 | uint64_t long_uid = param_get64ex(Cmd,1,0,16); | |
446 | ||
447 | // Are we handling the (optional) second part uid? | |
448 | if (long_uid > 0xffffffff) { | |
449 | PrintAndLog("Emulating ISO/IEC 14443 type A tag with 7 byte UID (%014"llx")",long_uid); | |
450 | // Store the second part | |
451 | c.arg[2] = (long_uid & 0xffffffff); | |
452 | long_uid >>= 32; | |
453 | // Store the first part, ignore the first byte, it is replaced by cascade byte (0x88) | |
454 | c.arg[1] = (long_uid & 0xffffff); | |
455 | } else { | |
456 | PrintAndLog("Emulating ISO/IEC 14443 type A tag with 4 byte UID (%08x)",long_uid); | |
457 | // Only store the first part | |
458 | c.arg[1] = long_uid & 0xffffffff; | |
459 | } | |
460 | /* | |
461 | // At lease save the mandatory first part of the UID | |
462 | c.arg[0] = long_uid & 0xffffffff; | |
463 | ||
464 | ||
465 | // At lease save the mandatory first part of the UID | |
466 | c.arg[0] = long_uid & 0xffffffff; | |
467 | ||
468 | if (c.arg[1] == 0) { | |
469 | PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]); | |
470 | } | |
471 | ||
472 | switch (c.arg[0]) { | |
473 | case 1: { | |
474 | PrintAndLog("Emulating ISO/IEC 14443-3 type A tag with 4 byte UID"); | |
475 | 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)}; | |
476 | } break; | |
477 | case 2: { | |
478 | PrintAndLog("Emulating ISO/IEC 14443-4 type A tag with 7 byte UID"); | |
479 | } break; | |
480 | default: { | |
481 | PrintAndLog("Error: unkown tag type (%d)",c.arg[0]); | |
482 | PrintAndLog("syntax: hf 14a sim <uid>",c.arg[0]); | |
483 | PrintAndLog(" type1: 4 ",c.arg[0]); | |
484 | ||
485 | return 1; | |
486 | } break; | |
487 | } | |
488 | */ | |
489 | /* | |
490 | unsigned int hi = 0, lo = 0; | |
491 | int n = 0, i = 0; | |
492 | while (sscanf(&Cmd[i++], "%1x", &n ) == 1) { | |
493 | hi= (hi << 4) | (lo >> 28); | |
494 | lo= (lo << 4) | (n & 0xf); | |
495 | } | |
496 | */ | |
497 | // 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)}; | |
498 | // PrintAndLog("Emulating ISO/IEC 14443 type A tag with UID %01d %08x %08x",c.arg[0],c.arg[1],c.arg[2]); | |
499 | SendCommand(&c); | |
500 | return 0; | |
501 | } | |
502 | ||
503 | int CmdHF14ASnoop(const char *Cmd) { | |
504 | int param = 0; | |
505 | ||
506 | if (param_getchar(Cmd, 0) == 'h') { | |
507 | PrintAndLog("It get data from the field and saves it into command buffer."); | |
508 | PrintAndLog("Buffer accessible from command hf 14a list."); | |
509 | PrintAndLog("Usage: hf 14a snoop [c][r]"); | |
510 | PrintAndLog("c - triggered by first data from card"); | |
511 | PrintAndLog("r - triggered by first 7-bit request from reader (REQ,WUP,...)"); | |
512 | PrintAndLog("sample: hf 14a snoop c r"); | |
513 | return 0; | |
514 | } | |
515 | ||
516 | for (int i = 0; i < 2; i++) { | |
517 | char ctmp = param_getchar(Cmd, i); | |
518 | if (ctmp == 'c' || ctmp == 'C') param |= 0x01; | |
519 | if (ctmp == 'r' || ctmp == 'R') param |= 0x02; | |
520 | } | |
521 | ||
522 | UsbCommand c = {CMD_SNOOP_ISO_14443a, {param, 0, 0}}; | |
523 | SendCommand(&c); | |
524 | return 0; | |
525 | } | |
526 | ||
527 | int CmdHF14ACmdRaw(const char *cmd) { | |
528 | UsbCommand c = {CMD_READER_ISO_14443a, {0, 0, 0}}; | |
529 | uint8_t reply=1; | |
530 | uint8_t crc=0; | |
531 | uint8_t power=0; | |
532 | uint8_t active=0; | |
533 | uint8_t active_select=0; | |
534 | uint16_t numbits=0; | |
535 | char buf[5]=""; | |
536 | int i=0; | |
537 | uint8_t data[100]; | |
538 | unsigned int datalen=0, temp; | |
539 | ||
540 | if (strlen(cmd)<2) { | |
541 | PrintAndLog("Usage: hf 14a raw [-r] [-c] [-p] [-f] [-b] <number of bits> <0A 0B 0C ... hex>"); | |
542 | PrintAndLog(" -r do not read response"); | |
543 | PrintAndLog(" -c calculate and append CRC"); | |
544 | PrintAndLog(" -p leave the signal field ON after receive"); | |
545 | PrintAndLog(" -a active signal field ON without select"); | |
546 | PrintAndLog(" -s active signal field ON with select"); | |
547 | PrintAndLog(" -b number of bits to send. Useful for send partial byte"); | |
548 | return 0; | |
549 | } | |
550 | ||
551 | // strip | |
552 | while (*cmd==' ' || *cmd=='\t') cmd++; | |
553 | ||
554 | while (cmd[i]!='\0') { | |
555 | if (cmd[i]==' ' || cmd[i]=='\t') { i++; continue; } | |
556 | if (cmd[i]=='-') { | |
557 | switch (cmd[i+1]) { | |
558 | case 'r': | |
559 | reply=0; | |
560 | break; | |
561 | case 'c': | |
562 | crc=1; | |
563 | break; | |
564 | case 'p': | |
565 | power=1; | |
566 | break; | |
567 | case 'a': | |
568 | active=1; | |
569 | break; | |
570 | case 's': | |
571 | active_select=1; | |
572 | break; | |
573 | case 'b': | |
574 | sscanf(cmd+i+2,"%d",&temp); | |
575 | numbits = temp & 0xFFFF; | |
576 | i+=3; | |
577 | while(cmd[i]!=' ' && cmd[i]!='\0') { i++; } | |
578 | i-=2; | |
579 | break; | |
580 | default: | |
581 | PrintAndLog("Invalid option"); | |
582 | return 0; | |
583 | } | |
584 | i+=2; | |
585 | continue; | |
586 | } | |
587 | if ((cmd[i]>='0' && cmd[i]<='9') || | |
588 | (cmd[i]>='a' && cmd[i]<='f') || | |
589 | (cmd[i]>='A' && cmd[i]<='F') ) { | |
590 | buf[strlen(buf)+1]=0; | |
591 | buf[strlen(buf)]=cmd[i]; | |
592 | i++; | |
593 | ||
594 | if (strlen(buf)>=2) { | |
595 | sscanf(buf,"%x",&temp); | |
596 | data[datalen]=(uint8_t)(temp & 0xff); | |
597 | datalen++; | |
598 | *buf=0; | |
599 | } | |
600 | continue; | |
601 | } | |
602 | PrintAndLog("Invalid char on input"); | |
603 | return 0; | |
604 | } | |
605 | if(crc && datalen>0) | |
606 | { | |
607 | uint8_t first, second; | |
608 | ComputeCrc14443(CRC_14443_A, data, datalen, &first, &second); | |
609 | data[datalen++] = first; | |
610 | data[datalen++] = second; | |
611 | } | |
612 | ||
613 | if(active || active_select) | |
614 | { | |
615 | c.arg[0] |= ISO14A_CONNECT; | |
616 | if(active) | |
617 | c.arg[0] |= ISO14A_NO_SELECT; | |
618 | } | |
619 | if(power) | |
620 | c.arg[0] |= ISO14A_NO_DISCONNECT; | |
621 | if(datalen>0) | |
622 | c.arg[0] |= ISO14A_RAW; | |
623 | ||
624 | c.arg[1] = datalen; | |
625 | c.arg[2] = numbits; | |
626 | memcpy(c.d.asBytes,data,datalen); | |
627 | ||
628 | SendCommand(&c); | |
629 | ||
630 | if (reply) { | |
631 | if(active_select) | |
632 | waitCmd(1); | |
633 | if(datalen>0) | |
634 | waitCmd(0); | |
635 | } // if reply | |
636 | return 0; | |
637 | } | |
638 | ||
639 | static void waitCmd(uint8_t iSelect) | |
640 | { | |
641 | uint8_t *recv; | |
642 | UsbCommand resp; | |
643 | char *hexout; | |
644 | ||
645 | if (WaitForResponseTimeout(CMD_ACK,&resp,1000)) { | |
646 | recv = resp.d.asBytes; | |
647 | uint8_t iLen = iSelect ? resp.arg[1] : resp.arg[0]; | |
648 | PrintAndLog("received %i octets",iLen); | |
649 | if(!iLen) | |
650 | return; | |
651 | hexout = (char *)malloc(iLen * 3 + 1); | |
652 | if (hexout != NULL) { | |
653 | for (int i = 0; i < iLen; i++) { // data in hex | |
654 | sprintf(&hexout[i * 3], "%02X ", recv[i]); | |
655 | } | |
656 | PrintAndLog("%s", hexout); | |
657 | free(hexout); | |
658 | } else { | |
659 | PrintAndLog("malloc failed your client has low memory?"); | |
660 | } | |
661 | } else { | |
662 | PrintAndLog("timeout while waiting for reply."); | |
663 | } | |
664 | } | |
665 | ||
666 | static command_t CommandTable[] = | |
667 | { | |
668 | {"help", CmdHelp, 1, "This help"}, | |
669 | {"list", CmdHF14AList, 0, "List ISO 14443a history"}, | |
670 | {"reader", CmdHF14AReader, 0, "Act like an ISO14443 Type A reader"}, | |
671 | {"cuids", CmdHF14ACUIDs, 0, "<n> Collect n>0 ISO14443 Type A UIDs in one go"}, | |
672 | {"sim", CmdHF14ASim, 0, "<UID> -- Fake ISO 14443a tag"}, | |
673 | {"snoop", CmdHF14ASnoop, 0, "Eavesdrop ISO 14443 Type A"}, | |
674 | {"raw", CmdHF14ACmdRaw, 0, "Send raw hex data to tag"}, | |
675 | {NULL, NULL, 0, NULL} | |
676 | }; | |
677 | ||
678 | int CmdHF14A(const char *Cmd) { | |
679 | // flush | |
680 | WaitForResponseTimeout(CMD_ACK,NULL,100); | |
681 | ||
682 | // parse | |
683 | CmdsParse(CommandTable, Cmd); | |
684 | return 0; | |
685 | } | |
686 | ||
687 | int CmdHelp(const char *Cmd) | |
688 | { | |
689 | CmdsHelp(CommandTable); | |
690 | return 0; | |
691 | } |