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a553f267 | 1 | //----------------------------------------------------------------------------- |
2 | // Copyright (C) 2010 iZsh <izsh at fail0verflow.com> | |
3 | // | |
4 | // This code is licensed to you under the terms of the GNU GPL, version 2 or, | |
5 | // at your option, any later version. See the LICENSE.txt file for the text of | |
6 | // the license. | |
7 | //----------------------------------------------------------------------------- | |
8 | // High frequency Legic commands | |
9 | //----------------------------------------------------------------------------- | |
7fe9b0b7 | 10 | #include "cmdhflegic.h" |
3e134b4c | 11 | |
7fe9b0b7 | 12 | static int CmdHelp(const char *Cmd); |
13 | ||
ffa306de | 14 | #define MAX_LENGTH 1024 |
15 | ||
3b920280 | 16 | int usage_legic_calccrc8(void){ |
3e134b4c | 17 | PrintAndLog("Calculates the legic crc8/crc16 on the input hexbytes."); |
3b920280 | 18 | PrintAndLog("There must be an even number of hexsymbols as input."); |
514ddaa2 | 19 | PrintAndLog("Usage: hf legic crc8 [h] b <hexbytes> u <uidcrc> c <crc type>"); |
20 | PrintAndLog("Options:"); | |
ffa306de | 21 | PrintAndLog(" h : this help"); |
3e134b4c | 22 | PrintAndLog(" b <hexbytes> : hex bytes"); |
23 | PrintAndLog(" u <uidcrc> : MCC hexbyte"); | |
514ddaa2 | 24 | PrintAndLog(" c <crc type> : 8|16 bit crc size"); |
3b920280 | 25 | PrintAndLog(""); |
514ddaa2 | 26 | PrintAndLog("Samples:"); |
3e134b4c | 27 | PrintAndLog(" hf legic crc8 b deadbeef1122"); |
514ddaa2 | 28 | PrintAndLog(" hf legic crc8 b deadbeef1122 u 9A c 16"); |
3b920280 | 29 | return 0; |
30 | } | |
e579e768 | 31 | int usage_legic_load(void){ |
32 | PrintAndLog("It loads datasamples from the file `filename` to device memory"); | |
ffa306de | 33 | PrintAndLog("Usage: hf legic load [h] <file name>"); |
34 | PrintAndLog("Options:"); | |
35 | PrintAndLog(" h : this help"); | |
36 | PrintAndLog(" <filename> : Name of file to load"); | |
514ddaa2 | 37 | PrintAndLog(""); |
38 | PrintAndLog("Samples:"); | |
39 | PrintAndLog(" hf legic load filename"); | |
e579e768 | 40 | return 0; |
41 | } | |
00271f77 | 42 | int usage_legic_rdmem(void){ |
cbdcc89a | 43 | PrintAndLog("Read data from a legic tag."); |
00271f77 | 44 | PrintAndLog("Usage: hf legic rdmem [h] <offset> <length> <IV>"); |
514ddaa2 | 45 | PrintAndLog("Options:"); |
ffa306de | 46 | PrintAndLog(" h : this help"); |
86087eba | 47 | PrintAndLog(" <offset> : offset in data array to start download from (hex)"); |
48 | PrintAndLog(" <length> : number of bytes to read (hex)"); | |
49 | PrintAndLog(" <IV> : (optional) Initialization vector to use (hex, odd and 7bits)"); | |
cbdcc89a | 50 | PrintAndLog(""); |
514ddaa2 | 51 | PrintAndLog("Samples:"); |
00271f77 | 52 | PrintAndLog(" hf legic rdmem 0 21 - reads from byte[0] 21 bytes(system header)"); |
53 | PrintAndLog(" hf legic rdmem 0 4 55 - reads from byte[0] 4 bytes with IV 0x55"); | |
54 | PrintAndLog(" hf legic rdmem 0 100 55 - reads 256bytes with IV 0x55"); | |
cbdcc89a | 55 | return 0; |
56 | } | |
e8fecd72 | 57 | int usage_legic_sim(void){ |
ffa306de | 58 | PrintAndLog("Missing help text."); |
59 | return 0; | |
60 | } | |
61 | int usage_legic_write(void){ | |
62 | PrintAndLog(" Write sample buffer to a legic tag. (use after load or read)"); | |
63 | PrintAndLog("Usage: hf legic write [h] <offset> <length> <IV>"); | |
64 | PrintAndLog("Options:"); | |
65 | PrintAndLog(" h : this help"); | |
86087eba | 66 | PrintAndLog(" <offset> : offset in data array to start writing from (hex)"); |
67 | PrintAndLog(" <length> : number of bytes to write (hex)"); | |
b98827ff | 68 | PrintAndLog(" <IV> : (optional) Initialization vector to use (ODD and 7bits)"); |
ffa306de | 69 | PrintAndLog(""); |
70 | PrintAndLog("Samples:"); | |
86087eba | 71 | PrintAndLog(" hf legic write 10 4 - writes 0x4 to byte[0x10]"); |
e8fecd72 | 72 | return 0; |
73 | } | |
74 | int usage_legic_rawwrite(void){ | |
86087eba | 75 | PrintAndLog("Write raw data direct to a specific offset on legic tag."); |
76 | PrintAndLog("Usage: hf legic writeraw [h] <offset> <value> <IV>"); | |
ffa306de | 77 | PrintAndLog("Options:"); |
78 | PrintAndLog(" h : this help"); | |
86087eba | 79 | PrintAndLog(" <offset> : offset to write to (hex)"); |
80 | PrintAndLog(" <value> : value (hex)"); | |
81 | PrintAndLog(" <IV> : (optional) Initialization vector to use (hex, odd and 7bits)"); | |
ffa306de | 82 | PrintAndLog(""); |
83 | PrintAndLog("Samples:"); | |
86087eba | 84 | PrintAndLog(" hf legic writeraw 10 4 - writes 0x4 to byte[0x10]"); |
e8fecd72 | 85 | return 0; |
86 | } | |
87 | int usage_legic_fill(void){ | |
ffa306de | 88 | PrintAndLog("Missing help text."); |
e8fecd72 | 89 | return 0; |
90 | } | |
633d0686 | 91 | int usage_legic_reader(void){ |
92 | PrintAndLog("Read UID and type information from a legic tag."); | |
93 | PrintAndLog("Usage: hf legic reader [h]"); | |
94 | PrintAndLog("Options:"); | |
95 | PrintAndLog(" h : this help"); | |
96 | PrintAndLog(""); | |
97 | PrintAndLog("Samples:"); | |
98 | PrintAndLog(" hf legic reader"); | |
99 | return 0; | |
100 | } | |
3e750be3 | 101 | int usage_legic_info(void){ |
633d0686 | 102 | PrintAndLog("Reads information from a legic prime tag."); |
103 | PrintAndLog("Shows systemarea, user areas etc"); | |
3e750be3 | 104 | PrintAndLog("Usage: hf legic info [h]"); |
105 | PrintAndLog("Options:"); | |
106 | PrintAndLog(" h : this help"); | |
107 | PrintAndLog(""); | |
108 | PrintAndLog("Samples:"); | |
109 | PrintAndLog(" hf legic info"); | |
110 | return 0; | |
111 | } | |
633d0686 | 112 | int usage_legic_dump(void){ |
113 | PrintAndLog("Reads all pages from LEGIC MIM22, MIM256, MIM1024"); | |
114 | PrintAndLog("and saves binary dump into the file `filename.bin` or `cardUID.bin`"); | |
115 | PrintAndLog("It autodetects card type.\n"); | |
116 | PrintAndLog("Usage: hf legic dump [h] o <filename w/o .bin>"); | |
117 | PrintAndLog("Options:"); | |
118 | PrintAndLog(" h : this help"); | |
119 | PrintAndLog(" n <FN> : filename w/o .bin to save the dump as"); | |
120 | PrintAndLog(""); | |
121 | PrintAndLog("Samples:"); | |
122 | PrintAndLog(" hf legic dump"); | |
123 | PrintAndLog(" hf legic dump o myfile"); | |
124 | return 0; | |
125 | } | |
126 | ||
669c1b80 | 127 | /* |
128 | * Output BigBuf and deobfuscate LEGIC RF tag data. | |
cbdcc89a | 129 | * This is based on information given in the talk held |
669c1b80 | 130 | * by Henryk Ploetz and Karsten Nohl at 26c3 |
669c1b80 | 131 | */ |
633d0686 | 132 | int CmdLegicInfo(const char *Cmd) { |
133 | ||
134 | char cmdp = param_getchar(Cmd, 0); | |
135 | if ( cmdp == 'H' || cmdp == 'h' ) return usage_legic_info(); | |
e8fecd72 | 136 | |
137 | int i = 0, k = 0, segmentNum = 0, segment_len = 0, segment_flag = 0; | |
138 | int crc = 0, wrp = 0, wrc = 0; | |
60bb5ef7 | 139 | uint8_t stamp_len = 0; |
77a689db | 140 | uint8_t data[1024]; // receiver buffer |
e8fecd72 | 141 | char token_type[5] = {0,0,0,0,0}; |
142 | int dcf = 0; | |
3e134b4c | 143 | int bIsSegmented = 0; |
52cf34c1 | 144 | |
00271f77 | 145 | CmdLegicRdmem("0 21 55"); |
633d0686 | 146 | |
77a689db | 147 | // copy data from device |
148 | GetEMLFromBigBuf(data, sizeof(data), 0); | |
f7f844d0 | 149 | if ( !WaitForResponseTimeout(CMD_ACK, NULL, 2000)){ |
150 | PrintAndLog("Command execute timeout"); | |
151 | return 1; | |
152 | } | |
153 | ||
52cf34c1 | 154 | // Output CDF System area (9 bytes) plus remaining header area (12 bytes) |
77a689db | 155 | crc = data[4]; |
156 | uint32_t calc_crc = CRC8Legic(data, 4); | |
3b920280 | 157 | |
52cf34c1 | 158 | PrintAndLog("\nCDF: System Area"); |
aacb96d7 | 159 | PrintAndLog("------------------------------------------------------"); |
3b920280 | 160 | PrintAndLog("MCD: %02x, MSN: %02x %02x %02x, MCC: %02x %s", |
77a689db | 161 | data[0], |
162 | data[1], | |
163 | data[2], | |
164 | data[3], | |
165 | data[4], | |
166 | (calc_crc == crc) ? "OK":"Fail" | |
52cf34c1 | 167 | ); |
669c1b80 | 168 | |
3e134b4c | 169 | |
170 | token_type[0] = 0; | |
77a689db | 171 | dcf = ((int)data[6] << 8) | (int)data[5]; |
3e134b4c | 172 | |
173 | // New unwritten media? | |
174 | if(dcf == 0xFFFF) { | |
175 | ||
176 | PrintAndLog("DCF: %d (%02x %02x), Token Type=NM (New Media)", | |
177 | dcf, | |
77a689db | 178 | data[5], |
179 | data[6] | |
3e134b4c | 180 | ); |
181 | ||
182 | } else if(dcf > 60000) { // Master token? | |
183 | ||
184 | int fl = 0; | |
185 | ||
77a689db | 186 | if(data[6] == 0xec) { |
3e134b4c | 187 | strncpy(token_type, "XAM", sizeof(token_type)); |
188 | fl = 1; | |
77a689db | 189 | stamp_len = 0x0c - (data[5] >> 4); |
3e134b4c | 190 | } else { |
77a689db | 191 | switch (data[5] & 0x7f) { |
e8fecd72 | 192 | case 0x00 ... 0x2f: |
193 | strncpy(token_type, "IAM", sizeof(token_type)); | |
77a689db | 194 | fl = (0x2f - (data[5] & 0x7f)) + 1; |
e8fecd72 | 195 | break; |
196 | case 0x30 ... 0x6f: | |
197 | strncpy(token_type, "SAM", sizeof(token_type)); | |
77a689db | 198 | fl = (0x6f - (data[5] & 0x7f)) + 1; |
e8fecd72 | 199 | break; |
200 | case 0x70 ... 0x7f: | |
201 | strncpy(token_type, "GAM", sizeof(token_type)); | |
77a689db | 202 | fl = (0x7f - (data[5] & 0x7f)) + 1; |
e8fecd72 | 203 | break; |
204 | } | |
52cf34c1 | 205 | |
77a689db | 206 | stamp_len = 0xfc - data[6]; |
3e134b4c | 207 | } |
52cf34c1 | 208 | |
3e134b4c | 209 | PrintAndLog("DCF: %d (%02x %02x), Token Type=%s (OLE=%01u), OL=%02u, FL=%02u", |
210 | dcf, | |
77a689db | 211 | data[5], |
212 | data[6], | |
e8fecd72 | 213 | token_type, |
77a689db | 214 | (data[5] & 0x80 )>> 7, |
3e134b4c | 215 | stamp_len, |
216 | fl | |
e8fecd72 | 217 | ); |
52cf34c1 | 218 | |
e8fecd72 | 219 | } else { // Is IM(-S) type of card... |
3e134b4c | 220 | |
77a689db | 221 | if(data[7] == 0x9F && data[8] == 0xFF) { |
3e134b4c | 222 | bIsSegmented = 1; |
223 | strncpy(token_type, "IM-S", sizeof(token_type)); | |
224 | } else { | |
225 | strncpy(token_type, "IM", sizeof(token_type)); | |
226 | } | |
227 | ||
228 | PrintAndLog("DCF: %d (%02x %02x), Token Type=%s (OLE=%01u)", | |
229 | dcf, | |
77a689db | 230 | data[5], |
231 | data[6], | |
3e134b4c | 232 | token_type, |
77a689db | 233 | (data[5]&0x80) >> 7 |
3e134b4c | 234 | ); |
235 | } | |
236 | ||
237 | // Makes no sence to show this on blank media... | |
238 | if(dcf != 0xFFFF) { | |
239 | ||
240 | if(bIsSegmented) { | |
241 | PrintAndLog("WRP=%02u, WRC=%01u, RD=%01u, SSC=%02x", | |
77a689db | 242 | data[7] & 0x0f, |
243 | (data[7] & 0x70) >> 4, | |
244 | (data[7] & 0x80) >> 7, | |
245 | data[8] | |
e8fecd72 | 246 | ); |
3e134b4c | 247 | } |
52cf34c1 | 248 | |
3e134b4c | 249 | // Header area is only available on IM-S cards, on master tokens this data is the master token data itself |
250 | if(bIsSegmented || dcf > 60000) { | |
251 | if(dcf > 60000) { | |
252 | PrintAndLog("Master token data"); | |
77a689db | 253 | PrintAndLog("%s", sprint_hex(data+8, 14)); |
3e134b4c | 254 | } else { |
e8fecd72 | 255 | PrintAndLog("Remaining Header Area"); |
77a689db | 256 | PrintAndLog("%s", sprint_hex(data+9, 13)); |
3e134b4c | 257 | } |
258 | } | |
259 | } | |
d7fd9084 | 260 | |
e8fecd72 | 261 | uint8_t segCrcBytes[8] = {0,0,0,0,0,0,0,0}; |
e579e768 | 262 | uint32_t segCalcCRC = 0; |
263 | uint32_t segCRC = 0; | |
d7fd9084 | 264 | |
3e134b4c | 265 | // Data card? |
266 | if(dcf <= 60000) { | |
cbdcc89a | 267 | |
e8fecd72 | 268 | PrintAndLog("\nADF: User Area"); |
269 | PrintAndLog("------------------------------------------------------"); | |
3e134b4c | 270 | |
271 | if(bIsSegmented) { | |
272 | ||
273 | // Data start point on segmented cards | |
e8fecd72 | 274 | i = 22; |
3e134b4c | 275 | |
276 | // decode segments | |
277 | for (segmentNum=1; segmentNum < 128; segmentNum++ ) | |
278 | { | |
77a689db | 279 | segment_len = ((data[i+1] ^ crc) & 0x0f) * 256 + (data[i] ^ crc); |
280 | segment_flag = ((data[i+1] ^ crc) & 0xf0) >> 4; | |
281 | wrp = (data[i+2] ^ crc); | |
282 | wrc = ((data[i+3] ^ crc) & 0x70) >> 4; | |
e8fecd72 | 283 | |
284 | bool hasWRC = (wrc > 0); | |
285 | bool hasWRP = (wrp > wrc); | |
286 | int wrp_len = (wrp - wrc); | |
287 | int remain_seg_payload_len = (segment_len - wrp - 5); | |
e579e768 | 288 | |
e8fecd72 | 289 | // validate segment-crc |
77a689db | 290 | segCrcBytes[0]=data[0]; //uid0 |
291 | segCrcBytes[1]=data[1]; //uid1 | |
292 | segCrcBytes[2]=data[2]; //uid2 | |
293 | segCrcBytes[3]=data[3]; //uid3 | |
294 | segCrcBytes[4]=(data[i] ^ crc); //hdr0 | |
295 | segCrcBytes[5]=(data[i+1] ^ crc); //hdr1 | |
296 | segCrcBytes[6]=(data[i+2] ^ crc); //hdr2 | |
297 | segCrcBytes[7]=(data[i+3] ^ crc); //hdr3 | |
e8fecd72 | 298 | |
299 | segCalcCRC = CRC8Legic(segCrcBytes, 8); | |
77a689db | 300 | segCRC = data[i+4] ^ crc; |
e8fecd72 | 301 | |
302 | PrintAndLog("Segment %02u \nraw header | 0x%02X 0x%02X 0x%02X 0x%02X \nSegment len: %u, Flag: 0x%X (valid:%01u, last:%01u), WRP: %02u, WRC: %02u, RD: %01u, CRC: 0x%02X (%s)", | |
303 | segmentNum, | |
77a689db | 304 | data[i] ^ crc, |
305 | data[i+1] ^ crc, | |
306 | data[i+2] ^ crc, | |
307 | data[i+3] ^ crc, | |
e8fecd72 | 308 | segment_len, |
309 | segment_flag, | |
310 | (segment_flag & 0x4) >> 2, | |
311 | (segment_flag & 0x8) >> 3, | |
312 | wrp, | |
313 | wrc, | |
77a689db | 314 | ((data[i+3]^crc) & 0x80) >> 7, |
e8fecd72 | 315 | segCRC, |
316 | ( segCRC == segCalcCRC ) ? "OK" : "fail" | |
317 | ); | |
318 | ||
319 | i += 5; | |
669c1b80 | 320 | |
e8fecd72 | 321 | if ( hasWRC ) { |
322 | PrintAndLog("WRC protected area: (I %d | K %d| WRC %d)", i, k, wrc); | |
323 | PrintAndLog("\nrow | data"); | |
324 | PrintAndLog("-----+------------------------------------------------"); | |
3e134b4c | 325 | |
26778ea7 | 326 | for ( k=i; k < (i + wrc); ++k) |
77a689db | 327 | data[k] ^= crc; |
3e134b4c | 328 | |
77a689db | 329 | print_hex_break( data+i, wrc, 16); |
3b920280 | 330 | |
e8fecd72 | 331 | i += wrc; |
332 | } | |
669c1b80 | 333 | |
e8fecd72 | 334 | if ( hasWRP ) { |
335 | PrintAndLog("Remaining write protected area: (I %d | K %d | WRC %d | WRP %d WRP_LEN %d)",i, k, wrc, wrp, wrp_len); | |
336 | PrintAndLog("\nrow | data"); | |
337 | PrintAndLog("-----+------------------------------------------------"); | |
d7fd9084 | 338 | |
3e134b4c | 339 | for (k=i; k < (i+wrp_len); ++k) |
77a689db | 340 | data[k] ^= crc; |
3b920280 | 341 | |
77a689db | 342 | print_hex_break( data+i, wrp_len, 16); |
3b920280 | 343 | |
e8fecd72 | 344 | i += wrp_len; |
d7fd9084 | 345 | |
3e134b4c | 346 | // does this one work? (Answer: Only if KGH/BGH is used with BCD encoded card number! So maybe this will show just garbage...) |
e8fecd72 | 347 | if( wrp_len == 8 ) |
77a689db | 348 | PrintAndLog("Card ID: %2X%02X%02X", data[i-4]^crc, data[i-3]^crc, data[i-2]^crc); |
e8fecd72 | 349 | } |
669c1b80 | 350 | |
e8fecd72 | 351 | PrintAndLog("Remaining segment payload: (I %d | K %d | Remain LEN %d)", i, k, remain_seg_payload_len); |
352 | PrintAndLog("\nrow | data"); | |
353 | PrintAndLog("-----+------------------------------------------------"); | |
3e134b4c | 354 | |
355 | for ( k=i; k < (i+remain_seg_payload_len); ++k) | |
77a689db | 356 | data[k] ^= crc; |
3b920280 | 357 | |
77a689db | 358 | print_hex_break( data+i, remain_seg_payload_len, 16); |
669c1b80 | 359 | |
e8fecd72 | 360 | i += remain_seg_payload_len; |
d7fd9084 | 361 | |
e8fecd72 | 362 | PrintAndLog("-----+------------------------------------------------\n"); |
a182a680 | 363 | |
e8fecd72 | 364 | // end with last segment |
365 | if (segment_flag & 0x8) return 0; | |
52cf34c1 | 366 | |
e8fecd72 | 367 | } // end for loop |
3e134b4c | 368 | |
369 | } else { | |
370 | ||
371 | // Data start point on unsegmented cards | |
372 | i = 8; | |
373 | ||
77a689db | 374 | wrp = data[7] & 0x0F; |
375 | wrc = (data[7] & 0x70) >> 4; | |
3e134b4c | 376 | |
377 | bool hasWRC = (wrc > 0); | |
378 | bool hasWRP = (wrp > wrc); | |
379 | int wrp_len = (wrp - wrc); | |
380 | int remain_seg_payload_len = (1024 - 22 - wrp); // Any chance to get physical card size here!? | |
381 | ||
382 | PrintAndLog("Unsegmented card - WRP: %02u, WRC: %02u, RD: %01u", | |
383 | wrp, | |
384 | wrc, | |
77a689db | 385 | (data[7] & 0x80) >> 7 |
3e134b4c | 386 | ); |
387 | ||
388 | if ( hasWRC ) { | |
389 | PrintAndLog("WRC protected area: (I %d | WRC %d)", i, wrc); | |
390 | PrintAndLog("\nrow | data"); | |
391 | PrintAndLog("-----+------------------------------------------------"); | |
77a689db | 392 | print_hex_break( data+i, wrc, 16); |
3e134b4c | 393 | i += wrc; |
394 | } | |
395 | ||
396 | if ( hasWRP ) { | |
397 | PrintAndLog("Remaining write protected area: (I %d | WRC %d | WRP %d | WRP_LEN %d)", i, wrc, wrp, wrp_len); | |
398 | PrintAndLog("\nrow | data"); | |
399 | PrintAndLog("-----+------------------------------------------------"); | |
77a689db | 400 | print_hex_break( data + i, wrp_len, 16); |
3e134b4c | 401 | i += wrp_len; |
402 | ||
403 | // does this one work? (Answer: Only if KGH/BGH is used with BCD encoded card number! So maybe this will show just garbage...) | |
404 | if( wrp_len == 8 ) | |
77a689db | 405 | PrintAndLog("Card ID: %2X%02X%02X", data[i-4], data[i-3], data[i-2]); |
3e134b4c | 406 | } |
407 | ||
408 | PrintAndLog("Remaining segment payload: (I %d | Remain LEN %d)", i, remain_seg_payload_len); | |
409 | PrintAndLog("\nrow | data"); | |
410 | PrintAndLog("-----+------------------------------------------------"); | |
77a689db | 411 | print_hex_break( data + i, remain_seg_payload_len, 16); |
3e134b4c | 412 | i += remain_seg_payload_len; |
413 | ||
414 | PrintAndLog("-----+------------------------------------------------\n"); | |
415 | } | |
416 | } | |
52cf34c1 | 417 | return 0; |
669c1b80 | 418 | } |
41dab153 | 419 | |
00271f77 | 420 | int CmdLegicRdmem(const char *Cmd) { |
ffa306de | 421 | |
cbdcc89a | 422 | // params: |
fabef615 | 423 | // offset in data memory |
424 | // number of bytes to read | |
cbdcc89a | 425 | char cmdp = param_getchar(Cmd, 0); |
00271f77 | 426 | if ( cmdp == 'H' || cmdp == 'h' ) return usage_legic_rdmem(); |
cbdcc89a | 427 | |
b98827ff | 428 | uint32_t offset = 0, len = 0, IV = 1; |
ffa306de | 429 | sscanf(Cmd, "%x %x %x", &offset, &len, &IV); |
52cf34c1 | 430 | |
ffa306de | 431 | // OUT-OF-BOUNDS check |
a3994421 | 432 | if ( len + offset > MAX_LENGTH ) { |
433 | len = MAX_LENGTH - offset; | |
e1a0ed65 | 434 | PrintAndLog("Out-of-bound, shorten len to %d (0x%02X)", len, len); |
a3994421 | 435 | } |
ffa306de | 436 | |
b98827ff | 437 | if ( (IV & 0x7F) != IV ){ |
438 | IV &= 0x7F; | |
439 | PrintAndLog("Truncating IV to 7bits"); | |
440 | } | |
a3994421 | 441 | |
b98827ff | 442 | if ( (IV & 1) == 0 ){ |
a3994421 | 443 | IV |= 0x01; |
b98827ff | 444 | PrintAndLog("LSB of IV must be SET"); |
445 | } | |
ffa306de | 446 | |
ad5bc8cc | 447 | UsbCommand c = {CMD_READER_LEGIC_RF, {offset, len, IV}}; |
52cf34c1 | 448 | clearCommandBuffer(); |
449 | SendCommand(&c); | |
ad5bc8cc | 450 | UsbCommand resp; |
1daa1226 | 451 | if (WaitForResponseTimeout(CMD_ACK, &resp, 3000)) { |
ad5bc8cc | 452 | uint8_t isOK = resp.arg[0] & 0xFF; |
7a8db2f6 | 453 | uint16_t readlen = resp.arg[1]; |
87342aad | 454 | if ( isOK ) { |
c649c433 | 455 | |
86087eba | 456 | uint8_t *data = malloc(readlen); |
0b0b182f | 457 | if ( !data ){ |
458 | PrintAndLog("Cannot allocate memory"); | |
459 | return 2; | |
460 | } | |
86087eba | 461 | |
462 | if ( readlen != len ) | |
463 | PrintAndLog("Fail, only managed to read 0x%02X bytes", readlen); | |
464 | ||
0b0b182f | 465 | // copy data from device |
86087eba | 466 | GetEMLFromBigBuf(data, readlen, 0); |
7a8db2f6 | 467 | if ( !WaitForResponseTimeout(CMD_ACK, NULL, 2500)){ |
0b0b182f | 468 | PrintAndLog("Command execute timeout"); |
469 | if ( data ) | |
470 | free(data); | |
471 | return 1; | |
472 | } | |
473 | ||
c15e07f1 | 474 | PrintAndLog("\n ## | Data"); |
475 | PrintAndLog("-----+-----"); | |
86087eba | 476 | print_hex_break( data, readlen, 32); |
c649c433 | 477 | } else { |
478 | PrintAndLog("failed reading tag"); | |
479 | } | |
ad5bc8cc | 480 | } else { |
481 | PrintAndLog("command execution time out"); | |
482 | return 1; | |
483 | } | |
52cf34c1 | 484 | return 0; |
41dab153 | 485 | } |
3612a8a8 | 486 | |
52cf34c1 | 487 | int CmdLegicLoad(const char *Cmd) { |
e8fecd72 | 488 | |
489 | // iceman: potential bug, where all filepaths or filename which starts with H or h will print the helptext :) | |
52cf34c1 | 490 | char cmdp = param_getchar(Cmd, 0); |
e579e768 | 491 | if ( cmdp == 'H' || cmdp == 'h' || cmdp == 0x00) return usage_legic_load(); |
b915fda3 | 492 | |
e579e768 | 493 | char filename[FILE_PATH_SIZE] = {0x00}; |
494 | int len = strlen(Cmd); | |
495 | ||
b915fda3 | 496 | if (len > FILE_PATH_SIZE) { |
497 | PrintAndLog("Filepath too long (was %s bytes), max allowed is %s ", len, FILE_PATH_SIZE); | |
498 | return 0; | |
499 | } | |
500 | memcpy(filename, Cmd, len); | |
501 | ||
502 | FILE *f = fopen(filename, "r"); | |
3612a8a8 | 503 | if(!f) { |
504 | PrintAndLog("couldn't open '%s'", Cmd); | |
505 | return -1; | |
506 | } | |
52cf34c1 | 507 | |
508 | char line[80]; | |
810f5379 | 509 | int offset = 0; |
c6e0a2eb | 510 | uint8_t data[USB_CMD_DATA_SIZE] = {0x00}; |
511 | int index = 0; | |
512 | int totalbytes = 0; | |
52cf34c1 | 513 | while ( fgets(line, sizeof(line), f) ) { |
3612a8a8 | 514 | int res = sscanf(line, "%x %x %x %x %x %x %x %x", |
c6e0a2eb | 515 | (unsigned int *)&data[index], |
516 | (unsigned int *)&data[index + 1], | |
517 | (unsigned int *)&data[index + 2], | |
518 | (unsigned int *)&data[index + 3], | |
519 | (unsigned int *)&data[index + 4], | |
520 | (unsigned int *)&data[index + 5], | |
521 | (unsigned int *)&data[index + 6], | |
522 | (unsigned int *)&data[index + 7]); | |
e7d099dc | 523 | |
3612a8a8 | 524 | if(res != 8) { |
525 | PrintAndLog("Error: could not read samples"); | |
526 | fclose(f); | |
527 | return -1; | |
528 | } | |
c6e0a2eb | 529 | index += res; |
530 | ||
531 | if ( index == USB_CMD_DATA_SIZE ){ | |
532 | // PrintAndLog("sent %d | %d | %d", index, offset, totalbytes); | |
533 | UsbCommand c = { CMD_DOWNLOADED_SIM_SAMPLES_125K, {offset, 0, 0}}; | |
534 | memcpy(c.d.asBytes, data, sizeof(data)); | |
535 | clearCommandBuffer(); | |
536 | SendCommand(&c); | |
d7fd9084 | 537 | if ( !WaitForResponseTimeout(CMD_ACK, NULL, 1500)){ |
538 | PrintAndLog("Command execute timeout"); | |
539 | fclose(f); | |
540 | return 1; | |
541 | } | |
c6e0a2eb | 542 | offset += index; |
543 | totalbytes += index; | |
544 | index = 0; | |
545 | } | |
3612a8a8 | 546 | } |
547 | fclose(f); | |
c6e0a2eb | 548 | |
549 | // left over bytes? | |
550 | if ( index != 0 ) { | |
551 | UsbCommand c = { CMD_DOWNLOADED_SIM_SAMPLES_125K, {offset, 0, 0}}; | |
552 | memcpy(c.d.asBytes, data, 8); | |
553 | clearCommandBuffer(); | |
554 | SendCommand(&c); | |
d7fd9084 | 555 | if ( !WaitForResponseTimeout(CMD_ACK, NULL, 1500)){ |
556 | PrintAndLog("Command execute timeout"); | |
557 | return 1; | |
558 | } | |
c6e0a2eb | 559 | totalbytes += index; |
560 | } | |
561 | ||
562 | PrintAndLog("loaded %u samples", totalbytes); | |
3612a8a8 | 563 | return 0; |
564 | } | |
565 | ||
52cf34c1 | 566 | int CmdLegicSave(const char *Cmd) { |
567 | int requested = 1024; | |
568 | int offset = 0; | |
569 | int delivered = 0; | |
e8fecd72 | 570 | char filename[FILE_PATH_SIZE] = {0x00}; |
52cf34c1 | 571 | uint8_t got[1024] = {0x00}; |
572 | ||
e8fecd72 | 573 | memset(filename, 0, FILE_PATH_SIZE); |
574 | ||
52cf34c1 | 575 | sscanf(Cmd, " %s %i %i", filename, &requested, &offset); |
576 | ||
577 | /* If no length given save entire legic read buffer */ | |
578 | /* round up to nearest 8 bytes so the saved data can be used with legicload */ | |
e7d099dc | 579 | if (requested == 0) |
52cf34c1 | 580 | requested = 1024; |
52cf34c1 | 581 | |
582 | if (requested % 8 != 0) { | |
583 | int remainder = requested % 8; | |
584 | requested = requested + 8 - remainder; | |
585 | } | |
586 | ||
587 | if (offset + requested > sizeof(got)) { | |
588 | PrintAndLog("Tried to read past end of buffer, <bytes> + <offset> > 1024"); | |
589 | return 0; | |
590 | } | |
591 | ||
d7fd9084 | 592 | GetFromBigBuf(got, requested, offset); |
f7f844d0 | 593 | if ( !WaitForResponseTimeout(CMD_ACK, NULL, 2000)){ |
aacb96d7 | 594 | PrintAndLog("Command execute timeout"); |
f7f844d0 | 595 | return 1; |
596 | } | |
52cf34c1 | 597 | |
aacb96d7 | 598 | FILE *f = fopen(filename, "w"); |
599 | if(!f) { | |
600 | PrintAndLog("couldn't open '%s'", Cmd+1); | |
601 | return -1; | |
602 | } | |
603 | ||
52cf34c1 | 604 | for (int j = 0; j < requested; j += 8) { |
605 | fprintf(f, "%02x %02x %02x %02x %02x %02x %02x %02x\n", | |
c6e0a2eb | 606 | got[j+0], got[j+1], got[j+2], got[j+3], |
607 | got[j+4], got[j+5], got[j+6], got[j+7] | |
52cf34c1 | 608 | ); |
609 | delivered += 8; | |
610 | if (delivered >= requested) break; | |
611 | } | |
612 | ||
613 | fclose(f); | |
614 | PrintAndLog("saved %u samples", delivered); | |
615 | return 0; | |
3612a8a8 | 616 | } |
617 | ||
f7f844d0 | 618 | //TODO: write a help text (iceman) |
52cf34c1 | 619 | int CmdLegicRfSim(const char *Cmd) { |
3b920280 | 620 | UsbCommand c = {CMD_SIMULATE_TAG_LEGIC_RF, {6,3,0}}; |
52cf34c1 | 621 | sscanf(Cmd, " %"lli" %"lli" %"lli, &c.arg[0], &c.arg[1], &c.arg[2]); |
622 | clearCommandBuffer(); | |
623 | SendCommand(&c); | |
624 | return 0; | |
3612a8a8 | 625 | } |
626 | ||
52cf34c1 | 627 | int CmdLegicRfWrite(const char *Cmd) { |
ffa306de | 628 | |
629 | // params: | |
630 | // offset - in tag memory | |
631 | // length - num of bytes to be written | |
632 | // IV - initialisation vector | |
633 | ||
634 | char cmdp = param_getchar(Cmd, 0); | |
635 | if ( cmdp == 'H' || cmdp == 'h' ) return usage_legic_write(); | |
636 | ||
b98827ff | 637 | uint32_t offset = 0, len = 0, IV = 0; |
ffa306de | 638 | |
ffa306de | 639 | int res = sscanf(Cmd, "%x %x %x", &offset, &len, &IV); |
640 | if(res < 2) { | |
641 | PrintAndLog("Please specify the offset and length as two hex strings and, optionally, the IV also as an hex string"); | |
3612a8a8 | 642 | return -1; |
643 | } | |
ffa306de | 644 | |
645 | // OUT-OF-BOUNDS check | |
7bc3c99e | 646 | if ( len + offset > MAX_LENGTH ) { |
647 | len = MAX_LENGTH - offset; | |
e1a0ed65 | 648 | PrintAndLog("Out-of-bound, shorten len to %d (0x%02X)", len, len); |
7bc3c99e | 649 | } |
b98827ff | 650 | if ( (IV & 0x7F) != IV ){ |
651 | IV &= 0x7F; | |
652 | PrintAndLog("Truncating IV to 7bits"); | |
653 | } | |
654 | if ( (IV & 1) == 0 ){ | |
655 | IV |= 0x01; // IV must be odd | |
656 | PrintAndLog("LSB of IV must be SET"); | |
657 | } | |
ffa306de | 658 | |
7bc3c99e | 659 | UsbCommand c = {CMD_WRITER_LEGIC_RF, {offset, len, IV}}; |
52cf34c1 | 660 | clearCommandBuffer(); |
3612a8a8 | 661 | SendCommand(&c); |
7bc3c99e | 662 | UsbCommand resp; |
663 | if (WaitForResponseTimeout(CMD_ACK, &resp, 2000)) { | |
664 | uint8_t isOK = resp.arg[0] & 0xFF; | |
665 | if ( isOK ) { | |
666 | } else { | |
667 | PrintAndLog("failed writig tag"); | |
668 | } | |
669 | } else { | |
670 | PrintAndLog("command execution time out"); | |
671 | return 1; | |
672 | } | |
673 | ||
3612a8a8 | 674 | return 0; |
675 | } | |
676 | ||
3e134b4c | 677 | int CmdLegicRfRawWrite(const char *Cmd) { |
ffa306de | 678 | |
679 | char cmdp = param_getchar(Cmd, 0); | |
680 | if ( cmdp == 'H' || cmdp == 'h' ) return usage_legic_rawwrite(); | |
681 | ||
86087eba | 682 | uint32_t offset = 0, data = 0, IV = 0; |
3e134b4c | 683 | char answer; |
ffa306de | 684 | |
86087eba | 685 | int res = sscanf(Cmd, "%x %x %x", &offset, &data, &IV); |
ffa306de | 686 | if(res < 2) |
687 | return usage_legic_rawwrite(); | |
86087eba | 688 | |
ffa306de | 689 | // OUT-OF-BOUNDS check |
86087eba | 690 | if ( offset > MAX_LENGTH ) { |
7a8db2f6 | 691 | PrintAndLog("Out-of-bound, offset"); |
692 | return 1; | |
86087eba | 693 | } |
ffa306de | 694 | |
b98827ff | 695 | if ( (IV & 0x7F) != IV ){ |
696 | IV &= 0x7F; | |
697 | PrintAndLog("Truncating IV to 7bits"); | |
698 | } | |
699 | if ( (IV & 1) == 0 ){ | |
700 | IV |= 0x01; // IV must be odd | |
701 | PrintAndLog("LSB of IV must be SET"); | |
702 | } | |
ffa306de | 703 | |
86087eba | 704 | UsbCommand c = { CMD_RAW_WRITER_LEGIC_RF, {offset, data, IV} }; |
3e134b4c | 705 | |
706 | if (c.arg[0] == 0x05 || c.arg[0] == 0x06) { | |
707 | PrintAndLog("############# DANGER !! #############"); | |
708 | PrintAndLog("# changing the DCF is irreversible #"); | |
709 | PrintAndLog("#####################################"); | |
710 | PrintAndLog("do youe really want to continue? y(es) n(o)"); | |
6e321dd8 | 711 | if (scanf(" %c", &answer) > 0 && (answer == 'y' || answer == 'Y')) { |
3e134b4c | 712 | SendCommand(&c); |
713 | return 0; | |
714 | } | |
715 | return -1; | |
716 | } | |
717 | ||
718 | clearCommandBuffer(); | |
719 | SendCommand(&c); | |
720 | return 0; | |
721 | } | |
722 | ||
723 | //TODO: write a help text (iceman) | |
52cf34c1 | 724 | int CmdLegicRfFill(const char *Cmd) { |
3e134b4c | 725 | UsbCommand cmd = {CMD_WRITER_LEGIC_RF, {0,0,0} }; |
1a07fd51 | 726 | int res = sscanf(Cmd, " 0x%"llx" 0x%"llx" 0x%"llx, &cmd.arg[0], &cmd.arg[1], &cmd.arg[2]); |
3612a8a8 | 727 | if(res != 3) { |
728 | PrintAndLog("Please specify the offset, length and value as two hex strings"); | |
729 | return -1; | |
730 | } | |
731 | ||
732 | int i; | |
52cf34c1 | 733 | UsbCommand c = {CMD_DOWNLOADED_SIM_SAMPLES_125K, {0, 0, 0}}; |
ba4ad25b | 734 | memset(c.d.asBytes, cmd.arg[2], 48); |
3e134b4c | 735 | |
52cf34c1 | 736 | for(i = 0; i < 22; i++) { |
737 | c.arg[0] = i*48; | |
3e134b4c | 738 | |
739 | clearCommandBuffer(); | |
52cf34c1 | 740 | SendCommand(&c); |
3e134b4c | 741 | WaitForResponse(CMD_ACK, NULL); |
52cf34c1 | 742 | } |
743 | clearCommandBuffer(); | |
3612a8a8 | 744 | SendCommand(&cmd); |
745 | return 0; | |
746 | } | |
747 | ||
87342aad | 748 | void static calc4(uint8_t *cmd, uint8_t len){ |
749 | crc_t crc; | |
750 | //crc_init_ref(&crc, 4, 0x19 >> 1, 0x5, 0, TRUE, TRUE); | |
751 | crc_init(&crc, 4, 0x19 >> 1, 0x5, 0); | |
752 | ||
753 | crc_clear(&crc); | |
754 | crc_update(&crc, 1, 1); /* CMD_READ */ | |
755 | crc_update(&crc, cmd[0], 8); | |
756 | crc_update(&crc, cmd[1], 8); | |
757 | printf("crc4 %X\n", reflect(crc_finish(&crc), 4) ) ; | |
758 | ||
759 | crc_clear(&crc); | |
760 | crc_update(&crc, 1, 1); /* CMD_READ */ | |
761 | crc_update(&crc, cmd[0], 8); | |
762 | crc_update(&crc, cmd[1], 8); | |
f1f7430a | 763 | printf("crc4 %X\n", crc_finish(&crc) ) ; |
87342aad | 764 | |
765 | printf("---- old ---\n"); | |
766 | crc_update2(&crc, 1, 1); /* CMD_READ */ | |
767 | crc_update2(&crc, cmd[0], 8); | |
768 | crc_update2(&crc, cmd[1], 8); | |
769 | printf("crc4 %X \n", reflect(crc_finish(&crc), 4) ) ; | |
770 | ||
771 | ||
772 | crc_clear(&crc); | |
773 | crc_update2(&crc, 1, 1); /* CMD_READ */ | |
774 | crc_update2(&crc, cmd[0], 8); | |
775 | crc_update2(&crc, cmd[1], 8); | |
f1f7430a | 776 | printf("crc4 %X\n", crc_finish(&crc) ) ; |
87342aad | 777 | } |
778 | ||
3b920280 | 779 | int CmdLegicCalcCrc8(const char *Cmd){ |
780 | ||
cc4c8fd6 | 781 | uint8_t *data = NULL; |
3e134b4c | 782 | uint8_t cmdp = 0, uidcrc = 0, type=0; |
783 | bool errors = false; | |
784 | int len = 0; | |
e31a0f73 | 785 | int bg, en; |
3b920280 | 786 | |
3e134b4c | 787 | while(param_getchar(Cmd, cmdp) != 0x00) { |
788 | switch(param_getchar(Cmd, cmdp)) { | |
789 | case 'b': | |
790 | case 'B': | |
e31a0f73 AG |
791 | // peek at length of the input string so we can |
792 | // figure out how many elements to malloc in "data" | |
793 | bg=en=0; | |
987c5984 AG |
794 | if (param_getptr(Cmd, &bg, &en, cmdp+1)) { |
795 | errors = true; | |
796 | break; | |
797 | } | |
e31a0f73 AG |
798 | len = (en - bg + 1); |
799 | ||
800 | // check that user entered even number of characters | |
801 | // for hex data string | |
802 | if (len & 1) { | |
803 | errors = true; | |
804 | break; | |
805 | } | |
806 | ||
08927081 AG |
807 | // it's possible for user to accidentally enter "b" parameter |
808 | // more than once - we have to clean previous malloc | |
809 | if (data) free(data); | |
e31a0f73 | 810 | data = malloc(len >> 1); |
3e134b4c | 811 | if ( data == NULL ) { |
812 | PrintAndLog("Can't allocate memory. exiting"); | |
813 | errors = true; | |
814 | break; | |
e31a0f73 AG |
815 | } |
816 | ||
987c5984 AG |
817 | if (param_gethex(Cmd, cmdp+1, data, len)) { |
818 | errors = true; | |
819 | break; | |
820 | } | |
3e134b4c | 821 | |
822 | len >>= 1; | |
823 | cmdp += 2; | |
824 | break; | |
825 | case 'u': | |
826 | case 'U': | |
827 | uidcrc = param_get8ex(Cmd, cmdp+1, 0, 16); | |
828 | cmdp += 2; | |
829 | break; | |
830 | case 'c': | |
831 | case 'C': | |
832 | type = param_get8ex(Cmd, cmdp+1, 0, 10); | |
833 | cmdp += 2; | |
834 | break; | |
835 | case 'h': | |
836 | case 'H': | |
837 | errors = true; | |
838 | break; | |
839 | default: | |
840 | PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); | |
841 | errors = true; | |
842 | break; | |
843 | } | |
844 | if (errors) break; | |
845 | } | |
846 | //Validations | |
847 | if (errors){ | |
aeb128e2 | 848 | if (data) free(data); |
3e134b4c | 849 | return usage_legic_calccrc8(); |
850 | } | |
851 | ||
852 | switch (type){ | |
853 | case 16: | |
87342aad | 854 | PrintAndLog("Legic crc16: %X", CRC16Legic(data, len, uidcrc)); |
855 | break; | |
856 | case 4: | |
857 | calc4(data, 0); | |
3e134b4c | 858 | break; |
859 | default: | |
87342aad | 860 | PrintAndLog("Legic crc8: %X", CRC8Legic(data, len) ); |
3e134b4c | 861 | break; |
eb5206bd | 862 | } |
3b920280 | 863 | |
aeb128e2 | 864 | if (data) free(data); |
3b920280 | 865 | return 0; |
866 | } | |
867 | ||
633d0686 | 868 | int HFLegicReader(const char *Cmd, bool verbose) { |
3e750be3 | 869 | |
870 | char cmdp = param_getchar(Cmd, 0); | |
871 | if ( cmdp == 'H' || cmdp == 'h' ) return usage_legic_info(); | |
872 | ||
873 | UsbCommand c = {CMD_LEGIC_INFO, {0,0,0}}; | |
874 | clearCommandBuffer(); | |
875 | SendCommand(&c); | |
876 | UsbCommand resp; | |
a3994421 | 877 | if (!WaitForResponseTimeout(CMD_ACK, &resp, 500)) { |
323e05cc | 878 | if ( verbose ) PrintAndLog("command execution time out"); |
3e750be3 | 879 | return 1; |
880 | } | |
a3994421 | 881 | |
882 | uint8_t isOK = resp.arg[0] & 0xFF; | |
883 | if ( !isOK ) { | |
884 | if ( verbose ) PrintAndLog("legic card select failed"); | |
885 | return 1; | |
886 | } | |
887 | ||
888 | legic_card_select_t card; | |
889 | memcpy(&card, (legic_card_select_t *)resp.d.asBytes, sizeof(legic_card_select_t)); | |
890 | ||
891 | PrintAndLog(" UID : %s", sprint_hex(card.uid, sizeof(card.uid))); | |
892 | switch(card.cardsize) { | |
893 | case 22: | |
894 | case 256: | |
895 | case 1024: | |
896 | PrintAndLog(" TYPE : MIM%d card (%d bytes)", card.cardsize, card.cardsize); break; | |
897 | default: { | |
898 | PrintAndLog("Unknown card format: %d", card.cardsize); | |
899 | return 1; | |
900 | } | |
901 | } | |
3e750be3 | 902 | return 0; |
903 | } | |
633d0686 | 904 | int CmdLegicReader(const char *Cmd){ |
905 | return HFLegicReader(Cmd, TRUE); | |
3e750be3 | 906 | } |
633d0686 | 907 | |
908 | int CmdLegicDump(const char *Cmd){ | |
00271f77 | 909 | |
910 | FILE *fout; | |
911 | char filename[FILE_PATH_SIZE] = {0x00}; | |
912 | char *fnameptr = filename; | |
913 | size_t fileNlen = 0; | |
914 | bool errors = false; | |
915 | uint16_t dumplen = 0x100; | |
916 | ||
633d0686 | 917 | char cmdp = param_getchar(Cmd, 0); |
00271f77 | 918 | |
919 | while(param_getchar(Cmd, cmdp) != 0x00) | |
920 | { | |
921 | switch(param_getchar(Cmd, cmdp)) | |
922 | { | |
923 | case 'h': | |
924 | case 'H': | |
925 | return usage_legic_dump(); | |
926 | case 'o': | |
927 | case 'O': | |
928 | fileNlen = param_getstr(Cmd, cmdp+1, filename); | |
929 | if (!fileNlen) errors = true; | |
930 | if (fileNlen > FILE_PATH_SIZE-5) fileNlen = FILE_PATH_SIZE-5; | |
931 | cmdp += 2; | |
932 | break; | |
933 | default: | |
934 | PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); | |
935 | errors = true; | |
936 | break; | |
937 | } | |
938 | if(errors) break; | |
939 | } | |
940 | ||
941 | //Validations | |
942 | if(errors) return usage_legic_dump(); | |
943 | ||
944 | // tagtype | |
945 | //uint32_t tagtype = GetHF14AMfU_Type(); | |
946 | //if (tagtype == -1) return -1; | |
947 | ||
948 | UsbCommand c = {CMD_READER_LEGIC_RF, {0x00, dumplen, 0x55}}; | |
949 | clearCommandBuffer(); | |
950 | SendCommand(&c); | |
951 | UsbCommand resp; | |
952 | if (!WaitForResponseTimeout(CMD_ACK, &resp, 3000)) { | |
953 | PrintAndLog("Command execute time-out"); | |
954 | return 1; | |
955 | } | |
956 | ||
957 | uint8_t isOK = resp.arg[0] & 0xFF; | |
958 | if ( !isOK ) { | |
959 | PrintAndLog("Failed dumping tag data"); | |
960 | return 2; | |
961 | } | |
962 | ||
963 | uint16_t readlen = resp.arg[1]; | |
964 | uint8_t *data = malloc(readlen); | |
965 | if ( !data ){ | |
966 | PrintAndLog("Fail, cannot allocate memory"); | |
967 | return 3; | |
968 | } | |
969 | ||
970 | if ( readlen != dumplen ) | |
971 | PrintAndLog("Fail, only managed to read 0x%02X bytes of 0x%02X", readlen, dumplen); | |
972 | ||
973 | // copy data from device | |
974 | GetEMLFromBigBuf(data, readlen, 0); | |
975 | if ( !WaitForResponseTimeout(CMD_ACK, NULL, 2500)) { | |
976 | PrintAndLog("Fail, transfer from device time-out"); | |
977 | if ( data ) free(data); | |
978 | return 4; | |
979 | } | |
980 | ||
981 | // user supplied filename? | |
982 | if (fileNlen < 1) | |
983 | sprintf(fnameptr,"%02X%02X%02X%02X.bin", data[0], data[1], data[2], data[3]); | |
984 | else | |
985 | sprintf(fnameptr + fileNlen,".bin"); | |
986 | ||
987 | if ((fout = fopen(filename,"wb")) == NULL) { | |
988 | PrintAndLog("Could not create file name %s", filename); | |
989 | if ( data ) free(data); | |
990 | return 5; | |
991 | } | |
992 | fwrite( data, 1, readlen, fout ); | |
993 | fclose(fout); | |
994 | if ( data ) free(data); | |
995 | ||
996 | PrintAndLog("Wrote %d bytes to %s", readlen, filename); | |
633d0686 | 997 | return 0; |
998 | } | |
3e750be3 | 999 | |
52cf34c1 | 1000 | static command_t CommandTable[] = { |
633d0686 | 1001 | {"help", CmdHelp, 1, "This help"}, |
1002 | {"reader", CmdLegicReader, 1, "LEGIC Prime Reader UID and Type tag info"}, | |
1003 | {"info", CmdLegicInfo, 0, "Display deobfuscated and decoded LEGIC Prime tag data"}, | |
1004 | {"dump", CmdLegicDump, 0, "Dump LEGIC Prime card to binary file"}, | |
00271f77 | 1005 | {"rdmem", CmdLegicRdmem, 0, "[offset][length] <iv> -- read bytes from a LEGIC card"}, |
633d0686 | 1006 | {"save", CmdLegicSave, 0, "<filename> [<length>] -- Store samples"}, |
1007 | {"load", CmdLegicLoad, 0, "<filename> -- Restore samples"}, | |
1008 | {"sim", CmdLegicRfSim, 0, "[phase drift [frame drift [req/resp drift]]] Start tag simulator (use after load or read)"}, | |
1009 | {"write", CmdLegicRfWrite, 0, "<offset> <length> <iv> -- Write sample buffer (user after load or read)"}, | |
ffa306de | 1010 | {"writeraw",CmdLegicRfRawWrite, 0, "<address> <value> <iv> -- Write direct to address"}, |
633d0686 | 1011 | {"fill", CmdLegicRfFill, 0, "<offset> <length> <value> -- Fill/Write tag with constant value"}, |
1012 | {"crc8", CmdLegicCalcCrc8, 1, "Calculate Legic CRC8 over given hexbytes"}, | |
52cf34c1 | 1013 | {NULL, NULL, 0, NULL} |
1014 | }; | |
1015 | ||
1016 | int CmdHFLegic(const char *Cmd) { | |
1017 | clearCommandBuffer(); | |
1018 | CmdsParse(CommandTable, Cmd); | |
1019 | return 0; | |
1020 | } | |
1021 | ||
1022 | int CmdHelp(const char *Cmd) { | |
1023 | CmdsHelp(CommandTable); | |
1024 | return 0; | |
1025 | } |