| 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 | // Low frequency commands |
| 9 | //----------------------------------------------------------------------------- |
| 10 | #include "cmdlf.h" |
| 11 | |
| 12 | bool g_lf_threshold_set = FALSE; |
| 13 | |
| 14 | static int CmdHelp(const char *Cmd); |
| 15 | |
| 16 | int usage_lf_cmdread(void) { |
| 17 | PrintAndLog("Usage: lf cmdread d <delay period> z <zero period> o <one period> c <cmdbytes> [H]"); |
| 18 | PrintAndLog("Options:"); |
| 19 | PrintAndLog(" h This help"); |
| 20 | PrintAndLog(" L Low frequency (125 KHz)"); |
| 21 | PrintAndLog(" H High frequency (134 KHz)"); |
| 22 | PrintAndLog(" d <delay> delay OFF period, (decimal)"); |
| 23 | PrintAndLog(" z <zero> time period ZERO, (decimal)"); |
| 24 | PrintAndLog(" o <one> time period ONE, (decimal)"); |
| 25 | PrintAndLog(" c <cmd> Command bytes (in ones and zeros)"); |
| 26 | PrintAndLog(" ************* All periods in microseconds (ms)"); |
| 27 | PrintAndLog("Examples:"); |
| 28 | PrintAndLog(" lf cmdread d 80 z 100 o 200 c 11000"); |
| 29 | PrintAndLog(" lf cmdread d 80 z 100 o 100 c 11000 H"); |
| 30 | return 0; |
| 31 | } |
| 32 | int usage_lf_read(void){ |
| 33 | PrintAndLog("Usage: lf read [h] [s]"); |
| 34 | PrintAndLog("Options:"); |
| 35 | PrintAndLog(" h This help"); |
| 36 | PrintAndLog(" s silent run no printout"); |
| 37 | PrintAndLog("Use 'lf config' to set parameters."); |
| 38 | return 0; |
| 39 | } |
| 40 | int usage_lf_snoop(void) { |
| 41 | PrintAndLog("Snoop low frequence signal. Use 'lf config' to set parameters."); |
| 42 | PrintAndLog("Usage: lf snoop [h]"); |
| 43 | PrintAndLog("Options:"); |
| 44 | PrintAndLog(" h This help"); |
| 45 | return 0; |
| 46 | } |
| 47 | int usage_lf_config(void) { |
| 48 | PrintAndLog("Usage: lf config [h] [H|<divisor>] [b <bps>] [d <decim>] [a 0|1]"); |
| 49 | PrintAndLog("Options:"); |
| 50 | PrintAndLog(" h This help"); |
| 51 | PrintAndLog(" L Low frequency (125 KHz)"); |
| 52 | PrintAndLog(" H High frequency (134 KHz)"); |
| 53 | PrintAndLog(" q <divisor> Manually set divisor. 88-> 134KHz, 95-> 125 Hz"); |
| 54 | PrintAndLog(" b <bps> Sets resolution of bits per sample. Default (max): 8"); |
| 55 | PrintAndLog(" d <decim> Sets decimation. A value of N saves only 1 in N samples. Default: 1"); |
| 56 | PrintAndLog(" a [0|1] Averaging - if set, will average the stored sample value when decimating. Default: 1"); |
| 57 | PrintAndLog(" t <threshold> Sets trigger threshold. 0 means no threshold (range: 0-128)"); |
| 58 | PrintAndLog("Examples:"); |
| 59 | PrintAndLog(" lf config b 8 L"); |
| 60 | PrintAndLog(" Samples at 125KHz, 8bps."); |
| 61 | PrintAndLog(" lf config H b 4 d 3"); |
| 62 | PrintAndLog(" Samples at 134KHz, averages three samples into one, stored with "); |
| 63 | PrintAndLog(" a resolution of 4 bits per sample."); |
| 64 | PrintAndLog(" lf read"); |
| 65 | PrintAndLog(" Performs a read (active field)"); |
| 66 | PrintAndLog(" lf snoop"); |
| 67 | PrintAndLog(" Performs a snoop (no active field)"); |
| 68 | return 0; |
| 69 | } |
| 70 | int usage_lf_simfsk(void) { |
| 71 | PrintAndLog("Usage: lf simfsk [c <clock>] [i] [H <fcHigh>] [L <fcLow>] [d <hexdata>]"); |
| 72 | PrintAndLog("Options:"); |
| 73 | PrintAndLog(" h This help"); |
| 74 | PrintAndLog(" c <clock> Manually set clock - can autodetect if using DemodBuffer"); |
| 75 | PrintAndLog(" i invert data"); |
| 76 | PrintAndLog(" H <fcHigh> Manually set the larger Field Clock"); |
| 77 | PrintAndLog(" L <fcLow> Manually set the smaller Field Clock"); |
| 78 | //PrintAndLog(" s TBD- -to enable a gap between playback repetitions - default: no gap"); |
| 79 | PrintAndLog(" d <hexdata> Data to sim as hex - omit to sim from DemodBuffer"); |
| 80 | PrintAndLog("\n NOTE: if you set one clock manually set them all manually"); |
| 81 | return 0; |
| 82 | } |
| 83 | int usage_lf_simask(void) { |
| 84 | PrintAndLog("Usage: lf simask [c <clock>] [i] [b|m|r] [s] [d <raw hex to sim>]"); |
| 85 | PrintAndLog("Options:"); |
| 86 | PrintAndLog(" h This help"); |
| 87 | PrintAndLog(" c <clock> Manually set clock - can autodetect if using DemodBuffer"); |
| 88 | PrintAndLog(" i invert data"); |
| 89 | PrintAndLog(" b sim ask/biphase"); |
| 90 | PrintAndLog(" m sim ask/manchester - Default"); |
| 91 | PrintAndLog(" r sim ask/raw"); |
| 92 | PrintAndLog(" s add t55xx Sequence Terminator gap - default: no gaps (only manchester)"); |
| 93 | PrintAndLog(" d <hexdata> Data to sim as hex - omit to sim from DemodBuffer"); |
| 94 | return 0; |
| 95 | } |
| 96 | int usage_lf_simpsk(void) { |
| 97 | PrintAndLog("Usage: lf simpsk [1|2|3] [c <clock>] [i] [r <carrier>] [d <raw hex to sim>]"); |
| 98 | PrintAndLog("Options:"); |
| 99 | PrintAndLog(" h This help"); |
| 100 | PrintAndLog(" c <clock> Manually set clock - can autodetect if using DemodBuffer"); |
| 101 | PrintAndLog(" i invert data"); |
| 102 | PrintAndLog(" 1 set PSK1 (default)"); |
| 103 | PrintAndLog(" 2 set PSK2"); |
| 104 | PrintAndLog(" 3 set PSK3"); |
| 105 | PrintAndLog(" r <carrier> 2|4|8 are valid carriers: default = 2"); |
| 106 | PrintAndLog(" d <hexdata> Data to sim as hex - omit to sim from DemodBuffer"); |
| 107 | return 0; |
| 108 | } |
| 109 | int usage_lf_find(void){ |
| 110 | PrintAndLog("Usage: lf search [h] <0|1> [u]"); |
| 111 | PrintAndLog(""); |
| 112 | PrintAndLog("Options:"); |
| 113 | PrintAndLog(" h This help"); |
| 114 | PrintAndLog(" <0|1> Use data from Graphbuffer, if not set, try reading data from tag."); |
| 115 | PrintAndLog(" u Search for Unknown tags, if not set, reads only known tags."); |
| 116 | PrintAndLog("Examples:"); |
| 117 | PrintAndLog(" lf search = try reading data from tag & search for known tags"); |
| 118 | PrintAndLog(" lf search 1 = use data from GraphBuffer & search for known tags"); |
| 119 | PrintAndLog(" lf search u = try reading data from tag & search for known and unknown tags"); |
| 120 | PrintAndLog(" lf search 1 u = use data from GraphBuffer & search for known and unknown tags"); |
| 121 | return 0; |
| 122 | } |
| 123 | |
| 124 | |
| 125 | /* send a LF command before reading */ |
| 126 | int CmdLFCommandRead(const char *Cmd) { |
| 127 | |
| 128 | bool errors = FALSE; |
| 129 | bool useHighFreq = FALSE; |
| 130 | uint16_t one = 0, zero = 0; |
| 131 | uint8_t cmdp = 0; |
| 132 | UsbCommand c = {CMD_MOD_THEN_ACQUIRE_RAW_ADC_SAMPLES_125K, {0,0,0}}; |
| 133 | |
| 134 | while(param_getchar(Cmd, cmdp) != 0x00) { |
| 135 | switch(param_getchar(Cmd, cmdp)) { |
| 136 | case 'h': |
| 137 | return usage_lf_cmdread(); |
| 138 | case 'H': |
| 139 | useHighFreq = TRUE; |
| 140 | cmdp++; |
| 141 | break; |
| 142 | case 'L': |
| 143 | cmdp++; |
| 144 | break; |
| 145 | case 'c': |
| 146 | param_getstr(Cmd, cmdp+1, (char *)&c.d.asBytes); |
| 147 | cmdp+=2; |
| 148 | break; |
| 149 | case 'd': |
| 150 | c.arg[0] = param_get32ex(Cmd, cmdp+1, 0, 10); |
| 151 | cmdp+=2; |
| 152 | break; |
| 153 | case 'z': |
| 154 | zero = param_get32ex(Cmd, cmdp+1, 0, 10) & 0xFFFF; |
| 155 | cmdp+=2; |
| 156 | break; |
| 157 | case 'o': |
| 158 | one = param_get32ex(Cmd, cmdp+1, 0, 10) & 0xFFFF; |
| 159 | cmdp+=2; |
| 160 | break; |
| 161 | default: |
| 162 | PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); |
| 163 | errors = 1; |
| 164 | break; |
| 165 | } |
| 166 | if(errors) break; |
| 167 | } |
| 168 | // No args |
| 169 | if (cmdp == 0) errors = TRUE; |
| 170 | |
| 171 | //Validations |
| 172 | if (errors) return usage_lf_cmdread(); |
| 173 | |
| 174 | // zero and one lengths |
| 175 | c.arg[1] = (uint32_t)(zero << 16 | one); |
| 176 | |
| 177 | // add frequency 125 or 134 |
| 178 | c.arg[2] = useHighFreq; |
| 179 | |
| 180 | clearCommandBuffer(); |
| 181 | SendCommand(&c); |
| 182 | return 0; |
| 183 | } |
| 184 | |
| 185 | int CmdFlexdemod(const char *Cmd) |
| 186 | { |
| 187 | #define LONG_WAIT 100 |
| 188 | int i, j, start, bit, sum; |
| 189 | int phase = 0; |
| 190 | |
| 191 | for (i = 0; i < GraphTraceLen; ++i) |
| 192 | GraphBuffer[i] = (GraphBuffer[i] < 0) ? -1 : 1; |
| 193 | |
| 194 | for (start = 0; start < GraphTraceLen - LONG_WAIT; start++) { |
| 195 | int first = GraphBuffer[start]; |
| 196 | for (i = start; i < start + LONG_WAIT; i++) { |
| 197 | if (GraphBuffer[i] != first) { |
| 198 | break; |
| 199 | } |
| 200 | } |
| 201 | if (i == (start + LONG_WAIT)) |
| 202 | break; |
| 203 | } |
| 204 | |
| 205 | if (start == GraphTraceLen - LONG_WAIT) { |
| 206 | PrintAndLog("nothing to wait for"); |
| 207 | return 0; |
| 208 | } |
| 209 | |
| 210 | GraphBuffer[start] = 2; |
| 211 | GraphBuffer[start+1] = -2; |
| 212 | uint8_t bits[64] = {0x00}; |
| 213 | |
| 214 | i = start; |
| 215 | for (bit = 0; bit < 64; bit++) { |
| 216 | sum = 0; |
| 217 | for (int j = 0; j < 16; j++) { |
| 218 | sum += GraphBuffer[i++]; |
| 219 | } |
| 220 | bits[bit] = (sum > 0) ? 1 : 0; |
| 221 | PrintAndLog("bit %d sum %d", bit, sum); |
| 222 | } |
| 223 | |
| 224 | for (bit = 0; bit < 64; bit++) { |
| 225 | sum = 0; |
| 226 | for (j = 0; j < 16; j++) |
| 227 | sum += GraphBuffer[i++]; |
| 228 | |
| 229 | if (sum > 0 && bits[bit] != 1) PrintAndLog("oops1 at %d", bit); |
| 230 | |
| 231 | if (sum < 0 && bits[bit] != 0) PrintAndLog("oops2 at %d", bit); |
| 232 | |
| 233 | } |
| 234 | |
| 235 | // HACK writing back to graphbuffer. |
| 236 | GraphTraceLen = 32*64; |
| 237 | i = 0; |
| 238 | for (bit = 0; bit < 64; bit++) { |
| 239 | |
| 240 | phase = (bits[bit] == 0) ? 0 : 1; |
| 241 | |
| 242 | for (j = 0; j < 32; j++) { |
| 243 | GraphBuffer[i++] = phase; |
| 244 | phase = !phase; |
| 245 | } |
| 246 | } |
| 247 | RepaintGraphWindow(); |
| 248 | return 0; |
| 249 | } |
| 250 | |
| 251 | int CmdIndalaDemod(const char *Cmd) |
| 252 | { |
| 253 | // PSK1, Bitrate 32, |
| 254 | |
| 255 | // Usage: recover 64bit UID by default, specify "224" as arg to recover a 224bit UID |
| 256 | int state = -1; |
| 257 | int count = 0; |
| 258 | int i, j; |
| 259 | |
| 260 | // worst case with GraphTraceLen=64000 is < 4096 |
| 261 | // under normal conditions it's < 2048 |
| 262 | uint8_t rawbits[4096]; |
| 263 | |
| 264 | int rawbit = 0, worst = 0, worstPos = 0; |
| 265 | // PrintAndLog("Expecting a bit less than %d raw bits", GraphTraceLen / 32); |
| 266 | |
| 267 | // loop through raw signal - since we know it is psk1 rf/32 fc/2 skip every other value (+=2) |
| 268 | for (i = 0; i < GraphTraceLen-1; i += 2) { |
| 269 | count += 1; |
| 270 | if ((GraphBuffer[i] > GraphBuffer[i + 1]) && (state != 1)) { |
| 271 | // appears redundant - marshmellow |
| 272 | if (state == 0) { |
| 273 | for (j = 0; j < count - 8; j += 16) { |
| 274 | rawbits[rawbit++] = 0; |
| 275 | } |
| 276 | if ((abs(count - j)) > worst) { |
| 277 | worst = abs(count - j); |
| 278 | worstPos = i; |
| 279 | } |
| 280 | } |
| 281 | state = 1; |
| 282 | count = 0; |
| 283 | } else if ((GraphBuffer[i] < GraphBuffer[i + 1]) && (state != 0)) { |
| 284 | //appears redundant |
| 285 | if (state == 1) { |
| 286 | for (j = 0; j < count - 8; j += 16) { |
| 287 | rawbits[rawbit++] = 1; |
| 288 | } |
| 289 | if ((abs(count - j)) > worst) { |
| 290 | worst = abs(count - j); |
| 291 | worstPos = i; |
| 292 | } |
| 293 | } |
| 294 | state = 0; |
| 295 | count = 0; |
| 296 | } |
| 297 | } |
| 298 | if ( rawbit<1 ) return 0; |
| 299 | |
| 300 | if (g_debugMode) { |
| 301 | PrintAndLog("Recovered %d raw bits, expected: %d", rawbit, GraphTraceLen/32); |
| 302 | PrintAndLog("worst metric (0=best..7=worst): %d at pos %d", worst, worstPos); |
| 303 | } |
| 304 | |
| 305 | // Finding the start of a UID |
| 306 | int uidlen, long_wait; |
| 307 | if (strcmp(Cmd, "224") == 0) { |
| 308 | uidlen = 224; |
| 309 | long_wait = 30; |
| 310 | } else { |
| 311 | uidlen = 64; |
| 312 | long_wait = 29; |
| 313 | } |
| 314 | |
| 315 | int start; |
| 316 | int first = 0; |
| 317 | for (start = 0; start <= rawbit - uidlen; start++) { |
| 318 | first = rawbits[start]; |
| 319 | for (i = start; i < start + long_wait; i++) { |
| 320 | if (rawbits[i] != first) { |
| 321 | break; |
| 322 | } |
| 323 | } |
| 324 | if (i == (start + long_wait)) { |
| 325 | break; |
| 326 | } |
| 327 | } |
| 328 | |
| 329 | if (start == rawbit - uidlen + 1) { |
| 330 | if (g_debugMode) PrintAndLog("nothing to wait for"); |
| 331 | return 0; |
| 332 | } |
| 333 | |
| 334 | // Inverting signal if needed |
| 335 | if (first == 1) { |
| 336 | for (i = start; i < rawbit; i++) |
| 337 | rawbits[i] = !rawbits[i]; |
| 338 | } |
| 339 | |
| 340 | // Dumping UID |
| 341 | uint8_t bits[224] = {0x00}; |
| 342 | char showbits[225] = {0x00}; |
| 343 | int bit; |
| 344 | i = start; |
| 345 | int times = 0; |
| 346 | |
| 347 | if (uidlen > rawbit) { |
| 348 | PrintAndLog("Warning: not enough raw bits to get a full UID"); |
| 349 | for (bit = 0; bit < rawbit; bit++) { |
| 350 | bits[bit] = rawbits[i++]; |
| 351 | // As we cannot know the parity, let's use "." and "/" |
| 352 | showbits[bit] = '.' + bits[bit]; |
| 353 | } |
| 354 | showbits[bit+1]='\0'; |
| 355 | PrintAndLog("Partial UID=%s", showbits); |
| 356 | return 0; |
| 357 | } else { |
| 358 | for (bit = 0; bit < uidlen; bit++) { |
| 359 | bits[bit] = rawbits[i++]; |
| 360 | showbits[bit] = '0' + bits[bit]; |
| 361 | } |
| 362 | times = 1; |
| 363 | } |
| 364 | |
| 365 | //convert UID to HEX |
| 366 | uint32_t uid1, uid2, uid3, uid4, uid5, uid6, uid7; |
| 367 | int idx; |
| 368 | uid1 = uid2 = 0; |
| 369 | |
| 370 | if (uidlen==64){ |
| 371 | for( idx=0; idx<64; idx++) { |
| 372 | if (showbits[idx] == '0') { |
| 373 | uid1 = (uid1<<1) | (uid2>>31); |
| 374 | uid2 = (uid2<<1) | 0; |
| 375 | } else { |
| 376 | uid1 = (uid1<<1) | (uid2>>31); |
| 377 | uid2 = (uid2<<1) | 1; |
| 378 | } |
| 379 | } |
| 380 | PrintAndLog("UID=%s (%x%08x)", showbits, uid1, uid2); |
| 381 | } else { |
| 382 | uid3 = uid4 = uid5 = uid6 = uid7 = 0; |
| 383 | |
| 384 | for( idx=0; idx<224; idx++) { |
| 385 | uid1 = (uid1<<1) | (uid2>>31); |
| 386 | uid2 = (uid2<<1) | (uid3>>31); |
| 387 | uid3 = (uid3<<1) | (uid4>>31); |
| 388 | uid4 = (uid4<<1) | (uid5>>31); |
| 389 | uid5 = (uid5<<1) | (uid6>>31); |
| 390 | uid6 = (uid6<<1) | (uid7>>31); |
| 391 | |
| 392 | if (showbits[idx] == '0') |
| 393 | uid7 = (uid7<<1) | 0; |
| 394 | else |
| 395 | uid7 = (uid7<<1) | 1; |
| 396 | } |
| 397 | PrintAndLog("UID=%s (%x%08x%08x%08x%08x%08x%08x)", showbits, uid1, uid2, uid3, uid4, uid5, uid6, uid7); |
| 398 | } |
| 399 | |
| 400 | // Checking UID against next occurrences |
| 401 | int failed = 0; |
| 402 | for (; i + uidlen <= rawbit;) { |
| 403 | failed = 0; |
| 404 | for (bit = 0; bit < uidlen; bit++) { |
| 405 | if (bits[bit] != rawbits[i++]) { |
| 406 | failed = 1; |
| 407 | break; |
| 408 | } |
| 409 | } |
| 410 | if (failed == 1) { |
| 411 | break; |
| 412 | } |
| 413 | times += 1; |
| 414 | } |
| 415 | |
| 416 | if (g_debugMode) PrintAndLog("Occurrences: %d (expected %d)", times, (rawbit - start) / uidlen); |
| 417 | |
| 418 | // Remodulating for tag cloning |
| 419 | // HACK: 2015-01-04 this will have an impact on our new way of seening lf commands (demod) |
| 420 | // since this changes graphbuffer data. |
| 421 | GraphTraceLen = 32 * uidlen; |
| 422 | i = 0; |
| 423 | int phase = 0; |
| 424 | for (bit = 0; bit < uidlen; bit++) { |
| 425 | phase = (bits[bit] == 0) ? 0 : 1; |
| 426 | int j; |
| 427 | for (j = 0; j < 32; j++) { |
| 428 | GraphBuffer[i++] = phase; |
| 429 | phase = !phase; |
| 430 | } |
| 431 | } |
| 432 | |
| 433 | RepaintGraphWindow(); |
| 434 | return 1; |
| 435 | } |
| 436 | |
| 437 | int CmdIndalaClone(const char *Cmd){ |
| 438 | UsbCommand c; |
| 439 | unsigned int uid1, uid2, uid3, uid4, uid5, uid6, uid7; |
| 440 | |
| 441 | uid1 = uid2 = uid3 = uid4 = uid5 = uid6 = uid7 = 0; |
| 442 | int n = 0, i = 0; |
| 443 | |
| 444 | if (strchr(Cmd,'l') != 0) { |
| 445 | while (sscanf(&Cmd[i++], "%1x", &n ) == 1) { |
| 446 | uid1 = (uid1 << 4) | (uid2 >> 28); |
| 447 | uid2 = (uid2 << 4) | (uid3 >> 28); |
| 448 | uid3 = (uid3 << 4) | (uid4 >> 28); |
| 449 | uid4 = (uid4 << 4) | (uid5 >> 28); |
| 450 | uid5 = (uid5 << 4) | (uid6 >> 28); |
| 451 | uid6 = (uid6 << 4) | (uid7 >> 28); |
| 452 | uid7 = (uid7 << 4) | (n & 0xf); |
| 453 | } |
| 454 | PrintAndLog("Cloning 224bit tag with UID %x%08x%08x%08x%08x%08x%08x", uid1, uid2, uid3, uid4, uid5, uid6, uid7); |
| 455 | c.cmd = CMD_INDALA_CLONE_TAG_L; |
| 456 | c.d.asDwords[0] = uid1; |
| 457 | c.d.asDwords[1] = uid2; |
| 458 | c.d.asDwords[2] = uid3; |
| 459 | c.d.asDwords[3] = uid4; |
| 460 | c.d.asDwords[4] = uid5; |
| 461 | c.d.asDwords[5] = uid6; |
| 462 | c.d.asDwords[6] = uid7; |
| 463 | } else { |
| 464 | while (sscanf(&Cmd[i++], "%1x", &n ) == 1) { |
| 465 | uid1 = (uid1 << 4) | (uid2 >> 28); |
| 466 | uid2 = (uid2 << 4) | (n & 0xf); |
| 467 | } |
| 468 | PrintAndLog("Cloning 64bit tag with UID %x%08x", uid1, uid2); |
| 469 | c.cmd = CMD_INDALA_CLONE_TAG; |
| 470 | c.arg[0] = uid1; |
| 471 | c.arg[1] = uid2; |
| 472 | } |
| 473 | |
| 474 | clearCommandBuffer(); |
| 475 | SendCommand(&c); |
| 476 | return 0; |
| 477 | } |
| 478 | |
| 479 | int CmdLFSetConfig(const char *Cmd) { |
| 480 | uint8_t divisor = 0;//Frequency divisor |
| 481 | uint8_t bps = 0; // Bits per sample |
| 482 | uint8_t decimation = 0; //How many to keep |
| 483 | bool averaging = 1; // Defaults to true |
| 484 | bool errors = FALSE; |
| 485 | int trigger_threshold = -1;//Means no change |
| 486 | uint8_t unsigned_trigg = 0; |
| 487 | |
| 488 | uint8_t cmdp = 0; |
| 489 | while(param_getchar(Cmd, cmdp) != 0x00) { |
| 490 | switch(param_getchar(Cmd, cmdp)) { |
| 491 | case 'h': |
| 492 | return usage_lf_config(); |
| 493 | case 'H': |
| 494 | divisor = 88; |
| 495 | cmdp++; |
| 496 | break; |
| 497 | case 'L': |
| 498 | divisor = 95; |
| 499 | cmdp++; |
| 500 | break; |
| 501 | case 'q': |
| 502 | errors |= param_getdec(Cmd, cmdp+1, &divisor); |
| 503 | cmdp+=2; |
| 504 | break; |
| 505 | case 't': |
| 506 | errors |= param_getdec(Cmd, cmdp+1, &unsigned_trigg); |
| 507 | cmdp+=2; |
| 508 | if(!errors) { |
| 509 | trigger_threshold = unsigned_trigg; |
| 510 | g_lf_threshold_set = (trigger_threshold > 0); |
| 511 | } |
| 512 | break; |
| 513 | case 'b': |
| 514 | errors |= param_getdec(Cmd, cmdp+1, &bps); |
| 515 | cmdp+=2; |
| 516 | break; |
| 517 | case 'd': |
| 518 | errors |= param_getdec(Cmd, cmdp+1, &decimation); |
| 519 | cmdp+=2; |
| 520 | break; |
| 521 | case 'a': |
| 522 | averaging = param_getchar(Cmd, cmdp+1) == '1'; |
| 523 | cmdp+=2; |
| 524 | break; |
| 525 | default: |
| 526 | PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); |
| 527 | errors = 1; |
| 528 | break; |
| 529 | } |
| 530 | if(errors) break; |
| 531 | } |
| 532 | |
| 533 | // No args |
| 534 | if (cmdp == 0) errors = 1; |
| 535 | |
| 536 | //Validations |
| 537 | if (errors) return usage_lf_config(); |
| 538 | |
| 539 | //Bps is limited to 8 |
| 540 | if (bps >> 4) bps = 8; |
| 541 | |
| 542 | sample_config config = { decimation, bps, averaging, divisor, trigger_threshold }; |
| 543 | |
| 544 | UsbCommand c = {CMD_SET_LF_SAMPLING_CONFIG, {0,0,0} }; |
| 545 | memcpy(c.d.asBytes, &config, sizeof(sample_config)); |
| 546 | clearCommandBuffer(); |
| 547 | SendCommand(&c); |
| 548 | return 0; |
| 549 | } |
| 550 | |
| 551 | int CmdLFRead(const char *Cmd) { |
| 552 | |
| 553 | if (offline) return 0; |
| 554 | |
| 555 | bool errors = FALSE; |
| 556 | bool arg1 = FALSE; |
| 557 | uint8_t cmdp = 0; |
| 558 | while(param_getchar(Cmd, cmdp) != 0x00) { |
| 559 | switch(param_getchar(Cmd, cmdp)) { |
| 560 | case 'h': |
| 561 | case 'H': |
| 562 | return usage_lf_read(); |
| 563 | case 's': |
| 564 | case 'S': |
| 565 | arg1 = TRUE; |
| 566 | cmdp++; |
| 567 | break; |
| 568 | default: |
| 569 | PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); |
| 570 | errors = TRUE; |
| 571 | break; |
| 572 | } |
| 573 | if(errors) break; |
| 574 | } |
| 575 | |
| 576 | //Validations |
| 577 | if (errors) return usage_lf_read(); |
| 578 | |
| 579 | UsbCommand c = {CMD_ACQUIRE_RAW_ADC_SAMPLES_125K, {arg1,0,0}}; |
| 580 | clearCommandBuffer(); |
| 581 | SendCommand(&c); |
| 582 | if ( g_lf_threshold_set ) { |
| 583 | WaitForResponse(CMD_ACK,NULL); |
| 584 | } else { |
| 585 | if ( !WaitForResponseTimeout(CMD_ACK, NULL ,2500) ) { |
| 586 | PrintAndLog("command execution time out"); |
| 587 | return 1; |
| 588 | } |
| 589 | } |
| 590 | return 0; |
| 591 | } |
| 592 | |
| 593 | int CmdLFSnoop(const char *Cmd) { |
| 594 | uint8_t cmdp = param_getchar(Cmd, 0); |
| 595 | if(cmdp == 'h' || cmdp == 'H') return usage_lf_snoop(); |
| 596 | |
| 597 | UsbCommand c = {CMD_LF_SNOOP_RAW_ADC_SAMPLES,{0,0,0}}; |
| 598 | clearCommandBuffer(); |
| 599 | SendCommand(&c); |
| 600 | WaitForResponse(CMD_ACK,NULL); |
| 601 | getSamples("", false); |
| 602 | return 0; |
| 603 | } |
| 604 | |
| 605 | static void ChkBitstream(const char *str) { |
| 606 | // convert to bitstream if necessary |
| 607 | for (int i = 0; i < (int)(GraphTraceLen / 2); i++){ |
| 608 | if (GraphBuffer[i] > 1 || GraphBuffer[i] < 0) { |
| 609 | CmdGetBitStream(""); |
| 610 | break; |
| 611 | } |
| 612 | } |
| 613 | } |
| 614 | //Attempt to simulate any wave in buffer (one bit per output sample) |
| 615 | // converts GraphBuffer to bitstream (based on zero crossings) if needed. |
| 616 | int CmdLFSim(const char *Cmd) { |
| 617 | int i,j; |
| 618 | static int gap; |
| 619 | |
| 620 | sscanf(Cmd, "%i", &gap); |
| 621 | |
| 622 | // convert to bitstream if necessary |
| 623 | ChkBitstream(Cmd); |
| 624 | |
| 625 | if (g_debugMode) |
| 626 | printf("DEBUG: Sending [%d bytes]\n", GraphTraceLen); |
| 627 | |
| 628 | //can send only 512 bits at a time (1 byte sent per bit...) |
| 629 | for (i = 0; i < GraphTraceLen; i += USB_CMD_DATA_SIZE) { |
| 630 | UsbCommand c = {CMD_DOWNLOADED_SIM_SAMPLES_125K, {i, 0, 0}}; |
| 631 | |
| 632 | for (j = 0; j < USB_CMD_DATA_SIZE; j++) |
| 633 | c.d.asBytes[j] = GraphBuffer[i+j]; |
| 634 | |
| 635 | clearCommandBuffer(); |
| 636 | SendCommand(&c); |
| 637 | WaitForResponse(CMD_ACK, NULL); |
| 638 | printf("."); |
| 639 | } |
| 640 | |
| 641 | PrintAndLog("Simulating"); |
| 642 | |
| 643 | UsbCommand c = {CMD_SIMULATE_TAG_125K, {GraphTraceLen, gap, 0}}; |
| 644 | clearCommandBuffer(); |
| 645 | SendCommand(&c); |
| 646 | return 0; |
| 647 | } |
| 648 | |
| 649 | // by marshmellow - sim fsk data given clock, fcHigh, fcLow, invert |
| 650 | // - allow pull data from DemodBuffer |
| 651 | int CmdLFfskSim(const char *Cmd) |
| 652 | { |
| 653 | //might be able to autodetect FCs and clock from Graphbuffer if using demod buffer |
| 654 | // otherwise will need FChigh, FClow, Clock, and bitstream |
| 655 | uint8_t fcHigh = 0, fcLow = 0, clk = 0; |
| 656 | uint8_t invert = 0; |
| 657 | bool errors = FALSE; |
| 658 | char hexData[32] = {0x00}; // store entered hex data |
| 659 | uint8_t data[255] = {0x00}; |
| 660 | int dataLen = 0; |
| 661 | uint8_t cmdp = 0; |
| 662 | |
| 663 | while(param_getchar(Cmd, cmdp) != 0x00) { |
| 664 | switch(param_getchar(Cmd, cmdp)){ |
| 665 | case 'h': |
| 666 | return usage_lf_simfsk(); |
| 667 | case 'i': |
| 668 | invert = 1; |
| 669 | cmdp++; |
| 670 | break; |
| 671 | case 'c': |
| 672 | errors |= param_getdec(Cmd, cmdp+1, &clk); |
| 673 | cmdp += 2; |
| 674 | break; |
| 675 | case 'H': |
| 676 | errors |= param_getdec(Cmd, cmdp+1, &fcHigh); |
| 677 | cmdp += 2; |
| 678 | break; |
| 679 | case 'L': |
| 680 | errors |= param_getdec(Cmd, cmdp+1, &fcLow); |
| 681 | cmdp += 2; |
| 682 | break; |
| 683 | //case 's': |
| 684 | // separator = 1; |
| 685 | // cmdp++; |
| 686 | // break; |
| 687 | case 'd': |
| 688 | dataLen = param_getstr(Cmd, cmdp+1, hexData); |
| 689 | if (dataLen == 0) |
| 690 | errors = TRUE; |
| 691 | else |
| 692 | dataLen = hextobinarray((char *)data, hexData); |
| 693 | |
| 694 | if (dataLen == 0) errors = TRUE; |
| 695 | if (errors) PrintAndLog ("Error getting hex data"); |
| 696 | cmdp+=2; |
| 697 | break; |
| 698 | default: |
| 699 | PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); |
| 700 | errors = TRUE; |
| 701 | break; |
| 702 | } |
| 703 | if(errors) break; |
| 704 | } |
| 705 | |
| 706 | // No args |
| 707 | if(cmdp == 0 && DemodBufferLen == 0) |
| 708 | errors = TRUE; |
| 709 | |
| 710 | //Validations |
| 711 | if(errors) return usage_lf_simfsk(); |
| 712 | |
| 713 | if (dataLen == 0){ //using DemodBuffer |
| 714 | if (clk == 0 || fcHigh == 0 || fcLow == 0){ //manual settings must set them all |
| 715 | uint8_t ans = fskClocks(&fcHigh, &fcLow, &clk, 0); |
| 716 | if (ans==0){ |
| 717 | if (!fcHigh) fcHigh = 10; |
| 718 | if (!fcLow) fcLow = 8; |
| 719 | if (!clk) clk = 50; |
| 720 | } |
| 721 | } |
| 722 | } else { |
| 723 | setDemodBuf(data, dataLen, 0); |
| 724 | } |
| 725 | |
| 726 | //default if not found |
| 727 | if (clk == 0) clk = 50; |
| 728 | if (fcHigh == 0) fcHigh = 10; |
| 729 | if (fcLow == 0) fcLow = 8; |
| 730 | |
| 731 | uint16_t arg1, arg2; |
| 732 | arg1 = fcHigh << 8 | fcLow; |
| 733 | arg2 = invert << 8 | clk; |
| 734 | size_t size = DemodBufferLen; |
| 735 | if (size > USB_CMD_DATA_SIZE) { |
| 736 | PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE); |
| 737 | size = USB_CMD_DATA_SIZE; |
| 738 | } |
| 739 | UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}}; |
| 740 | |
| 741 | memcpy(c.d.asBytes, DemodBuffer, size); |
| 742 | clearCommandBuffer(); |
| 743 | SendCommand(&c); |
| 744 | return 0; |
| 745 | } |
| 746 | |
| 747 | // by marshmellow - sim ask data given clock, invert, manchester or raw, separator |
| 748 | // - allow pull data from DemodBuffer |
| 749 | int CmdLFaskSim(const char *Cmd) |
| 750 | { |
| 751 | // autodetect clock from Graphbuffer if using demod buffer |
| 752 | // needs clock, invert, manchester/raw as m or r, separator as s, and bitstream |
| 753 | uint8_t encoding = 1, separator = 0, clk = 0, invert = 0; |
| 754 | bool errors = FALSE; |
| 755 | char hexData[32] = {0x00}; |
| 756 | uint8_t data[255]= {0x00}; // store entered hex data |
| 757 | int dataLen = 0; |
| 758 | uint8_t cmdp = 0; |
| 759 | |
| 760 | while(param_getchar(Cmd, cmdp) != 0x00) { |
| 761 | switch(param_getchar(Cmd, cmdp)) { |
| 762 | case 'H': |
| 763 | case 'h': return usage_lf_simask(); |
| 764 | case 'i': |
| 765 | invert = 1; |
| 766 | cmdp++; |
| 767 | break; |
| 768 | case 'c': |
| 769 | errors |= param_getdec(Cmd, cmdp+1, &clk); |
| 770 | cmdp += 2; |
| 771 | break; |
| 772 | case 'b': |
| 773 | encoding = 2; //biphase |
| 774 | cmdp++; |
| 775 | break; |
| 776 | case 'm': |
| 777 | encoding = 1; //manchester |
| 778 | cmdp++; |
| 779 | break; |
| 780 | case 'r': |
| 781 | encoding = 0; //raw |
| 782 | cmdp++; |
| 783 | break; |
| 784 | case 's': |
| 785 | separator = 1; |
| 786 | cmdp++; |
| 787 | break; |
| 788 | case 'd': |
| 789 | dataLen = param_getstr(Cmd, cmdp+1, hexData); |
| 790 | if (dataLen == 0) |
| 791 | errors = TRUE; |
| 792 | else |
| 793 | dataLen = hextobinarray((char *)data, hexData); |
| 794 | |
| 795 | if (dataLen == 0) errors = TRUE; |
| 796 | if (errors) PrintAndLog ("Error getting hex data, datalen: %d", dataLen); |
| 797 | cmdp += 2; |
| 798 | break; |
| 799 | default: |
| 800 | PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); |
| 801 | errors = TRUE; |
| 802 | break; |
| 803 | } |
| 804 | if(errors) break; |
| 805 | } |
| 806 | |
| 807 | // No args |
| 808 | if(cmdp == 0 && DemodBufferLen == 0) |
| 809 | errors = TRUE; |
| 810 | |
| 811 | //Validations |
| 812 | if(errors) return usage_lf_simask(); |
| 813 | |
| 814 | if (dataLen == 0){ //using DemodBuffer |
| 815 | if (clk == 0) |
| 816 | clk = GetAskClock("0", false, false); |
| 817 | } else { |
| 818 | setDemodBuf(data, dataLen, 0); |
| 819 | } |
| 820 | if (clk == 0) clk = 64; |
| 821 | if (encoding == 0) clk >>= 2; //askraw needs to double the clock speed |
| 822 | |
| 823 | size_t size = DemodBufferLen; |
| 824 | |
| 825 | if (size > USB_CMD_DATA_SIZE) { |
| 826 | PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE); |
| 827 | size = USB_CMD_DATA_SIZE; |
| 828 | } |
| 829 | |
| 830 | PrintAndLog("preparing to sim ask data: %d bits", size); |
| 831 | |
| 832 | uint16_t arg1, arg2; |
| 833 | arg1 = clk << 8 | encoding; |
| 834 | arg2 = invert << 8 | separator; |
| 835 | |
| 836 | UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}}; |
| 837 | memcpy(c.d.asBytes, DemodBuffer, size); |
| 838 | clearCommandBuffer(); |
| 839 | SendCommand(&c); |
| 840 | return 0; |
| 841 | } |
| 842 | |
| 843 | // by marshmellow - sim psk data given carrier, clock, invert |
| 844 | // - allow pull data from DemodBuffer or parameters |
| 845 | int CmdLFpskSim(const char *Cmd) { |
| 846 | //might be able to autodetect FC and clock from Graphbuffer if using demod buffer |
| 847 | //will need carrier, Clock, and bitstream |
| 848 | uint8_t carrier=0, clk=0; |
| 849 | uint8_t invert=0; |
| 850 | bool errors = FALSE; |
| 851 | char hexData[32] = {0x00}; // store entered hex data |
| 852 | uint8_t data[255] = {0x00}; |
| 853 | int dataLen = 0; |
| 854 | uint8_t cmdp = 0; |
| 855 | uint8_t pskType = 1; |
| 856 | |
| 857 | while(param_getchar(Cmd, cmdp) != 0x00) { |
| 858 | switch(param_getchar(Cmd, cmdp)) { |
| 859 | case 'h': |
| 860 | return usage_lf_simpsk(); |
| 861 | case 'i': |
| 862 | invert = 1; |
| 863 | cmdp++; |
| 864 | break; |
| 865 | case 'c': |
| 866 | errors |= param_getdec(Cmd,cmdp+1,&clk); |
| 867 | cmdp +=2; |
| 868 | break; |
| 869 | case 'r': |
| 870 | errors |= param_getdec(Cmd,cmdp+1,&carrier); |
| 871 | cmdp += 2; |
| 872 | break; |
| 873 | case '1': |
| 874 | pskType = 1; |
| 875 | cmdp++; |
| 876 | break; |
| 877 | case '2': |
| 878 | pskType = 2; |
| 879 | cmdp++; |
| 880 | break; |
| 881 | case '3': |
| 882 | pskType = 3; |
| 883 | cmdp++; |
| 884 | break; |
| 885 | case 'd': |
| 886 | dataLen = param_getstr(Cmd, cmdp+1, hexData); |
| 887 | if (dataLen == 0) |
| 888 | errors = TRUE; |
| 889 | else |
| 890 | dataLen = hextobinarray((char *)data, hexData); |
| 891 | |
| 892 | if (dataLen == 0) errors = TRUE; |
| 893 | if (errors) PrintAndLog ("Error getting hex data"); |
| 894 | cmdp+=2; |
| 895 | break; |
| 896 | default: |
| 897 | PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp)); |
| 898 | errors = TRUE; |
| 899 | break; |
| 900 | } |
| 901 | if (errors) break; |
| 902 | } |
| 903 | // No args |
| 904 | if (cmdp == 0 && DemodBufferLen == 0) |
| 905 | errors = TRUE; |
| 906 | |
| 907 | //Validations |
| 908 | if (errors) return usage_lf_simpsk(); |
| 909 | |
| 910 | if (dataLen == 0){ //using DemodBuffer |
| 911 | PrintAndLog("Getting Clocks"); |
| 912 | |
| 913 | if (clk==0) clk = GetPskClock("", FALSE, FALSE); |
| 914 | PrintAndLog("clk: %d",clk); |
| 915 | |
| 916 | if (!carrier) carrier = GetPskCarrier("", FALSE, FALSE); |
| 917 | PrintAndLog("carrier: %d", carrier); |
| 918 | |
| 919 | } else { |
| 920 | setDemodBuf(data, dataLen, 0); |
| 921 | } |
| 922 | |
| 923 | if (clk <= 0) clk = 32; |
| 924 | |
| 925 | if (carrier == 0) carrier = 2; |
| 926 | |
| 927 | if (pskType != 1){ |
| 928 | if (pskType == 2){ |
| 929 | //need to convert psk2 to psk1 data before sim |
| 930 | psk2TOpsk1(DemodBuffer, DemodBufferLen); |
| 931 | } else { |
| 932 | PrintAndLog("Sorry, PSK3 not yet available"); |
| 933 | } |
| 934 | } |
| 935 | uint16_t arg1, arg2; |
| 936 | arg1 = clk << 8 | carrier; |
| 937 | arg2 = invert; |
| 938 | size_t size = DemodBufferLen; |
| 939 | if (size > USB_CMD_DATA_SIZE) { |
| 940 | PrintAndLog("DemodBuffer too long for current implementation - length: %d - max: %d", size, USB_CMD_DATA_SIZE); |
| 941 | size = USB_CMD_DATA_SIZE; |
| 942 | } |
| 943 | UsbCommand c = {CMD_PSK_SIM_TAG, {arg1, arg2, size}}; |
| 944 | PrintAndLog("DEBUG: Sending DemodBuffer Length: %d", size); |
| 945 | memcpy(c.d.asBytes, DemodBuffer, size); |
| 946 | clearCommandBuffer(); |
| 947 | SendCommand(&c); |
| 948 | return 0; |
| 949 | } |
| 950 | |
| 951 | int CmdLFSimBidir(const char *Cmd) { |
| 952 | // Set ADC to twice the carrier for a slight supersampling |
| 953 | // HACK: not implemented in ARMSRC. |
| 954 | PrintAndLog("Not implemented yet."); |
| 955 | UsbCommand c = {CMD_LF_SIMULATE_BIDIR, {47, 384, 0}}; |
| 956 | SendCommand(&c); |
| 957 | return 0; |
| 958 | } |
| 959 | |
| 960 | int CmdVchDemod(const char *Cmd) { |
| 961 | // Is this the entire sync pattern, or does this also include some |
| 962 | // data bits that happen to be the same everywhere? That would be |
| 963 | // lovely to know. |
| 964 | static const int SyncPattern[] = { |
| 965 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 966 | 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, |
| 967 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 968 | 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, |
| 969 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 970 | 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, |
| 971 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 972 | 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, |
| 973 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 974 | 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, |
| 975 | }; |
| 976 | |
| 977 | // So first, we correlate for the sync pattern, and mark that. |
| 978 | int bestCorrel = 0, bestPos = 0; |
| 979 | int i, j, sum = 0; |
| 980 | |
| 981 | // It does us no good to find the sync pattern, with fewer than 2048 samples after it. |
| 982 | |
| 983 | for (i = 0; i < (GraphTraceLen - 2048); i++) { |
| 984 | for (j = 0; j < ARRAYLEN(SyncPattern); j++) { |
| 985 | sum += GraphBuffer[i+j] * SyncPattern[j]; |
| 986 | } |
| 987 | if (sum > bestCorrel) { |
| 988 | bestCorrel = sum; |
| 989 | bestPos = i; |
| 990 | } |
| 991 | } |
| 992 | PrintAndLog("best sync at %d [metric %d]", bestPos, bestCorrel); |
| 993 | |
| 994 | char bits[257]; |
| 995 | bits[256] = '\0'; |
| 996 | |
| 997 | int worst = INT_MAX, worstPos = 0; |
| 998 | |
| 999 | for (i = 0; i < 2048; i += 8) { |
| 1000 | sum = 0; |
| 1001 | for (j = 0; j < 8; j++) |
| 1002 | sum += GraphBuffer[bestPos+i+j]; |
| 1003 | |
| 1004 | if (sum < 0) |
| 1005 | bits[i/8] = '.'; |
| 1006 | else |
| 1007 | bits[i/8] = '1'; |
| 1008 | |
| 1009 | if(abs(sum) < worst) { |
| 1010 | worst = abs(sum); |
| 1011 | worstPos = i; |
| 1012 | } |
| 1013 | } |
| 1014 | PrintAndLog("bits:"); |
| 1015 | PrintAndLog("%s", bits); |
| 1016 | PrintAndLog("worst metric: %d at pos %d", worst, worstPos); |
| 1017 | |
| 1018 | // clone |
| 1019 | if (strcmp(Cmd, "clone")==0) { |
| 1020 | GraphTraceLen = 0; |
| 1021 | char *s; |
| 1022 | for(s = bits; *s; s++) { |
| 1023 | for(j = 0; j < 16; j++) { |
| 1024 | GraphBuffer[GraphTraceLen++] = (*s == '1') ? 1 : 0; |
| 1025 | } |
| 1026 | } |
| 1027 | RepaintGraphWindow(); |
| 1028 | } |
| 1029 | return 0; |
| 1030 | } |
| 1031 | |
| 1032 | |
| 1033 | //by marshmellow |
| 1034 | int CheckChipset(bool getDeviceData) { |
| 1035 | |
| 1036 | if (!getDeviceData) return 0; |
| 1037 | |
| 1038 | uint32_t word = 0; |
| 1039 | save_restoreGB(1); |
| 1040 | |
| 1041 | //check for em4x05/em4x69 chips first |
| 1042 | if (EM4x05IsBlock0(&word)) { |
| 1043 | save_restoreGB(0); |
| 1044 | PrintAndLog("\nValid EM4x05/EM4x69 Chipset found\nTry `lf em 4x05` commands\n"); |
| 1045 | return 1; |
| 1046 | } |
| 1047 | |
| 1048 | //TODO check for t55xx chip... |
| 1049 | // if ( t55xxIsBlock0(() { |
| 1050 | // save_restoreGB(0); |
| 1051 | // PrintAndLog("\nValid T55xx Chipset found\nTry `lf t55xx` commands\n"); |
| 1052 | // return 1; |
| 1053 | // } |
| 1054 | |
| 1055 | save_restoreGB(0); |
| 1056 | return 0; |
| 1057 | } |
| 1058 | |
| 1059 | //by marshmellow |
| 1060 | int CmdLFfind(const char *Cmd) { |
| 1061 | int ans = 0; |
| 1062 | size_t minLength = 1000; |
| 1063 | char cmdp = param_getchar(Cmd, 0); |
| 1064 | char testRaw = param_getchar(Cmd, 1); |
| 1065 | if (strlen(Cmd) > 3 || cmdp == 'h' || cmdp == 'H') return usage_lf_find(); |
| 1066 | |
| 1067 | bool getDeviceData = (!offline && (cmdp != '1') ); |
| 1068 | |
| 1069 | if (getDeviceData) { |
| 1070 | CmdLFRead("s"); |
| 1071 | getSamples("30000", false); |
| 1072 | } else if (GraphTraceLen < minLength) { |
| 1073 | PrintAndLog("Data in Graphbuffer was too small."); |
| 1074 | return 0; |
| 1075 | } |
| 1076 | if (cmdp == 'u' || cmdp == 'U') testRaw = 'u'; |
| 1077 | |
| 1078 | PrintAndLog("NOTE: some demods output possible binary\n if it finds something that looks like a tag"); |
| 1079 | PrintAndLog("False Positives ARE possible\n"); |
| 1080 | PrintAndLog("\nChecking for known tags:\n"); |
| 1081 | |
| 1082 | size_t testLen = minLength; |
| 1083 | |
| 1084 | // only run these tests if device is online |
| 1085 | if (getDeviceData) { |
| 1086 | |
| 1087 | // only run if graphbuffer is just noise as it should be for hitag/cotag |
| 1088 | if (graphJustNoise(GraphBuffer, testLen)) { |
| 1089 | |
| 1090 | if (CheckChipset(getDeviceData) ) |
| 1091 | return 1; |
| 1092 | |
| 1093 | ans=CmdLFHitagReader("26"); |
| 1094 | if (ans==0) |
| 1095 | return 1; |
| 1096 | |
| 1097 | ans=CmdCOTAGRead(""); |
| 1098 | if (ans>0){ |
| 1099 | PrintAndLog("\nValid COTAG ID Found!"); |
| 1100 | return 1; |
| 1101 | } |
| 1102 | PrintAndLog("Signal looks just like noise. Quitting."); |
| 1103 | return 0; |
| 1104 | } |
| 1105 | } |
| 1106 | |
| 1107 | // identify chipset |
| 1108 | CheckChipset(getDeviceData); |
| 1109 | |
| 1110 | ans=CmdFSKdemodIO(""); |
| 1111 | if (ans>0) { |
| 1112 | PrintAndLog("\nValid IO Prox ID Found!"); |
| 1113 | return 1; |
| 1114 | } |
| 1115 | ans=CmdFSKdemodPyramid(""); |
| 1116 | if (ans>0) { |
| 1117 | PrintAndLog("\nValid Pyramid ID Found!"); |
| 1118 | return 1; |
| 1119 | } |
| 1120 | ans=CmdFSKdemodParadox(""); |
| 1121 | if (ans>0) { |
| 1122 | PrintAndLog("\nValid Paradox ID Found!"); |
| 1123 | return 1; |
| 1124 | } |
| 1125 | ans=CmdFSKdemodAWID(""); |
| 1126 | if (ans>0) { |
| 1127 | PrintAndLog("\nValid AWID ID Found!"); |
| 1128 | return 1; |
| 1129 | } |
| 1130 | ans=CmdFSKdemodHID(""); |
| 1131 | if (ans>0) { |
| 1132 | PrintAndLog("\nValid HID Prox ID Found!"); |
| 1133 | return 1; |
| 1134 | } |
| 1135 | ans=CmdAskEM410xDemod(""); |
| 1136 | if (ans>0) { |
| 1137 | PrintAndLog("\nValid EM410x ID Found!"); |
| 1138 | return 1; |
| 1139 | } |
| 1140 | ans=CmdG_Prox_II_Demod(""); |
| 1141 | if (ans>0) { |
| 1142 | PrintAndLog("\nValid Guardall G-Prox II ID Found!"); |
| 1143 | return 1; |
| 1144 | } |
| 1145 | ans=CmdFDXBdemodBI(""); |
| 1146 | if (ans>0) { |
| 1147 | PrintAndLog("\nValid FDX-B ID Found!"); |
| 1148 | return 1; |
| 1149 | } |
| 1150 | ans=EM4x50Read("", false); |
| 1151 | if (ans>0) { |
| 1152 | PrintAndLog("\nValid EM4x50 ID Found!"); |
| 1153 | return 1; |
| 1154 | } |
| 1155 | ans=CmdVikingDemod(""); |
| 1156 | if (ans>0) { |
| 1157 | PrintAndLog("\nValid Viking ID Found!"); |
| 1158 | return 1; |
| 1159 | } |
| 1160 | ans=CmdIndalaDecode(""); |
| 1161 | if (ans>0) { |
| 1162 | PrintAndLog("\nValid Indala ID Found!"); |
| 1163 | return 1; |
| 1164 | } |
| 1165 | ans=CmdPSKNexWatch(""); |
| 1166 | if (ans>0) { |
| 1167 | PrintAndLog("\nValid NexWatch ID Found!"); |
| 1168 | return 1; |
| 1169 | } |
| 1170 | ans=CmdPSKIdteck(""); |
| 1171 | if (ans>0) { |
| 1172 | PrintAndLog("\nValid Idteck ID Found!"); |
| 1173 | return 1; |
| 1174 | } |
| 1175 | ans=CmdJablotronDemod(""); |
| 1176 | if (ans>0) { |
| 1177 | PrintAndLog("\nValid Jablotron ID Found!"); |
| 1178 | return 1; |
| 1179 | } |
| 1180 | ans=CmdLFNedapDemod(""); |
| 1181 | if (ans>0) { |
| 1182 | PrintAndLog("\nValid NEDAP ID Found!"); |
| 1183 | return 1; |
| 1184 | } |
| 1185 | ans=CmdVisa2kDemod(""); |
| 1186 | if (ans>0) { |
| 1187 | PrintAndLog("\nValid Visa2000 ID Found!"); |
| 1188 | return 1; |
| 1189 | } |
| 1190 | ans=CmdNoralsyDemod(""); |
| 1191 | if (ans>0) { |
| 1192 | PrintAndLog("\nValid Noralsy ID Found!"); |
| 1193 | return 1; |
| 1194 | } |
| 1195 | ans=CmdPrescoDemod(""); |
| 1196 | if (ans>0) { |
| 1197 | PrintAndLog("\nValid Presco ID Found!"); |
| 1198 | return 1; |
| 1199 | } |
| 1200 | |
| 1201 | // TIdemod? |
| 1202 | PrintAndLog("\nNo Known Tags Found!\n"); |
| 1203 | if (testRaw=='u' || testRaw=='U'){ |
| 1204 | //test unknown tag formats (raw mode) |
| 1205 | PrintAndLog("\nChecking for Unknown tags:\n"); |
| 1206 | ans=AutoCorrelate(4000, FALSE, FALSE); |
| 1207 | |
| 1208 | if (ans > 0) { |
| 1209 | |
| 1210 | PrintAndLog("Possible Auto Correlation of %d repeating samples",ans); |
| 1211 | |
| 1212 | if ( ans % 8 == 0) { |
| 1213 | int bytes = (ans / 8); |
| 1214 | PrintAndLog("Possible %d bytes", bytes); |
| 1215 | int blocks = 0; |
| 1216 | if ( bytes % 2 == 0) { |
| 1217 | blocks = (bytes / 2); |
| 1218 | PrintAndLog("Possible 2 blocks, width %d", blocks); |
| 1219 | } |
| 1220 | if ( bytes % 4 == 0) { |
| 1221 | blocks = (bytes / 4); |
| 1222 | PrintAndLog("Possible 4 blocks, width %d", blocks); |
| 1223 | } |
| 1224 | if ( bytes % 8 == 0) { |
| 1225 | blocks = (bytes / 8); |
| 1226 | PrintAndLog("Possible 8 blocks, width %d", blocks); |
| 1227 | } |
| 1228 | if ( bytes % 16 == 0) { |
| 1229 | blocks = (bytes / 16); |
| 1230 | PrintAndLog("Possible 16 blocks, width %d", blocks); |
| 1231 | } |
| 1232 | } |
| 1233 | } |
| 1234 | |
| 1235 | ans=GetFskClock("",FALSE,FALSE); |
| 1236 | if (ans != 0){ //fsk |
| 1237 | ans=FSKrawDemod("",TRUE); |
| 1238 | if (ans>0) { |
| 1239 | PrintAndLog("\nUnknown FSK Modulated Tag Found!"); |
| 1240 | return 1; |
| 1241 | } |
| 1242 | } |
| 1243 | bool st = TRUE; |
| 1244 | ans=ASKDemod_ext("0 0 0",TRUE,FALSE,1,&st); |
| 1245 | if (ans>0) { |
| 1246 | PrintAndLog("\nUnknown ASK Modulated and Manchester encoded Tag Found!"); |
| 1247 | PrintAndLog("\nif it does not look right it could instead be ASK/Biphase - try 'data rawdemod ab'"); |
| 1248 | return 1; |
| 1249 | } |
| 1250 | |
| 1251 | ans=CmdPSK1rawDemod(""); |
| 1252 | if (ans>0) { |
| 1253 | PrintAndLog("Possible unknown PSK1 Modulated Tag Found above!\n\nCould also be PSK2 - try 'data rawdemod p2'"); |
| 1254 | PrintAndLog("\nCould also be PSK3 - [currently not supported]"); |
| 1255 | PrintAndLog("\nCould also be NRZ - try 'data nrzrawdemod"); |
| 1256 | return 1; |
| 1257 | } |
| 1258 | PrintAndLog("\nNo Data Found!\n"); |
| 1259 | } |
| 1260 | return 0; |
| 1261 | } |
| 1262 | |
| 1263 | static command_t CommandTable[] = { |
| 1264 | {"help", CmdHelp, 1, "This help"}, |
| 1265 | {"animal", CmdLFFdx, 1, "{ Animal RFIDs... }"}, |
| 1266 | {"awid", CmdLFAWID, 1, "{ AWID RFIDs... }"}, |
| 1267 | {"cotag", CmdLFCOTAG, 1, "{ COTAG RFIDs... }"}, |
| 1268 | {"em", CmdLFEM4X, 1, "{ EM4X RFIDs... }"}, |
| 1269 | {"guard", CmdLFGuard, 1, "{ Guardall RFIDs... }"}, |
| 1270 | {"hid", CmdLFHID, 1, "{ HID RFIDs... }"}, |
| 1271 | {"hitag", CmdLFHitag, 1, "{ HITAG RFIDs... }"}, |
| 1272 | // {"indala", CmdLFIndala, 1, "{ Indala RFIDs... }"}, |
| 1273 | {"io", CmdLFIO, 1, "{ IOPROX RFIDs... }"}, |
| 1274 | {"jablotron", CmdLFJablotron, 1, "{ Jablotron RFIDs... }"}, |
| 1275 | {"nedap", CmdLFNedap, 1, "{ Nedap RFIDs... }"}, |
| 1276 | {"noralsy", CmdLFNoralsy, 1, "{ Noralsy RFIDs... }"}, |
| 1277 | {"pcf7931", CmdLFPCF7931, 1, "{ PCF7931 RFIDs... }"}, |
| 1278 | {"presco", CmdLFPresco, 1, "{ Presco RFIDs... }"}, |
| 1279 | {"pyramid", CmdLFPyramid, 1, "{ Farpointe/Pyramid RFIDs... }"}, |
| 1280 | {"ti", CmdLFTI, 1, "{ TI RFIDs... }"}, |
| 1281 | {"t55xx", CmdLFT55XX, 1, "{ T55xx RFIDs... }"}, |
| 1282 | {"viking", CmdLFViking, 1, "{ Viking RFIDs... }"}, |
| 1283 | {"visa2000", CmdLFVisa2k, 1, "{ Visa2000 RFIDs... }"}, |
| 1284 | {"config", CmdLFSetConfig, 0, "Set config for LF sampling, bit/sample, decimation, frequency"}, |
| 1285 | {"cmdread", CmdLFCommandRead, 0, "<off period> <'0' period> <'1' period> <command> ['h' 134] \n\t\t-- Modulate LF reader field to send command before read (all periods in microseconds)"}, |
| 1286 | {"flexdemod", CmdFlexdemod, 1, "Demodulate samples for FlexPass"}, |
| 1287 | {"indalademod", CmdIndalaDemod, 1, "['224'] -- Demodulate samples for Indala 64 bit UID (option '224' for 224 bit)"}, |
| 1288 | {"indalaclone", CmdIndalaClone, 0, "<UID> ['l']-- Clone Indala to T55x7 (tag must be in antenna)(UID in HEX)(option 'l' for 224 UID"}, |
| 1289 | {"read", CmdLFRead, 0, "['s' silent] Read 125/134 kHz LF ID-only tag. Do 'lf read h' for help"}, |
| 1290 | {"search", CmdLFfind, 1, "[offline] ['u'] Read and Search for valid known tag (in offline mode it you can load first then search) \n\t\t-- 'u' to search for unknown tags"}, |
| 1291 | {"sim", CmdLFSim, 0, "[GAP] -- Simulate LF tag from buffer with optional GAP (in microseconds)"}, |
| 1292 | {"simask", CmdLFaskSim, 0, "[clock] [invert <1|0>] [biphase/manchester/raw <'b'|'m'|'r'>] [msg separator 's'] [d <hexdata>] \n\t\t-- Simulate LF ASK tag from demodbuffer or input"}, |
| 1293 | {"simfsk", CmdLFfskSim, 0, "[c <clock>] [i] [H <fcHigh>] [L <fcLow>] [d <hexdata>] \n\t\t-- Simulate LF FSK tag from demodbuffer or input"}, |
| 1294 | {"simpsk", CmdLFpskSim, 0, "[1|2|3] [c <clock>] [i] [r <carrier>] [d <raw hex to sim>] \n\t\t-- Simulate LF PSK tag from demodbuffer or input"}, |
| 1295 | {"simbidir", CmdLFSimBidir, 0, "Simulate LF tag (with bidirectional data transmission between reader and tag)"}, |
| 1296 | {"snoop", CmdLFSnoop, 0, "Snoop LF"}, |
| 1297 | {"vchdemod", CmdVchDemod, 1, "['clone'] -- Demodulate samples for VeriChip"}, |
| 1298 | {NULL, NULL, 0, NULL} |
| 1299 | }; |
| 1300 | |
| 1301 | int CmdLF(const char *Cmd) { |
| 1302 | clearCommandBuffer(); |
| 1303 | CmdsParse(CommandTable, Cmd); |
| 1304 | return 0; |
| 1305 | } |
| 1306 | |
| 1307 | int CmdHelp(const char *Cmd) { |
| 1308 | CmdsHelp(CommandTable); |
| 1309 | return 0; |
| 1310 | } |