git.zerfleddert.de Git - proxmark3-svn/blob - client/cmdlfhid.c

   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 HID commands
   9 //-----------------------------------------------------------------------------
  10
  11 #include "cmdlfhid.h"
  12
  13 static int CmdHelp(const char *Cmd);
  14
  15 int usage_lf_hid_wiegand(void){
  16         PrintAndLog("This command converts facility code/card number to Wiegand code");
  17         PrintAndLog("Usage: lf hid wiegand [h] [OEM] [FC] [CN]");
  18
  19         PrintAndLog("Options:");
  20         PrintAndLog("       h             - This help");
  21         PrintAndLog("       OEM           - OEM number / site code");
  22         PrintAndLog("       FC            - facility code");
  23         PrintAndLog("       CN            - card number");
  24         PrintAndLog("Examples:");
  25         PrintAndLog("      lf hid wiegand 0 101 2001");
  26         return 0;
  27 }
  28 int usage_lf_hid_sim(void){
  29         PrintAndLog("HID Tag simulator");
  30         PrintAndLog("");
  31         PrintAndLog("Usage:  lf hid sim [h] [ID]");
  32         PrintAndLog("Options:");
  33         PrintAndLog("       h   - This help");
  34         PrintAndLog("       ID  - HID id");
  35         PrintAndLog("Examples:");
  36         PrintAndLog("      lf hid sim 224");
  37         return 0;
  38 }
  39 int usage_lf_hid_clone(void){
  40         PrintAndLog("Clone HID to T55x7.  Tag must be on antenna. ");
  41         PrintAndLog("");
  42         PrintAndLog("Usage:  lf hid clone [h] [ID] <L>");
  43         PrintAndLog("Options:");
  44         PrintAndLog("       h   - This help");
  45         PrintAndLog("       ID  - HID id");
  46         PrintAndLog("       L   - 84bit ID");
  47         PrintAndLog("Examples:");
  48         PrintAndLog("      lf hid clone 224");
  49         PrintAndLog("      lf hid clone 224 L");
  50         return 0;
  51 }
  52 int usage_lf_hid_brute(void){
  53         PrintAndLog("Enables bruteforce of HID readers with specified facility code.");
  54         PrintAndLog("Different formatlength is supported");
  55         PrintAndLog("This is a incremental attack against reader.");
  56         PrintAndLog("");
  57         PrintAndLog("Usage:  lf hid brute [h] <format length> <facility code>");
  58         PrintAndLog("Options :");
  59         PrintAndLog("  h                                - This help");
  60         PrintAndLog("  <format length>  - 26|33|34|35|37|40|44|84");
  61         PrintAndLog("  <facility code>  - 8-bit value HID facility code");
  62         PrintAndLog("");
  63         PrintAndLog("Sample  : lf hid brute 26 224");
  64         return 0;
  65 }
  66
  67 int CmdHIDDemodFSK(const char *Cmd) {
  68         int findone = ( Cmd[0] == '1' ) ? 1 : 0;
  69         UsbCommand c = {CMD_HID_DEMOD_FSK, {findone, 0 , 0}};
  70         clearCommandBuffer();
  71         SendCommand(&c);
  72         return 0;
  73 }
  74
  75 int CmdHIDSim(const char *Cmd) {
  76         unsigned int hi = 0, lo = 0;
  77         int n = 0, i = 0;
  78
  79         uint8_t ctmp = param_getchar(Cmd, 0);
  80         if ( strlen(Cmd) == 0 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_hid_sim();
  81
  82         while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
  83                 hi = (hi << 4) | (lo >> 28);
  84                 lo = (lo << 4) | (n & 0xf);
  85         }
  86
  87         PrintAndLog("Emulating tag with ID %x%16x", hi, lo);
  88         PrintAndLog("Press pm3-button to abort simulation");
  89
  90         UsbCommand c = {CMD_HID_SIM_TAG, {hi, lo, 0}};
  91         clearCommandBuffer();
  92         SendCommand(&c);
  93         return 0;
  94 }
  95
  96 int CmdHIDClone(const char *Cmd) {
  97
  98         unsigned int hi2 = 0, hi = 0, lo = 0;
  99         int n = 0, i = 0;
 100         UsbCommand c;
 101
 102         uint8_t ctmp = param_getchar(Cmd, 0);
 103         if ( strlen(Cmd) == 0 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_hid_clone();
 104
 105         if (strchr(Cmd,'l') != 0) {
 106                 while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
 107                         hi2 = (hi2 << 4) | (hi >> 28);
 108                         hi = (hi << 4) | (lo >> 28);
 109                         lo = (lo << 4) | (n & 0xf);
 110                 }
 111
 112                 PrintAndLog("Cloning tag with long ID %x%08x%08x", hi2, hi, lo);
 113
 114                 c.d.asBytes[0] = 1;
 115         } else {
 116                 while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
 117                         hi = (hi << 4) | (lo >> 28);
 118                         lo = (lo << 4) | (n & 0xf);
 119                 }
 120
 121                 PrintAndLog("Cloning tag with ID %x%08x", hi, lo);
 122
 123                 hi2 = 0;
 124                 c.d.asBytes[0] = 0;
 125         }
 126
 127         c.cmd = CMD_HID_CLONE_TAG;
 128         c.arg[0] = hi2;
 129         c.arg[1] = hi;
 130         c.arg[2] = lo;
 131
 132         clearCommandBuffer();
 133         SendCommand(&c);
 134         return 0;
 135 }
 136 // struct to handle wiegand
 137 typedef struct {
 138         uint8_t  FormatLen;
 139         uint8_t  SiteCode;
 140         uint8_t  FacilityCode;
 141         uint8_t  CardNumber;
 142         uint8_t* Wiegand;
 143         size_t   Wiegand_n;
 144  } wiegand_t;
 145
 146 // static void addHIDMarker(uint8_t fmtlen, uint8_t *out) {
 147
 148 // }
 149 //static void getParity26(uint32_t *hi, uint32_t *lo){
 150         // uint32_t result = 0;
 151         // int i;
 152         // // even parity
 153         // for (i = 24;i >= 13;i--)
 154                 // result ^= (*lo >> i) & 1;
 155         // // even parity 26th bit
 156         // *lo |= result << 25;
 157
 158         // // odd parity
 159         // result = 0;
 160         // for (i = 12;i >= 1;i--)
 161                 // result ^= (*lo >> i) & 1;
 162         // *lo |= !result;
 163 //}
 164
 165 // static void getParity33(uint32_t *hi, uint32_t *lo){
 166
 167 // }
 168 // static void getParity34(uint32_t *hi, uint32_t *lo){
 169         // uint32_t result = 0;
 170         // int i;
 171
 172         // // even parity
 173         // for (i = 7;i >= 0;i--)
 174                 // result ^= (*hi >> i) & i;
 175         // for (i = 31;i >= 24;i--)
 176                 // result ^= (*lo >> i) & 1;
 177
 178         // *hi |= result << 2;
 179
 180         // // odd parity bit
 181         // result = 0;
 182         // for (i = 23;i >= 1;i--)
 183                 // result ^= (*lo >> i) & 1;
 184
 185         // *lo |= !result;
 186 // }
 187 // static void getParity35(uint32_t *hi, uint32_t *lo){
 188 // }
 189 // static void getParity37S(uint32_t *hi,uint32_t *lo){
 190         // uint32_t result = 0;
 191         // int i;
 192
 193         // // even parity
 194         // for (i = 4; i >= 0; i--)
 195                 // result ^= (*hi >> i) & 1;
 196
 197         // for (i = 31; i >= 20; i--)
 198                 // result ^= (*lo >> i) & 1;
 199
 200         // *hi |= result;
 201
 202         // // odd parity
 203         // result = 0;
 204         // for (i = 19; i >= 1; i--)
 205                 // result ^= (*lo >> i) & 1;
 206
 207         // *lo |= result;
 208 // }
 209 // static void getParity37H(uint32_t *hi, uint32_t *lo){
 210         // uint32_t result = 0;
 211         // int i;
 212
 213         // // even parity
 214         // for (i = 4;i >= 0;i--)
 215                 // result ^= (*hi >> i) & 1;
 216         // for (i = 31;i >= 20;i--)
 217                 // result ^= (*lo >> i) & 1;
 218         // *hi |= result << 4;
 219
 220         // // odd parity
 221         // result = 0;
 222         // for (i = 19;i >= 1;i--)
 223                 // result ^= (*lo >> i) & 1;
 224         // *lo |= result;
 225 // }
 226
 227 //static void calc26(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
 228 void calc26(uint16_t fc, uint32_t cardno, uint8_t *out){
 229
 230         uint8_t wiegand[24];
 231         num_to_bytebits(fc, 8, wiegand);
 232         num_to_bytebits(cardno, 16, wiegand+8);
 233         wiegand_add_parity(out,  wiegand, sizeof(wiegand) );
 234
 235 //   *out |= (1 << 26); // why this?
 236 //   *out |= (1 << 37);  // bit format for hid?
 237 }
 238 // static void calc33(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
 239
 240 // }
 241 // static void calc34(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
 242   // // put card number first bit 1 .. 20 //
 243   // *lo = ((cardno & 0X000F7FFF) << 1) | ((fc & 0XFFFF) << 17);
 244   // // set bit format for less than 37 bit format
 245   // *hi = (1 << 5) | (fc >> 15);
 246 // }
 247 // static void calc35(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
 248         // *lo = ((cardno & 0xFFFFF) << 1) | fc << 21;
 249         // *hi = (1 << 5) | ((fc >> 11) & 1);
 250 // }
 251 // static void calc37S(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
 252         // // FC 2 - 17   - 16 bit
 253         // // cardno 18 - 36  - 19 bit
 254         // // Even P1   1 - 19
 255         // // Odd  P37  19 - 36
 256
 257         // fc = fc & 0xFFFF;
 258         // *lo = ((fc << 20) | (cardno & 0x7FFFF) << 1);
 259         // *hi = (fc >> 12);
 260 // }
 261 // static void calc37H(uint64_t cardno, uint32_t *hi, uint32_t *lo){
 262         // // SC NONE
 263         // // cardno 1-35 34 bits
 264         // // Even Parity  0th bit  1-18
 265         // // Odd  Parity 36th bit 19-35
 266         // cardno = (cardno & 0x00000003FFFFFFFF);
 267         // *lo = (cardno << 1);
 268         // *hi = (cardno >> 31);
 269 // }
 270 // static void calc40(uint64_t cardno, uint32_t *hi, uint32_t *lo){
 271         // cardno = (cardno & 0xFFFFFFFFFF);
 272         // *lo = ((cardno & 0xFFFFFFFF) << 1 );
 273         // *hi = (cardno >> 31);
 274 // }
 275
 276 static void calcWiegand(uint8_t fmtlen, uint16_t fc, uint64_t cardno, uint8_t *bits){
 277
 278         // uint32_t hi = 0, lo = 0;
 279         // uint32_t cn32 = (cardno & 0xFFFFFFFF);
 280         // switch ( fmtlen ) {
 281                 // case 26 : {
 282                         // calc26(fc, cn32, bits);
 283                         // addHIDFormatMarker(fmtlen, bits);
 284                         // break;
 285                 // }
 286                 // case 33 : {
 287                         // // calc33(fc, cn32, hi, lo);
 288                         // // getParity33(hi, lo);
 289                         // break;
 290                 // }
 291                 // case 34 : {
 292                         // calc34(fc, cn32, hi, lo);
 293                         // getParity34(hi, lo);
 294                         // break;
 295                 // }
 296                 // case 35 : {
 297                         // calc35(fc, cn32, hi, lo);
 298                         // getParity35(hi, lo);
 299                         // break;
 300                 // }
 301                 // case 37 : {
 302                         // calc37S(fc, cn32, hi, lo);
 303                         // getParity37S(hi, lo);
 304                         // break;
 305                 // }
 306                 // case 38 : {
 307                         // calc37H(cn32, hi, lo);
 308                         // getParity37H(hi, lo);
 309                         // break;
 310                 // }
 311                 // case 40 : calc40(cardno, hi, lo);    break;
 312                 // case 44 : { break; }
 313                 // case 84 : { break; }
 314         // }
 315
 316 }
 317
 318 int CmdHIDWiegand(const char *Cmd) {
 319         uint32_t oem = 0, fc = 0;
 320         uint64_t cardnum = 0;
 321
 322         uint32_t blocks[2], wiegand[2];
 323
 324         uint8_t bits[96];
 325         uint8_t *bs = bits;
 326         memset(bs, 0, sizeof(bits));
 327
 328         uint8_t ctmp = param_getchar(Cmd, 0);
 329         if ( strlen(Cmd) == 0 || strlen(Cmd) < 3 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_hid_wiegand();
 330
 331         oem = param_get8(Cmd, 0);
 332         fc = param_get32ex(Cmd, 1, 0, 10);
 333         cardnum = param_get64ex(Cmd, 2, 0, 10);
 334
 335         //
 336         uint8_t ftmlen[] = {26,33,34,35,37,38,40};
 337
 338         PrintAndLog("HID | OEM |  FC |   CN  |  Wiegand  |  HID Formatted");
 339         PrintAndLog("----+-----+-----+-------+-----------+--------------------");
 340         for (uint8_t i = 0; i < sizeof(ftmlen); i++){
 341                 calcWiegand( ftmlen[i], fc, cardnum, bs);
 342                 blocks[0] = bytebits_to_byte(bs,32);
 343                 blocks[1] = bytebits_to_byte(bs+32,32);
 344                 PrintAndLog(" %d | %d  | %d  | %llu  | %08X%08X  |  %08X%08X ",
 345                         ftmlen,
 346                         oem,
 347                         fc,
 348                         cardnum,
 349                         wiegand[0],
 350                         wiegand[1],
 351                         blocks[0],
 352                         blocks[1]
 353                         );
 354         }
 355         PrintAndLog("----+-----+-----+-------+-----------+--------------------");
 356         return 0;
 357 }
 358
 359 int CmdHIDBrute(const char *Cmd){
 360
 361         bool error = TRUE;
 362         uint8_t fc = 0, fmtlen = 0;
 363
 364         uint8_t bits[96];
 365         uint8_t *bs = bits;
 366         memset(bs, 0, sizeof(bits));
 367
 368         UsbCommand c = {CMD_HID_SIM_TAG, {0, 0, 0}};
 369
 370         char cmdp = param_getchar(Cmd, 0);
 371         if (strlen(Cmd) > 2 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_hid_brute();
 372
 373         fmtlen = param_get8(Cmd, 0);
 374         uint8_t ftms[] = {26,33,34,35,37};
 375         for ( uint8_t i = 0; i < sizeof(ftms); i++){
 376                 if ( ftms[i] == fmtlen ) {
 377                         error = FALSE;
 378                 }
 379         }
 380
 381         if ( error ) return usage_lf_hid_brute();
 382
 383         fc =  param_get8(Cmd, 1);
 384         if ( fc == 0) return usage_lf_hid_brute();
 385
 386         PrintAndLog("Brute-forcing HID reader");
 387         PrintAndLog("Press pm3-button to abort simulation or run another command");
 388
 389         for ( uint16_t cn = 1; cn < 0xFFFF; ++cn){
 390                 if (ukbhit()) {
 391                         PrintAndLog("aborted via keyboard!");
 392                         c.cmd = CMD_PING;
 393                         c.arg[0] = 0x00;
 394                         c.arg[1] = 0x00;
 395                         c.arg[2] = 0x00;
 396                         clearCommandBuffer();
 397                         SendCommand(&c);
 398                         return 1;
 399                 }
 400
 401                 calcWiegand( fmtlen, fc, cn, bs);
 402
 403                 c.arg[0] = bytebits_to_byte(bs,32);
 404                 c.arg[1] = bytebits_to_byte(bs+32,32);
 405                 clearCommandBuffer();
 406                 SendCommand(&c);
 407
 408                 PrintAndLog("Trying FC: %u; CN: %u", fc, cn);
 409                 // pause
 410                 sleep(1);
 411         }
 412         return 0;
 413 }
 414
 415 static command_t CommandTable[] = {
 416         {"help",    CmdHelp,        1, "This help"},
 417         {"fskdemod",CmdHIDDemodFSK, 0, "[1] Realtime HID FSK demodulator (option '1' for one tag only)"},
 418         {"sim",     CmdHIDSim,      0, "<ID> -- HID tag simulator"},
 419         {"clone",   CmdHIDClone,    0, "<ID> [L] -- Clone HID to T55x7"},
 420         {"wiegand", CmdHIDWiegand,  0, "<OEM> <facility code> <card number> -- convert facility code/card number to Wiegand code"},
 421         {"brute",   CmdHIDBrute, 0, "<format length> <facility code> -- brute force card number"},
 422         {NULL, NULL, 0, NULL}
 423 };
 424
 425 int CmdLFHID(const char *Cmd) {
 426         clearCommandBuffer();
 427         CmdsParse(CommandTable, Cmd);
 428         return 0;
 429 }
 430
 431 int CmdHelp(const char *Cmd) {
 432         CmdsHelp(CommandTable);
 433         return 0;
 434 }