cvs.zerfleddert.de Git - proxmark3-svn/blob - client/cmdlfawid.c

   1 //-----------------------------------------------------------------------------
   2 // Authored by Craig Young <cyoung@tripwire.com> based on cmdlfhid.c structure
   3 //
   4 // cmdlfhid.c is Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
   5 //
   6 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
   7 // at your option, any later version. See the LICENSE.txt file for the text of
   8 // the license.
   9 //-----------------------------------------------------------------------------
  10 // Low frequency AWID26 commands
  11 //-----------------------------------------------------------------------------
  12
  13 #include <stdio.h>      // sscanf
  14 #include "proxmark3.h"  // Definitions, USB controls, etc
  15 #include "ui.h"         // PrintAndLog
  16 #include "cmdparser.h"  // CmdsParse, CmdsHelp
  17 #include "cmdlfawid.h"  // AWID function declarations
  18 #include "lfdemod.h"    // parityTest
  19 #include "util.h"       // weigandparity
  20 #include "protocols.h"  // for T55xx config register definitions
  21 #include "cmdmain.h"
  22 #include "sleep.h"
  23
  24 static int CmdHelp(const char *Cmd);
  25
  26 int usage_lf_awid_fskdemod(void) {
  27         PrintAndLog("Enables AWID compatible reader mode printing details of scanned AWID26 or AWID50 tags.");
  28         PrintAndLog("By default, values are printed and logged until the button is pressed or another USB command is issued.");
  29         PrintAndLog("If the [1] option is provided, reader mode is exited after reading a single AWID card.");
  30         PrintAndLog("");
  31         PrintAndLog("Usage:  lf awid fskdemod [h] [1]");
  32         PrintAndLog("Options :");
  33         PrintAndLog("      h :  This help");
  34         PrintAndLog("      1 : (optional) stop after reading a single card");
  35         PrintAndLog("");
  36         PrintAndLog("Samples");
  37         PrintAndLog("        lf awid fskdemod");
  38         PrintAndLog("        lf awid fskdemod 1");
  39         return 0;
  40 }
  41
  42 int usage_lf_awid_sim(void) {
  43         PrintAndLog("Enables simulation of AWID card with specified facility-code and card number.");
  44         PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
  45         PrintAndLog("");
  46         PrintAndLog("Usage:  lf awid sim [h] <format> <facility-code> <card-number>");
  47         PrintAndLog("Options :");
  48         PrintAndLog("                h :  This help");
  49         PrintAndLog("         <format> :  format length 26|50");
  50         PrintAndLog("  <facility-code> :  8|16bit value facility code");
  51         PrintAndLog("    <card number> :  16|32-bit value card number");
  52         PrintAndLog("");
  53         PrintAndLog("Samples");
  54         PrintAndLog("       lf awid sim 26 224 1337");
  55         PrintAndLog("       lf awid sim 50 2001 13371337");
  56         return 0;
  57 }
  58
  59 int usage_lf_awid_clone(void) {
  60         PrintAndLog("Enables cloning of AWID card with specified facility-code and card number onto T55x7.");
  61         PrintAndLog("The T55x7 must be on the antenna when issuing this command.  T55x7 blocks are calculated and printed in the process.");
  62         PrintAndLog("");
  63         PrintAndLog("Usage:  lf awid clone [h] <format> <facility-code> <card-number> [Q5]");
  64         PrintAndLog("Options :");
  65         PrintAndLog("                h :  This help");
  66         PrintAndLog("         <format> :  format length 26|50");
  67         PrintAndLog("  <facility-code> :  8|16bit value facility code");
  68         PrintAndLog("    <card number> :  16|32-bit value card number");
  69         PrintAndLog("               Q5 :  optional - clone to Q5 (T5555) instead of T55x7 chip");
  70         PrintAndLog("");
  71         PrintAndLog("Samples");
  72         PrintAndLog("       lf awid clone 26 224 1337");
  73         PrintAndLog("       lf awid clone 50 2001 13371337");
  74         return 0;
  75 }
  76
  77 int usage_lf_awid_brute(void){
  78         PrintAndLog("Enables bruteforce of AWID reader with specified facility-code.");
  79         PrintAndLog("This is a incremental attack against reader.");
  80         PrintAndLog("");
  81         PrintAndLog("Usage:  lf awid brute [h] <format> <facility-code>");
  82         PrintAndLog("Options :");
  83         PrintAndLog("                h :  This help");
  84         PrintAndLog("         <format> :  format length 26|50");
  85         PrintAndLog("  <facility-code> :  8|16bit value facility code");
  86         PrintAndLog("          <delay> :  delay betweens attempts in ms. Default 1000ms");
  87         PrintAndLog("");
  88         PrintAndLog("Samples");
  89         PrintAndLog("       lf awid brute 26 224");
  90         PrintAndLog("       lf awid brute 50 2001 2000");
  91         return 0;
  92 }
  93
  94 int CmdAWIDDemodFSK(const char *Cmd) {
  95         int findone = 0;
  96         if (Cmd[0] == 'h' || Cmd[0] == 'H') return usage_lf_awid_fskdemod();
  97         if (Cmd[0] == '1') findone = 1;
  98
  99         UsbCommand c = {CMD_AWID_DEMOD_FSK, {findone, 0, 0}};
 100         clearCommandBuffer();
 101         SendCommand(&c);
 102         return 0;
 103 }
 104
 105 //refactored by marshmellow
 106 int getAWIDBits(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint8_t *bits) {
 107
 108         // the return bits, preamble 0000 0001
 109         bits[7] = 1;
 110
 111         uint8_t pre[66];
 112         memset(pre, 0, sizeof(pre));
 113
 114         // add formatlength
 115         num_to_bytebits(fmtlen, 8, pre);
 116
 117         // add facilitycode, cardnumber and wiegand parity bits
 118         if ( fmtlen == 26 ) {
 119                 uint8_t wiegand[24];
 120                 num_to_bytebits(fc, 8, wiegand);
 121                 num_to_bytebits(cn, 16, wiegand+8);
 122                 wiegand_add_parity(pre+8, wiegand,  sizeof(wiegand));
 123         } else {
 124                 uint8_t wiegand[48];
 125                 num_to_bytebits(fc, 16, wiegand);
 126                 num_to_bytebits(cn, 32, wiegand+16);
 127                 wiegand_add_parity(pre+8, wiegand, sizeof(wiegand));
 128         }
 129
 130         // add AWID 4bit parity
 131         size_t bitLen = addParity(pre, bits+8, 66, 4, 1);
 132
 133         if (bitLen != 88) return 0;
 134         return 1;
 135 }
 136
 137 int CmdAWIDSim(const char *Cmd) {
 138         uint32_t fc = 0, cn = 0;
 139         uint8_t fmtlen = 0;
 140         uint8_t bits[96];
 141         uint8_t *bs = bits;
 142         size_t size = sizeof(bits);
 143         memset(bs, 0x00, size);
 144
 145         uint64_t arg1 = ( 10 << 8 ) + 8; // fcHigh = 10, fcLow = 8
 146         uint64_t arg2 = 50; // clk RF/50 invert=0
 147
 148         char cmdp = param_getchar(Cmd, 0);
 149         if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_awid_sim();
 150
 151         fmtlen = param_get8(Cmd, 0);
 152         fc = param_get32ex(Cmd, 1, 0, 10);
 153         cn = param_get32ex(Cmd, 2, 0, 10);
 154         if ( !fc || !cn) return usage_lf_awid_sim();
 155
 156         switch(fmtlen) {
 157                 case 26:
 158                         if ((fc & 0xFF) != fc) {
 159                                 fc &= 0xFF;
 160                                 PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc);
 161                         }
 162
 163                         if ((cn & 0xFFFF) != cn) {
 164                                 cn &= 0xFFFF;
 165                                 PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn);
 166                         }
 167                         break;
 168                 case 50:
 169                         if ((fc & 0xFFFF) != fc) {
 170                                 fc &= 0xFFFF;
 171                                 PrintAndLog("Facility-Code Truncated to 16-bits (AWID50): %u", fc);
 172                         }
 173                         break;
 174                 default: break;
 175         }
 176
 177         PrintAndLog("Emulating AWID %u -- FC: %u; CN: %u\n", fmtlen, fc, cn);
 178         PrintAndLog("Press pm3-button to abort simulation or run another command");
 179
 180         if (!getAWIDBits(fmtlen, fc, cn, bs)) {
 181                 PrintAndLog("Error with tag bitstream generation.");
 182                 return 1;
 183         }
 184         // AWID uses: fcHigh: 10, fcLow: 8, clk: 50, invert: 0
 185         // arg1 --- fcHigh<<8 + fcLow
 186         // arg2 --- Inversion and clk setting
 187         // 96   --- Bitstream length: 96-bits == 12 bytes
 188         UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};
 189         memcpy(c.d.asBytes, bs, size);
 190         clearCommandBuffer();
 191         SendCommand(&c);
 192         return 0;
 193 }
 194
 195 int CmdAWIDClone(const char *Cmd) {
 196         uint32_t blocks[4] = {T55x7_MODULATION_FSK2a | T55x7_BITRATE_RF_50 | 3<<T55x7_MAXBLOCK_SHIFT, 0, 0, 0};
 197         uint32_t fc = 0, cn = 0;
 198         uint8_t fmtlen = 0;
 199         uint8_t bits[96];
 200         uint8_t *bs=bits;
 201         memset(bs,0,sizeof(bits));
 202
 203         char cmdp = param_getchar(Cmd, 0);
 204         if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_awid_clone();
 205
 206         fmtlen = param_get8(Cmd, 0);
 207         fc = param_get32ex(Cmd, 1, 0, 10);
 208         cn = param_get32ex(Cmd, 2, 0, 10);
 209
 210         if ( !fc || !cn) return usage_lf_awid_clone();
 211
 212         switch(fmtlen) {
 213                 case 50:
 214                         if ((fc & 0xFFFF) != fc) {
 215                                 fc &= 0xFFFF;
 216                                 PrintAndLog("Facility-Code Truncated to 16-bits (AWID50): %u", fc);
 217                         }
 218                         break;
 219                 default:
 220                         fmtlen = 26;
 221                         if ((fc & 0xFF) != fc) {
 222                                 fc &= 0xFF;
 223                                 PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc);
 224                         }
 225
 226                         if ((cn & 0xFFFF) != cn) {
 227                                 cn &= 0xFFFF;
 228                                 PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn);
 229                         }
 230                         break;
 231         }
 232
 233         if (param_getchar(Cmd, 4) == 'Q' || param_getchar(Cmd, 4) == 'q')
 234                 //t5555 (Q5) BITRATE = (RF-2)/2 (iceman)
 235                 blocks[0] = T5555_MODULATION_FSK2 | T5555_INVERT_OUTPUT | 50<<T5555_BITRATE_SHIFT | 3<<T5555_MAXBLOCK_SHIFT;
 236
 237         if ( !getAWIDBits(fmtlen, fc, cn, bs)) {
 238                 PrintAndLog("Error with tag bitstream generation.");
 239                 return 1;
 240         }
 241
 242         blocks[1] = bytebits_to_byte(bs,32);
 243         blocks[2] = bytebits_to_byte(bs+32,32);
 244         blocks[3] = bytebits_to_byte(bs+64,32);
 245
 246         PrintAndLog("Preparing to clone AWID %u to T55x7 with FC: %u, CN: %u", fmtlen, fc, cn);
 247         PrintAndLog("Blk | Data ");
 248         PrintAndLog("----+------------");
 249         PrintAndLog(" 00 | 0x%08x", blocks[0]);
 250         PrintAndLog(" 01 | 0x%08x", blocks[1]);
 251         PrintAndLog(" 02 | 0x%08x", blocks[2]);
 252         PrintAndLog(" 03 | 0x%08x", blocks[3]);
 253
 254         UsbCommand resp;
 255         UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};
 256
 257         for (uint8_t i=0; i<4; i++) {
 258                 c.arg[0] = blocks[i];
 259                 c.arg[1] = i;
 260                 clearCommandBuffer();
 261                 SendCommand(&c);
 262                 if (!WaitForResponseTimeout(CMD_ACK, &resp, 1500)){
 263                         PrintAndLog("Error occurred, device did not respond during write operation.");
 264                         return -1;
 265                 }
 266         }
 267         return 0;
 268 }
 269
 270 int CmdAWIDBrute(const char *Cmd){
 271
 272         uint32_t fc = 0;
 273         uint8_t fmtlen = 0;
 274         uint16_t delay = 1000;
 275         uint8_t bits[96];
 276         uint8_t *bs = bits;
 277         size_t size = sizeof(bits);
 278         memset(bs, 0x00, size);
 279
 280         char cmdp = param_getchar(Cmd, 0);
 281         if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_awid_brute();
 282
 283         fmtlen = param_get8(Cmd, 0);
 284         fc =  param_get32ex(Cmd, 1, 0, 10);
 285         if ( !fc ) return usage_lf_awid_brute();
 286
 287         // delay between attemps,  defaults to 1000ms.
 288         delay = param_get8(Cmd, 2);
 289         if (delay < 400)
 290                 delay = 1000;
 291
 292         switch(fmtlen) {
 293                 case 50:
 294                         if ((fc & 0xFFFF) != fc) {
 295                                 fc &= 0xFFFF;
 296                                 PrintAndLog("Facility-Code Truncated to 16-bits (AWID50): %u", fc);
 297                         }
 298                         break;
 299                 default:
 300                         if ((fc & 0xFF) != fc) {
 301                                 fc &= 0xFF;
 302                                 PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc);
 303                         }
 304                         break;
 305         }
 306
 307         PrintAndLog("Bruteforceing AWID %d Reader", fmtlen);
 308         PrintAndLog("Press pm3-button to abort simulation or press key");
 309
 310         uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8
 311         uint64_t arg2 = 50;              // clk RF/50 invert=0
 312         UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};
 313
 314         for ( uint16_t cn = 1; cn < 0xFFFF; ++cn){
 315
 316                 if (ukbhit()) {
 317                         PrintAndLog("aborted via keyboard!");
 318                         UsbCommand ping = {CMD_PING};
 319                         clearCommandBuffer();
 320                         SendCommand(&ping);
 321                         return 1;
 322                 }
 323
 324                 PrintAndLog("Trying FC: %u; CN: %u", fc, cn);
 325                 (void)getAWIDBits(fmtlen, fc, cn, bs);
 326                 memcpy(c.d.asBytes, bs, size);
 327                 clearCommandBuffer();
 328                 SendCommand(&c);
 329
 330                 msleep(delay);
 331         }
 332         return 0;
 333 }
 334
 335 static command_t CommandTable[] = {
 336         {"help",      CmdHelp,         1, "This help"},
 337         {"fskdemod",  CmdAWIDDemodFSK, 0, "['1'] Realtime AWID FSK demodulator (option '1' for one tag only)"},
 338         {"sim",       CmdAWIDSim,      0, "<Facility-Code> <Card Number> -- AWID tag simulator"},
 339         {"clone",     CmdAWIDClone,    0, "<Facility-Code> <Card Number> <Q5> -- Clone AWID to T55x7"},
 340         {"brute",         CmdAWIDBrute,    0, "<Facility-Code> -- bruteforce card number"},
 341         {NULL, NULL, 0, NULL}
 342 };
 343
 344 int CmdLFAWID(const char *Cmd) {
 345         clearCommandBuffer();
 346         CmdsParse(CommandTable, Cmd);
 347         return 0;
 348 }
 349
 350 int CmdHelp(const char *Cmd) {
 351         CmdsHelp(CommandTable);
 352         return 0;
 353 }