git.zerfleddert.de Git - proxmark3-svn/blobdiff

// the license.

//-----------------------------------------------------------------------------

// Low frequency AWID26 commands

// the license.

//-----------------------------------------------------------------------------

// Low frequency AWID26 commands

+// FSK2a, RF/50, 96 bits (complete)

//-----------------------------------------------------------------------------

+#include "cmdlfawid.h"

+

+#include <string.h>

#include <stdio.h> // sscanf

-#include "proxmark3.h" // Definitions, USB controls, etc

+#include "comms.h" // Definitions, USB controls, etc

#include "ui.h" // PrintAndLog

#include "cmdparser.h" // CmdsParse, CmdsHelp

#include "ui.h" // PrintAndLog

#include "cmdparser.h" // CmdsParse, CmdsHelp

-#include "cmdlfawid.h" // AWID function declarations

-#include "lfdemod.h" // parityTest

+#include "lfdemod.h" // parityTest +

+#include "util.h" // weigandparity

+#include "protocols.h" // for T55xx config register definitions

+#include "cmddata.h" // for printDemod and demodbuffer commands

+#include "graph.h" // for getFromGraphBuff cmds

+#include "cmdmain.h"

static int CmdHelp(const char *Cmd);

-

-int usage_lf_awid_fskdemod(void) {

+int usage_lf_awid_read(void) {

PrintAndLog("Enables AWID26 compatible reader mode printing details of scanned AWID26 tags.");

PrintAndLog("By default, values are printed and logged until the button is pressed or another USB command is issued.");

PrintAndLog("If the ['1'] option is provided, reader mode is exited after reading a single AWID26 card.");

PrintAndLog("");

PrintAndLog("Enables AWID26 compatible reader mode printing details of scanned AWID26 tags.");

PrintAndLog("By default, values are printed and logged until the button is pressed or another USB command is issued.");

PrintAndLog("If the ['1'] option is provided, reader mode is exited after reading a single AWID26 card.");

PrintAndLog("");

- PrintAndLog("Usage: lf awid fskdemod ['1']");

- PrintAndLog(" Options : ");

+ PrintAndLog("Usage: lf awid read ['1']");

+ PrintAndLog("Options : ");

PrintAndLog(" 1 : (optional) stop after reading a single card");

PrintAndLog("");

PrintAndLog(" 1 : (optional) stop after reading a single card");

PrintAndLog("");

- PrintAndLog(" sample : lf awid fskdemod");

- PrintAndLog(" : lf awid fskdemod 1");

+ PrintAndLog("Samples : lf awid read");

+ PrintAndLog(" : lf awid read 1");

return 0;

}

return 0;

}

PrintAndLog("Per AWID26 format, the facility-code is 8-bit and the card number is 16-bit. Larger values are truncated.");

PrintAndLog("");

PrintAndLog("Usage: lf awid sim <Facility-Code> <Card-Number>");

PrintAndLog("Per AWID26 format, the facility-code is 8-bit and the card number is 16-bit. Larger values are truncated.");

PrintAndLog("");

PrintAndLog("Usage: lf awid sim <Facility-Code> <Card-Number>");

- PrintAndLog(" Options : ");

+ PrintAndLog("Options : ");

PrintAndLog(" <Facility-Code> : 8-bit value representing the AWID facility code");

PrintAndLog(" <Card Number> : 16-bit value representing the AWID card number");

PrintAndLog("");

PrintAndLog(" <Facility-Code> : 8-bit value representing the AWID facility code");

PrintAndLog(" <Card Number> : 16-bit value representing the AWID card number");

PrintAndLog("");

- PrintAndLog(" sample : lf awid sim 224 1337");

+ PrintAndLog("Sample : lf awid sim 224 1337");

return 0;

}

return 0;

}

PrintAndLog("Per AWID26 format, the facility-code is 8-bit and the card number is 16-bit. Larger values are truncated.");

PrintAndLog("");

PrintAndLog("Usage: lf awid clone <Facility-Code> <Card-Number>");

PrintAndLog("Per AWID26 format, the facility-code is 8-bit and the card number is 16-bit. Larger values are truncated.");

PrintAndLog("");

PrintAndLog("Usage: lf awid clone <Facility-Code> <Card-Number>");

- PrintAndLog(" Options : ");

+ PrintAndLog("Options : ");

PrintAndLog(" <Facility-Code> : 8-bit value representing the AWID facility code");

PrintAndLog(" <Card Number> : 16-bit value representing the AWID card number");

PrintAndLog(" <Facility-Code> : 8-bit value representing the AWID facility code");

PrintAndLog(" <Card Number> : 16-bit value representing the AWID card number");

+ PrintAndLog(" Q5 : optional - clone to Q5 (T5555) instead of T55x7 chip");

PrintAndLog("");

- PrintAndLog(" sample : lf awid clone 224 1337");

+ PrintAndLog("Sample : lf awid clone 224 1337");

return 0;

}

return 0;

}

-int CmdAWIDDemodFSK(const char *Cmd)

-{

+int CmdAWIDReadFSK(const char *Cmd) {

int findone=0;

- if(Cmd[0]=='1') findone=1;

- if (Cmd[0]=='h' || Cmd[0] == 'H') return usage_lf_awid_fskdemod();

- UsbCommand c={CMD_AWID_DEMOD_FSK};

- c.arg[0]=findone;

+ if (Cmd[0] == 'h' || Cmd[0] == 'H') return usage_lf_awid_read();

+ if (Cmd[0] == '1') findone = 1;

+

+ UsbCommand c = {CMD_AWID_DEMOD_FSK, {findone, 0, 0}};

+ clearCommandBuffer();

SendCommand(&c);

return 0;

}

SendCommand(&c);

return 0;

}

-

-int getAWIDBits(unsigned int fc, unsigned int cn, uint8_t *AWIDBits)

+//by marshmellow

+//AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)

+//print full AWID Prox ID and some bit format details if found

+int CmdFSKdemodAWID(const char *Cmd)

{

- int i;

- uint32_t fcode=(fc & 0x000000FF), cnum=(cn & 0x0000FFFF), uBits=0;

- if (fcode != fc)

- PrintAndLog("NOTE: Facility code truncated for AWID26 format (8-bit facility code)");

- if (cnum!=cn)

- PrintAndLog("NOTE: Card number was truncated for AWID26 format (16-bit card number)");

-

- AWIDBits[0] = 0x01; // 6-bit Preamble with 2 parity bits

- AWIDBits[1] = 0x1D; // First byte from card format (26-bit) plus parity bits

- AWIDBits[2] = 0x80; // Set the next two bits as 0b10 to finish card format

- uBits = (fcode<<4) + (cnum>>12);

- if (!parityTest(uBits,12,0))

- AWIDBits[2] |= (1<<5); // If not already even parity, set bit to make even

- uBits = AWIDBits[2]>>5;

- if (!parityTest(uBits, 3, 1))

- AWIDBits[2] |= (1<<4);

- uBits = fcode>>5; // first 3 bits of facility-code

- AWIDBits[2] += (uBits<<1);

- if (!parityTest(uBits, 3, 1))

- AWIDBits[2]++; // Set parity bit to make odd parity

- uBits = (fcode & 0x1C)>>2;

- AWIDBits[3] = 0;

- if (!parityTest(uBits,3,1))

- AWIDBits[3] |= (1<<4);

- AWIDBits[3] += (uBits<<5);

- uBits = ((fcode & 0x3)<<1) + ((cnum & 0x8000)>>15); // Grab/shift 2 LSBs from facility code and add shifted MSB from cardnum

- if (!parityTest(uBits,3,1))

- AWIDBits[3]++; // Set LSB for parity

- AWIDBits[3]+= (uBits<<1);

- uBits = (cnum & 0x7000)>>12;

- AWIDBits[4] = uBits<<5;

- if (!parityTest(uBits,3,1))

- AWIDBits[4] |= (1<<4);

- uBits = (cnum & 0x0E00)>>9;

- AWIDBits[4] += (uBits<<1);

- if (!parityTest(uBits,3,1))

- AWIDBits[4]++; // Set LSB for parity

- uBits = (cnum & 0x1C0)>>6; // Next bits from card number

- AWIDBits[5]=(uBits<<5);

- if (!parityTest(uBits,3,1))

- AWIDBits[5] |= (1<<4); // Set odd parity bit as needed

- uBits = (cnum & 0x38)>>3;

- AWIDBits[5]+= (uBits<<1);

- if (!parityTest(uBits,3,1))

- AWIDBits[5]++; // Set odd parity bit as needed

- uBits = (cnum & 0x7); // Last three bits from card number!

- AWIDBits[6] = (uBits<<5);

- if (!parityTest(uBits,3,1))

- AWIDBits[6] |= (1<<4);

- uBits = (cnum & 0x0FFF);

- if (!parityTest(uBits,12,1))

- AWIDBits[6] |= (1<<3);

- else

- AWIDBits[6]++;

- for (i = 7; i<12; i++)

- AWIDBits[i]=0x11;

+ uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};

+ size_t size = getFromGraphBuf(BitStream);

+ if (size==0) return 0;

+

+ int waveIdx = 0;

+ //get binary from fsk wave

+ int idx = AWIDdemodFSK(BitStream, &size, &waveIdx);

+ if (idx<=0){

+ if (g_debugMode){

+ if (idx == -1)

+ PrintAndLog("DEBUG: Error - not enough samples");

+ else if (idx == -2)

+ PrintAndLog("DEBUG: Error - only noise found");

+ else if (idx == -3)

+ PrintAndLog("DEBUG: Error - problem during FSK demod");

+ else if (idx == -4)

+ PrintAndLog("DEBUG: Error - AWID preamble not found");

+ else if (idx == -5)

+ PrintAndLog("DEBUG: Error - Size not correct: %d", size);

+ else

+ PrintAndLog("DEBUG: Error %d",idx);

+ }

+ return 0;

+ }

+

+ // Index map

+ // 0 10 20 30 40 50 60

+ // | | | | | | |

+ // 01234567 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 - to 96

+ // -----------------------------------------------------------------------------

+ // 00000001 000 1 110 1 101 1 011 1 101 1 010 0 000 1 000 1 010 0 001 0 110 1 100 0 000 1 000 1

+ // premable bbb o bbb o bbw o fff o fff o ffc o ccc o ccc o ccc o ccc o ccc o wxx o xxx o xxx o - to 96

+ // |---26 bit---| |-----117----||-------------142-------------|

+ // b = format bit len, o = odd parity of last 3 bits

+ // f = facility code, c = card number

+ // w = wiegand parity

+ // (26 bit format shown)

+

+ //get raw ID before removing parities

+ uint32_t rawLo = bytebits_to_byte(BitStream+idx+64,32);

+ uint32_t rawHi = bytebits_to_byte(BitStream+idx+32,32);

+ uint32_t rawHi2 = bytebits_to_byte(BitStream+idx,32);

+ setDemodBuf(BitStream,96,idx);

+ setClockGrid(50, waveIdx + (idx*50));

+

+ size = removeParity(BitStream, idx+8, 4, 1, 88);

+ if (size != 66){

+ if (g_debugMode) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");

+ return 0;

+ }

+ // ok valid card found!

+

+ // Index map

+ // 0 10 20 30 40 50 60

+ // | | | | | | |

+ // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456

+ // -----------------------------------------------------------------------------

+ // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000

+ // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

+ // |26 bit| |-117--| |-----142------|

+ // b = format bit len, o = odd parity of last 3 bits

+ // f = facility code, c = card number

+ // w = wiegand parity

+ // (26 bit format shown)

+

+ uint32_t fc = 0;

+ uint32_t cardnum = 0;

+ uint32_t code1 = 0;

+ uint32_t code2 = 0;

+ uint8_t fmtLen = bytebits_to_byte(BitStream,8);

+ if (fmtLen==26){

+ fc = bytebits_to_byte(BitStream+9, 8);

+ cardnum = bytebits_to_byte(BitStream+17, 16);

+ code1 = bytebits_to_byte(BitStream+8,fmtLen);

+ PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, fc, cardnum, code1, rawHi2, rawHi, rawLo);

+ } else {

+ cardnum = bytebits_to_byte(BitStream+8+(fmtLen-17), 16);

+ if (fmtLen>32){

+ code1 = bytebits_to_byte(BitStream+8,fmtLen-32);

+ code2 = bytebits_to_byte(BitStream+8+(fmtLen-32),32);

+ PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, code2, rawHi2, rawHi, rawLo);

+ } else{

+ code1 = bytebits_to_byte(BitStream+8,fmtLen);

+ PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen, cardnum, code1, rawHi2, rawHi, rawLo);

+ }

+ if (g_debugMode){

+ PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx, 96);

+ printDemodBuff();

+ }

+ //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands

return 1;

}

return 1;

}

-int CmdAWIDSim(const char *Cmd)

-{

- uint32_t fcode = 0, cnum = 0, fc=0, cn=0, i=0;

- uint8_t *BS, BitStream[12];

+//refactored by marshmellow

+int getAWIDBits(uint32_t fc, uint32_t cn, uint8_t *AWIDBits) {

+ uint8_t pre[66];

+ memset(pre, 0, sizeof(pre));

+ AWIDBits[7]=1;

+ num_to_bytebits(26, 8, pre);

+

+ uint8_t wiegand[24];

+ num_to_bytebits(fc, 8, wiegand);

+ num_to_bytebits(cn, 16, wiegand+8);

+

+ wiegand_add_parity(pre+8, wiegand, 24);

+

+ size_t bitLen = addParity(pre, AWIDBits+8, 66, 4, 1);

+ if (bitLen != 88) return 0;

+ //for (uint8_t i = 0; i<3; i++){

+ // PrintAndLog("DEBUG: %08X", bytebits_to_byte(AWIDBits+(32*i),32));

+ //}

+ return 1;

+}

+

+int CmdAWIDSim(const char *Cmd) {

+ uint32_t fcode = 0, cnum = 0, fc=0, cn=0;

+ uint8_t BitStream[96];

+ uint8_t *bs = BitStream;

+ size_t size = sizeof(BitStream);

+ memset(bs, 0, size);

+

uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8

uint64_t arg2 = 50; // clk RF/50 invert=0

uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8

uint64_t arg2 = 50; // clk RF/50 invert=0

- BS = BitStream;

- if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) {

- return usage_lf_awid_sim();

- }

+

+ if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_awid_sim();

+

+ fcode = (fc & 0x000000FF);

+ cnum = (cn & 0x0000FFFF);

+

+ if (fc != fcode) PrintAndLog("Facility-Code (%u) truncated to 8-bits: %u",fc,fcode);

+ if (cn != cnum) PrintAndLog("Card number (%u) truncated to 16-bits: %u",cn,cnum);

- fcode=(fc & 0x000000FF);

- cnum=(cn & 0x0000FFFF);

- if (fc!=fcode)

- PrintAndLog("Facility-Code (%u) truncated to 8-bits: %u",fc,fcode);

- if (cn!=cnum)

- PrintAndLog("Card number (%u) truncated to 16-bits: %u",cn,cnum);

PrintAndLog("Emulating AWID26 -- FC: %u; CN: %u\n",fcode,cnum);

PrintAndLog("Press pm3-button to abort simulation or run another command");

PrintAndLog("Emulating AWID26 -- FC: %u; CN: %u\n",fcode,cnum);

PrintAndLog("Press pm3-button to abort simulation or run another command");

+

+ if (!getAWIDBits(fc, cn, bs)) {

+ PrintAndLog("Error with tag bitstream generation.");

+ return 1;

+ }

// AWID uses: fcHigh: 10, fcLow: 8, clk: 50, invert: 0

- if (getAWIDBits(fc, cn, BS)) {

- PrintAndLog("Running 'lf simfsk c 50 H 10 L 8 d %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x'",

- BS[0],BS[1],BS[2],BS[3],BS[4],BS[5],BS[6],

- BS[7],BS[8],BS[9],BS[10],BS[11]);

- } else

- PrintAndLog("Error with tag bitstream generation.");

- UsbCommand c;

- c.cmd = CMD_FSK_SIM_TAG;

- c.arg[0] = arg1; // fcHigh<<8 + fcLow

- c.arg[1] = arg2; // Inversion and clk setting

- c.arg[2] = 96; // Bitstream length: 96-bits == 12 bytes

- for (i=0; i < 96; i++)

- c.d.asBytes[i] = (BS[i/8] & (1<<(7-(i%8))))?1:0;

+ UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};

+ memcpy(c.d.asBytes, bs, size);

+ clearCommandBuffer();

SendCommand(&c);

return 0;

}

SendCommand(&c);

return 0;

}

-int CmdAWIDClone(const char *Cmd)

-{

- uint32_t fc=0,cn=0,blocks[4] = {0x00107060, 0, 0, 0x11111111}, i=0;

- uint8_t BitStream[12];

- uint8_t *BS=BitStream;

- UsbCommand c;

-

+int CmdAWIDClone(const char *Cmd) {

+ uint32_t blocks[4] = {T55x7_MODULATION_FSK2a | T55x7_BITRATE_RF_50 | 3<<T55x7_MAXBLOCK_SHIFT, 0, 0, 0};

+ uint32_t fc=0,cn=0;

+ uint8_t BitStream[96];

+ uint8_t *bs=BitStream;

+ memset(bs,0,sizeof(BitStream));

- if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) {

- return usage_lf_awid_clone();

- }

+ if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_awid_clone();

+

+ if (param_getchar(Cmd, 3) == 'Q' || param_getchar(Cmd, 3) == 'q')

+ blocks[0] = T5555_MODULATION_FSK2 | T5555_INVERT_OUTPUT | ((50-2)>>1)<<T5555_BITRATE_SHIFT | 3<<T5555_MAXBLOCK_SHIFT;

if ((fc & 0xFF) != fc) {

fc &= 0xFF;

if ((fc & 0xFF) != fc) {

fc &= 0xFF;

cn &= 0xFFFF;

PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn);

}

cn &= 0xFFFF;

PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn);

}

- if (getAWIDBits(fc,cn,BS)) {

- PrintAndLog("Preparing to clone AWID26 to T55x7 with FC: %u, CN: %u (Raw: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x)",

- fc,cn, BS[0],BS[1],BS[2],BS[3],BS[4],BS[5],BS[6],BS[7],BS[8],BS[9],BS[10],BS[11]);

- blocks[1] = (BS[0]<<24) + (BS[1]<<16) + (BS[2]<<8) + (BS[3]);

- blocks[2] = (BS[4]<<24) + (BS[5]<<16) + (BS[6]<<8) + (BS[7]);

- PrintAndLog("Block 0: 0x%08x", blocks[0]);

- PrintAndLog("Block 1: 0x%08x", blocks[1]);

- PrintAndLog("Block 2: 0x%08x", blocks[2]);

- PrintAndLog("Block 3: 0x%08x", blocks[3]);

- for (i=0; i<4; i++) {

- c.cmd = CMD_T55XX_WRITE_BLOCK;

- c.arg[0] = blocks[i];

- c.arg[1] = i;

- c.arg[2] = 0;

- SendCommand(&c);

+

+ if ( !getAWIDBits(fc, cn, bs)) {

+ PrintAndLog("Error with tag bitstream generation.");

+ return 1;

+ }

+

+ blocks[1] = bytebits_to_byte(bs,32);

+ blocks[2] = bytebits_to_byte(bs+32,32);

+ blocks[3] = bytebits_to_byte(bs+64,32);

+

+ PrintAndLog("Preparing to clone AWID26 to T55x7 with FC: %u, CN: %u",

+ fc, cn);

+ PrintAndLog("Blk | Data ");

+ PrintAndLog("----+------------");

+ PrintAndLog(" 00 | 0x%08x", blocks[0]);

+ PrintAndLog(" 01 | 0x%08x", blocks[1]);

+ PrintAndLog(" 02 | 0x%08x", blocks[2]);

+ PrintAndLog(" 03 | 0x%08x", blocks[3]);

+

+ UsbCommand resp;

+ UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};

+

+ for (uint8_t i=0; i<4; i++) {

+ c.cmd = CMD_T55XX_WRITE_BLOCK;

+ c.arg[0] = blocks[i];

+ c.arg[1] = i;

+ c.arg[2] = 0;

+ clearCommandBuffer();

+ SendCommand(&c);

+ if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){

+ PrintAndLog("Error occurred, device did not respond during write operation.");

+ return -1;

}

+

}

return 0;

}

return 0;

}

-static command_t CommandTable[] =

-{

- {"help", CmdHelp, 1, "This help"},

- {"fskdemod", CmdAWIDDemodFSK, 0, "['1'] Realtime AWID FSK demodulator (option '1' for one tag only)"},

+static command_t CommandTable[] = {

+ {"help", CmdHelp, 1, "This help"},

+ {"demod", CmdFSKdemodAWID, 1, "Demodulate an AWID FSK tag from the GraphBuffer"},

+ {"read", CmdAWIDReadFSK, 0, "['1'] Realtime AWID FSK read from the antenna (option '1' for one tag only)"},

{"sim", CmdAWIDSim, 0, "<Facility-Code> <Card Number> -- AWID tag simulator"},

- {"clone", CmdAWIDClone, 0, "<Facility-Code> <Card Number> -- Clone AWID to T55x7 (tag must be in range of antenna)"},

+ {"clone", CmdAWIDClone, 0, "<Facility-Code> <Card Number> <Q5> -- Clone AWID to T55x7 (tag must be in range of antenna)"},

{NULL, NULL, 0, NULL}

};

{NULL, NULL, 0, NULL}

};

-int CmdLFAWID(const char *Cmd)

-{

+int CmdLFAWID(const char *Cmd) {

CmdsParse(CommandTable, Cmd);

return 0;

}

CmdsParse(CommandTable, Cmd);

return 0;

}

-int CmdHelp(const char *Cmd)

-{

+int CmdHelp(const char *Cmd) {

CmdsHelp(CommandTable);

return 0;

}

CmdsHelp(CommandTable);

return 0;

}