// the license.
//-----------------------------------------------------------------------------
// Low frequency AWID26 commands
+// FSK2a, RF/50, 96 bits (complete)
//-----------------------------------------------------------------------------
+#include <string.h>
#include <stdio.h> // sscanf
#include "proxmark3.h" // Definitions, USB controls, etc
+#include "cmdlfawid.h"
#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 CmdAWIDDemodFSK(const char *Cmd)
-{
- int findone=0;
- if(Cmd[0]=='1') findone=1;
- UsbCommand c={CMD_AWID_DEMOD_FSK};
- c.arg[0]=findone;
- SendCommand(&c);
- return 0;
+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("Usage: lf awid read ['1']");
+ PrintAndLog("Options : ");
+ PrintAndLog(" 1 : (optional) stop after reading a single card");
+ PrintAndLog("");
+ PrintAndLog("Samples : lf awid read");
+ PrintAndLog(" : lf awid read 1");
+ return 0;
}
-int getAWIDBits(unsigned int fc, unsigned int cn, uint8_t *AWIDBits)
-{
- 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;
- return 1;
+int usage_lf_awid_sim(void) {
+ PrintAndLog("Enables simulation of AWID26 card with specified facility-code and card number.");
+ PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
+ 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(" <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");
+ return 0;
}
-int CmdAWIDSim(const char *Cmd)
-{
- uint32_t fcode = 0, cnum = 0, fc=0, cn=0, i=0;
- uint8_t *BS, BitStream[12];
- 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) {
- PrintAndLog("Usage: lf awid sim <facility-code> <card number>");
- return 0;
- }
-
- 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");
- // 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;
- SendCommand(&c);
- return 0;
+int usage_lf_awid_clone(void) {
+ PrintAndLog("Enables cloning of AWID26 card with specified facility-code and card number onto T55x7.");
+ PrintAndLog("The T55x7 must be on the antenna when issuing this command. T55x7 blocks are calculated and printed in the process.");
+ 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(" <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");
+ return 0;
}
-int CmdAWIDClone(const char *Cmd)
+int CmdAWIDReadFSK(const char *Cmd) {
+ int findone=0;
+ 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;
+}
+//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)
{
- uint32_t fc=0,cn=0,blocks[4] = {0x00107060, 0, 0, 0x11111111}, i=0;
- uint8_t BitStream[12];
- uint8_t *BS=BitStream;
- UsbCommand c;
-
-
- if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) {
- PrintAndLog("Usage: lf awid clone <facility-code> <card number>");
- return 0;
- }
-
- if ((fc & 0xFF) != fc) {
- fc &= 0xFF;
- PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc);
- }
- if ((cn & 0xFFFF) != 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);
- }
- }
- return 0;
+ 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;
}
-static command_t CommandTable[] =
-{
- {"help", CmdHelp, 1, "This help"},
- {"fskdemod", CmdAWIDDemodFSK, 0, "['1'] Realtime AWID FSK demodulator (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)"},
- {NULL, NULL, 0, NULL}
+//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
+
+ 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);
+
+ 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
+ UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};
+ memcpy(c.d.asBytes, bs, size);
+ clearCommandBuffer();
+ SendCommand(&c);
+ return 0;
+}
+
+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 (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;
+ PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc);
+ }
+ if ((cn & 0xFFFF) != cn) {
+ cn &= 0xFFFF;
+ PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn);
+ }
+
+ 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;
+}
+
+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> <Q5> -- Clone AWID to T55x7 (tag must be in range of antenna)"},
+ {NULL, NULL, 0, NULL}
};
-int CmdLFAWID(const char *Cmd)
-{
- CmdsParse(CommandTable, Cmd);
- return 0;
+int CmdLFAWID(const char *Cmd) {
+ CmdsParse(CommandTable, Cmd);
+ return 0;
}
-int CmdHelp(const char *Cmd)
-{
- CmdsHelp(CommandTable);
- return 0;
+int CmdHelp(const char *Cmd) {
+ CmdsHelp(CommandTable);
+ return 0;
}
projects / proxmark3-svn / blobdiff