mirror of
https://github.com/Proxmark/proxmark3.git
synced 2025-08-20 13:23:25 -07:00
lf viking build / lf awid refactor / lfdemod.c debugMode==2
lf viking from other users - just put my spin on it lf awid refactored code - possible to make it not 26bit specific now with minor chanages lfdemod.c now supports extra debug printing if `data setdebug` = 2 when not on device (on client not arm)
This commit is contained in:
marshmellow42
parent
6fe5c94bda
commit
709665b5d1
17 changed files with 535 additions and 377 deletions
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@ -16,9 +16,11 @@
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#include "cmdparser.h" // CmdsParse, CmdsHelp
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#include "cmdlfawid.h" // AWID function declarations
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#include "lfdemod.h" // parityTest
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#include "util.h" // weigandparity
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#include "protocols.h" // for T55xx config register definitions
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#include "cmdmain.h"
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static int CmdHelp(const char *Cmd);
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static int CmdHelp(const char *Cmd);
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int usage_lf_awid_fskdemod(void) {
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PrintAndLog("Enables AWID26 compatible reader mode printing details of scanned AWID26 tags.");
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@ -26,11 +28,11 @@ int usage_lf_awid_fskdemod(void) {
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PrintAndLog("If the ['1'] option is provided, reader mode is exited after reading a single AWID26 card.");
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PrintAndLog("");
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PrintAndLog("Usage: lf awid fskdemod ['1']");
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PrintAndLog(" Options : ");
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PrintAndLog("Options : ");
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PrintAndLog(" 1 : (optional) stop after reading a single card");
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PrintAndLog("");
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PrintAndLog(" sample : lf awid fskdemod");
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PrintAndLog(" : lf awid fskdemod 1");
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PrintAndLog("Samples : lf awid fskdemod");
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PrintAndLog(" : lf awid fskdemod 1");
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return 0;
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}
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@ -40,11 +42,11 @@ int usage_lf_awid_sim(void) {
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PrintAndLog("Per AWID26 format, the facility-code is 8-bit and the card number is 16-bit. Larger values are truncated.");
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PrintAndLog("");
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PrintAndLog("Usage: lf awid sim <Facility-Code> <Card-Number>");
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PrintAndLog(" Options : ");
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PrintAndLog("Options : ");
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PrintAndLog(" <Facility-Code> : 8-bit value representing the AWID facility code");
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PrintAndLog(" <Card Number> : 16-bit value representing the AWID card number");
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PrintAndLog("");
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PrintAndLog(" sample : lf awid sim 224 1337");
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PrintAndLog("Sample : lf awid sim 224 1337");
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return 0;
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}
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@ -54,133 +56,91 @@ int usage_lf_awid_clone(void) {
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PrintAndLog("Per AWID26 format, the facility-code is 8-bit and the card number is 16-bit. Larger values are truncated.");
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PrintAndLog("");
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PrintAndLog("Usage: lf awid clone <Facility-Code> <Card-Number>");
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PrintAndLog(" Options : ");
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PrintAndLog("Options : ");
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PrintAndLog(" <Facility-Code> : 8-bit value representing the AWID facility code");
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PrintAndLog(" <Card Number> : 16-bit value representing the AWID card number");
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PrintAndLog(" Q5 : optional - clone to Q5 (T5555) instead of T55x7 chip");
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PrintAndLog("");
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PrintAndLog(" sample : lf awid clone 224 1337");
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PrintAndLog("Sample : lf awid clone 224 1337");
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return 0;
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}
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int CmdAWIDDemodFSK(const char *Cmd)
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{
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int CmdAWIDDemodFSK(const char *Cmd) {
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int findone=0;
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if(Cmd[0]=='1') findone=1;
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if (Cmd[0]=='h' || Cmd[0] == 'H') return usage_lf_awid_fskdemod();
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UsbCommand c={CMD_AWID_DEMOD_FSK};
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c.arg[0]=findone;
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if (Cmd[0] == 'h' || Cmd[0] == 'H') return usage_lf_awid_fskdemod();
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if (Cmd[0] == '1') findone = 1;
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UsbCommand c = {CMD_AWID_DEMOD_FSK, {findone, 0, 0}};
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clearCommandBuffer();
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SendCommand(&c);
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return 0;
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}
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int getAWIDBits(unsigned int fc, unsigned int cn, uint8_t *AWIDBits)
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{
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int i;
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uint32_t fcode=(fc & 0x000000FF), cnum=(cn & 0x0000FFFF), uBits=0;
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if (fcode != fc)
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PrintAndLog("NOTE: Facility code truncated for AWID26 format (8-bit facility code)");
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if (cnum!=cn)
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PrintAndLog("NOTE: Card number was truncated for AWID26 format (16-bit card number)");
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//refactored by marshmellow
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int getAWIDBits(uint32_t fc, uint32_t cn, uint8_t *AWIDBits) {
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uint8_t pre[66];
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memset(pre, 0, sizeof(pre));
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AWIDBits[7]=1;
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num_to_bytebits(26, 8, pre);
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AWIDBits[0] = 0x01; // 6-bit Preamble with 2 parity bits
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AWIDBits[1] = 0x1D; // First byte from card format (26-bit) plus parity bits
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AWIDBits[2] = 0x80; // Set the next two bits as 0b10 to finish card format
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uBits = (fcode<<4) + (cnum>>12);
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if (!parityTest(uBits,12,0))
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AWIDBits[2] |= (1<<5); // If not already even parity, set bit to make even
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uBits = AWIDBits[2]>>5;
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if (!parityTest(uBits, 3, 1))
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AWIDBits[2] |= (1<<4);
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uBits = fcode>>5; // first 3 bits of facility-code
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AWIDBits[2] += (uBits<<1);
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if (!parityTest(uBits, 3, 1))
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AWIDBits[2]++; // Set parity bit to make odd parity
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uBits = (fcode & 0x1C)>>2;
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AWIDBits[3] = 0;
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if (!parityTest(uBits,3,1))
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AWIDBits[3] |= (1<<4);
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AWIDBits[3] += (uBits<<5);
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uBits = ((fcode & 0x3)<<1) + ((cnum & 0x8000)>>15); // Grab/shift 2 LSBs from facility code and add shifted MSB from cardnum
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if (!parityTest(uBits,3,1))
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AWIDBits[3]++; // Set LSB for parity
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AWIDBits[3]+= (uBits<<1);
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uBits = (cnum & 0x7000)>>12;
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AWIDBits[4] = uBits<<5;
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if (!parityTest(uBits,3,1))
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AWIDBits[4] |= (1<<4);
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uBits = (cnum & 0x0E00)>>9;
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AWIDBits[4] += (uBits<<1);
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if (!parityTest(uBits,3,1))
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AWIDBits[4]++; // Set LSB for parity
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uBits = (cnum & 0x1C0)>>6; // Next bits from card number
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AWIDBits[5]=(uBits<<5);
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if (!parityTest(uBits,3,1))
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AWIDBits[5] |= (1<<4); // Set odd parity bit as needed
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uBits = (cnum & 0x38)>>3;
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AWIDBits[5]+= (uBits<<1);
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if (!parityTest(uBits,3,1))
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AWIDBits[5]++; // Set odd parity bit as needed
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uBits = (cnum & 0x7); // Last three bits from card number!
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AWIDBits[6] = (uBits<<5);
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if (!parityTest(uBits,3,1))
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AWIDBits[6] |= (1<<4);
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uBits = (cnum & 0x0FFF);
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if (!parityTest(uBits,12,1))
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AWIDBits[6] |= (1<<3);
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else
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AWIDBits[6]++;
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for (i = 7; i<12; i++)
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AWIDBits[i]=0x11;
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uint8_t wiegand[24];
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num_to_bytebits(fc, 8, wiegand);
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num_to_bytebits(cn, 16, wiegand+8);
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wiegand_add_parity(pre+8, wiegand, 24);
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size_t bitLen = addParity(pre, AWIDBits+8, 66, 4, 1);
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if (bitLen != 88) return 0;
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//for (uint8_t i = 0; i<3; i++){
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// PrintAndLog("DEBUG: %08X", bytebits_to_byte(AWIDBits+(32*i),32));
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//}
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return 1;
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}
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int CmdAWIDSim(const char *Cmd)
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{
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uint32_t fcode = 0, cnum = 0, fc=0, cn=0, i=0;
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uint8_t *BS, BitStream[12];
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int CmdAWIDSim(const char *Cmd) {
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uint32_t fcode = 0, cnum = 0, fc=0, cn=0;
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uint8_t BitStream[96];
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uint8_t *bs = BitStream;
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size_t size = sizeof(BitStream);
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memset(bs, 0, size);
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uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8
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uint64_t arg2 = 50; // clk RF/50 invert=0
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BS = BitStream;
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if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) {
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return usage_lf_awid_sim();
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}
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if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_awid_sim();
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fcode = (fc & 0x000000FF);
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cnum = (cn & 0x0000FFFF);
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if (fc != fcode) PrintAndLog("Facility-Code (%u) truncated to 8-bits: %u",fc,fcode);
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if (cn != cnum) PrintAndLog("Card number (%u) truncated to 16-bits: %u",cn,cnum);
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fcode=(fc & 0x000000FF);
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cnum=(cn & 0x0000FFFF);
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if (fc!=fcode)
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PrintAndLog("Facility-Code (%u) truncated to 8-bits: %u",fc,fcode);
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if (cn!=cnum)
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PrintAndLog("Card number (%u) truncated to 16-bits: %u",cn,cnum);
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PrintAndLog("Emulating AWID26 -- FC: %u; CN: %u\n",fcode,cnum);
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PrintAndLog("Press pm3-button to abort simulation or run another command");
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if (!getAWIDBits(fc, cn, bs)) {
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PrintAndLog("Error with tag bitstream generation.");
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return 1;
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}
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// AWID uses: fcHigh: 10, fcLow: 8, clk: 50, invert: 0
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if (getAWIDBits(fc, cn, BS)) {
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PrintAndLog("Running 'lf simfsk c 50 H 10 L 8 d %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x'",
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BS[0],BS[1],BS[2],BS[3],BS[4],BS[5],BS[6],
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BS[7],BS[8],BS[9],BS[10],BS[11]);
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} else
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PrintAndLog("Error with tag bitstream generation.");
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UsbCommand c;
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c.cmd = CMD_FSK_SIM_TAG;
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c.arg[0] = arg1; // fcHigh<<8 + fcLow
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c.arg[1] = arg2; // Inversion and clk setting
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c.arg[2] = 96; // Bitstream length: 96-bits == 12 bytes
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for (i=0; i < 96; i++)
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c.d.asBytes[i] = (BS[i/8] & (1<<(7-(i%8))))?1:0;
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UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};
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memcpy(c.d.asBytes, bs, size);
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clearCommandBuffer();
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SendCommand(&c);
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return 0;
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}
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int CmdAWIDClone(const char *Cmd)
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{
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uint32_t fc=0,cn=0,blocks[4] = {0x00107060, 0, 0, 0x11111111}, i=0;
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uint8_t BitStream[12];
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uint8_t *BS=BitStream;
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UsbCommand c, resp;
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int CmdAWIDClone(const char *Cmd) {
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uint32_t blocks[4] = {T55x7_MODULATION_FSK2a | T55x7_BITRATE_RF_50 | 3<<T55x7_MAXBLOCK_SHIFT, 0, 0, 0};
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uint32_t fc=0,cn=0;
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uint8_t BitStream[96];
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uint8_t *bs=BitStream;
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memset(bs,0,sizeof(BitStream));
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if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) {
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return usage_lf_awid_clone();
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}
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if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_awid_clone();
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if (param_getchar(Cmd, 3) == 'Q' || param_getchar(Cmd, 3) == 'q')
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blocks[0] = T5555_MODULATION_FSK2 | T5555_INVERT_OUTPUT | 50<<T5555_BITRATE_SHIFT | 3<<T5555_MAXBLOCK_SHIFT;
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if ((fc & 0xFF) != fc) {
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fc &= 0xFF;
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@ -190,48 +150,58 @@ int CmdAWIDClone(const char *Cmd)
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cn &= 0xFFFF;
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PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn);
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}
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if (getAWIDBits(fc,cn,BS)) {
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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)",
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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]);
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blocks[1] = (BS[0]<<24) + (BS[1]<<16) + (BS[2]<<8) + (BS[3]);
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blocks[2] = (BS[4]<<24) + (BS[5]<<16) + (BS[6]<<8) + (BS[7]);
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PrintAndLog("Block 0: 0x%08x", blocks[0]);
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PrintAndLog("Block 1: 0x%08x", blocks[1]);
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PrintAndLog("Block 2: 0x%08x", blocks[2]);
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PrintAndLog("Block 3: 0x%08x", blocks[3]);
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for (i=0; i<4; i++) {
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c.cmd = CMD_T55XX_WRITE_BLOCK;
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c.arg[0] = blocks[i];
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c.arg[1] = i;
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c.arg[2] = 0;
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SendCommand(&c);
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if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){
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PrintAndLog("Error occurred, device did not respond during write operation.");
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return -1;
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}
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if ( !getAWIDBits(fc, cn, bs)) {
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PrintAndLog("Error with tag bitstream generation.");
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return 1;
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}
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blocks[1] = bytebits_to_byte(bs,32);
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blocks[2] = bytebits_to_byte(bs+32,32);
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blocks[3] = bytebits_to_byte(bs+64,32);
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PrintAndLog("Preparing to clone AWID26 to T55x7 with FC: %u, CN: %u",
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fc, cn);
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PrintAndLog("Blk | Data ");
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PrintAndLog("----+------------");
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PrintAndLog(" 00 | 0x%08x", blocks[0]);
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PrintAndLog(" 01 | 0x%08x", blocks[1]);
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PrintAndLog(" 02 | 0x%08x", blocks[2]);
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PrintAndLog(" 03 | 0x%08x", blocks[3]);
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UsbCommand resp;
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UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};
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for (uint8_t i=0; i<4; i++) {
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c.cmd = CMD_T55XX_WRITE_BLOCK;
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c.arg[0] = blocks[i];
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c.arg[1] = i;
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c.arg[2] = 0;
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clearCommandBuffer();
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SendCommand(&c);
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if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){
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PrintAndLog("Error occurred, device did not respond during write operation.");
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return -1;
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}
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}
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return 0;
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}
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static command_t CommandTable[] =
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{
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{"help", CmdHelp, 1, "This help"},
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static command_t CommandTable[] = {
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{"help", CmdHelp, 1, "This help"},
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{"fskdemod", CmdAWIDDemodFSK, 0, "['1'] Realtime AWID FSK demodulator (option '1' for one tag only)"},
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{"sim", CmdAWIDSim, 0, "<Facility-Code> <Card Number> -- AWID tag simulator"},
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{"clone", CmdAWIDClone, 0, "<Facility-Code> <Card Number> -- Clone AWID to T55x7 (tag must be in range of antenna)"},
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{"clone", CmdAWIDClone, 0, "<Facility-Code> <Card Number> <Q5> -- Clone AWID to T55x7 (tag must be in range of antenna)"},
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{NULL, NULL, 0, NULL}
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};
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int CmdLFAWID(const char *Cmd)
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{
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int CmdLFAWID(const char *Cmd) {
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CmdsParse(CommandTable, Cmd);
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return 0;
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}
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int CmdHelp(const char *Cmd)
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{
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int CmdHelp(const char *Cmd) {
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CmdsHelp(CommandTable);
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return 0;
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}
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