mirror of
https://github.com/RfidResearchGroup/proxmark3.git
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354 lines
12 KiB
C
354 lines
12 KiB
C
//-----------------------------------------------------------------------------
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//
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// This code is licensed to you under the terms of the GNU GPL, version 2 or,
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// at your option, any later version. See the LICENSE.txt file for the text of
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// the license.
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//-----------------------------------------------------------------------------
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// Low frequency ioProx commands
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// FSK2a, rf/64, 64 bits (complete)
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//-----------------------------------------------------------------------------
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#include "cmdlfio.h"
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static int CmdHelp(const char *Cmd);
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int usage_lf_io_read(void) {
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PrintAndLogEx(NORMAL, "Enables IOProx compatible reader mode printing details of scanned tags.");
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PrintAndLogEx(NORMAL, "By default, values are printed and logged until the button is pressed or another USB command is issued.");
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PrintAndLogEx(NORMAL, "If the [1] option is provided, reader mode is exited after reading a single card.");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, "Usage: lf io read [h] [1]");
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PrintAndLogEx(NORMAL, "Options:");
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PrintAndLogEx(NORMAL, " h : This help");
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PrintAndLogEx(NORMAL, " 1 : (optional) stop after reading a single card");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, "Examples:");
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PrintAndLogEx(NORMAL, " lf io read");
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PrintAndLogEx(NORMAL, " lf io read 1");
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return 0;
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}
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int usage_lf_io_sim(void) {
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PrintAndLogEx(NORMAL, "Enables simulation of IOProx card with specified facility-code and card number.");
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PrintAndLogEx(NORMAL, "Simulation runs until the button is pressed or another USB command is issued.");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, "Usage: lf io sim [h] <version> <facility-code> <card-number>");
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PrintAndLogEx(NORMAL, "Options:");
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PrintAndLogEx(NORMAL, " h : This help");
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PrintAndLogEx(NORMAL, " <version> : 8bit version");
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PrintAndLogEx(NORMAL, " <facility-code> : 8bit value facility code");
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PrintAndLogEx(NORMAL, " <card number> : 16bit value card number");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, "Examples:");
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PrintAndLogEx(NORMAL, " lf io sim 26 101 1337");
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return 0;
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}
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int usage_lf_io_clone(void) {
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PrintAndLogEx(NORMAL, "Enables cloning of IOProx card with specified facility-code and card number onto T55x7.");
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PrintAndLogEx(NORMAL, "The T55x7 must be on the antenna when issuing this command. T55x7 blocks are calculated and printed in the process.");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, "Usage: lf io clone [h] <version> <facility-code> <card-number> [Q5]");
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PrintAndLogEx(NORMAL, "Options:");
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PrintAndLogEx(NORMAL, " h : This help");
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PrintAndLogEx(NORMAL, " <version> : 8bit version");
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PrintAndLogEx(NORMAL, " <facility-code> : 8bit value facility code");
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PrintAndLogEx(NORMAL, " <card number> : 16bit value card number");
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PrintAndLogEx(NORMAL, " Q5 : optional - clone to Q5 (T5555) instead of T55x7 chip");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, "Examples:");
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PrintAndLogEx(NORMAL, " lf io clone 26 101 1337");
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return 0;
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}
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// this read is the "normal" read, which download lf signal and tries to demod here.
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int CmdIOProxRead(const char *Cmd) {
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lf_read(true, 12000);
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return CmdIOProxDemod(Cmd);
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}
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// this read loops on device side.
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// uses the demod in lfops.c
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int CmdIOProxRead_device(const char *Cmd) {
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if (Cmd[0] == 'h' || Cmd[0] == 'H') return usage_lf_io_read();
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int findone = (Cmd[0]=='1') ? 1 : 0;
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UsbCommand c = {CMD_IO_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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//by marshmellow
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//IO-Prox demod - FSK RF/64 with preamble of 000000001
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//print ioprox ID and some format details
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int CmdIOProxDemod(const char *Cmd) {
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int retval = 0;
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int idx = 0;
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uint8_t bits[MAX_GRAPH_TRACE_LEN] = {0};
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size_t size = getFromGraphBuf(bits);
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if (size < 65) {
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if (g_debugMode) PrintAndLogEx(DEBUG, "DEBUG: Error - IO prox not enough samples in GraphBuffer");
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return 0;
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}
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//get binary from fsk wave
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int waveIdx = 0;
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idx = detectIOProx(bits, &size, &waveIdx);
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if (idx < 0){
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if (g_debugMode){
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if (idx == -1){
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PrintAndLogEx(DEBUG, "DEBUG: Error - IO prox not enough samples");
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} else if (idx == -2) {
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PrintAndLogEx(DEBUG, "DEBUG: Error - IO prox just noise detected");
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} else if (idx == -3) {
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PrintAndLogEx(DEBUG, "DEBUG: Error - IO prox error during fskdemod");
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} else if (idx == -4) {
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PrintAndLogEx(DEBUG, "DEBUG: Error - IO prox preamble not found");
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} else if (idx == -5) {
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PrintAndLogEx(DEBUG, "DEBUG: Error - IO size not correct, size %d", size);
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} else if (idx == -6) {
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PrintAndLogEx(DEBUG, "DEBUG: Error - IO prox separator bits not found");
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} else {
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PrintAndLogEx(DEBUG, "DEBUG: Error - IO prox error demoding fsk %d", idx);
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}
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}
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return 0;
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}
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setDemodBuf(bits, size, idx);
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setClockGrid(64, waveIdx + (idx*64));
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if (idx==0){
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if (g_debugMode){
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PrintAndLogEx(DEBUG, "DEBUG: Error - IO prox data not found - FSK Bits: %d", size);
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if (size > 92) PrintAndLogEx(NORMAL, "%s", sprint_bin_break(bits, 92, 16));
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}
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return retval;
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}
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//Index map
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//0 10 20 30 40 50 60
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//| | | | | | |
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//01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
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//-----------------------------------------------------------------------------
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//00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
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//
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//XSF(version)facility:codeone+codetwo (raw)
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if (g_debugMode) {
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PrintAndLogEx(NORMAL, "%d%d%d%d%d%d%d%d %d", bits[idx], bits[idx+1], bits[idx+2], bits[idx+3], bits[idx+4], bits[idx+5], bits[idx+6], bits[idx+7], bits[idx+8]);
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PrintAndLogEx(NORMAL, "%d%d%d%d%d%d%d%d %d", bits[idx+9], bits[idx+10], bits[idx+11],bits[idx+12],bits[idx+13],bits[idx+14],bits[idx+15],bits[idx+16],bits[idx+17]);
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PrintAndLogEx(NORMAL, "%d%d%d%d%d%d%d%d %d facility", bits[idx+18], bits[idx+19], bits[idx+20],bits[idx+21],bits[idx+22],bits[idx+23],bits[idx+24],bits[idx+25],bits[idx+26]);
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PrintAndLogEx(NORMAL, "%d%d%d%d%d%d%d%d %d version", bits[idx+27], bits[idx+28], bits[idx+29],bits[idx+30],bits[idx+31],bits[idx+32],bits[idx+33],bits[idx+34],bits[idx+35]);
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PrintAndLogEx(NORMAL, "%d%d%d%d%d%d%d%d %d code1", bits[idx+36], bits[idx+37], bits[idx+38],bits[idx+39],bits[idx+40],bits[idx+41],bits[idx+42],bits[idx+43],bits[idx+44]);
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PrintAndLogEx(NORMAL, "%d%d%d%d%d%d%d%d %d code2", bits[idx+45], bits[idx+46], bits[idx+47],bits[idx+48],bits[idx+49],bits[idx+50],bits[idx+51],bits[idx+52],bits[idx+53]);
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PrintAndLogEx(NORMAL, "%d%d%d%d%d%d%d%d %d%d checksum", bits[idx+54],bits[idx+55],bits[idx+56],bits[idx+57],bits[idx+58],bits[idx+59],bits[idx+60],bits[idx+61],bits[idx+62],bits[idx+63]);
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}
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uint32_t code = bytebits_to_byte(bits+idx,32);
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uint32_t code2 = bytebits_to_byte(bits+idx+32,32);
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uint8_t version = bytebits_to_byte(bits+idx+27,8); //14,4
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uint8_t facilitycode = bytebits_to_byte(bits+idx+18,8) ;
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uint16_t number = (bytebits_to_byte(bits+idx+36,8)<<8)|(bytebits_to_byte(bits+idx+45,8)); //36,9
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uint8_t crc = bytebits_to_byte(bits+idx+54,8);
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uint8_t calccrc = 0;
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for (uint8_t i = 1; i < 6; ++i){
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calccrc += bytebits_to_byte(bits + idx + 9 * i ,8);
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}
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calccrc &= 0xff;
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calccrc = 0xff - calccrc;
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char crcStr[30];
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memset(crcStr, 0x00, sizeof(crcStr) );
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if (crc == calccrc) {
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snprintf(crcStr, 3, "ok");
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retval = 1;
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} else {
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if (g_debugMode) PrintAndLogEx(DEBUG, "DEBUG: Error - IO prox crc failed");
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snprintf(crcStr, sizeof(crcStr), "failed 0x%02X != 0x%02X", crc, calccrc);
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retval = 0;
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}
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PrintAndLogEx(NORMAL, "IO Prox XSF(%02d)%02x:%05d (%08x%08x) [crc %s]", version, facilitycode, number, code, code2, crcStr);
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if (g_debugMode){
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PrintAndLogEx(DEBUG, "DEBUG: IO prox idx: %d, Len: %d, Printing demod buffer:", idx, size);
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printDemodBuff();
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}
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return retval;
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}
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//Index map
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//0 10 20 30 40 50 60
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//| | | | | | |
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//01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
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//-----------------------------------------------------------------------------
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//00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
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//XSF(version)facility:codeone+codetwo (raw)
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int getIOProxBits(uint8_t version, uint8_t fc, uint16_t cn, uint8_t *bits) {
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#define SEPARATOR 1
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uint8_t pos=0;
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// the return bits, preamble 0000 0000 0
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uint8_t pre[64];
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memset(pre, 0, sizeof(pre));
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// skip 9 zeros as preamble
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pos = 9;
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// another fixed byte 11110000 = 0xF0
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num_to_bytebits(0xF0, 8, pre+pos);
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pos += 8;
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pre[pos] = SEPARATOR;
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pos++;
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// add facilitycode
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num_to_bytebits(fc, 8, pre+pos);
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pos += 8;
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pre[pos] = SEPARATOR;
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pos++;
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// add version
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num_to_bytebits(version, 8, pre+pos);
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pos += 8;
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pre[pos] = SEPARATOR;
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pos++;
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// cardnumber high byte
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num_to_bytebits( ((cn & 0xFF00)>>8), 8, pre+pos);
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pos += 8;
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pre[pos] = SEPARATOR;
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pos++;
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// cardnumber low byte
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num_to_bytebits( (cn & 0xFF), 8, pre+pos);
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pos += 8;
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pre[pos] = SEPARATOR;
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pos++;
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// calculate and add CRC
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uint16_t crc = 0;
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for (uint8_t i=1; i<6; ++i)
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crc += bytebits_to_byte(pre+9*i, 8);
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crc &= 0xFF;
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crc = 0xff - crc;
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num_to_bytebits(crc, 8, pre+pos);
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pos += 8;
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// Final two ONES
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pre[pos] = SEPARATOR;
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pre[++pos] = SEPARATOR;
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memcpy(bits, pre, sizeof(pre));
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PrintAndLogEx(NORMAL, "IO raw bits:\n %s \n", sprint_bin(bits, 64));
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return 1;
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}
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int CmdIOProxSim(const char *Cmd) {
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uint16_t cn = 0;
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uint8_t version = 0, fc = 0;
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uint8_t bits[64];
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size_t size = sizeof(bits);
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memset(bits, 0x00, size);
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char cmdp = param_getchar(Cmd, 0);
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if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_io_sim();
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version = param_get8(Cmd, 0);
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fc = param_get8(Cmd, 1);
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cn = param_get32ex(Cmd, 2, 0, 10);
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if ( !version | !fc || !cn) return usage_lf_io_sim();
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if ((cn & 0xFFFF) != cn) {
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cn &= 0xFFFF;
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PrintAndLogEx(NORMAL, "Card Number Truncated to 16-bits (IOProx): %u", cn);
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}
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// clock 64, FSK2a fcHIGH 10 | fcLOW 8
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uint8_t clk = 64, invert = 1, high = 10, low = 8;
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uint16_t arg1, arg2;
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arg1 = high << 8 | low;
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arg2 = invert << 8 | clk;
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PrintAndLogEx(NORMAL, "Emulating IOProx Version: %u FC: %u; CN: %u\n", version, fc, cn);
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PrintAndLogEx(NORMAL, "Press pm3-button to abort simulation or run another command");
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if ( !getIOProxBits(version, fc, cn, bits)) {
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PrintAndLogEx(WARNING, "Error with tag bitstream generation.");
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return 1;
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}
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// IOProx uses: fcHigh: 10, fcLow: 8, clk: 64, invert: 1
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// arg1 --- fcHigh<<8 + fcLow
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// arg2 --- Invert and clk setting
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// size --- 64 bits == 8 bytes
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UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};
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memcpy(c.d.asBytes, bits, 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 CmdIOProxClone(const char *Cmd) {
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uint32_t blocks[3] = {T55x7_MODULATION_FSK2a | T55x7_BITRATE_RF_64 | 2 << T55x7_MAXBLOCK_SHIFT, 0, 0};
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uint16_t cn = 0;
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uint8_t version = 0, fc = 0;
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uint8_t bits[64];
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memset(bits,0,sizeof(bits));
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char cmdp = param_getchar(Cmd, 0);
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if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_io_clone();
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version = param_get8(Cmd, 0);
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fc = param_get8(Cmd, 1);
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cn = param_get32ex(Cmd, 2, 0, 10);
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if ( !version | !fc || !cn) return usage_lf_io_clone();
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if ((cn & 0xFFFF) != cn) {
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cn &= 0xFFFF;
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PrintAndLogEx(NORMAL, "Card Number Truncated to 16-bits (IOProx): %u", cn);
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}
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if ( !getIOProxBits(version, fc, cn, bits)) {
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PrintAndLogEx(WARNING, "Error with tag bitstream generation.");
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return 1;
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}
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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 | T5555_SET_BITRATE(64) | 2 << T5555_MAXBLOCK_SHIFT;
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blocks[1] = bytebits_to_byte(bits, 32);
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blocks[2] = bytebits_to_byte(bits + 32, 32);
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PrintAndLogEx(NORMAL, "Preparing to clone IOProx to T55x7 with Version: %u FC: %u, CN: %u", version, fc, cn);
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print_blocks(blocks, 3);
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//UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};
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UsbCommand c = {CMD_IO_CLONE_TAG, {blocks[1],blocks[2],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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static command_t CommandTable[] = {
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{"help", CmdHelp, 1, "this help"},
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{"demod", CmdIOProxDemod, 1, "demodulate an IOProx tag from the GraphBuffer"},
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{"read", CmdIOProxRead, 1, "attempt to read and extract tag data"},
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{"clone", CmdIOProxClone, 0, "clone IOProx to T55x7"},
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{"sim", CmdIOProxSim, 0, "simulate IOProx tag"},
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{NULL, NULL, 0, NULL}
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};
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int CmdLFIO(const char *Cmd){
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clearCommandBuffer();
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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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CmdsHelp(CommandTable);
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return 0;
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}
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