proxmark3/client/cmdlfio.c

253 lines
7.6 KiB
C
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#include "cmdlfio.h"
static int CmdHelp(const char *Cmd);
int usage_lf_io_fskdemod(void) {
PrintAndLog("Enables IOProx compatible reader mode printing details of scanned 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 card.");
PrintAndLog("");
PrintAndLog("Usage: lf io fskdemod [h] [1]");
PrintAndLog("Options :");
PrintAndLog(" h : This help");
PrintAndLog(" 1 : (optional) stop after reading a single card");
PrintAndLog("");
PrintAndLog("Samples");
PrintAndLog(" lf io fskdemod");
PrintAndLog(" lf io fskdemod 1");
return 0;
}
int usage_lf_io_sim(void) {
PrintAndLog("Enables simulation of IOProx card with specified facility-code and card number.");
PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
PrintAndLog("");
PrintAndLog("Usage: lf io sim [h] <version> <facility-code> <card-number>");
PrintAndLog("Options :");
PrintAndLog(" h : This help");
PrintAndLog(" <version> : 8bit version");
PrintAndLog(" <facility-code> : 8bit value facility code");
PrintAndLog(" <card number> : 16bit value card number");
PrintAndLog("");
PrintAndLog("Samples");
PrintAndLog(" lf io sim 26 101 1337");
return 0;
}
int usage_lf_io_clone(void) {
PrintAndLog("Enables cloning of IOProx 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("");
PrintAndLog("Usage: lf io clone [h] <version> <facility-code> <card-number> [Q5]");
PrintAndLog("Options :");
PrintAndLog(" h : This help");
PrintAndLog(" <version> : 8bit version");
PrintAndLog(" <facility-code> : 8bit value facility code");
PrintAndLog(" <card number> : 16bit value card number");
PrintAndLog(" Q5 : optional - clone to Q5 (T5555) instead of T55x7 chip");
PrintAndLog("");
PrintAndLog("Samples");
PrintAndLog(" lf io clone 26 101 1337");
return 0;
}
int CmdIODemodFSK(const char *Cmd) {
if (Cmd[0] == 'h' || Cmd[0] == 'H') return usage_lf_io_fskdemod();
int findone = (Cmd[0]=='1') ? 1 : 0;
UsbCommand c = {CMD_IO_DEMOD_FSK};
c.arg[0] = findone;
clearCommandBuffer();
SendCommand(&c);
return 0;
}
/*
int CmdIOProxDemod(const char *Cmd){
if (GraphTraceLen < 4800) {
PrintAndLog("too short; need at least 4800 samples");
return 0;
}
GraphTraceLen = 4800;
for (int i = 0; i < GraphTraceLen; ++i) {
GraphBuffer[i] = (GraphBuffer[i] < 0) ? 0 : 1;
}
RepaintGraphWindow();
return 0;
}
*/
//Index map
//0 10 20 30 40 50 60
//| | | | | | |
//01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23
//-----------------------------------------------------------------------------
//00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11
//XSF(version)facility:codeone+codetwo (raw)
int getIOProxBits(uint8_t version, uint8_t fc, uint16_t cn, uint8_t *bits) {
#define SEPARATOR 1
uint8_t pos=0;
// the return bits, preamble 0000 0000 0
uint8_t pre[64];
memset(pre, 0, sizeof(pre));
// skip 9 zeros as preamble
pos = 9;
// another fixed byte 11110000 = 0xF0
num_to_bytebits(0xF0, 8, pre+pos);
pos += 8;
pre[pos] = SEPARATOR;
pos++;
// add facilitycode
num_to_bytebits(fc, 8, pre+pos);
pos += 8;
pre[pos] = SEPARATOR;
pos++;
// add version
num_to_bytebits(version, 8, pre+pos);
pos += 8;
pre[pos] = SEPARATOR;
pos++;
// cardnumber high byte
num_to_bytebits( ((cn & 0xFF00)>>8), 8, pre+pos);
pos += 8;
pre[pos] = SEPARATOR;
pos++;
// cardnumber low byte
num_to_bytebits( (cn & 0xFF), 8, pre+pos);
pos += 8;
pre[pos] = SEPARATOR;
pos++;
// calculate and add CRC
uint16_t crc = 0;
for (uint8_t i=1; i<6; ++i)
crc += bytebits_to_byte(pre+9*i, 8);
crc &= 0xFF;
crc = 0xff - crc;
num_to_bytebits(crc, 8, pre+pos);
pos += 8;
// Final two ONES
pre[pos] = SEPARATOR;
pre[++pos] = SEPARATOR;
memcpy(bits, pre, sizeof(pre));
return 1;
}
int CmdIOSim(const char *Cmd) {
uint16_t cn = 0;
uint8_t version = 0, fc = 0;
uint8_t bits[64];
uint8_t *bs = bits;
size_t size = sizeof(bits);
memset(bs, 0x00, size);
uint64_t arg1 = ( 10 << 8 ) + 8; // fcHigh = 10, fcLow = 8
uint64_t arg2 = (64 << 8)| + 1; // clk RF/64 invert=1
char cmdp = param_getchar(Cmd, 0);
if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_io_sim();
version = param_get8(Cmd, 0);
fc = param_get8(Cmd, 1);
cn = param_get32ex(Cmd, 2, 0, 10);
if ( !version | !fc || !cn) return usage_lf_io_sim();
if ((cn & 0xFFFF) != cn) {
cn &= 0xFFFF;
PrintAndLog("Card Number Truncated to 16-bits (IOProx): %u", cn);
}
PrintAndLog("Emulating IOProx Version: %u FC: %u; CN: %u\n", version, fc, cn);
PrintAndLog("Press pm3-button to abort simulation or run another command");
if ( !getIOProxBits(version, fc, cn, bs)) {
PrintAndLog("Error with tag bitstream generation.");
return 1;
}
// IOProx uses: fcHigh: 10, fcLow: 8, clk: 64, invert: 1
// arg1 --- fcHigh<<8 + fcLow
// arg2 --- Inversion and clk setting
// 64 --- Bitstream length: 64-bits == 8 bytes
UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}};
memcpy(c.d.asBytes, bs, size);
clearCommandBuffer();
SendCommand(&c);
return 0;
}
int CmdIOClone(const char *Cmd) {
uint32_t blocks[3] = {T55x7_MODULATION_FSK2a | T55x7_BITRATE_RF_64 | 2<<T55x7_MAXBLOCK_SHIFT, 0, 0};
uint16_t cn = 0;
uint8_t version = 0, fc = 0;
uint8_t bits[64];
uint8_t *bs=bits;
memset(bs,0,sizeof(bits));
char cmdp = param_getchar(Cmd, 0);
if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_io_clone();
version = param_get8(Cmd, 0);
fc = param_get8(Cmd, 1);
cn = param_get32ex(Cmd, 2, 0, 10);
if ( !version | !fc || !cn) return usage_lf_io_clone();
if ((cn & 0xFFFF) != cn) {
cn &= 0xFFFF;
PrintAndLog("Card Number Truncated to 16-bits (IOProx): %u", cn);
}
// if (param_getchar(Cmd, 4) == 'Q' || param_getchar(Cmd, 4) == 'q')
//t5555 (Q5) BITRATE = (RF-2)/2 (iceman)
// blocks[0] = T5555_MODULATION_FSK2 | T5555_INVERT_OUTPUT | 50<<T5555_BITRATE_SHIFT | 3<<T5555_MAXBLOCK_SHIFT;
if ( !getIOProxBits(version, 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);
PrintAndLog("Preparing to clone IOProx to T55x7 with Version: %u FC: %u, CN: %u", version, fc, cn);
PrintAndLog("Blk | Data ");
PrintAndLog("----+------------");
PrintAndLog(" 00 | 0x%08x", blocks[0]);
PrintAndLog(" 01 | 0x%08x", blocks[1]);
PrintAndLog(" 02 | 0x%08x", blocks[2]);
//UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};
UsbCommand c = {CMD_IO_CLONE_TAG, {blocks[1],blocks[2],0}};
clearCommandBuffer();
SendCommand(&c);
return 0;
}
static command_t CommandTable[] = {
{"help", CmdHelp, 1, "This help"},
//{"demod", CmdIOProxDemod, 1, "Demodulate Stream"},
{"fskdemod",CmdIODemodFSK, 0, "['1'] Realtime IO FSK demodulator (option '1' for one tag only)"},
{"sim", CmdIOSim, 0, "<version> <facility-code> <card number> -- IOProx tag simulator"},
{"clone", CmdIOClone, 0, "<version> <facility-code> <card number> <Q5> -- Clone IOProx to T55x7"},
{NULL, NULL, 0, NULL}
};
int CmdLFIO(const char *Cmd){
clearCommandBuffer();
CmdsParse(CommandTable, Cmd);
return 0;
}
int CmdHelp(const char *Cmd) {
CmdsHelp(CommandTable);
return 0;
}