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proxmark3/client/cmdlfhid.c
iceman1001 e7406de219 redundant.
2019-04-05 18:53:17 +02:00

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//-----------------------------------------------------------------------------
// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
// 2016,2017, marshmellow, iceman
// This code is licensed to you under the terms of the GNU GPL, version 2 or,
// at your option, any later version. See the LICENSE.txt file for the text of
// the license.
//-----------------------------------------------------------------------------
// Low frequency HID commands
//-----------------------------------------------------------------------------
#include "cmdlfhid.h"
#ifndef BITS
# define BITS 96
#endif
static int CmdHelp(const char *Cmd);
int usage_lf_hid_read(void) {
PrintAndLogEx(NORMAL, "Enables HID compatible reader mode printing details.");
PrintAndLogEx(NORMAL, "By default, values are printed and logged until the button is pressed or another USB command is issued.");
PrintAndLogEx(NORMAL, "If the [1] option is provided, reader mode is exited after reading a single HID card.");
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "Usage: lf hid read [h] [1]");
PrintAndLogEx(NORMAL, "Options:");
PrintAndLogEx(NORMAL, " h : This help");
PrintAndLogEx(NORMAL, " 1 : (optional) stop after reading a single card");
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "Examples:");
PrintAndLogEx(NORMAL, " lf hid read");
PrintAndLogEx(NORMAL, " lf hid read 1");
return 0;
}
int usage_lf_hid_wiegand(void) {
PrintAndLogEx(NORMAL, "This command converts facility code/card number to Wiegand code");
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "Usage: lf hid wiegand [h] [OEM] [FC] [CN]");
PrintAndLogEx(NORMAL, "Options:");
PrintAndLogEx(NORMAL, " h - This help");
PrintAndLogEx(NORMAL, " OEM - OEM number / site code");
PrintAndLogEx(NORMAL, " FC - facility code");
PrintAndLogEx(NORMAL, " CN - card number");
PrintAndLogEx(NORMAL, "Examples:");
PrintAndLogEx(NORMAL, " lf hid wiegand 0 101 2001");
return 0;
}
int usage_lf_hid_sim(void) {
PrintAndLogEx(NORMAL, "Enables simulation of HID card with card number.");
PrintAndLogEx(NORMAL, "Simulation runs until the button is pressed or another USB command is issued.");
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "Usage: lf hid sim [h] [ID]");
PrintAndLogEx(NORMAL, "Options:");
PrintAndLogEx(NORMAL, " h - This help");
PrintAndLogEx(NORMAL, " ID - HID id");
PrintAndLogEx(NORMAL, "Examples:");
PrintAndLogEx(NORMAL, " lf hid sim 2006ec0c86");
return 0;
}
int usage_lf_hid_clone(void) {
PrintAndLogEx(NORMAL, "Clone HID to T55x7. Tag must be on antenna. ");
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "Usage: lf hid clone [h] [ID] <L>");
PrintAndLogEx(NORMAL, "Options:");
PrintAndLogEx(NORMAL, " h - This help");
PrintAndLogEx(NORMAL, " ID - HID id");
PrintAndLogEx(NORMAL, " L - 84bit ID");
PrintAndLogEx(NORMAL, "Examples:");
PrintAndLogEx(NORMAL, " lf hid clone 2006ec0c86");
PrintAndLogEx(NORMAL, " lf hid clone 2006ec0c86 L");
return 0;
}
int usage_lf_hid_brute(void) {
PrintAndLogEx(NORMAL, "Enables bruteforce of HID readers with specified facility code.");
PrintAndLogEx(NORMAL, "This is a attack against reader. if cardnumber is given, it starts with it and goes up / down one step");
PrintAndLogEx(NORMAL, "if cardnumber is not given, it starts with 1 and goes up to 65535");
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "Usage: lf hid brute [h] [v] a <format> f <facility-code> c <cardnumber> d <delay>");
PrintAndLogEx(NORMAL, "Options:");
PrintAndLogEx(NORMAL, " h : This help");
PrintAndLogEx(NORMAL, " a <format> : 26|33|34|35|37|40|44|84");
PrintAndLogEx(NORMAL, " f <facility-code> : 8-bit value HID facility code");
PrintAndLogEx(NORMAL, " c <cardnumber> : (optional) cardnumber to start with, max 65535");
PrintAndLogEx(NORMAL, " d <delay> : delay betweens attempts in ms. Default 1000ms");
PrintAndLogEx(NORMAL, " v : verbose logging, show all tries");
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "Examples:");
PrintAndLogEx(NORMAL, " lf hid brute a 26 f 224");
PrintAndLogEx(NORMAL, " lf hid brute a 26 f 21 d 2000");
PrintAndLogEx(NORMAL, " lf hid brute v a 26 f 21 c 200 d 2000");
return 0;
}
// sending three times. Didn't seem to break the previous sim?
static bool sendPing(void) {
UsbCommand ping = {CMD_PING, {1, 2, 3}};
SendCommand(&ping);
SendCommand(&ping);
SendCommand(&ping);
clearCommandBuffer();
UsbCommand resp;
if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000))
return false;
return true;
}
static bool sendTry(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint32_t delay, uint8_t *bits, bool verbose) {
// this should be optional.
if (verbose)
PrintAndLogEx(INFO, "Trying FC: %u; CN: %u", fc, cn);
calcWiegand(fmtlen, fc, cn, bits);
uint64_t arg1 = bytebits_to_byte(bits, 32);
uint64_t arg2 = bytebits_to_byte(bits + 32, 32);
UsbCommand c = {CMD_HID_SIM_TAG, {arg1, arg2, 0}};
clearCommandBuffer();
SendCommand(&c);
msleep(delay);
sendPing();
return true;
}
//by marshmellow (based on existing demod + holiman's refactor)
//HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded)
//print full HID Prox ID and some bit format details if found
int CmdHIDDemod(const char *Cmd) {
//raw fsk demod no manchester decoding no start bit finding just get binary from wave
uint32_t hi2 = 0, hi = 0, lo = 0;
uint8_t bits[MAX_GRAPH_TRACE_LEN] = {0};
size_t size = getFromGraphBuf(bits);
if (size == 0) {
PrintAndLogEx(DEBUG, "DEBUG: Error - HID not enough samples");
return 0;
}
//get binary from fsk wave
int waveIdx = 0;
int idx = HIDdemodFSK(bits, &size, &hi2, &hi, &lo, &waveIdx);
if (idx < 0) {
if (idx == -1)
PrintAndLogEx(DEBUG, "DEBUG: Error - HID not enough samples");
else if (idx == -2)
PrintAndLogEx(DEBUG, "DEBUG: Error - HID just noise detected");
else if (idx == -3)
PrintAndLogEx(DEBUG, "DEBUG: Error - HID problem during FSK demod");
else if (idx == -4)
PrintAndLogEx(DEBUG, "DEBUG: Error - HID preamble not found");
else if (idx == -5)
PrintAndLogEx(DEBUG, "DEBUG: Error - HID error in Manchester data, size %d", size);
else
PrintAndLogEx(DEBUG, "DEBUG: Error - HID error demoding fsk %d", idx);
return 0;
}
setDemodBuf(bits, size, idx);
setClockGrid(50, waveIdx + (idx * 50));
if (hi2 == 0 && hi == 0 && lo == 0) {
PrintAndLogEx(DEBUG, "DEBUG: Error - HID no values found");
return 0;
}
if (hi2 != 0) { //extra large HID tags
PrintAndLogEx(SUCCESS, "HID Prox TAG ID: %x%08x%08x (%u)", hi2, hi, lo, (lo >> 1) & 0xFFFF);
} else { //standard HID tags <38 bits
uint8_t fmtLen = 0;
uint32_t cc = 0;
uint32_t fc = 0;
uint32_t cardnum = 0;
if (((hi >> 5) & 1) == 1) {//if bit 38 is set then < 37 bit format is used
uint32_t lo2 = 0;
lo2 = (((hi & 31) << 12) | (lo >> 20)); //get bits 21-37 to check for format len bit
uint8_t idx3 = 1;
while (lo2 > 1) { //find last bit set to 1 (format len bit)
lo2 >>= 1;
idx3++;
}
fmtLen = idx3 + 19;
fc = 0;
cardnum = 0;
if (fmtLen == 26) {
cardnum = (lo >> 1) & 0xFFFF;
fc = (lo >> 17) & 0xFF;
}
if (fmtLen == 32 && (lo & 0x40000000)) { //if 32 bit and Kastle bit set
cardnum = (lo >> 1) & 0xFFFF;
fc = (lo >> 17) & 0xFF;
cc = (lo >> 25) & 0x1F;
}
if (fmtLen == 34) {
cardnum = (lo >> 1) & 0xFFFF;
fc = ((hi & 1) << 15) | (lo >> 17);
}
if (fmtLen == 35) {
cardnum = (lo >> 1) & 0xFFFFF;
fc = ((hi & 1) << 11) | (lo >> 21);
}
} else { //if bit 38 is not set then 37 bit format is used
fmtLen = 37;
fc = 0;
cardnum = 0;
if (fmtLen == 37) {
cardnum = (lo >> 1) & 0x7FFFF;
fc = ((hi & 0xF) << 12) | (lo >> 20);
}
}
if (fmtLen == 32 && (lo & 0x40000000)) { //if 32 bit and Kastle bit set
PrintAndLogEx(SUCCESS, "HID Prox TAG (Kastle format) ID: %08x (%u) - Format Len: 32bit - CC: %u - FC: %u - Card: %u", lo, (lo >> 1) & 0xFFFF, cc, fc, cardnum);
} else {
PrintAndLogEx(SUCCESS, "HID Prox TAG ID: %x%08x (%u) - Format Len: %ubit - FC: %u - Card: %u", hi, lo, (lo >> 1) & 0xFFFF, fmtLen, fc, cardnum);
}
}
PrintAndLogEx(DEBUG, "DEBUG: HID idx: %d, Len: %d, Printing Demod Buffer:", idx, size);
if (g_debugMode)
printDemodBuff();
return 1;
}
// this read is the "normal" read, which download lf signal and tries to demod here.
int CmdHIDRead(const char *Cmd) {
lf_read(true, 12000);
return CmdHIDDemod(Cmd);
}
// this read loops on device side.
// uses the demod in lfops.c
int CmdHIDRead_device(const char *Cmd) {
if (Cmd[0] == 'h' || Cmd[0] == 'H') return usage_lf_hid_read();
uint8_t findone = (Cmd[0] == '1') ? 1 : 0;
UsbCommand c = {CMD_HID_DEMOD_FSK, {findone, 0, 0}};
clearCommandBuffer();
SendCommand(&c);
return 0;
}
int CmdHIDSim(const char *Cmd) {
uint32_t hi = 0, lo = 0;
uint32_t n = 0, i = 0;
uint8_t ctmp = tolower(param_getchar(Cmd, 0));
if (strlen(Cmd) == 0 || ctmp == 'h') return usage_lf_hid_sim();
while (sscanf(&Cmd[i++], "%1x", &n) == 1) {
hi = (hi << 4) | (lo >> 28);
lo = (lo << 4) | (n & 0xf);
}
PrintAndLogEx(SUCCESS, "Simulating HID tag with ID %x%08x", hi, lo);
PrintAndLogEx(SUCCESS, "Press pm3-button to abort simulation");
UsbCommand c = {CMD_HID_SIM_TAG, {hi, lo, 0}};
clearCommandBuffer();
SendCommand(&c);
return 0;
}
int CmdHIDClone(const char *Cmd) {
uint32_t hi2 = 0, hi = 0, lo = 0;
uint32_t n = 0, i = 0;
UsbCommand c = {CMD_HID_CLONE_TAG};
uint8_t ctmp = param_getchar(Cmd, 0);
if (strlen(Cmd) == 0 || ctmp == 'H' || ctmp == 'h') return usage_lf_hid_clone();
if (strchr(Cmd, 'l') != 0) {
while (sscanf(&Cmd[i++], "%1x", &n) == 1) {
hi2 = (hi2 << 4) | (hi >> 28);
hi = (hi << 4) | (lo >> 28);
lo = (lo << 4) | (n & 0xf);
}
PrintAndLogEx(INFO, "Preparing to clone HID tag with long ID %x%08x%08x", hi2, hi, lo);
c.d.asBytes[0] = 1;
} else {
while (sscanf(&Cmd[i++], "%1x", &n) == 1) {
hi = (hi << 4) | (lo >> 28);
lo = (lo << 4) | (n & 0xf);
}
PrintAndLogEx(INFO, "Preparing to clone HID tag with ID %x%08x", hi, lo);
hi2 = 0;
c.d.asBytes[0] = 0;
}
c.arg[0] = hi2;
c.arg[1] = hi;
c.arg[2] = lo;
clearCommandBuffer();
SendCommand(&c);
return 0;
}
/*
// struct to handle wiegand
typedef struct {
uint8_t FormatLen;
uint8_t SiteCode;
uint8_t FacilityCode;
uint8_t CardNumber;
uint8_t *Wiegand;
size_t Wiegand_n;
} wiegand_t;
*/
static void addHIDMarker(uint8_t fmtlen, uint8_t *out) {
// temp array
uint8_t arr[BITS];
memset(arr, 0, BITS);
// copy inpu
uint8_t pos = sizeof(arr) - fmtlen;
memcpy(arr + pos, out, fmtlen);
switch (fmtlen) {
case 26: {
// start sentinel, BITS-bit 27 = 1
arr[BITS - 27] = 1;
// fmt smaller than 37 used, bit37 = 1
arr[BITS - 38] = 1;
memcpy(out, arr, BITS);
break;
}
case 34:
// start sentinel, BITS-bit 27 = 1
arr[BITS - 35] = 1;
// fmt smaller than 37 used, bit37 = 1
arr[BITS - 38] = 1;
memcpy(out, arr, BITS);
break;
default:
break;
}
}
// static void getParity34(uint32_t *hi, uint32_t *lo){
// uint32_t result = 0;
// int i;
// // even parity
// for (i = 7;i >= 0;i--)
// result ^= (*hi >> i) & i;
// for (i = 31;i >= 24;i--)
// result ^= (*lo >> i) & 1;
// *hi |= result << 2;
// // odd parity bit
// result = 0;
// for (i = 23;i >= 1;i--)
// result ^= (*lo >> i) & 1;
// *lo |= !result;
// }
// static void getParity37H(uint32_t *hi, uint32_t *lo){
// uint32_t result = 0;
// int i;
// // even parity
// for (i = 4;i >= 0;i--)
// result ^= (*hi >> i) & 1;
// for (i = 31;i >= 20;i--)
// result ^= (*lo >> i) & 1;
// *hi |= result << 4;
// // odd parity
// result = 0;
// for (i = 19;i >= 1;i--)
// result ^= (*lo >> i) & 1;
// *lo |= result;
// }
//static void calc26(uint16_t fc, uint32_t cardno, uint8_t *out){
static void calc26(uint16_t fc, uint32_t cardno, uint8_t *out) {
uint8_t wiegand[24];
num_to_bytebits(fc, 8, wiegand);
num_to_bytebits(cardno, 16, wiegand + 8);
wiegand_add_parity(out, wiegand, sizeof(wiegand));
}
// static void calc33(uint16_t fc, uint32_t cardno, uint8_t *out){
// }
static void calc34(uint16_t fc, uint32_t cardno, uint8_t *out) {
uint8_t wiegand[32];
num_to_bytebits(fc, 16, wiegand);
num_to_bytebits(cardno, 16, wiegand + 16);
wiegand_add_parity(out, wiegand, sizeof(wiegand));
}
// static void calc35(uint16_t fc, uint32_t cardno, uint8_t *out){
// *lo = ((cardno & 0xFFFFF) << 1) | fc << 21;
// *hi = (1 << 5) | ((fc >> 11) & 1);
// }
static void calc37S(uint16_t fc, uint32_t cardno, uint8_t *out) {
// FC 2 - 17 - 16 bit
// cardno 18 - 36 - 19 bit
// Even P1 1 - 19
// Odd P37 19 - 36
uint8_t wiegand[35];
num_to_bytebits(fc, 16, wiegand);
num_to_bytebits(cardno, 19, wiegand + 16);
wiegand_add_parity(out, wiegand, sizeof(wiegand));
}
static void calc37H(uint64_t cardno, uint8_t *out) {
// SC NONE
// cardno 1-35 34 bits
// Even Parity 0th bit 1-18
// Odd Parity 36th bit 19-35
uint8_t wiegand[37];
num_to_bytebits((uint32_t)(cardno >> 32), 2, wiegand);
num_to_bytebits((uint32_t)(cardno >> 0), 32, wiegand + 2);
wiegand_add_parity(out, wiegand, sizeof(wiegand));
PrintAndLogEx(NORMAL, "%x %x\n", (uint32_t)(cardno >> 32), (uint32_t)cardno);
}
// static void calc40(uint64_t cardno, uint8_t *out){
// cardno = (cardno & 0xFFFFFFFFFF);
// *lo = ((cardno & 0xFFFFFFFF) << 1 );
// *hi = (cardno >> 31);
// }
void calcWiegand(uint8_t fmtlen, uint16_t fc, uint64_t cardno, uint8_t *bits) {
uint32_t cn32 = (cardno & 0xFFFFFFFF);
switch (fmtlen) {
case 26:
calc26(fc, cn32, bits);
break;
// case 33 : calc33(fc, cn32, bits); break;
case 34:
calc34(fc, cn32, bits);
break;
// case 35 : calc35(fc, cn32, bits); break;
case 37:
calc37S(fc, cn32, bits);
break;
case 38:
calc37H(cardno, bits);
break;
// case 40 : calc40(cardno, bits); break;
// case 44 : { break; }
// case 84 : { break; }
default:
break;
}
}
int CmdHIDWiegand(const char *Cmd) {
uint32_t oem = 0, fc = 0;
uint64_t cardnum = 0;
uint64_t blocks = 0, wiegand = 0;
uint8_t bits[BITS];
uint8_t *bs = bits;
memset(bs, 0, sizeof(bits));
uint8_t ctmp = tolower(param_getchar(Cmd, 0));
if (strlen(Cmd) < 3 || ctmp == 'h') return usage_lf_hid_wiegand();
oem = param_get8(Cmd, 0);
fc = param_get32ex(Cmd, 1, 0, 10);
cardnum = param_get64ex(Cmd, 2, 0, 10);
uint8_t fmtlen[] = {26, 33, 34, 35, 37, 38, 40};
PrintAndLogEx(NORMAL, "HID | OEM | FC | CN | Wiegand | HID Formatted");
PrintAndLogEx(NORMAL, "----+-----+------+---------+-----------+--------------------");
for (uint8_t i = 0; i < sizeof(fmtlen); i++) {
memset(bits, 0x00, sizeof(bits));
calcWiegand(fmtlen[i], fc, cardnum, bs);
PrintAndLogEx(NORMAL, "ice:: %s \n", sprint_bin(bs, fmtlen[i]));
wiegand = (uint64_t)bytebits_to_byte(bs, 32) << 32 | bytebits_to_byte(bs + 32, 32);
addHIDMarker(fmtlen[i], bs);
PrintAndLogEx(NORMAL, "ice:: %s\n", sprint_bin(bs, BITS));
blocks = (uint64_t)bytebits_to_byte(bs + 32, 32) << 32 | bytebits_to_byte(bs + 64, 32);
uint8_t shifts = 64 - fmtlen[i];
wiegand >>= shifts;
PrintAndLogEx(NORMAL, " %u | %03u | %03u | %" PRIu64 " | %" PRIX64 " | %" PRIX64,
fmtlen[i],
oem,
fc,
cardnum,
wiegand,
blocks
);
}
PrintAndLogEx(NORMAL, "----+-----+-----+-------+-----------+--------------------");
return 0;
}
int CmdHIDBrute(const char *Cmd) {
bool errors = false, verbose = false;
uint32_t fc = 0, cn = 0, delay = 1000;
uint8_t fmtlen = 0;
uint8_t bits[96];
memset(bits, 0, sizeof(bits));
uint8_t cmdp = 0;
while (param_getchar(Cmd, cmdp) != 0x00 && !errors) {
switch (tolower(param_getchar(Cmd, cmdp))) {
case 'h':
return usage_lf_hid_brute();
case 'f':
fc = param_get32ex(Cmd, cmdp + 1, 0, 10);
if (!fc)
errors = true;
cmdp += 2;
break;
case 'd':
// delay between attemps, defaults to 1000ms.
delay = param_get32ex(Cmd, cmdp + 1, 1000, 10);
cmdp += 2;
break;
case 'c':
cn = param_get32ex(Cmd, cmdp + 1, 0, 10);
// truncate cardnumber.
cn &= 0xFFFF;
cmdp += 2;
break;
case 'a':
fmtlen = param_get8(Cmd, cmdp + 1);
cmdp += 2;
bool is_ftm_ok = false;
uint8_t ftms[] = {26, 33, 34, 35, 37};
for (uint8_t i = 0; i < sizeof(ftms); i++) {
if (ftms[i] == fmtlen) {
is_ftm_ok = true;
}
}
// negated
errors = !is_ftm_ok;
break;
case 'v':
verbose = true;
cmdp++;
break;
default:
PrintAndLogEx(WARNING, "Unknown parameter '%c'", param_getchar(Cmd, cmdp));
errors = true;
break;
}
}
if (fc == 0) errors = true;
if (errors) return usage_lf_hid_brute();
PrintAndLogEx(INFO, "Brute-forcing HID reader");
PrintAndLogEx(INFO, "Press pm3-button to abort simulation or run another command");
uint16_t up = cn;
uint16_t down = cn;
// main loop
for (;;) {
if (IsOffline()) {
PrintAndLogEx(WARNING, "Device offline\n");
return 2;
}
if (ukbhit()) {
int gc = getchar();
(void)gc;
PrintAndLogEx(INFO, "aborted via keyboard!");
return sendPing();
}
// Do one up
if (up < 0xFFFF)
if (!sendTry(fmtlen, fc, up++, delay, bits, verbose)) return 1;
// Do one down (if cardnumber is given)
if (cn > 1)
if (down > 1)
if (!sendTry(fmtlen, fc, --down, delay, bits, verbose)) return 1;
}
return 0;
}
static command_t CommandTable[] = {
{"help", CmdHelp, 1, "this help"},
{"demod", CmdHIDDemod, 0, "demodulate HID Prox tag from the GraphBuffer"},
{"read", CmdHIDRead, 0, "attempt to read and extract tag data"},
{"clone", CmdHIDClone, 0, "clone HID to T55x7"},
{"sim", CmdHIDSim, 0, "simulate HID tag"},
{"wiegand", CmdHIDWiegand, 1, "convert facility code/card number to Wiegand code"},
{"brute", CmdHIDBrute, 0, "bruteforce card number against reader"},
{NULL, NULL, 0, NULL}
};
int CmdLFHID(const char *Cmd) {
clearCommandBuffer();
CmdsParse(CommandTable, Cmd);
return 0;
}
int CmdHelp(const char *Cmd) {
CmdsHelp(CommandTable);
return 0;
}
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