mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-09-22 00:06:13 +08:00
500 lines
13 KiB
C
500 lines
13 KiB
C
//-----------------------------------------------------------------------------
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// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
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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 HID commands
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//-----------------------------------------------------------------------------
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#include "cmdlfhid.h"
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static int CmdHelp(const char *Cmd);
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int usage_lf_hid_wiegand(void){
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PrintAndLog("This command converts facility code/card number to Wiegand code");
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PrintAndLog("Usage: lf hid wiegand [h] [OEM] [FC] [CN]");
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PrintAndLog("Options:");
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PrintAndLog(" h - This help");
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PrintAndLog(" OEM - OEM number / site code");
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PrintAndLog(" FC - facility code");
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PrintAndLog(" CN - card number");
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PrintAndLog("Examples:");
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PrintAndLog(" lf hid wiegand 0 101 2001");
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return 0;
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}
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int usage_lf_hid_sim(void){
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PrintAndLog("HID Tag simulator");
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PrintAndLog("");
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PrintAndLog("Usage: lf hid sim [h] [ID]");
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PrintAndLog("Options:");
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PrintAndLog(" h - This help");
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PrintAndLog(" ID - HID id");
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PrintAndLog("Examples:");
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PrintAndLog(" lf hid sim 224");
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return 0;
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}
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int usage_lf_hid_clone(void){
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PrintAndLog("Clone HID to T55x7. Tag must be on antenna. ");
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PrintAndLog("");
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PrintAndLog("Usage: lf hid clone [h] [ID] <L>");
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PrintAndLog("Options:");
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PrintAndLog(" h - This help");
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PrintAndLog(" ID - HID id");
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PrintAndLog(" L - 84bit ID");
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PrintAndLog("Examples:");
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PrintAndLog(" lf hid clone 224");
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PrintAndLog(" lf hid clone 224 L");
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return 0;
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}
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int usage_lf_hid_brute(void){
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PrintAndLog("Enables bruteforce of HID readers with specified facility code.");
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PrintAndLog("This is a attack against reader. if cardnumber is given, it starts with it and goes up / down one step");
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PrintAndLog("if cardnumber is not given, it starts with 1 and goes up to 65535");
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PrintAndLog("");
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PrintAndLog("Usage: lf hid brute [h] a <format> f <facility-code> c <cardnumber> d <delay>");
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PrintAndLog("Options :");
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PrintAndLog(" h : This help");
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PrintAndLog(" a <format> : 26|33|34|35|37|40|44|84");
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PrintAndLog(" f <facility-code> : 8-bit value HID facility code");
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PrintAndLog(" c <cardnumber> : (optional) cardnumber to start with, max 65535");
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PrintAndLog(" d <delay> : delay betweens attempts in ms. Default 1000ms");
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PrintAndLog("");
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PrintAndLog("Samples:");
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PrintAndLog(" lf hid brute a 26 f 224");
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PrintAndLog(" lf hid brute a 26 f 21 d 2000");
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PrintAndLog(" lf hid brute a 26 f 21 c 200 d 2000");
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return 0;
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}
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static int sendPing(void){
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UsbCommand ping = {CMD_PING, {1, 2, 3}};
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SendCommand(&ping);
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SendCommand(&ping);
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SendCommand(&ping);
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clearCommandBuffer();
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UsbCommand resp;
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if (WaitForResponseTimeout(CMD_ACK, &resp, 1000))
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return 0;
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return 1;
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}
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static bool sendTry(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint32_t delay, uint8_t *bs){
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PrintAndLog("Trying FC: %u; CN: %u", fc, cn);
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calcWiegand( fmtlen, fc, cn, bs);
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uint64_t arg1 = bytebits_to_byte(bs,32);
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uint64_t arg2 = bytebits_to_byte(bs+32,32);
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UsbCommand c = {CMD_HID_SIM_TAG, {arg1, arg2, 0}};
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clearCommandBuffer();
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SendCommand(&c);
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msleep(delay);
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sendPing();
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return TRUE;
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}
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int CmdHIDDemodFSK(const char *Cmd) {
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int findone = ( Cmd[0] == '1' ) ? 1 : 0;
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UsbCommand c = {CMD_HID_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 CmdHIDSim(const char *Cmd) {
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unsigned int hi = 0, lo = 0;
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int n = 0, i = 0;
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uint8_t ctmp = param_getchar(Cmd, 0);
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if ( strlen(Cmd) == 0 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_hid_sim();
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while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
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hi = (hi << 4) | (lo >> 28);
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lo = (lo << 4) | (n & 0xf);
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}
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PrintAndLog("Emulating tag with ID %x%16x", hi, lo);
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PrintAndLog("Press pm3-button to abort simulation");
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UsbCommand c = {CMD_HID_SIM_TAG, {hi, lo, 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 CmdHIDClone(const char *Cmd) {
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unsigned int hi2 = 0, hi = 0, lo = 0;
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int n = 0, i = 0;
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UsbCommand c;
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uint8_t ctmp = param_getchar(Cmd, 0);
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if ( strlen(Cmd) == 0 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_hid_clone();
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if (strchr(Cmd,'l') != 0) {
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while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
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hi2 = (hi2 << 4) | (hi >> 28);
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hi = (hi << 4) | (lo >> 28);
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lo = (lo << 4) | (n & 0xf);
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}
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PrintAndLog("Cloning tag with long ID %x%08x%08x", hi2, hi, lo);
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c.d.asBytes[0] = 1;
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} else {
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while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
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hi = (hi << 4) | (lo >> 28);
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lo = (lo << 4) | (n & 0xf);
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}
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PrintAndLog("Cloning tag with ID %x%08x", hi, lo);
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hi2 = 0;
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c.d.asBytes[0] = 0;
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}
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c.cmd = CMD_HID_CLONE_TAG;
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c.arg[0] = hi2;
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c.arg[1] = hi;
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c.arg[2] = lo;
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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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// struct to handle wiegand
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typedef struct {
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uint8_t FormatLen;
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uint8_t SiteCode;
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uint8_t FacilityCode;
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uint8_t CardNumber;
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uint8_t* Wiegand;
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size_t Wiegand_n;
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} wiegand_t;
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// static void addHIDMarker(uint8_t fmtlen, uint8_t *out) {
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// }
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//static void getParity26(uint32_t *hi, uint32_t *lo){
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// uint32_t result = 0;
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// int i;
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// // even parity
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// for (i = 24;i >= 13;i--)
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// result ^= (*lo >> i) & 1;
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// // even parity 26th bit
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// *lo |= result << 25;
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// // odd parity
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// result = 0;
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// for (i = 12;i >= 1;i--)
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// result ^= (*lo >> i) & 1;
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// *lo |= !result;
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//}
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// static void getParity33(uint32_t *hi, uint32_t *lo){
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// }
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// static void getParity34(uint32_t *hi, uint32_t *lo){
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// uint32_t result = 0;
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// int i;
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// // even parity
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// for (i = 7;i >= 0;i--)
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// result ^= (*hi >> i) & i;
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// for (i = 31;i >= 24;i--)
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// result ^= (*lo >> i) & 1;
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// *hi |= result << 2;
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// // odd parity bit
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// result = 0;
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// for (i = 23;i >= 1;i--)
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// result ^= (*lo >> i) & 1;
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// *lo |= !result;
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// }
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// static void getParity35(uint32_t *hi, uint32_t *lo){
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// }
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// static void getParity37S(uint32_t *hi,uint32_t *lo){
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// uint32_t result = 0;
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// int i;
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// // even parity
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// for (i = 4; i >= 0; i--)
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// result ^= (*hi >> i) & 1;
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// for (i = 31; i >= 20; i--)
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// result ^= (*lo >> i) & 1;
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// *hi |= result;
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// // odd parity
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// result = 0;
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// for (i = 19; i >= 1; i--)
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// result ^= (*lo >> i) & 1;
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// *lo |= result;
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// }
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// static void getParity37H(uint32_t *hi, uint32_t *lo){
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// uint32_t result = 0;
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// int i;
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// // even parity
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// for (i = 4;i >= 0;i--)
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// result ^= (*hi >> i) & 1;
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// for (i = 31;i >= 20;i--)
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// result ^= (*lo >> i) & 1;
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// *hi |= result << 4;
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// // odd parity
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// result = 0;
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// for (i = 19;i >= 1;i--)
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// result ^= (*lo >> i) & 1;
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// *lo |= result;
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// }
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//static void calc26(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
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void calc26(uint16_t fc, uint32_t cardno, uint8_t *out){
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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(cardno, 16, wiegand+8);
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wiegand_add_parity(out, wiegand, sizeof(wiegand) );
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// *out |= (1 << 26); // why this?
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// *out |= (1 << 37); // bit format for hid?
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}
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// static void calc33(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
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// }
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// static void calc34(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
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// // put card number first bit 1 .. 20 //
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// *lo = ((cardno & 0X000F7FFF) << 1) | ((fc & 0XFFFF) << 17);
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// // set bit format for less than 37 bit format
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// *hi = (1 << 5) | (fc >> 15);
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// }
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// static void calc35(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
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// *lo = ((cardno & 0xFFFFF) << 1) | fc << 21;
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// *hi = (1 << 5) | ((fc >> 11) & 1);
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// }
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// static void calc37S(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
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// // FC 2 - 17 - 16 bit
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// // cardno 18 - 36 - 19 bit
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// // Even P1 1 - 19
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// // Odd P37 19 - 36
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// fc = fc & 0xFFFF;
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// *lo = ((fc << 20) | (cardno & 0x7FFFF) << 1);
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// *hi = (fc >> 12);
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// }
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// static void calc37H(uint64_t cardno, uint32_t *hi, uint32_t *lo){
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// // SC NONE
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// // cardno 1-35 34 bits
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// // Even Parity 0th bit 1-18
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// // Odd Parity 36th bit 19-35
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// cardno = (cardno & 0x00000003FFFFFFFF);
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// *lo = (cardno << 1);
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// *hi = (cardno >> 31);
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// }
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// static void calc40(uint64_t cardno, uint32_t *hi, uint32_t *lo){
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// cardno = (cardno & 0xFFFFFFFFFF);
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// *lo = ((cardno & 0xFFFFFFFF) << 1 );
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// *hi = (cardno >> 31);
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// }
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void calcWiegand(uint8_t fmtlen, uint16_t fc, uint64_t cardno, uint8_t *bits){
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// uint32_t hi = 0, lo = 0;
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// uint32_t cn32 = (cardno & 0xFFFFFFFF);
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// switch ( fmtlen ) {
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// case 26 : {
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// calc26(fc, cn32, bits);
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// addHIDFormatMarker(fmtlen, bits);
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// break;
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// }
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// case 33 : {
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// // calc33(fc, cn32, hi, lo);
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// // getParity33(hi, lo);
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// break;
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// }
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// case 34 : {
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// calc34(fc, cn32, hi, lo);
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// getParity34(hi, lo);
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// break;
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// }
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// case 35 : {
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// calc35(fc, cn32, hi, lo);
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// getParity35(hi, lo);
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// break;
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// }
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// case 37 : {
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// calc37S(fc, cn32, hi, lo);
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// getParity37S(hi, lo);
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// break;
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// }
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// case 38 : {
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// calc37H(cn32, hi, lo);
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// getParity37H(hi, lo);
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// break;
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// }
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// case 40 : calc40(cardno, hi, lo); break;
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// case 44 : { break; }
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// case 84 : { break; }
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// }
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}
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int CmdHIDWiegand(const char *Cmd) {
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uint32_t oem = 0, fc = 0;
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uint64_t cardnum = 0;
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uint32_t blocks[2] = {0,0};
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uint32_t wiegand[2] = {0,0};
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uint8_t bits[96];
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uint8_t *bs = bits;
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memset(bs, 0, sizeof(bits));
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uint8_t ctmp = param_getchar(Cmd, 0);
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if ( strlen(Cmd) == 0 || strlen(Cmd) < 3 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_hid_wiegand();
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oem = param_get8(Cmd, 0);
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fc = param_get32ex(Cmd, 1, 0, 10);
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cardnum = param_get64ex(Cmd, 2, 0, 10);
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//
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uint8_t ftmlen[] = {26,33,34,35,37,38,40};
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PrintAndLog("HID | OEM | FC | CN | Wiegand | HID Formatted");
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PrintAndLog("----+-----+-----+-------+-----------+--------------------");
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for (uint8_t i = 0; i < sizeof(ftmlen); i++){
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calcWiegand( ftmlen[i], fc, cardnum, bs);
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blocks[0] = bytebits_to_byte(bs,32);
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blocks[1] = bytebits_to_byte(bs+32,32);
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PrintAndLog(" %d | %d | %d | %llu | %08X%08X | %08X%08X ",
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ftmlen,
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oem,
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fc,
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cardnum,
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wiegand[0],
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wiegand[1],
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blocks[0],
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blocks[1]
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);
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}
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PrintAndLog("----+-----+-----+-------+-----------+--------------------");
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return 0;
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}
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int CmdHIDBrute(const char *Cmd){
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bool errors = false;
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uint32_t fc = 0, cn = 0, delay = 1000;
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uint8_t fmtlen = 0;
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uint8_t bits[96];
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uint8_t *bs = bits;
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memset(bs, 0, sizeof(bits));
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uint8_t cmdp = 0;
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while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
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switch(param_getchar(Cmd, cmdp)) {
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case 'h':
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case 'H':
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return usage_lf_hid_brute();
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case 'f':
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case 'F':
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fc = param_get32ex(Cmd ,cmdp+1, 0, 10);
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if ( !fc )
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errors = true;
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cmdp += 2;
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break;
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case 'd':
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case 'D':
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// delay between attemps, defaults to 1000ms.
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delay = param_get32ex(Cmd, cmdp+1, 1000, 10);
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cmdp += 2;
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break;
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case 'c':
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case 'C':
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cn = param_get32ex(Cmd, cmdp+1, 0, 10);
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// truncate cardnumber.
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cn &= 0xFFFF;
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cmdp += 2;
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break;
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case 'a':
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case 'A':
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fmtlen = param_get8(Cmd, cmdp+1);
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cmdp += 2;
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bool is_ftm_ok = FALSE;
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uint8_t ftms[] = {26,33,34,35,37};
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for ( uint8_t i = 0; i < sizeof(ftms); i++){
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if ( ftms[i] == fmtlen ) {
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is_ftm_ok = TRUE;
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}
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}
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// negated
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errors = !is_ftm_ok;
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break;
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default:
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PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
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errors = true;
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break;
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}
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}
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if ( fc == 0 ) errors = true;
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if ( errors ) return usage_lf_hid_brute();
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PrintAndLog("Brute-forcing HID reader");
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PrintAndLog("Press pm3-button to abort simulation or run another command");
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uint16_t up = cn;
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uint16_t down = cn;
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for (;;){
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if ( offline ) {
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printf("Device offline\n");
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return 2;
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}
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if (ukbhit()) {
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PrintAndLog("aborted via keyboard!");
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return sendPing();
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}
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// Do one up
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if ( up < 0xFFFF )
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if ( !sendTry(fmtlen, fc, up++, delay, bs)) return 1;
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// Do one down (if cardnumber is given)
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if ( cn > 1 )
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if ( down > 1 )
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if ( !sendTry(fmtlen, fc, --down, delay, bs)) return 1;
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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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{"help", CmdHelp, 1, "This help"},
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{"fskdemod",CmdHIDDemodFSK, 0, "Realtime HID FSK demodulator"},
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{"sim", CmdHIDSim, 0, "HID tag simulator"},
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{"clone", CmdHIDClone, 0, "Clone HID to T55x7"},
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{"wiegand", CmdHIDWiegand, 0, "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;
|
|
}
|