// at your option, any later version. See the LICENSE.txt file for the text of
// the license.
//-----------------------------------------------------------------------------
-// Low frequency HID commands
+// Low frequency HID commands (known)
+//
+// Useful resources:
+// RF interface, programming a T55x7 clone, 26-bit HID H10301 encoding:
+// http://www.proxmark.org/files/Documents/125%20kHz%20-%20HID/HID_format_example.pdf
+//
+// "Understanding Card Data Formats"
+// https://www.hidglobal.com/sites/default/files/hid-understanding_card_data_formats-wp-en.pdf
+//
+// "What Format Do You Need?"
+// https://www.hidglobal.com/sites/default/files/resource_files/hid-prox-br-en.pdf
//-----------------------------------------------------------------------------
+#include "cmdlfhid.h"
+
#include <stdio.h>
-#include "proxusb.h"
+#include <string.h>
+#include "comms.h"
#include "ui.h"
#include "graph.h"
#include "cmdparser.h"
-#include "cmdlfhid.h"
+#include "cmddata.h" //for g_debugMode, demodbuff cmds
+#include "lfdemod.h" // for HIDdemodFSK
+#include "parity.h" // for parity
+#include "util.h" // for param_get8,32,64
static int CmdHelp(const char *Cmd);
-int CmdHIDDemod(const char *Cmd)
+/**
+ * Packs an HID ID from component parts.
+ *
+ * This only works with 26, 34, 35, 37, and 48 bit card IDs.
+ *
+ * Returns false on invalid inputs.
+ */
+bool pack_hid(/* out */ uint32_t *hi2, /* out */ uint32_t *hi, /* out */ uint32_t *lo, /* in */ const hid_info *info) {
+ uint32_t higher = 0, high = 0, low = 0;
+
+ switch (info->fmtLen) {
+ case 26: // HID H10301
+ low |= (info->cardnum & 0xffff) << 1;
+ low |= (info->fc & 0xff) << 17;
+
+ if (info->parityValid) {
+ // Calculate parity
+ low |= oddparity32((low >> 1) & 0xfff) & 1;
+ low |= (evenparity32((low >> 13) & 0xfff) & 1) << 25;
+ }
+ break;
+
+ case 34: // H10306
+ low |= (info->cardnum & 0xffff) << 1;
+ low |= (info->fc & 0x7fff) << 17;
+ high |= (info->fc & 0x8000) >> 15;
+
+ if (info->parityValid) {
+ // Calculate parity
+ high |= (evenparity32((high & 0x00000001) ^ (low & 0xFFFE0000)) & 1) << 1;
+ low |= (oddparity32(low & 0x0001FFFE) & 1);
+ }
+ break;
+
+ case 35: // (Corporate 1000 35-bit)
+ low |= (info->cardnum & 0xfffff) << 1;
+ low |= (info->fc & 0x7ff) << 21;
+ high |= (info->fc & 0x800) >> 11;
+
+ if (info->parityValid) {
+ // Calculate parity
+ high |= (evenparity32((high & 0x00000001) ^ (low & 0xB6DB6DB6)) & 1) << 1;
+ low |= (oddparity32( (high & 0x00000003) ^ (low & 0x6DB6DB6C)) & 1);
+ high |= (oddparity32( (high & 0x00000003) ^ (low & 0xFFFFFFFF)) & 1) << 2;
+ }
+ break;
+
+ case 37: //H10304
+ low |= (info->cardnum & 0x7ffff) << 1;
+ low |= (info->fc & 0xfff) << 20;
+ high |= (info->fc & 0xf000) >> 12;
+
+ if (info->parityValid) {
+ // Calculate parity
+ high |= (evenparity32((high & 0x0000000F) ^ (low & 0xFFFC0000)) & 1) << 4;
+ low |= (oddparity32(low & 0x0007FFFE) & 1);
+ }
+ break;
+
+ case 48: // Corporate 1000 48-bit
+ low |= (info->cardnum & 0x7FFFFF) << 1;
+ low |= (info->fc & 0xff) << 24;
+ high |= (info->fc & 0x3FFF00) >> 8;
+
+ if (info->parityValid) {
+ // Calculate parity
+ high |= (evenparity32((high & 0x00001B6D) ^ (low & 0xB6DB6DB6)) & 1) << 14;
+ low |= (oddparity32( (high & 0x000036DB) ^ (low & 0x6DB6DB6C)) & 1);
+ high |= (oddparity32( (high & 0x00007FFF) ^ (low & 0xFFFFFFFF)) & 1) << 15;
+ }
+ break;
+
+ default:
+ // Invalid / unsupported length
+ return false;
+ }
+
+ // Set the format length bits
+ if (info->fmtLen < 37) {
+ // Bit 37 is always set
+ high |= 0x20;
+
+ // Set the bit corresponding to the length.
+ if (info->fmtLen < 32)
+ low |= 1 << info->fmtLen;
+ else
+ high |= 1 << (info->fmtLen - 32);
+
+ } else if (info->fmtLen > 37){
+ if (info->fmtLen < 64)
+ high |= 1 << (info->fmtLen - 32);
+ else
+ higher |= 1 << (info->fmtLen - 64);
+ }
+ // Return result only if successful.
+ *hi2 = higher;
+ *hi = high;
+ *lo = low;
+ return true;
+}
+
+/**
+ * Unpacks an HID ID into its component parts.
+ *
+ * This only works with 26, 34, 35, 37, and 48 bit card IDs.
+ *
+ * Returns false on invalid inputs.
+ */
+bool unpack_hid(hid_info *out, uint32_t hi2, uint32_t hi, uint32_t lo) {
+ memset(out, 0, sizeof(hid_info));
+ uint8_t fmtLen = 0;
+
+ uint32_t hFmt; // for calculating card length
+ if ((hi2 & 0x000FFFFF) > 0) { // > 64 bits
+ hFmt = hi2 & 0x000FFFFF;
+ fmtLen = 64;
+ } else if ((hi & 0xFFFFFFC0) > 0) { // < 63-38 bits
+ hFmt = hi & 0xFFFFFFC0;
+ fmtLen = 32;
+ } else if ((hi & 0x00000020) == 0) { // 37 bits
+ hFmt = 0;
+ fmtLen = 37;
+ } else if ((hi & 0x0000001F) > 0){ // 36-32 bits
+ hFmt = hi & 0x0000001F;
+ fmtLen = 32;
+ } else { // <32 bits
+ hFmt = lo;
+ fmtLen = 0;
+ }
+
+ while (hFmt > 1) {
+ hFmt >>= 1;
+ fmtLen++;
+ }
+ out->fmtLen = fmtLen;
+ switch (out->fmtLen) {
+ case 26: // HID H10301
+ out->cardnum = (lo >> 1) & 0xFFFF;
+ out->fc = (lo >> 17) & 0xFF;
+
+ if (g_debugMode) {
+ PrintAndLog("oddparity : input=%x, calculated=%d, provided=%d",
+ (lo >> 1) & 0xFFF, oddparity32((lo >> 1) & 0xFFF), lo & 1);
+ PrintAndLog("evenparity: input=%x, calculated=%d, provided=%d",
+ (lo >> 13) & 0xFFF, evenparity32((lo >> 13) & 0xFFF) & 1, (lo >> 25) & 1);
+ }
+
+ out->parityValid =
+ (oddparity32((lo >> 1) & 0xFFF) == (lo & 1)) &&
+ ((evenparity32((lo >> 13) & 0xFFF) & 1) == ((lo >> 25) & 1));
+ break;
+
+ case 34: // HID H10306
+ out->cardnum = (lo >> 1) & 0xFFFF;
+ out->fc = ((hi & 1) << 15) | (lo >> 17);
+ out->parityValid =
+ ((evenparity32((hi & 0x00000001) ^ (lo & 0xFFFE0000)) & 1) == ((hi >> 1) & 1)) &&
+ ((oddparity32(lo & 0x0001FFFE) & 1) == ((lo & 1)));
+ break;
+
+ case 35: // HID Corporate 1000-35
+ out->cardnum = (lo >> 1) & 0xFFFFF;
+ out->fc = ((hi & 1) << 11) | (lo >> 21);
+ out->parityValid =
+ (evenparity32((hi & 0x00000001) ^ (lo & 0xB6DB6DB6)) == ((hi >> 1) & 1)) &&
+ (oddparity32( (hi & 0x00000003) ^ (lo & 0x6DB6DB6C)) == ((lo >> 0) & 1)) &&
+ (oddparity32( (hi & 0x00000003) ^ (lo & 0xFFFFFFFF)) == ((hi >> 2) & 1));
+ if (g_debugMode) {
+ PrintAndLog("Parity check: calculated {%d, %d, %d}, provided {%d, %d, %d}",
+ evenparity32((hi & 0x00000001) ^ (lo & 0xB6DB6DB6)),
+ oddparity32( (hi & 0x00000003) ^ (lo & 0x6DB6DB6C)),
+ oddparity32( (hi & 0x00000003) ^ (lo & 0xFFFFFFFF)),
+ ((hi >> 1) & 1),
+ ((lo >> 0) & 1),
+ ((hi >> 2) & 1)
+ );
+ }
+ break;
+
+ case 37: // HID H10304
+ out->fmtLen = 37;
+ out->cardnum = (lo >> 1) & 0x7FFFF;
+ out->fc = ((hi & 0xF) << 12) | (lo >> 20);
+ out->parityValid =
+ (evenparity32((hi & 0x0000000F) ^ (lo & 0xFFFC0000)) == ((hi >> 4) & 1)) &&
+ (oddparity32( lo & 0x0007FFFE) == (lo & 1));
+ break;
+
+ case 48: // HID Corporate 1000-48
+ out->cardnum = (lo >> 1) & 0x7FFFFF; //Start 24, 23 length
+ out->fc = ((hi & 0x3FFF) << 8 ) | (lo >> 24); //Start 2, 22 length
+ out->parityValid =
+ (evenparity32((hi & 0x00001B6D) ^ (lo & 0xB6DB6DB6)) == ((hi >> 14) & 1)) &&
+ (oddparity32( (hi & 0x000036DB) ^ (lo & 0x6DB6DB6C)) == ((lo >> 0) & 1)) &&
+ (oddparity32( (hi & 0x00007FFF) ^ (lo & 0xFFFFFFFF)) == ((hi >> 15) & 1));
+ if (g_debugMode) {
+ PrintAndLog("Parity check: calculated {%d, %d, %d}, provided {%d, %d, %d}",
+ evenparity32((hi & 0x00001B6D) ^ (lo & 0xB6DB6DB6)),
+ oddparity32( (hi & 0x000036DB) ^ (lo & 0x6DB6DB6C)),
+ oddparity32( (hi & 0x00007FFF) ^ (lo & 0xFFFFFFFF)),
+ ((hi >> 14) & 1),
+ ((lo >> 0) & 1),
+ ((hi >> 15) & 1)
+ );
+ }
+ break;
+
+ default:
+ return false;
+ }
+ return true;
+}
+
+/**
+ * Converts a hex string to component "hi2", "hi" and "lo" 32-bit integers, one nibble
+ * at a time.
+ *
+ * Returns the number of nibbles (4 bits) entered.
+ */
+int hexstring_to_int96(/* out */ uint32_t* hi2,/* out */ uint32_t* hi, /* out */ uint32_t* lo, const char* str) {
+ // TODO: Replace this with param_gethex when it supports arbitrary length
+ // inputs.
+ int n = 0, i = 0;
+
+ while (sscanf(&str[i++], "%1x", &n ) == 1) {
+ *hi2 = (*hi2 << 4) | (*hi >> 28);
+ *hi = (*hi << 4) | (*lo >> 28);
+ *lo = (*lo << 4) | (n & 0xf);
+ }
+
+ return i - 1;
+}
+
+//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 CmdFSKdemodHID(const char *Cmd)
{
- if (GraphTraceLen < 4800) {
- PrintAndLog("too short; need at least 4800 samples");
+ //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 BitStream[MAX_GRAPH_TRACE_LEN]={0};
+ size_t BitLen = getFromGraphBuf(BitStream);
+ if (BitLen==0) return 0;
+ //get binary from fsk wave
+ int waveIdx = 0;
+ int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo, &waveIdx);
+ if (idx<0){
+ if (g_debugMode){
+ if (idx==-1){
+ PrintAndLog("DEBUG: Just Noise Detected");
+ } else if (idx == -2) {
+ PrintAndLog("DEBUG: Error demoding fsk");
+ } else if (idx == -3) {
+ PrintAndLog("DEBUG: Preamble not found");
+ } else if (idx == -4) {
+ PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen);
+ } else {
+ PrintAndLog("DEBUG: Error demoding fsk %d", idx);
+ }
+ }
+ return 0;
+ }
+ if (hi2==0 && hi==0 && lo==0) {
+ if (g_debugMode) PrintAndLog("DEBUG: Error - no values found");
return 0;
}
+
+ hid_info card_info;
+ bool ret = unpack_hid(&card_info, (uint32_t)hi2, (uint32_t)hi, (uint32_t)lo);
+
+ if (hi2 != 0)
+ PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d) - Format Len: %u bits - FC: %u - Card: %u",
+ (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF,
+ card_info.fmtLen, card_info.fc, card_info.cardnum);
+ else
+ PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %u bits - FC: %u - Card: %u",
+ (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF,
+ card_info.fmtLen, card_info.fc, card_info.cardnum);
- GraphTraceLen = 4800;
- for (int i = 0; i < GraphTraceLen; ++i) {
- if (GraphBuffer[i] < 0) {
- GraphBuffer[i] = 0;
- } else {
- GraphBuffer[i] = 1;
- }
+ if (card_info.fmtLen == 26 || card_info.fmtLen == 35 || card_info.fmtLen == 48) {
+ PrintAndLog("Parity: %s", card_info.parityValid ? "valid" : "invalid");
}
- RepaintGraphWindow();
- return 0;
+ if (!ret) {
+ PrintAndLog("Invalid or unsupported tag length.");
+ }
+ setDemodBuf(BitStream,BitLen,idx);
+ setClockGrid(50, waveIdx + (idx*50));
+ if (g_debugMode){
+ PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen);
+ printDemodBuff();
+ }
+ return 1;
}
-int CmdHIDDemodFSK(const char *Cmd)
+int CmdHIDReadFSK(const char *Cmd)
{
+ int findone=0;
+ if(Cmd[0]=='1') findone=1;
UsbCommand c={CMD_HID_DEMOD_FSK};
+ c.arg[0]=findone;
SendCommand(&c);
return 0;
}
int CmdHIDSim(const char *Cmd)
{
- unsigned int hi = 0, lo = 0;
- int n = 0, i = 1;
-
- while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
- hi = (hi << 4) | (lo >> 28);
- lo = (lo << 4) | (n & 0xf);
+ uint32_t hi2 = 0, hi = 0, lo = 0;
+ hexstring_to_int96(&hi2, &hi, &lo, Cmd);
+ if (hi >= 0x40 || hi2 != 0) {
+ PrintAndLog("This looks like a long tag ID. Use 'lf simfsk' for long tags. Aborting!");
+ return 0;
}
- PrintAndLog("Emulating tag with ID %x%16x", hi, lo);
+ PrintAndLog("Emulating tag with ID %x%08x", hi, lo);
+ PrintAndLog("Press pm3-button to abort simulation");
UsbCommand c = {CMD_HID_SIM_TAG, {hi, lo, 0}};
SendCommand(&c);
return 0;
}
+int CmdHIDClone(const char *Cmd)
+{
+ unsigned int hi2 = 0, hi = 0, lo = 0;
+ UsbCommand c;
+ hexstring_to_int96(&hi2, &hi, &lo, Cmd);
+
+ if (hi >= 0x40 || hi2 != 0) {
+ PrintAndLog("Cloning tag with long ID %x%08x%08x", hi2, hi, lo);
+ c.d.asBytes[0] = 1;
+ } else {
+ PrintAndLog("Cloning tag with ID %x%08x", hi, lo);
+ c.d.asBytes[0] = 0;
+ }
+
+ c.cmd = CMD_HID_CLONE_TAG;
+ c.arg[0] = hi2;
+ c.arg[1] = hi;
+ c.arg[2] = lo;
+
+ SendCommand(&c);
+ return 0;
+}
+
+
+int CmdHIDPack(const char *Cmd) {
+ uint32_t hi2 = 0, hi = 0, lo = 0;
+
+ if (strlen(Cmd)<3) {
+ PrintAndLog("Usage: lf hid pack <length> <facility code (decimal)> <card number (decimal)>");
+ PrintAndLog(" sample: lf hid pack 26 123 4567");
+ return 0;
+ }
+ uint8_t fmtLen = param_get8(Cmd, 0);
+
+ hid_info card_info;
+ card_info.fmtLen = fmtLen;
+ card_info.fc = param_get32ex(Cmd, 1, 0, 10);
+ card_info.cardnum = param_get64ex(Cmd, 2, 0, 10);
+ card_info.parityValid = true;
+
+ bool ret = pack_hid(&hi2, &hi, &lo, &card_info);
+ if (ret) {
+ if (hi2 != 0) {
+ PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d) - Format Len: %u bits - FC: %u - Card: %u",
+ (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF,
+ card_info.fmtLen, card_info.fc, card_info.cardnum);
+ } else {
+ PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %u bits - FC: %u - Card: %u",
+ (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF,
+ card_info.fmtLen, card_info.fc, card_info.cardnum);
+ }
+ } else {
+ PrintAndLog("Invalid or unsupported tag length.");
+ }
+ return 0;
+}
+
+
+int CmdHIDUnpack(const char *Cmd)
+{
+ uint32_t hi2 = 0, hi = 0, lo = 0;
+ if (strlen(Cmd)<1) {
+ PrintAndLog("Usage: lf hid unpack <ID>");
+ PrintAndLog(" sample: lf hid unpack 2006f623ae");
+ return 0;
+ }
+
+ hexstring_to_int96(&hi2, &hi, &lo, Cmd);
+
+ hid_info card_info;
+ bool ret = unpack_hid(&card_info, hi2, hi, lo);
+
+ if (hi2 != 0) {
+ PrintAndLog("HID Prox TAG ID: %x%08x%08x (%d) - Format Len: %u bits - FC: %u - Card: %u",
+ (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF,
+ card_info.fmtLen, card_info.fc, card_info.cardnum);
+ } else {
+ PrintAndLog("HID Prox TAG ID: %x%08x (%d) - Format Len: %u bits - FC: %u - Card: %u",
+ (unsigned int) hi, (unsigned int) lo, (unsigned int) (lo>>1) & 0xFFFF,
+ card_info.fmtLen, card_info.fc, card_info.cardnum);
+ }
+ PrintAndLog("Parity: %s", card_info.parityValid ? "valid" : "invalid");
+
+ if (!ret) {
+ PrintAndLog("Invalid or unsupported tag length.");
+ }
+ return 0;
+}
+
+
static command_t CommandTable[] =
{
{"help", CmdHelp, 1, "This help"},
- {"demod", CmdHIDDemod, 1, "Demodulate HID Prox Card II (not optimal)"},
- {"fskdemod", CmdHIDDemodFSK, 0, "Realtime HID FSK demodulator"},
+ {"demod", CmdFSKdemodHID, 1, "Demodulate HID Prox from GraphBuffer"},
+ {"read", CmdHIDReadFSK, 0, "['1'] Realtime HID FSK Read from antenna (option '1' for one tag only)"},
{"sim", CmdHIDSim, 0, "<ID> -- HID tag simulator"},
+ {"clone", CmdHIDClone, 0, "<ID> -- Clone HID to T55x7 (tag must be in antenna)"},
+ {"pack", CmdHIDPack, 1, "<len> <fc> <num> -- packs an HID ID from its length, facility code and card number"},
+ {"unpack", CmdHIDUnpack, 1, "<ID> -- unpacks an HID ID to its length, facility code and card number"},
{NULL, NULL, 0, NULL}
};
projects / proxmark3-svn / blobdiff