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a553f267 1//-----------------------------------------------------------------------------
2// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
3//
4// This code is licensed to you under the terms of the GNU GPL, version 2 or,
5// at your option, any later version. See the LICENSE.txt file for the text of
6// the license.
7//-----------------------------------------------------------------------------
8// Low frequency HID commands
9//-----------------------------------------------------------------------------
10
7fe9b0b7 11#include <stdio.h>
54a942b0 12#include <string.h>
902cb3c0 13#include "proxmark3.h"
7fe9b0b7 14#include "ui.h"
15#include "graph.h"
16#include "cmdparser.h"
17#include "cmdlfhid.h"
18
19static int CmdHelp(const char *Cmd);
20
21int CmdHIDDemod(const char *Cmd)
22{
23 if (GraphTraceLen < 4800) {
24 PrintAndLog("too short; need at least 4800 samples");
25 return 0;
26 }
27
28 GraphTraceLen = 4800;
29 for (int i = 0; i < GraphTraceLen; ++i) {
30 if (GraphBuffer[i] < 0) {
31 GraphBuffer[i] = 0;
32 } else {
33 GraphBuffer[i] = 1;
34 }
35 }
36 RepaintGraphWindow();
37 return 0;
38}
39
40int CmdHIDDemodFSK(const char *Cmd)
41{
42 UsbCommand c={CMD_HID_DEMOD_FSK};
43 SendCommand(&c);
44 return 0;
45}
46
47int CmdHIDSim(const char *Cmd)
38b20f75 48{
49 unsigned int hi = 0, lo = 0;
50 int n = 0, i = 0;
51
52 while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
53 hi = (hi << 4) | (lo >> 28);
54 lo = (lo << 4) | (n & 0xf);
55 }
56
57 PrintAndLog("Emulating tag with ID %x%16x", hi, lo);
58
59 UsbCommand c = {CMD_HID_SIM_TAG, {hi, lo, 0}};
60 SendCommand(&c);
61 return 0;
62}
63
64int CmdHIDClone(const char *Cmd)
7fe9b0b7 65{
54a942b0 66 unsigned int hi2 = 0, hi = 0, lo = 0;
035303ac 67 int n = 0, i = 0;
54a942b0 68 UsbCommand c;
7fe9b0b7 69
54a942b0 70 if (strchr(Cmd,'l') != 0) {
38b20f75 71 while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
54a942b0 72 hi2 = (hi2 << 4) | (hi >> 28);
73 hi = (hi << 4) | (lo >> 28);
74 lo = (lo << 4) | (n & 0xf);
75 }
38b20f75 76
54a942b0 77 PrintAndLog("Cloning tag with long ID %x%08x%08x", hi2, hi, lo);
38b20f75 78
54a942b0 79 c.d.asBytes[0] = 1;
38b20f75 80 }
81 else {
82 while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
54a942b0 83 hi = (hi << 4) | (lo >> 28);
84 lo = (lo << 4) | (n & 0xf);
85 }
38b20f75 86
54a942b0 87 PrintAndLog("Cloning tag with ID %x%08x", hi, lo);
38b20f75 88
54a942b0 89 hi2 = 0;
90 c.d.asBytes[0] = 0;
7fe9b0b7 91 }
38b20f75 92
93 c.cmd = CMD_HID_CLONE_TAG;
d16d20b1 94 c.arg[0] = hi2;
95 c.arg[1] = hi;
96 c.arg[2] = lo;
ec09b62d 97
ec09b62d 98 SendCommand(&c);
99 return 0;
100}
101
7fe9b0b7 102static command_t CommandTable[] =
103{
104 {"help", CmdHelp, 1, "This help"},
105 {"demod", CmdHIDDemod, 1, "Demodulate HID Prox Card II (not optimal)"},
54a942b0 106 {"fskdemod", CmdHIDDemodFSK, 1, "Realtime HID FSK demodulator"},
107 {"sim", CmdHIDSim, 1, "<ID> -- HID tag simulator"},
108 {"clone", CmdHIDClone, 1, "<ID> ['l'] -- Clone HID to T55x7 (tag must be in antenna)(option 'l' for 84bit ID)"},
7fe9b0b7 109 {NULL, NULL, 0, NULL}
110};
111
112int CmdLFHID(const char *Cmd)
113{
114 CmdsParse(CommandTable, Cmd);
115 return 0;
116}
117
118int CmdHelp(const char *Cmd)
119{
120 CmdsHelp(CommandTable);
121 return 0;
122}
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