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[proxmark3-svn] / client / cmdlfhid.c
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
11 #include <stdio.h>
12 #include <string.h>
13 //#include "proxusb.h"
14 #include "proxmark3.h"
15 #include "ui.h"
16 #include "graph.h"
17 #include "cmdparser.h"
18 #include "cmdlfhid.h"
19
20 static int CmdHelp(const char *Cmd);
21
22 int CmdHIDDemod(const char *Cmd)
23 {
24 if (GraphTraceLen < 4800) {
25 PrintAndLog("too short; need at least 4800 samples");
26 return 0;
27 }
28
29 GraphTraceLen = 4800;
30 for (int i = 0; i < GraphTraceLen; ++i) {
31 if (GraphBuffer[i] < 0) {
32 GraphBuffer[i] = 0;
33 } else {
34 GraphBuffer[i] = 1;
35 }
36 }
37 RepaintGraphWindow();
38 return 0;
39 }
40
41 int CmdHIDDemodFSK(const char *Cmd)
42 {
43 UsbCommand c={CMD_HID_DEMOD_FSK};
44 SendCommand(&c);
45 return 0;
46 }
47
48 int CmdHIDSim(const char *Cmd)
49 {
50 unsigned int hi = 0, lo = 0;
51 int n = 0, i = 0;
52
53 while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
54 hi = (hi << 4) | (lo >> 28);
55 lo = (lo << 4) | (n & 0xf);
56 }
57
58 PrintAndLog("Emulating tag with ID %x%16x", hi, lo);
59
60 UsbCommand c = {CMD_HID_SIM_TAG, {hi, lo, 0}};
61 SendCommand(&c);
62 return 0;
63 }
64
65 int CmdHIDClone(const char *Cmd)
66 {
67 unsigned int hi2 = 0, hi = 0, lo = 0;
68 int n = 0, i = 0;
69 UsbCommand c;
70
71 if (strchr(Cmd,'l') != 0) {
72 while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
73 hi2 = (hi2 << 4) | (hi >> 28);
74 hi = (hi << 4) | (lo >> 28);
75 lo = (lo << 4) | (n & 0xf);
76 }
77
78 PrintAndLog("Cloning tag with long ID %x%08x%08x", hi2, hi, lo);
79
80 c.d.asBytes[0] = 1;
81 }
82 else {
83 while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
84 hi = (hi << 4) | (lo >> 28);
85 lo = (lo << 4) | (n & 0xf);
86 }
87
88 PrintAndLog("Cloning tag with ID %x%08x", hi, lo);
89
90 hi2 = 0;
91 c.d.asBytes[0] = 0;
92 }
93
94 c.cmd = CMD_HID_CLONE_TAG;
95 c.arg[0] = hi2;
96 c.arg[1] = hi;
97 c.arg[2] = lo;
98
99 SendCommand(&c);
100 return 0;
101 }
102
103 static command_t CommandTable[] =
104 {
105 {"help", CmdHelp, 1, "This help"},
106 {"demod", CmdHIDDemod, 1, "Demodulate HID Prox Card II (not optimal)"},
107 {"fskdemod", CmdHIDDemodFSK, 1, "Realtime HID FSK demodulator"},
108 {"sim", CmdHIDSim, 1, "<ID> -- HID tag simulator"},
109 {"clone", CmdHIDClone, 1, "<ID> ['l'] -- Clone HID to T55x7 (tag must be in antenna)(option 'l' for 84bit ID)"},
110 {NULL, NULL, 0, NULL}
111 };
112
113 int CmdLFHID(const char *Cmd)
114 {
115 CmdsParse(CommandTable, Cmd);
116 return 0;
117 }
118
119 int CmdHelp(const char *Cmd)
120 {
121 CmdsHelp(CommandTable);
122 return 0;
123 }
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