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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 | |
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11 | #include <stdio.h> |
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12 | #include <string.h> |
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13 | //#include "proxusb.h" |
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14 | #include "proxmark3.h" |
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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) |
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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) |
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66 | { |
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67 | unsigned int hi2 = 0, hi = 0, lo = 0; |
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68 | int n = 0, i = 0; |
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69 | UsbCommand c; |
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70 | |
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71 | if (strchr(Cmd,'l') != 0) { |
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72 | while (sscanf(&Cmd[i++], "%1x", &n ) == 1) { |
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73 | hi2 = (hi2 << 4) | (hi >> 28); |
74 | hi = (hi << 4) | (lo >> 28); |
75 | lo = (lo << 4) | (n & 0xf); |
76 | } |
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77 | |
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78 | PrintAndLog("Cloning tag with long ID %x%08x%08x", hi2, hi, lo); |
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79 | |
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80 | c.d.asBytes[0] = 1; |
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81 | } |
82 | else { |
83 | while (sscanf(&Cmd[i++], "%1x", &n ) == 1) { |
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84 | hi = (hi << 4) | (lo >> 28); |
85 | lo = (lo << 4) | (n & 0xf); |
86 | } |
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87 | |
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88 | PrintAndLog("Cloning tag with ID %x%08x", hi, lo); |
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89 | |
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90 | hi2 = 0; |
91 | c.d.asBytes[0] = 0; |
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92 | } |
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93 | |
94 | c.cmd = CMD_HID_CLONE_TAG; |
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95 | c.arg[0] = hi2; |
96 | c.arg[1] = hi; |
97 | c.arg[2] = lo; |
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98 | |
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99 | SendCommand(&c); |
100 | return 0; |
101 | } |
102 | |
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103 | static command_t CommandTable[] = |
104 | { |
105 | {"help", CmdHelp, 1, "This help"}, |
106 | {"demod", CmdHIDDemod, 1, "Demodulate HID Prox Card II (not optimal)"}, |
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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)"}, |
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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 | } |