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b9957414 | 1 | //----------------------------------------------------------------------------- |
2 | // | |
3 | // This code is licensed to you under the terms of the GNU GPL, version 2 or, | |
4 | // at your option, any later version. See the LICENSE.txt file for the text of | |
5 | // the license. | |
6 | //----------------------------------------------------------------------------- | |
7 | // Low frequency ioProx commands | |
8 | // FSK2a, rf/64, 64 bits (complete) | |
9 | //----------------------------------------------------------------------------- | |
10 | ||
c8622024 | 11 | #include <stdio.h> |
12 | #include <stdlib.h> | |
13 | #include <string.h> | |
14 | #include <inttypes.h> | |
15 | #include <limits.h> | |
2b4898ec | 16 | #include "cmdlfio.h" |
c8622024 | 17 | #include "proxmark3.h" |
18 | #include "data.h" | |
19 | #include "graph.h" | |
20 | #include "ui.h" | |
21 | #include "cmdparser.h" | |
22 | #include "cmdmain.h" | |
23 | #include "cmddata.h" | |
24 | #include "cmdlf.h" | |
cf4640b9 | 25 | #include "lfdemod.h" //for IOdemodFSK + bytebits_to_byte |
26 | #include "util.h" //for sprint_bin_break | |
c8622024 | 27 | |
28 | static int CmdHelp(const char *Cmd); | |
29 | ||
cf4640b9 | 30 | int CmdIOReadFSK(const char *Cmd) |
c8622024 | 31 | { |
083ca3de | 32 | int findone=0; |
33 | if(Cmd[0]=='1') findone=1; | |
3fe4ff4f | 34 | |
c8622024 | 35 | UsbCommand c={CMD_IO_DEMOD_FSK}; |
083ca3de | 36 | c.arg[0]=findone; |
c8622024 | 37 | SendCommand(&c); |
38 | return 0; | |
39 | } | |
cf4640b9 | 40 | |
41 | //by marshmellow | |
42 | //IO-Prox demod - FSK RF/64 with preamble of 000000001 | |
43 | //print ioprox ID and some format details | |
44 | int CmdFSKdemodIO(const char *Cmd) | |
45 | { | |
46 | int idx=0; | |
47 | //something in graphbuffer? | |
48 | if (GraphTraceLen < 65) { | |
49 | if (g_debugMode)PrintAndLog("DEBUG: not enough samples in GraphBuffer"); | |
c8622024 | 50 | return 0; |
51 | } | |
cf4640b9 | 52 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; |
53 | size_t BitLen = getFromGraphBuf(BitStream); | |
54 | if (BitLen==0) return 0; | |
55 | ||
1c70664a | 56 | int waveIdx = 0; |
cf4640b9 | 57 | //get binary from fsk wave |
1c70664a | 58 | idx = IOdemodFSK(BitStream,BitLen, &waveIdx); |
cf4640b9 | 59 | if (idx<0){ |
60 | if (g_debugMode){ | |
61 | if (idx==-1){ | |
62 | PrintAndLog("DEBUG: Just Noise Detected"); | |
63 | } else if (idx == -2) { | |
64 | PrintAndLog("DEBUG: not enough samples"); | |
65 | } else if (idx == -3) { | |
66 | PrintAndLog("DEBUG: error during fskdemod"); | |
67 | } else if (idx == -4) { | |
68 | PrintAndLog("DEBUG: Preamble not found"); | |
69 | } else if (idx == -5) { | |
70 | PrintAndLog("DEBUG: Separator bits not found"); | |
71 | } else { | |
72 | PrintAndLog("DEBUG: Error demoding fsk %d", idx); | |
73 | } | |
74 | } | |
75 | return 0; | |
c8622024 | 76 | } |
cf4640b9 | 77 | if (idx==0){ |
78 | if (g_debugMode){ | |
79 | PrintAndLog("DEBUG: IO Prox Data not found - FSK Bits: %d",BitLen); | |
80 | if (BitLen > 92) PrintAndLog("%s", sprint_bin_break(BitStream,92,16)); | |
81 | } | |
82 | return 0; | |
83 | } | |
84 | //Index map | |
85 | //0 10 20 30 40 50 60 | |
86 | //| | | | | | | | |
87 | //01234567 8 90123456 7 89012345 6 78901234 5 67890123 4 56789012 3 45678901 23 | |
88 | //----------------------------------------------------------------------------- | |
89 | //00000000 0 11110000 1 facility 1 version* 1 code*one 1 code*two 1 ???????? 11 | |
90 | // | |
91 | //XSF(version)facility:codeone+codetwo (raw) | |
92 | //Handle the data | |
93 | if (idx+64>BitLen) { | |
94 | if (g_debugMode) PrintAndLog("not enough bits found - bitlen: %d",BitLen); | |
95 | return 0; | |
96 | } | |
97 | PrintAndLog("%d%d%d%d%d%d%d%d %d",BitStream[idx], BitStream[idx+1], BitStream[idx+2], BitStream[idx+3], BitStream[idx+4], BitStream[idx+5], BitStream[idx+6], BitStream[idx+7], BitStream[idx+8]); | |
98 | PrintAndLog("%d%d%d%d%d%d%d%d %d",BitStream[idx+9], BitStream[idx+10], BitStream[idx+11],BitStream[idx+12],BitStream[idx+13],BitStream[idx+14],BitStream[idx+15],BitStream[idx+16],BitStream[idx+17]); | |
99 | PrintAndLog("%d%d%d%d%d%d%d%d %d facility",BitStream[idx+18], BitStream[idx+19], BitStream[idx+20],BitStream[idx+21],BitStream[idx+22],BitStream[idx+23],BitStream[idx+24],BitStream[idx+25],BitStream[idx+26]); | |
100 | PrintAndLog("%d%d%d%d%d%d%d%d %d version",BitStream[idx+27], BitStream[idx+28], BitStream[idx+29],BitStream[idx+30],BitStream[idx+31],BitStream[idx+32],BitStream[idx+33],BitStream[idx+34],BitStream[idx+35]); | |
101 | PrintAndLog("%d%d%d%d%d%d%d%d %d code1",BitStream[idx+36], BitStream[idx+37], BitStream[idx+38],BitStream[idx+39],BitStream[idx+40],BitStream[idx+41],BitStream[idx+42],BitStream[idx+43],BitStream[idx+44]); | |
102 | PrintAndLog("%d%d%d%d%d%d%d%d %d code2",BitStream[idx+45], BitStream[idx+46], BitStream[idx+47],BitStream[idx+48],BitStream[idx+49],BitStream[idx+50],BitStream[idx+51],BitStream[idx+52],BitStream[idx+53]); | |
103 | PrintAndLog("%d%d%d%d%d%d%d%d %d%d checksum",BitStream[idx+54],BitStream[idx+55],BitStream[idx+56],BitStream[idx+57],BitStream[idx+58],BitStream[idx+59],BitStream[idx+60],BitStream[idx+61],BitStream[idx+62],BitStream[idx+63]); | |
104 | ||
105 | uint32_t code = bytebits_to_byte(BitStream+idx,32); | |
106 | uint32_t code2 = bytebits_to_byte(BitStream+idx+32,32); | |
107 | uint8_t version = bytebits_to_byte(BitStream+idx+27,8); //14,4 | |
108 | uint8_t facilitycode = bytebits_to_byte(BitStream+idx+18,8) ; | |
109 | uint16_t number = (bytebits_to_byte(BitStream+idx+36,8)<<8)|(bytebits_to_byte(BitStream+idx+45,8)); //36,9 | |
110 | uint8_t crc = bytebits_to_byte(BitStream+idx+54,8); | |
111 | uint16_t calccrc = 0; | |
112 | ||
113 | for (uint8_t i=1; i<6; ++i){ | |
114 | calccrc += bytebits_to_byte(BitStream+idx+9*i,8); | |
115 | } | |
116 | calccrc &= 0xff; | |
117 | calccrc = 0xff - calccrc; | |
118 | ||
119 | char *crcStr = (crc == calccrc) ? "crc ok": "!crc"; | |
120 | ||
121 | PrintAndLog("IO Prox XSF(%02d)%02x:%05d (%08x%08x) [%02x %s]",version,facilitycode,number,code,code2, crc, crcStr); | |
122 | setDemodBuf(BitStream,64,idx); | |
1c70664a | 123 | setClockGrid(64, waveIdx + (idx*64)); |
9fe4507c | 124 | |
cf4640b9 | 125 | if (g_debugMode){ |
126 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx,64); | |
127 | printDemodBuff(); | |
128 | } | |
129 | return 1; | |
130 | } | |
131 | ||
c8622024 | 132 | int CmdIOClone(const char *Cmd) |
133 | { | |
134 | unsigned int hi = 0, lo = 0; | |
135 | int n = 0, i = 0; | |
edf8806f | 136 | char ch; |
c8622024 | 137 | UsbCommand c; |
138 | ||
c8622024 | 139 | while (sscanf(&Cmd[i++], "%1x", &n ) == 1) { |
140 | hi = (hi << 4) | (lo >> 28); | |
141 | lo = (lo << 4) | (n & 0xf); | |
142 | } | |
143 | ||
edf8806f | 144 | if (sscanf(&Cmd[--i], "%c", &ch) == 1) { |
145 | PrintAndLog("Usage: lf io clone <tag-ID>"); | |
146 | return 0; | |
147 | } | |
148 | ||
149 | PrintAndLog("Cloning ioProx tag with ID %08x %08x", hi, lo); | |
150 | ||
c8622024 | 151 | c.cmd = CMD_IO_CLONE_TAG; |
152 | c.arg[0] = hi; | |
153 | c.arg[1] = lo; | |
154 | ||
155 | SendCommand(&c); | |
156 | return 0; | |
157 | } | |
158 | ||
159 | static command_t CommandTable[] = | |
160 | { | |
161 | {"help", CmdHelp, 1, "This help"}, | |
cf4640b9 | 162 | {"demod", CmdFSKdemodIO, 1, "Demodulate IO Prox tag from the GraphBuffer"}, |
163 | {"read", CmdIOReadFSK, 0, "['1'] Realtime IO FSK demodulate from antenna (option '1' for one tag only)"}, | |
709665b5 | 164 | {"clone", CmdIOClone, 0, "Clone ioProx Tag"}, |
c8622024 | 165 | {NULL, NULL, 0, NULL} |
166 | }; | |
167 | ||
168 | int CmdLFIO(const char *Cmd) | |
169 | { | |
170 | CmdsParse(CommandTable, Cmd); | |
171 | return 0; | |
172 | } | |
173 | ||
174 | int CmdHelp(const char *Cmd) | |
175 | { | |
176 | CmdsHelp(CommandTable); | |
177 | return 0; | |
2767fc02 | 178 | } |