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 | |
ad939de5 |
11 | #include "cmdlfio.h" |
12 | |
c8622024 |
13 | #include <stdio.h> |
14 | #include <stdlib.h> |
15 | #include <string.h> |
16 | #include <inttypes.h> |
17 | #include <limits.h> |
ad939de5 |
18 | #include "comms.h" |
c8622024 |
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 | } |