finish FSK graph index changes
[proxmark3-svn] / client / cmdlfio.c
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
11 #include <stdio.h>
12 #include <stdlib.h>
13 #include <string.h>
14 #include <inttypes.h>
15 #include <limits.h>
16 #include "cmdlfio.h"
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"
25 #include "lfdemod.h" //for IOdemodFSK + bytebits_to_byte
26 #include "util.h" //for sprint_bin_break
27
28 static int CmdHelp(const char *Cmd);
29
30 int CmdIOReadFSK(const char *Cmd)
31 {
32 int findone=0;
33 if(Cmd[0]=='1') findone=1;
34
35 UsbCommand c={CMD_IO_DEMOD_FSK};
36 c.arg[0]=findone;
37 SendCommand(&c);
38 return 0;
39 }
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");
50 return 0;
51 }
52 uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0};
53 size_t BitLen = getFromGraphBuf(BitStream);
54 if (BitLen==0) return 0;
55
56 int waveIdx = 0;
57 //get binary from fsk wave
58 idx = IOdemodFSK(BitStream,BitLen, &waveIdx);
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;
76 }
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);
123 setClockGrid(64, waveIdx + (idx*64));
124
125 if (g_debugMode){
126 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing demod buffer:",idx,64);
127 printDemodBuff();
128 }
129 return 1;
130 }
131
132 int CmdIOClone(const char *Cmd)
133 {
134 unsigned int hi = 0, lo = 0;
135 int n = 0, i = 0;
136 UsbCommand c;
137
138
139 //if (1 == sscanf(str, "0x%"SCNx32, &hi)) {
140 // value now contains the value in the string--decimal 255, in this case.
141 //}
142
143 while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
144 hi = (hi << 4) | (lo >> 28);
145 lo = (lo << 4) | (n & 0xf);
146 }
147
148 PrintAndLog("Cloning tag with ID %08x %08x", hi, lo);
149 PrintAndLog("Press pm3-button to abort simulation");
150 c.cmd = CMD_IO_CLONE_TAG;
151 c.arg[0] = hi;
152 c.arg[1] = lo;
153
154 SendCommand(&c);
155 return 0;
156 }
157
158 static command_t CommandTable[] =
159 {
160 {"help", CmdHelp, 1, "This help"},
161 {"demod", CmdFSKdemodIO, 1, "Demodulate IO Prox tag from the GraphBuffer"},
162 {"read", CmdIOReadFSK, 0, "['1'] Realtime IO FSK demodulate from antenna (option '1' for one tag only)"},
163 {"clone", CmdIOClone, 0, "Clone ioProx Tag"},
164 {NULL, NULL, 0, NULL}
165 };
166
167 int CmdLFIO(const char *Cmd)
168 {
169 CmdsParse(CommandTable, Cmd);
170 return 0;
171 }
172
173 int CmdHelp(const char *Cmd)
174 {
175 CmdsHelp(CommandTable);
176 return 0;
177 }
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