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a553f267 | 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 | //----------------------------------------------------------------------------- | |
b9957414 | 8 | // Low frequency HID commands (known) |
ab20cc35 MF |
9 | // |
10 | // Useful resources: | |
11 | // RF interface, programming a T55x7 clone, 26-bit HID H10301 encoding: | |
12 | // http://www.proxmark.org/files/Documents/125%20kHz%20-%20HID/HID_format_example.pdf | |
13 | // | |
14 | // "Understanding Card Data Formats" | |
15 | // https://www.hidglobal.com/sites/default/files/hid-understanding_card_data_formats-wp-en.pdf | |
16 | // | |
17 | // "What Format Do You Need?" | |
18 | // https://www.hidglobal.com/sites/default/files/resource_files/hid-prox-br-en.pdf | |
a553f267 | 19 | //----------------------------------------------------------------------------- |
20 | ||
ad939de5 | 21 | #include "cmdlfhid.h" |
22 | ||
7fe9b0b7 | 23 | #include <stdio.h> |
54a942b0 | 24 | #include <string.h> |
ad939de5 | 25 | #include "comms.h" |
7fe9b0b7 | 26 | #include "ui.h" |
27 | #include "graph.h" | |
28 | #include "cmdparser.h" | |
6cd2eef4 | 29 | #include "cmddata.h" //for g_debugMode, demodbuff cmds |
30 | #include "lfdemod.h" // for HIDdemodFSK | |
b5a5fc4d | 31 | #include "hidcardformats.h" |
32 | #include "hidcardformatutils.h" | |
1ee624fe | 33 | #include "util.h" // for param_get8,32,64 |
7fe9b0b7 | 34 | |
ab20cc35 | 35 | |
ab20cc35 | 36 | /** |
1ee624fe | 37 | * Converts a hex string to component "hi2", "hi" and "lo" 32-bit integers, one nibble |
ab20cc35 MF |
38 | * at a time. |
39 | * | |
40 | * Returns the number of nibbles (4 bits) entered. | |
41 | */ | |
1ee624fe | 42 | int hexstring_to_int96(/* out */ uint32_t* hi2,/* out */ uint32_t* hi, /* out */ uint32_t* lo, const char* str) { |
ab20cc35 MF |
43 | // TODO: Replace this with param_gethex when it supports arbitrary length |
44 | // inputs. | |
45 | int n = 0, i = 0; | |
46 | ||
47 | while (sscanf(&str[i++], "%1x", &n ) == 1) { | |
1ee624fe | 48 | *hi2 = (*hi2 << 4) | (*hi >> 28); |
ab20cc35 MF |
49 | *hi = (*hi << 4) | (*lo >> 28); |
50 | *lo = (*lo << 4) | (n & 0xf); | |
51 | } | |
52 | ||
53 | return i - 1; | |
54 | } | |
55 | ||
6cd2eef4 | 56 | //by marshmellow (based on existing demod + holiman's refactor) |
57 | //HID Prox demod - FSK RF/50 with preamble of 00011101 (then manchester encoded) | |
58 | //print full HID Prox ID and some bit format details if found | |
59 | int CmdFSKdemodHID(const char *Cmd) | |
7fe9b0b7 | 60 | { |
6cd2eef4 | 61 | //raw fsk demod no manchester decoding no start bit finding just get binary from wave |
62 | uint32_t hi2=0, hi=0, lo=0; | |
63 | ||
64 | uint8_t BitStream[MAX_GRAPH_TRACE_LEN]={0}; | |
65 | size_t BitLen = getFromGraphBuf(BitStream); | |
66 | if (BitLen==0) return 0; | |
67 | //get binary from fsk wave | |
1c70664a | 68 | int waveIdx = 0; |
69 | int idx = HIDdemodFSK(BitStream,&BitLen,&hi2,&hi,&lo, &waveIdx); | |
6cd2eef4 | 70 | if (idx<0){ |
71 | if (g_debugMode){ | |
72 | if (idx==-1){ | |
73 | PrintAndLog("DEBUG: Just Noise Detected"); | |
74 | } else if (idx == -2) { | |
75 | PrintAndLog("DEBUG: Error demoding fsk"); | |
76 | } else if (idx == -3) { | |
77 | PrintAndLog("DEBUG: Preamble not found"); | |
78 | } else if (idx == -4) { | |
79 | PrintAndLog("DEBUG: Error in Manchester data, SIZE: %d", BitLen); | |
80 | } else { | |
81 | PrintAndLog("DEBUG: Error demoding fsk %d", idx); | |
82 | } | |
83 | } | |
7fe9b0b7 | 84 | return 0; |
85 | } | |
6cd2eef4 | 86 | if (hi2==0 && hi==0 && lo==0) { |
87 | if (g_debugMode) PrintAndLog("DEBUG: Error - no values found"); | |
88 | return 0; | |
89 | } | |
1ee624fe | 90 | |
1ee624fe | 91 | if (hi2 != 0) |
b5a5fc4d | 92 | PrintAndLog("HID Prox TAG ID: %x%08x%08x", |
93 | (unsigned int) hi2, (unsigned int) hi, (unsigned int) lo | |
94 | ); | |
1ee624fe | 95 | else |
b5a5fc4d | 96 | PrintAndLog("HID Prox TAG ID: %x%08x", |
97 | (unsigned int) hi, (unsigned int) lo | |
98 | ); | |
99 | ||
100 | hidproxmessage_t packed = initialize_proxmessage_object(hi2, hi, lo); | |
101 | bool ret = HIDTryUnpack(&packed); | |
ab20cc35 | 102 | |
1ee624fe | 103 | if (!ret) { |
104 | PrintAndLog("Invalid or unsupported tag length."); | |
7fe9b0b7 | 105 | } |
6cd2eef4 | 106 | setDemodBuf(BitStream,BitLen,idx); |
1c70664a | 107 | setClockGrid(50, waveIdx + (idx*50)); |
6cd2eef4 | 108 | if (g_debugMode){ |
109 | PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx, BitLen); | |
110 | printDemodBuff(); | |
111 | } | |
112 | return 1; | |
7fe9b0b7 | 113 | } |
6cd2eef4 | 114 | |
115 | int CmdHIDReadFSK(const char *Cmd) | |
7fe9b0b7 | 116 | { |
083ca3de | 117 | int findone=0; |
ab20cc35 | 118 | if(Cmd[0]=='1') findone=1; |
7fe9b0b7 | 119 | UsbCommand c={CMD_HID_DEMOD_FSK}; |
083ca3de | 120 | c.arg[0]=findone; |
7fe9b0b7 | 121 | SendCommand(&c); |
122 | return 0; | |
123 | } | |
124 | ||
125 | int CmdHIDSim(const char *Cmd) | |
38b20f75 | 126 | { |
1ee624fe | 127 | uint32_t hi2 = 0, hi = 0, lo = 0; |
128 | hexstring_to_int96(&hi2, &hi, &lo, Cmd); | |
129 | if (hi >= 0x40 || hi2 != 0) { | |
ab20cc35 MF |
130 | PrintAndLog("This looks like a long tag ID. Use 'lf simfsk' for long tags. Aborting!"); |
131 | return 0; | |
132 | } | |
38b20f75 | 133 | |
ab20cc35 MF |
134 | PrintAndLog("Emulating tag with ID %x%08x", hi, lo); |
135 | PrintAndLog("Press pm3-button to abort simulation"); | |
38b20f75 | 136 | |
ab20cc35 MF |
137 | UsbCommand c = {CMD_HID_SIM_TAG, {hi, lo, 0}}; |
138 | SendCommand(&c); | |
139 | return 0; | |
38b20f75 | 140 | } |
141 | ||
142 | int CmdHIDClone(const char *Cmd) | |
7fe9b0b7 | 143 | { |
54a942b0 | 144 | unsigned int hi2 = 0, hi = 0, lo = 0; |
54a942b0 | 145 | UsbCommand c; |
1ee624fe | 146 | hexstring_to_int96(&hi2, &hi, &lo, Cmd); |
147 | ||
148 | if (hi >= 0x40 || hi2 != 0) { | |
54a942b0 | 149 | PrintAndLog("Cloning tag with long ID %x%08x%08x", hi2, hi, lo); |
54a942b0 | 150 | c.d.asBytes[0] = 1; |
1ee624fe | 151 | } else { |
54a942b0 | 152 | PrintAndLog("Cloning tag with ID %x%08x", hi, lo); |
54a942b0 | 153 | c.d.asBytes[0] = 0; |
7fe9b0b7 | 154 | } |
38b20f75 | 155 | |
156 | c.cmd = CMD_HID_CLONE_TAG; | |
b5a5fc4d | 157 | c.arg[0] = (hi2 & 0x000FFFFF); |
d16d20b1 | 158 | c.arg[1] = hi; |
159 | c.arg[2] = lo; | |
ec09b62d | 160 | |
ec09b62d | 161 | SendCommand(&c); |
162 | return 0; | |
163 | } | |
164 | ||
b5a5fc4d | 165 | int CmdHIDDecode(const char *Cmd){ |
ab20cc35 | 166 | if (strlen(Cmd)<3) { |
b5a5fc4d | 167 | PrintAndLog("Usage: lf hid decode <id>"); |
168 | PrintAndLog(" sample: lf hid decode 2006f623ae"); | |
ab20cc35 MF |
169 | return 0; |
170 | } | |
171 | ||
b5a5fc4d | 172 | uint32_t top = 0, mid = 0, bot = 0; |
173 | hexstring_to_int96(&top, &mid, &bot, Cmd); | |
174 | hidproxmessage_t packed = initialize_proxmessage_object(top, mid, bot); | |
175 | HIDTryUnpack(&packed); | |
176 | return 0; | |
177 | } | |
178 | int CmdHIDEncode(const char *Cmd) { | |
179 | if (strlen(Cmd) == 0) { | |
180 | PrintAndLog("Usage: lf hid encode <format> <facility code (decimal)> <card number (decimal)>"); | |
181 | PrintAndLog(" sample: lf hid encode H10301 123 4567"); | |
182 | return 0; | |
183 | } | |
184 | ||
185 | int formatIndex = -1; | |
186 | if (!strcmp(Cmd, "help") || !strcmp(Cmd, "h") || !strcmp(Cmd, "list") || !strcmp(Cmd, "?")){ | |
187 | HIDListFormats(); | |
188 | return 0; | |
189 | } else { | |
190 | char format[16]; | |
191 | memset(format, 0, sizeof(format)); | |
192 | param_getstr(Cmd, 0, format, sizeof(format)); | |
193 | formatIndex = HIDFindCardFormat(format); | |
194 | if (formatIndex == -1) { | |
195 | HIDListFormats(); | |
196 | return 0; | |
197 | } | |
198 | } | |
ab20cc35 | 199 | |
b5a5fc4d | 200 | hidproxcard_t card; |
201 | memset(&card, 0, sizeof(hidproxcard_t)); | |
202 | card.FacilityCode = param_get32ex(Cmd, 1, 0, 10); | |
203 | card.CardNumber = param_get64ex(Cmd, 2, 0, 10); | |
204 | card.ParitySupported = true; // Try to encode parity if supported. | |
205 | ||
206 | hidproxmessage_t packed; | |
207 | memset(&packed, 0, sizeof(hidproxmessage_t)); | |
208 | if (HIDPack(formatIndex, &card, &packed)){ | |
209 | if (packed.top != 0) { | |
210 | PrintAndLog("HID Prox TAG ID: %x%08x%08x", | |
211 | (unsigned int)packed.top, (unsigned int)packed.mid, (unsigned int)packed.bot); | |
1ee624fe | 212 | } else { |
b5a5fc4d | 213 | PrintAndLog("HID Prox TAG ID: %x%08x", |
214 | (unsigned int)packed.mid, (unsigned int)packed.bot); | |
1ee624fe | 215 | } |
ab20cc35 | 216 | } else { |
b5a5fc4d | 217 | PrintAndLog("The provided data could not be encoded with the selected format."); |
ab20cc35 MF |
218 | } |
219 | return 0; | |
220 | } | |
221 | ||
b5a5fc4d | 222 | int CmdHIDWrite(const char *Cmd) { |
223 | if (strlen(Cmd) == 0) { | |
224 | PrintAndLog("Usage: lf hid write <format> <facility code (decimal)> <card number (decimal)>"); | |
225 | PrintAndLog(" sample: lf hid write H10301 123 4567"); | |
226 | return 0; | |
227 | } | |
ab20cc35 | 228 | |
b5a5fc4d | 229 | int formatIndex = -1; |
230 | if (!strcmp(Cmd, "help") || !strcmp(Cmd, "h") || !strcmp(Cmd, "list") || !strcmp(Cmd, "?")){ | |
231 | HIDListFormats(); | |
ab20cc35 | 232 | return 0; |
b5a5fc4d | 233 | } else { |
234 | char format[16]; | |
235 | memset(format, 0, sizeof(format)); | |
236 | param_getstr(Cmd, 0, format, sizeof(format)); | |
237 | formatIndex = HIDFindCardFormat(format); | |
238 | if (formatIndex == -1) { | |
239 | HIDListFormats(); | |
240 | return 0; | |
241 | } | |
ab20cc35 MF |
242 | } |
243 | ||
b5a5fc4d | 244 | hidproxcard_t card; |
245 | memset(&card, 0, sizeof(hidproxcard_t)); | |
246 | card.FacilityCode = param_get32ex(Cmd, 1, 0, 10); | |
247 | card.CardNumber = param_get64ex(Cmd, 2, 0, 10); | |
248 | card.ParitySupported = true; // Try to encode parity if supported. | |
249 | ||
250 | hidproxmessage_t packed; | |
251 | memset(&packed, 0, sizeof(hidproxmessage_t)); | |
252 | if (HIDPack(formatIndex, &card, &packed)){ | |
253 | UsbCommand c; | |
254 | if (packed.top != 0) { | |
255 | PrintAndLog("HID Prox TAG ID: %x%08x%08x", | |
256 | (unsigned int)packed.top, (unsigned int)packed.mid, (unsigned int)packed.bot); | |
257 | c.d.asBytes[0] = 1; | |
258 | } else { | |
259 | PrintAndLog("HID Prox TAG ID: %x%08x", | |
260 | (unsigned int)packed.mid, (unsigned int)packed.bot); | |
261 | c.d.asBytes[0] = 0; | |
262 | } | |
263 | ||
264 | c.cmd = CMD_HID_CLONE_TAG; | |
265 | c.arg[0] = (packed.top & 0x000FFFFF); | |
266 | c.arg[1] = packed.mid; | |
267 | c.arg[2] = packed.bot; | |
268 | SendCommand(&c); | |
ab20cc35 | 269 | |
1ee624fe | 270 | } else { |
b5a5fc4d | 271 | PrintAndLog("The provided data could not be encoded with the selected format."); |
ab20cc35 MF |
272 | } |
273 | return 0; | |
274 | } | |
275 | ||
b5a5fc4d | 276 | static int CmdHelp(const char *Cmd); // define this now so the below won't error out. |
7fe9b0b7 | 277 | static command_t CommandTable[] = |
278 | { | |
279 | {"help", CmdHelp, 1, "This help"}, | |
6cd2eef4 | 280 | {"demod", CmdFSKdemodHID, 1, "Demodulate HID Prox from GraphBuffer"}, |
281 | {"read", CmdHIDReadFSK, 0, "['1'] Realtime HID FSK Read from antenna (option '1' for one tag only)"}, | |
083ca3de | 282 | {"sim", CmdHIDSim, 0, "<ID> -- HID tag simulator"}, |
1ee624fe | 283 | {"clone", CmdHIDClone, 0, "<ID> -- Clone HID to T55x7 (tag must be in antenna)"}, |
b5a5fc4d | 284 | {"decode", CmdHIDDecode, 1, "<ID> -- Try to decode an HID tag and show its contents"}, |
285 | {"encode", CmdHIDEncode, 1, "<format> <fc> <num> -- Encode an HID ID with the specified format, facility code and card number"}, | |
286 | {"write", CmdHIDWrite, 0, "<format> <fc> <num> -- Encode and write to a T55x7 tag (tag must be in antenna)"}, | |
7fe9b0b7 | 287 | {NULL, NULL, 0, NULL} |
288 | }; | |
289 | ||
290 | int CmdLFHID(const char *Cmd) | |
291 | { | |
292 | CmdsParse(CommandTable, Cmd); | |
293 | return 0; | |
294 | } | |
295 | ||
296 | int CmdHelp(const char *Cmd) | |
297 | { | |
298 | CmdsHelp(CommandTable); | |
299 | return 0; | |
300 | } |