]> git.zerfleddert.de Git - proxmark3-svn/blob - client/cmdlfhid.c
ADD: added the "llu" macro shortcut as format specifier.
[proxmark3-svn] / client / cmdlfhid.c
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
11 #include <stdio.h>
12 #include <string.h>
13 #include "proxmark3.h"
14 #include "ui.h"
15 #include "graph.h"
16 #include "cmdparser.h"
17 #include "cmdlfhid.h"
18 #include "util.h"
19 #include "cmdmain.h"
20 #include "sleep.h"
21
22 static int CmdHelp(const char *Cmd);
23
24 int usage_lf_hid_wiegand(void){
25 PrintAndLog("Usage: lf hid wiegand [h] [oem] [FacilityCode] [cardnumber]");
26 PrintAndLog("This command converts FC/Cardnum to wiegand code");
27 PrintAndLog("Options:");
28 PrintAndLog(" h - This help");
29 PrintAndLog(" oem - Oem number");
30 PrintAndLog(" facilitynum - Facility number");
31 PrintAndLog(" cardnum - Card number");
32 PrintAndLog("Examples:");
33 PrintAndLog(" lf hid wiegand 0 101 2001");
34 return 0;
35 }
36 int usage_lf_hid_brute(void){
37 PrintAndLog("Enables bruteforce of HID readers with specified facility-code.");
38 PrintAndLog("Different formatlength is supported");
39 PrintAndLog("This is a incremental attack against reader.");
40 PrintAndLog("");
41 PrintAndLog("Usage: lf hid brute <formatlength> <Facility-Code>");
42 PrintAndLog("Options :");
43 PrintAndLog(" <formatlength> : 26|33|34|35|37|40|44|84 ");
44 PrintAndLog(" <Facility-Code> : 8-bit value HID facility code");
45 PrintAndLog("");
46 PrintAndLog("Sample : lf hid brute 26 224");
47 return 0;
48 }
49 /*
50 int CmdHIDDemod(const char *Cmd)
51 {
52 if (GraphTraceLen < 4800) {
53 PrintAndLog("too short; need at least 4800 samples");
54 return 0;
55 }
56
57 GraphTraceLen = 4800;
58 for (int i = 0; i < GraphTraceLen; ++i) {
59 if (GraphBuffer[i] < 0) {
60 GraphBuffer[i] = 0;
61 } else {
62 GraphBuffer[i] = 1;
63 }
64 }
65 RepaintGraphWindow();
66 return 0;
67 }
68 */
69 int CmdHIDDemodFSK(const char *Cmd) {
70 int findone = ( Cmd[0] == '1' ) ? 1 : 0;
71 UsbCommand c = {CMD_HID_DEMOD_FSK, {findone, 0 , 0}};
72 clearCommandBuffer();
73 SendCommand(&c);
74 return 0;
75 }
76
77 int CmdHIDSim(const char *Cmd) {
78 unsigned int hi = 0, lo = 0;
79 int n = 0, i = 0;
80
81 while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
82 hi = (hi << 4) | (lo >> 28);
83 lo = (lo << 4) | (n & 0xf);
84 }
85
86 PrintAndLog("Emulating tag with ID %x%16x", hi, lo);
87 PrintAndLog("Press pm3-button to abort simulation");
88
89 UsbCommand c = {CMD_HID_SIM_TAG, {hi, lo, 0}};
90 clearCommandBuffer();
91 SendCommand(&c);
92 return 0;
93 }
94
95 int CmdHIDClone(const char *Cmd) {
96 unsigned int hi2 = 0, hi = 0, lo = 0;
97 int n = 0, i = 0;
98 UsbCommand c;
99
100 if (strchr(Cmd,'l') != 0) {
101 while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
102 hi2 = (hi2 << 4) | (hi >> 28);
103 hi = (hi << 4) | (lo >> 28);
104 lo = (lo << 4) | (n & 0xf);
105 }
106
107 PrintAndLog("Cloning tag with long ID %x%08x%08x", hi2, hi, lo);
108
109 c.d.asBytes[0] = 1;
110 } else {
111 while (sscanf(&Cmd[i++], "%1x", &n ) == 1) {
112 hi = (hi << 4) | (lo >> 28);
113 lo = (lo << 4) | (n & 0xf);
114 }
115
116 PrintAndLog("Cloning tag with ID %x%08x", hi, lo);
117
118 hi2 = 0;
119 c.d.asBytes[0] = 0;
120 }
121
122 c.cmd = CMD_HID_CLONE_TAG;
123 c.arg[0] = hi2;
124 c.arg[1] = hi;
125 c.arg[2] = lo;
126
127 clearCommandBuffer();
128 SendCommand(&c);
129 return 0;
130 }
131
132 static void getParity26(uint32_t *hi, uint32_t *lo){
133 uint32_t result = 0;
134 int i;
135 // even parity
136 for (i = 24;i >= 13;i--)
137 result ^= (*lo >> i) & 1;
138 // even parity 26th bit
139 *lo |= result << 25;
140
141 // odd parity
142 result = 0;
143 for (i = 12;i >= 1;i--)
144 result ^= (*lo >> i) & 1;
145 *lo |= !result;
146 }
147 static void getParity33(uint32_t *hi, uint32_t *lo){
148
149 }
150 static void getParity34(uint32_t *hi, uint32_t *lo){
151 uint32_t result = 0;
152 int i;
153
154 // even parity
155 for (i = 7;i >= 0;i--)
156 result ^= (*hi >> i) & i;
157 for (i = 31;i >= 24;i--)
158 result ^= (*lo >> i) & 1;
159
160 *hi |= result << 2;
161
162 // odd parity bit
163 result = 0;
164 for (i = 23;i >= 1;i--)
165 result ^= (*lo >> i) & 1;
166
167 *lo |= !result;
168 }
169 static void getParity35(uint32_t *hi, uint32_t *lo){
170 }
171 static void getParity37S(uint32_t *hi,uint32_t *lo){
172 uint32_t result = 0;
173 int i;
174
175 // even parity
176 for (i = 4; i >= 0; i--)
177 result ^= (*hi >> i) & 1;
178
179 for (i = 31; i >= 20; i--)
180 result ^= (*lo >> i) & 1;
181
182 *hi |= result;
183
184 // odd parity
185 result = 0;
186 for (i = 19; i >= 1; i--)
187 result ^= (*lo >> i) & 1;
188
189 *lo |= result;
190 }
191 static void getParity37H(uint32_t *hi, uint32_t *lo){
192 uint32_t result = 0;
193 int i;
194
195 // even parity
196 for (i = 4;i >= 0;i--)
197 result ^= (*hi >> i) & 1;
198 for (i = 31;i >= 20;i--)
199 result ^= (*lo >> i) & 1;
200 *hi |= result << 4;
201
202 // odd parity
203 result = 0;
204 for (i = 19;i >= 1;i--)
205 result ^= (*lo >> i) & 1;
206 *lo |= result;
207 }
208
209 static void calc26(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
210 *lo = ((cardno & 0xFFFF) << 1) | ((fc & 0xFF) << 17) | (1 << 26);
211 *hi = (1 << 5);
212 }
213 static void calc33(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
214
215 }
216 static void calc34(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
217 // put card number first bit 1 .. 20 //
218 *lo = ((cardno & 0X000F7FFF) << 1) | ((fc & 0XFFFF) << 17);
219 // set bit format for less than 37 bit format
220 *hi = (1 << 5) | (fc >> 15);
221 }
222 static void calc35(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
223 *lo = ((cardno & 0xFFFFF) << 1) | fc << 21;
224 *hi = (1 << 5) | ((fc >> 11) & 1);
225 }
226 static void calc37S(uint16_t fc, uint32_t cardno, uint32_t *hi, uint32_t *lo){
227 // FC 2 - 17 - 16 bit
228 // cardno 18 - 36 - 19 bit
229 // Even P1 1 - 19
230 // Odd P37 19 - 36
231
232 fc = fc & 0xFFFF;
233 *lo = ((fc << 20) | (cardno & 0x7FFFF) << 1);
234 *hi = (fc >> 12);
235 }
236 static void calc37H(uint64_t cardno, uint32_t *hi, uint32_t *lo){
237 // SC NONE
238 // cardno 1-35 34 bits
239 // Even Parity 0th bit 1-18
240 // Odd Parity 36th bit 19-35
241 cardno = (cardno & 0x00000003FFFFFFFF);
242 *lo = (cardno << 1);
243 *hi = (cardno >> 31);
244 }
245 static void calc40(uint64_t cardno, uint32_t *hi, uint32_t *lo){
246 cardno = (cardno & 0xFFFFFFFFFF);
247 *lo = ((cardno & 0xFFFFFFFF) << 1 );
248 *hi = (cardno >> 31);
249 }
250
251 static void calcWiegand(uint8_t fmtlen, uint16_t fc, uint64_t cardno, uint32_t *hi, uint32_t *lo){
252
253 uint32_t cn = (cardno & 0xFFFFFFFF);
254 switch ( fmtlen ) {
255 case 26 : {
256 calc26(fc, cn, hi, lo);
257 getParity26(hi, lo);
258 break;
259 }
260 case 33 : {
261 calc33(fc, cn, hi, lo);
262 getParity33(hi, lo);
263 break;
264 }
265 case 34 : {
266 calc34(fc, cn, hi, lo);
267 getParity34(hi, lo);
268 break;
269 }
270 case 35 : {
271 calc35(fc, cn, hi, lo);
272 getParity35(hi, lo);
273 break;
274 }
275 case 37 : {
276 calc37S(fc, cn, hi, lo);
277 getParity37S(hi, lo);
278 break;
279 }
280 case 38 : {
281 calc37H(cn, hi, lo);
282 getParity37H(hi, lo);
283 break;
284 }
285 case 40 : calc40(cardno, hi, lo); break;
286 case 44 : { break; }
287 case 84 : { break; }
288 }
289 }
290
291 int CmdHIDWiegand(const char *Cmd) {
292 uint32_t oem;
293 uint32_t fc, lo = 0, hi = 0;
294 uint64_t cardnum = 0;
295
296 uint8_t ctmp = param_getchar(Cmd, 0);
297 if ( strlen(Cmd) == 0 || strlen(Cmd) < 3 || ctmp == 'H' || ctmp == 'h' ) return usage_lf_hid_wiegand();
298
299 oem = param_get8(Cmd, 0);
300 fc = param_get32ex(Cmd, 1, 0, 10);
301 cardnum = param_get64ex(Cmd, 2, 0, 10);
302
303 uint8_t ftmlen[] = {26,33,34,35,37,38,40};
304 for (uint8_t i = 0; i < sizeof(ftmlen); i++){
305 calcWiegand( ftmlen[i], fc, cardnum, &hi, &lo);
306 PrintAndLog("HID %d bit | FC: %d CN: %llu | Wiegand Code: %08X%08X", ftmlen[i], fc, cardnum, hi, lo);
307 }
308 return 0;
309 }
310
311 int CmdHIDBrute(const char *Cmd){
312
313 bool error = TRUE;
314 uint8_t fc = 0, fmtlen = 0;
315 uint32_t hi = 0, lo = 0;
316
317 UsbCommand c = {CMD_HID_SIM_TAG, {0, 0, 0}};
318
319 char cmdp = param_getchar(Cmd, 0);
320 if (strlen(Cmd) > 2 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_hid_brute();
321
322 fmtlen = param_get8(Cmd, 0);
323 uint8_t ftms[] = {26,33,34,35,37};
324 for ( uint8_t i = 0; i < sizeof(ftms); i++){
325 if ( ftms[i] == fmtlen ) {
326 error = FALSE;
327 }
328 }
329
330 if ( error ) return usage_lf_hid_brute();
331
332 fc = param_get8(Cmd, 1);
333 if ( fc == 0) return usage_lf_hid_brute();
334
335 PrintAndLog("Bruteforceing HID Reader");
336 PrintAndLog("Press pm3-button to abort simulation or run another command");
337
338 for ( uint16_t cn = 1; cn < 0xFFFF; ++cn){
339 if (ukbhit()) {
340 PrintAndLog("aborted via keyboard!");
341 c.cmd = CMD_PING;
342 c.arg[0] = 0x00;
343 c.arg[1] = 0x00;
344 c.arg[2] = 0x00;
345 clearCommandBuffer();
346 SendCommand(&c);
347 return 1;
348 }
349
350 calcWiegand( fmtlen, fc, cn, &hi, &lo);
351
352 c.arg[0] = hi;
353 c.arg[1] = lo;
354 clearCommandBuffer();
355 SendCommand(&c);
356
357 PrintAndLog("Trying FC: %u; CN: %u", fc, cn);
358 // pause
359 sleep(1);
360 }
361 return 0;
362 }
363
364 static command_t CommandTable[] = {
365 {"help", CmdHelp, 1, "This help"},
366 //{"demod", CmdHIDDemod, 1, "Demodulate HID Prox Card II (not optimal)"},
367 {"fskdemod", CmdHIDDemodFSK, 0, "['1'] Realtime HID FSK demodulator (option '1' for one tag only)"},
368 {"sim", CmdHIDSim, 0, "<ID> -- HID tag simulator"},
369 {"clone", CmdHIDClone, 0, "<ID> ['l'] -- Clone HID to T55x7 (tag must be in antenna)(option 'l' for 84bit ID)"},
370 {"wiegand", CmdHIDWiegand, 1, "<oem> <fmtlen> <fc> <cardnum> -- convert facilitycode, cardnumber to Wiegand code"},
371 {NULL, NULL, 0, NULL}
372 };
373
374 int CmdLFHID(const char *Cmd) {
375 CmdsParse(CommandTable, Cmd);
376 return 0;
377 }
378
379 int CmdHelp(const char *Cmd) {
380 CmdsHelp(CommandTable);
381 return 0;
382 }
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