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db25599d | 1 | //----------------------------------------------------------------------------- |
2 | // Authored by Craig Young <cyoung@tripwire.com> based on cmdlfhid.c structure | |
3 | // | |
4 | // cmdlfhid.c is Copyright (C) 2010 iZsh <izsh at fail0verflow.com> | |
5 | // | |
6 | // This code is licensed to you under the terms of the GNU GPL, version 2 or, | |
7 | // at your option, any later version. See the LICENSE.txt file for the text of | |
8 | // the license. | |
9 | //----------------------------------------------------------------------------- | |
10 | // Low frequency AWID26 commands | |
11 | //----------------------------------------------------------------------------- | |
12 | ||
13 | #include <stdio.h> // sscanf | |
14 | #include "proxmark3.h" // Definitions, USB controls, etc | |
15 | #include "ui.h" // PrintAndLog | |
16 | #include "cmdparser.h" // CmdsParse, CmdsHelp | |
17 | #include "cmdlfawid.h" // AWID function declarations | |
18 | #include "lfdemod.h" // parityTest | |
a126332a | 19 | #include "util.h" // weigandparity |
20 | #include "protocols.h" // for T55xx config register definitions | |
7838f4be | 21 | #include "cmdmain.h" |
978920b9 | 22 | #include "sleep.h" |
508b37ba | 23 | |
db25599d | 24 | static int CmdHelp(const char *Cmd); |
25 | ||
db25599d | 26 | int usage_lf_awid_fskdemod(void) { |
8fd9bfb0 | 27 | PrintAndLog("Enables AWID compatible reader mode printing details of scanned AWID26 or AWID50 tags."); |
a126332a | 28 | PrintAndLog("By default, values are printed and logged until the button is pressed or another USB command is issued."); |
8fd9bfb0 | 29 | PrintAndLog("If the [1] option is provided, reader mode is exited after reading a single AWID card."); |
a126332a | 30 | PrintAndLog(""); |
890ae3dd | 31 | PrintAndLog("Usage: lf awid fskdemod [h] [1]"); |
a126332a | 32 | PrintAndLog("Options :"); |
890ae3dd | 33 | PrintAndLog(" h : This help"); |
8fd9bfb0 | 34 | PrintAndLog(" 1 : (optional) stop after reading a single card"); |
a126332a | 35 | PrintAndLog(""); |
8fd9bfb0 | 36 | PrintAndLog("Samples"); |
37 | PrintAndLog(" lf awid fskdemod"); | |
38 | PrintAndLog(" lf awid fskdemod 1"); | |
a126332a | 39 | return 0; |
db25599d | 40 | } |
41 | ||
42 | int usage_lf_awid_sim(void) { | |
8fd9bfb0 | 43 | PrintAndLog("Enables simulation of AWID card with specified facility-code and card number."); |
a126332a | 44 | PrintAndLog("Simulation runs until the button is pressed or another USB command is issued."); |
a126332a | 45 | PrintAndLog(""); |
890ae3dd | 46 | PrintAndLog("Usage: lf awid sim [h] <format> <facility-code> <card-number>"); |
a126332a | 47 | PrintAndLog("Options :"); |
890ae3dd | 48 | PrintAndLog(" h : This help"); |
49 | PrintAndLog(" <format> : format length 26|50"); | |
8fd9bfb0 | 50 | PrintAndLog(" <facility-code> : 8|16bit value facility code"); |
890ae3dd | 51 | PrintAndLog(" <card number> : 16|32-bit value card number"); |
a126332a | 52 | PrintAndLog(""); |
8fd9bfb0 | 53 | PrintAndLog("Samples"); |
54 | PrintAndLog(" lf awid sim 26 224 1337"); | |
55 | PrintAndLog(" lf awid sim 50 2001 13371337"); | |
a126332a | 56 | return 0; |
db25599d | 57 | } |
58 | ||
59 | int usage_lf_awid_clone(void) { | |
8fd9bfb0 | 60 | PrintAndLog("Enables cloning of AWID card with specified facility-code and card number onto T55x7."); |
a126332a | 61 | PrintAndLog("The T55x7 must be on the antenna when issuing this command. T55x7 blocks are calculated and printed in the process."); |
a126332a | 62 | PrintAndLog(""); |
890ae3dd | 63 | PrintAndLog("Usage: lf awid clone [h] <format> <facility-code> <card-number> [Q5]"); |
a126332a | 64 | PrintAndLog("Options :"); |
890ae3dd | 65 | PrintAndLog(" h : This help"); |
66 | PrintAndLog(" <format> : format length 26|50"); | |
8fd9bfb0 | 67 | PrintAndLog(" <facility-code> : 8|16bit value facility code"); |
890ae3dd | 68 | PrintAndLog(" <card number> : 16|32-bit value card number"); |
69 | PrintAndLog(" Q5 : optional - clone to Q5 (T5555) instead of T55x7 chip"); | |
a126332a | 70 | PrintAndLog(""); |
8fd9bfb0 | 71 | PrintAndLog("Samples"); |
72 | PrintAndLog(" lf awid clone 26 224 1337"); | |
73 | PrintAndLog(" lf awid clone 50 2001 13371337"); | |
a126332a | 74 | return 0; |
db25599d | 75 | } |
76 | ||
508b37ba | 77 | int usage_lf_awid_brute(void){ |
8fd9bfb0 | 78 | PrintAndLog("Enables bruteforce of AWID reader with specified facility-code."); |
978920b9 | 79 | PrintAndLog("This is a incremental attack against reader."); |
508b37ba | 80 | PrintAndLog(""); |
890ae3dd | 81 | PrintAndLog("Usage: lf awid brute [h] <format> <facility-code>"); |
508b37ba | 82 | PrintAndLog("Options :"); |
890ae3dd | 83 | PrintAndLog(" h : This help"); |
84 | PrintAndLog(" <format> : format length 26|50"); | |
8fd9bfb0 | 85 | PrintAndLog(" <facility-code> : 8|16bit value facility code"); |
508b37ba | 86 | PrintAndLog(""); |
8fd9bfb0 | 87 | PrintAndLog("Samples"); |
88 | PrintAndLog(" lf awid brute 26 224"); | |
89 | PrintAndLog(" lf awid brute 50 2001"); | |
508b37ba | 90 | return 0; |
91 | } | |
92 | ||
52f2df61 | 93 | int CmdAWIDDemodFSK(const char *Cmd) { |
a126332a | 94 | int findone = 0; |
95 | if (Cmd[0] == 'h' || Cmd[0] == 'H') return usage_lf_awid_fskdemod(); | |
96 | if (Cmd[0] == '1') findone = 1; | |
97 | ||
98 | UsbCommand c = {CMD_AWID_DEMOD_FSK, {findone, 0, 0}}; | |
99 | clearCommandBuffer(); | |
100 | SendCommand(&c); | |
101 | return 0; | |
db25599d | 102 | } |
103 | ||
a126332a | 104 | //refactored by marshmellow |
8fd9bfb0 | 105 | int getAWIDBits(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint8_t *bits) { |
106 | ||
107 | // the return bits, preamble 0000 0001 | |
108 | bits[7] = 1; | |
109 | ||
a126332a | 110 | uint8_t pre[66]; |
111 | memset(pre, 0, sizeof(pre)); | |
52f2df61 | 112 | |
8fd9bfb0 | 113 | // add formatlength |
114 | num_to_bytebits(fmtlen, 8, pre); | |
115 | ||
116 | // add facilitycode, cardnumber and wiegand parity bits | |
117 | if ( fmtlen == 26 ) { | |
118 | uint8_t wiegand[24]; | |
119 | num_to_bytebits(fc, 8, wiegand); | |
120 | num_to_bytebits(cn, 16, wiegand+8); | |
121 | wiegand_add_parity(pre+8, wiegand, sizeof(wiegand)); | |
122 | } else { | |
123 | uint8_t wiegand[48]; | |
124 | num_to_bytebits(fc, 16, wiegand); | |
125 | num_to_bytebits(cn, 32, wiegand+16); | |
126 | wiegand_add_parity(pre+8, wiegand, sizeof(wiegand)); | |
127 | } | |
128 | ||
129 | // add AWID 4bit parity | |
130 | size_t bitLen = addParity(pre, bits+8, 66, 4, 1); | |
fcb1cdba | 131 | |
a126332a | 132 | if (bitLen != 88) return 0; |
52f2df61 | 133 | return 1; |
db25599d | 134 | } |
135 | ||
a126332a | 136 | int CmdAWIDSim(const char *Cmd) { |
8fd9bfb0 | 137 | uint32_t fc = 0, cn = 0; |
138 | uint8_t fmtlen = 0; | |
a126332a | 139 | uint8_t bits[96]; |
140 | uint8_t *bs = bits; | |
141 | size_t size = sizeof(bits); | |
fcb1cdba | 142 | memset(bs, 0x00, size); |
52f2df61 | 143 | |
fcb1cdba | 144 | uint64_t arg1 = ( 10 << 8 ) + 8; // fcHigh = 10, fcLow = 8 |
52f2df61 | 145 | uint64_t arg2 = 50; // clk RF/50 invert=0 |
146 | ||
8fd9bfb0 | 147 | char cmdp = param_getchar(Cmd, 0); |
148 | if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_awid_sim(); | |
52f2df61 | 149 | |
8fd9bfb0 | 150 | fmtlen = param_get8(Cmd, 0); |
151 | fc = param_get32ex(Cmd, 1, 0, 10); | |
152 | cn = param_get32ex(Cmd, 2, 0, 10); | |
153 | if ( !fc || !cn) return usage_lf_awid_sim(); | |
52f2df61 | 154 | |
8fd9bfb0 | 155 | switch(fmtlen) { |
156 | case 26: | |
157 | if ((fc & 0xFF) != fc) { | |
158 | fc &= 0xFF; | |
159 | PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc); | |
160 | } | |
161 | ||
162 | if ((cn & 0xFFFF) != cn) { | |
163 | cn &= 0xFFFF; | |
164 | PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn); | |
165 | } | |
166 | break; | |
167 | case 50: | |
168 | if ((fc & 0xFFFF) != fc) { | |
169 | fc &= 0xFFFF; | |
170 | PrintAndLog("Facility-Code Truncated to 16-bits (AWID50): %u", fc); | |
171 | } | |
172 | break; | |
173 | default: break; | |
174 | } | |
175 | ||
176 | PrintAndLog("Emulating AWID %u -- FC: %u; CN: %u\n", fmtlen, fc, cn); | |
52f2df61 | 177 | PrintAndLog("Press pm3-button to abort simulation or run another command"); |
178 | ||
8fd9bfb0 | 179 | if (!getAWIDBits(fmtlen, fc, cn, bs)) { |
52f2df61 | 180 | PrintAndLog("Error with tag bitstream generation."); |
181 | return 1; | |
182 | } | |
183 | // AWID uses: fcHigh: 10, fcLow: 8, clk: 50, invert: 0 | |
52f2df61 | 184 | // arg1 --- fcHigh<<8 + fcLow |
185 | // arg2 --- Inversion and clk setting | |
186 | // 96 --- Bitstream length: 96-bits == 12 bytes | |
a126332a | 187 | UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}}; |
188 | memcpy(c.d.asBytes, bs, size); | |
52f2df61 | 189 | clearCommandBuffer(); |
190 | SendCommand(&c); | |
191 | return 0; | |
db25599d | 192 | } |
193 | ||
a126332a | 194 | int CmdAWIDClone(const char *Cmd) { |
195 | uint32_t blocks[4] = {T55x7_MODULATION_FSK2a | T55x7_BITRATE_RF_50 | 3<<T55x7_MAXBLOCK_SHIFT, 0, 0, 0}; | |
8fd9bfb0 | 196 | uint32_t fc = 0, cn = 0; |
197 | uint8_t fmtlen = 0; | |
a126332a | 198 | uint8_t bits[96]; |
52f2df61 | 199 | uint8_t *bs=bits; |
a126332a | 200 | memset(bs,0,sizeof(bits)); |
52f2df61 | 201 | |
8fd9bfb0 | 202 | char cmdp = param_getchar(Cmd, 0); |
203 | if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_awid_clone(); | |
f3cfe428 | 204 | |
8fd9bfb0 | 205 | fmtlen = param_get8(Cmd, 0); |
206 | fc = param_get32ex(Cmd, 1, 0, 10); | |
207 | cn = param_get32ex(Cmd, 2, 0, 10); | |
a126332a | 208 | |
8fd9bfb0 | 209 | if ( !fc || !cn) return usage_lf_awid_clone(); |
210 | ||
211 | switch(fmtlen) { | |
212 | case 50: | |
213 | if ((fc & 0xFFFF) != fc) { | |
214 | fc &= 0xFFFF; | |
215 | PrintAndLog("Facility-Code Truncated to 16-bits (AWID50): %u", fc); | |
216 | } | |
217 | break; | |
218 | default: | |
219 | fmtlen = 26; | |
220 | if ((fc & 0xFF) != fc) { | |
221 | fc &= 0xFF; | |
222 | PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc); | |
223 | } | |
f3cfe428 | 224 | |
8fd9bfb0 | 225 | if ((cn & 0xFFFF) != cn) { |
226 | cn &= 0xFFFF; | |
227 | PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn); | |
228 | } | |
229 | break; | |
f3cfe428 | 230 | } |
52f2df61 | 231 | |
8fd9bfb0 | 232 | if (param_getchar(Cmd, 4) == 'Q' || param_getchar(Cmd, 4) == 'q') |
890ae3dd | 233 | //t5555 (Q5) BITRATE = (RF-2)/2 (iceman) |
8fd9bfb0 | 234 | blocks[0] = T5555_MODULATION_FSK2 | T5555_INVERT_OUTPUT | 50<<T5555_BITRATE_SHIFT | 3<<T5555_MAXBLOCK_SHIFT; |
235 | ||
236 | if ( !getAWIDBits(fmtlen, fc, cn, bs)) { | |
52f2df61 | 237 | PrintAndLog("Error with tag bitstream generation."); |
238 | return 1; | |
239 | } | |
240 | ||
a126332a | 241 | blocks[1] = bytebits_to_byte(bs,32); |
242 | blocks[2] = bytebits_to_byte(bs+32,32); | |
243 | blocks[3] = bytebits_to_byte(bs+64,32); | |
52f2df61 | 244 | |
8fd9bfb0 | 245 | PrintAndLog("Preparing to clone AWID %u to T55x7 with FC: %u, CN: %u", fmtlen, fc, cn); |
52f2df61 | 246 | PrintAndLog("Blk | Data "); |
247 | PrintAndLog("----+------------"); | |
248 | PrintAndLog(" 00 | 0x%08x", blocks[0]); | |
249 | PrintAndLog(" 01 | 0x%08x", blocks[1]); | |
250 | PrintAndLog(" 02 | 0x%08x", blocks[2]); | |
251 | PrintAndLog(" 03 | 0x%08x", blocks[3]); | |
252 | ||
253 | UsbCommand resp; | |
254 | UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}}; | |
f3cfe428 | 255 | |
a126332a | 256 | for (uint8_t i=0; i<4; i++) { |
52f2df61 | 257 | c.arg[0] = blocks[i]; |
258 | c.arg[1] = i; | |
259 | clearCommandBuffer(); | |
260 | SendCommand(&c); | |
26922aef | 261 | if (!WaitForResponseTimeout(CMD_ACK, &resp, 1500)){ |
52f2df61 | 262 | PrintAndLog("Error occurred, device did not respond during write operation."); |
263 | return -1; | |
f3cfe428 | 264 | } |
265 | } | |
266 | return 0; | |
db25599d | 267 | } |
268 | ||
508b37ba | 269 | int CmdAWIDBrute(const char *Cmd){ |
270 | ||
8fd9bfb0 | 271 | uint32_t fc = 0x00; |
272 | uint8_t fmtlen = 0; | |
508b37ba | 273 | uint8_t bits[96]; |
274 | uint8_t *bs = bits; | |
275 | size_t size = sizeof(bits); | |
276 | memset(bs, 0x00, size); | |
277 | ||
278 | char cmdp = param_getchar(Cmd, 0); | |
8fd9bfb0 | 279 | if (strlen(Cmd) > 4 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_awid_brute(); |
508b37ba | 280 | |
8fd9bfb0 | 281 | fmtlen = param_get8(Cmd, 0); |
282 | fc = param_get32ex(Cmd, 1, 0, 10); | |
283 | if ( !fc ) return usage_lf_awid_brute(); | |
284 | ||
285 | switch(fmtlen) { | |
286 | case 50: | |
287 | if ((fc & 0xFFFF) != fc) { | |
288 | fc &= 0xFFFF; | |
289 | PrintAndLog("Facility-Code Truncated to 16-bits (AWID50): %u", fc); | |
290 | } | |
291 | break; | |
292 | default: | |
293 | if ((fc & 0xFF) != fc) { | |
294 | fc &= 0xFF; | |
295 | PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc); | |
296 | } | |
297 | break; | |
298 | } | |
508b37ba | 299 | |
8fd9bfb0 | 300 | PrintAndLog("Bruteforceing AWID %d Reader", fmtlen); |
508b37ba | 301 | PrintAndLog("Press pm3-button to abort simulation or run another command"); |
302 | ||
303 | uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8 | |
304 | uint64_t arg2 = 50; // clk RF/50 invert=0 | |
305 | UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}}; | |
306 | ||
307 | for ( uint16_t cn = 1; cn < 0xFFFF; ++cn){ | |
308 | if (ukbhit()) { | |
309 | PrintAndLog("aborted via keyboard!"); | |
310 | c.cmd = CMD_PING; | |
311 | c.arg[0] = 0x00; | |
312 | c.arg[1] = 0x00; | |
313 | c.arg[2] = 0x00; | |
314 | clearCommandBuffer(); | |
315 | SendCommand(&c); | |
316 | return 1; | |
317 | } | |
318 | ||
8fd9bfb0 | 319 | (void)getAWIDBits(fmtlen, fc, cn, bs); |
508b37ba | 320 | memcpy(c.d.asBytes, bs, size); |
321 | clearCommandBuffer(); | |
322 | SendCommand(&c); | |
323 | ||
324 | PrintAndLog("Trying FC: %u; CN: %u", fc, cn); | |
325 | // pause | |
326 | sleep(1); | |
327 | } | |
328 | return 0; | |
329 | } | |
330 | ||
a126332a | 331 | static command_t CommandTable[] = { |
f3cfe428 | 332 | {"help", CmdHelp, 1, "This help"}, |
333 | {"fskdemod", CmdAWIDDemodFSK, 0, "['1'] Realtime AWID FSK demodulator (option '1' for one tag only)"}, | |
334 | {"sim", CmdAWIDSim, 0, "<Facility-Code> <Card Number> -- AWID tag simulator"}, | |
a126332a | 335 | {"clone", CmdAWIDClone, 0, "<Facility-Code> <Card Number> <Q5> -- Clone AWID to T55x7"}, |
508b37ba | 336 | {"brute", CmdAWIDBrute, 0, "<Facility-Code> -- bruteforce card number"}, |
f3cfe428 | 337 | {NULL, NULL, 0, NULL} |
db25599d | 338 | }; |
339 | ||
a126332a | 340 | int CmdLFAWID(const char *Cmd) { |
4c36581b | 341 | clearCommandBuffer(); |
f3cfe428 | 342 | CmdsParse(CommandTable, Cmd); |
343 | return 0; | |
db25599d | 344 | } |
345 | ||
a126332a | 346 | int CmdHelp(const char *Cmd) { |
f3cfe428 | 347 | CmdsHelp(CommandTable); |
348 | return 0; | |
db25599d | 349 | } |