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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" |
508b37ba | 22 | #include "sleep.h" |
23 | ||
db25599d | 24 | static int CmdHelp(const char *Cmd); |
25 | ||
db25599d | 26 | int usage_lf_awid_fskdemod(void) { |
a126332a | 27 | PrintAndLog("Enables AWID26 compatible reader mode printing details of scanned AWID26 tags."); |
28 | PrintAndLog("By default, values are printed and logged until the button is pressed or another USB command is issued."); | |
29 | PrintAndLog("If the ['1'] option is provided, reader mode is exited after reading a single AWID26 card."); | |
30 | PrintAndLog(""); | |
31 | PrintAndLog("Usage: lf awid fskdemod ['1']"); | |
32 | PrintAndLog("Options :"); | |
33 | PrintAndLog(" 1 : (optional) stop after reading a single card"); | |
34 | PrintAndLog(""); | |
35 | PrintAndLog("Samples : lf awid fskdemod"); | |
36 | PrintAndLog(" : lf awid fskdemod 1"); | |
37 | return 0; | |
db25599d | 38 | } |
39 | ||
40 | int usage_lf_awid_sim(void) { | |
a126332a | 41 | PrintAndLog("Enables simulation of AWID26 card with specified facility-code and card number."); |
42 | PrintAndLog("Simulation runs until the button is pressed or another USB command is issued."); | |
43 | PrintAndLog("Per AWID26 format, the facility-code is 8-bit and the card number is 16-bit. Larger values are truncated."); | |
44 | PrintAndLog(""); | |
45 | PrintAndLog("Usage: lf awid sim <Facility-Code> <Card-Number>"); | |
46 | PrintAndLog("Options :"); | |
47 | PrintAndLog(" <Facility-Code> : 8-bit value AWID facility code"); | |
48 | PrintAndLog(" <Card Number> : 16-bit value AWID card number"); | |
49 | PrintAndLog(""); | |
50 | PrintAndLog("Sample : lf awid sim 224 1337"); | |
51 | return 0; | |
db25599d | 52 | } |
53 | ||
54 | int usage_lf_awid_clone(void) { | |
a126332a | 55 | PrintAndLog("Enables cloning of AWID26 card with specified facility-code and card number onto T55x7."); |
56 | PrintAndLog("The T55x7 must be on the antenna when issuing this command. T55x7 blocks are calculated and printed in the process."); | |
57 | PrintAndLog("Per AWID26 format, the facility-code is 8-bit and the card number is 16-bit. Larger values are truncated."); | |
58 | PrintAndLog(""); | |
59 | PrintAndLog("Usage: lf awid clone <Facility-Code> <Card-Number>"); | |
60 | PrintAndLog("Options :"); | |
508b37ba | 61 | PrintAndLog(" <Facility-Code> : 8-bit value AWID facility code"); |
a126332a | 62 | PrintAndLog(" <Card Number> : 16-bit value AWID card number"); |
63 | PrintAndLog(" Q5 : optional - clone to Q5 (T5555) instead of T55x7 chip"); | |
64 | PrintAndLog(""); | |
65 | PrintAndLog("Sample : lf awid clone 224 1337"); | |
66 | return 0; | |
db25599d | 67 | } |
68 | ||
508b37ba | 69 | int usage_lf_awid_brute(void){ |
70 | PrintAndLog("Enables bruteforce of AWID26 card with specified facility-code."); | |
71 | PrintAndLog("Per AWID26 format, the facility-code (FC) is 8-bit and the card number is 16-bit."); | |
72 | PrintAndLog(""); | |
73 | PrintAndLog("Usage: lf awid brute <Facility-Code>"); | |
74 | PrintAndLog("Options :"); | |
75 | PrintAndLog(" <Facility-Code> : 8-bit value AWID facility code"); | |
76 | PrintAndLog(""); | |
77 | PrintAndLog("Sample : lf awid brute 224"); | |
78 | return 0; | |
79 | } | |
80 | ||
52f2df61 | 81 | int CmdAWIDDemodFSK(const char *Cmd) { |
a126332a | 82 | int findone = 0; |
83 | if (Cmd[0] == 'h' || Cmd[0] == 'H') return usage_lf_awid_fskdemod(); | |
84 | if (Cmd[0] == '1') findone = 1; | |
85 | ||
86 | UsbCommand c = {CMD_AWID_DEMOD_FSK, {findone, 0, 0}}; | |
87 | clearCommandBuffer(); | |
88 | SendCommand(&c); | |
89 | return 0; | |
db25599d | 90 | } |
91 | ||
a126332a | 92 | //refactored by marshmellow |
93 | int getAWIDBits(uint32_t fc, uint32_t cn, uint8_t *AWIDBits) { | |
94 | uint8_t pre[66]; | |
95 | memset(pre, 0, sizeof(pre)); | |
96 | AWIDBits[7]=1; | |
97 | num_to_bytebits(26, 8, pre); | |
52f2df61 | 98 | |
a126332a | 99 | uint8_t wiegand[24]; |
100 | num_to_bytebits(fc, 8, wiegand); | |
101 | num_to_bytebits(cn, 16, wiegand+8); | |
52f2df61 | 102 | |
a126332a | 103 | wiegand_add_parity(pre+8, wiegand, 24); |
104 | ||
105 | size_t bitLen = addParity(pre, AWIDBits+8, 66, 4, 1); | |
106 | if (bitLen != 88) return 0; | |
107 | //for (uint8_t i = 0; i<3; i++){ | |
108 | // PrintAndLog("DEBUG: %08X", bytebits_to_byte(AWIDBits+(32*i),32)); | |
109 | //} | |
52f2df61 | 110 | return 1; |
db25599d | 111 | } |
112 | ||
a126332a | 113 | int CmdAWIDSim(const char *Cmd) { |
114 | uint32_t fcode = 0, cnum = 0, fc=0, cn=0; | |
115 | uint8_t bits[96]; | |
116 | uint8_t *bs = bits; | |
117 | size_t size = sizeof(bits); | |
118 | memset(bs, 0, size); | |
52f2df61 | 119 | |
120 | uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8 | |
121 | uint64_t arg2 = 50; // clk RF/50 invert=0 | |
122 | ||
123 | if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_awid_sim(); | |
124 | ||
125 | fcode = (fc & 0x000000FF); | |
126 | cnum = (cn & 0x0000FFFF); | |
127 | ||
128 | if (fc!=fcode) PrintAndLog("Facility-Code (%u) truncated to 8-bits: %u", fc, fcode); | |
129 | if (cn!=cnum) PrintAndLog("Card number (%u) truncated to 16-bits: %u", cn, cnum); | |
130 | ||
131 | PrintAndLog("Emulating AWID26 -- FC: %u; CN: %u\n", fcode, cnum); | |
132 | PrintAndLog("Press pm3-button to abort simulation or run another command"); | |
133 | ||
134 | if (!getAWIDBits(fc, cn, bs)) { | |
135 | PrintAndLog("Error with tag bitstream generation."); | |
136 | return 1; | |
137 | } | |
138 | // AWID uses: fcHigh: 10, fcLow: 8, clk: 50, invert: 0 | |
52f2df61 | 139 | // arg1 --- fcHigh<<8 + fcLow |
140 | // arg2 --- Inversion and clk setting | |
141 | // 96 --- Bitstream length: 96-bits == 12 bytes | |
a126332a | 142 | UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}}; |
143 | memcpy(c.d.asBytes, bs, size); | |
52f2df61 | 144 | clearCommandBuffer(); |
145 | SendCommand(&c); | |
146 | return 0; | |
db25599d | 147 | } |
148 | ||
a126332a | 149 | int CmdAWIDClone(const char *Cmd) { |
150 | uint32_t blocks[4] = {T55x7_MODULATION_FSK2a | T55x7_BITRATE_RF_50 | 3<<T55x7_MAXBLOCK_SHIFT, 0, 0, 0}; | |
151 | uint32_t fc=0,cn=0; | |
152 | uint8_t bits[96]; | |
52f2df61 | 153 | uint8_t *bs=bits; |
a126332a | 154 | memset(bs,0,sizeof(bits)); |
52f2df61 | 155 | |
156 | if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_awid_clone(); | |
f3cfe428 | 157 | |
a126332a | 158 | if (param_getchar(Cmd, 3) == 'Q' || param_getchar(Cmd, 3) == 'q') |
159 | blocks[0] = T5555_MODULATION_FSK2 | T5555_INVERT_OUTPUT | 50<<T5555_BITRATE_SHIFT | 3<<T5555_MAXBLOCK_SHIFT; | |
160 | ||
f3cfe428 | 161 | if ((fc & 0xFF) != fc) { |
162 | fc &= 0xFF; | |
163 | PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc); | |
164 | } | |
165 | ||
166 | if ((cn & 0xFFFF) != cn) { | |
167 | cn &= 0xFFFF; | |
168 | PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn); | |
169 | } | |
52f2df61 | 170 | |
171 | if ( !getAWIDBits(fc, cn, bs)) { | |
172 | PrintAndLog("Error with tag bitstream generation."); | |
173 | return 1; | |
174 | } | |
175 | ||
a126332a | 176 | blocks[1] = bytebits_to_byte(bs,32); |
177 | blocks[2] = bytebits_to_byte(bs+32,32); | |
178 | blocks[3] = bytebits_to_byte(bs+64,32); | |
52f2df61 | 179 | |
a126332a | 180 | PrintAndLog("Preparing to clone AWID26 to T55x7 with FC: %u, CN: %u", |
181 | fc, cn); | |
52f2df61 | 182 | PrintAndLog("Blk | Data "); |
183 | PrintAndLog("----+------------"); | |
184 | PrintAndLog(" 00 | 0x%08x", blocks[0]); | |
185 | PrintAndLog(" 01 | 0x%08x", blocks[1]); | |
186 | PrintAndLog(" 02 | 0x%08x", blocks[2]); | |
187 | PrintAndLog(" 03 | 0x%08x", blocks[3]); | |
188 | ||
189 | UsbCommand resp; | |
190 | UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}}; | |
f3cfe428 | 191 | |
a126332a | 192 | for (uint8_t i=0; i<4; i++) { |
52f2df61 | 193 | c.arg[0] = blocks[i]; |
194 | c.arg[1] = i; | |
195 | clearCommandBuffer(); | |
196 | SendCommand(&c); | |
197 | if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){ | |
198 | PrintAndLog("Error occurred, device did not respond during write operation."); | |
199 | return -1; | |
f3cfe428 | 200 | } |
201 | } | |
202 | return 0; | |
db25599d | 203 | } |
204 | ||
508b37ba | 205 | int CmdAWIDBrute(const char *Cmd){ |
206 | ||
207 | uint8_t fc = 0x00; | |
208 | uint8_t bits[96]; | |
209 | uint8_t *bs = bits; | |
210 | size_t size = sizeof(bits); | |
211 | memset(bs, 0x00, size); | |
212 | ||
213 | char cmdp = param_getchar(Cmd, 0); | |
214 | if (strlen(Cmd) > 3 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_awid_brute(); | |
215 | ||
216 | fc = param_get8(Cmd, 0); | |
217 | if ( fc == 0) return usage_lf_awid_brute(); | |
218 | ||
219 | PrintAndLog("Bruteforceing AWID26"); | |
220 | PrintAndLog("Press pm3-button to abort simulation or run another command"); | |
221 | ||
222 | uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8 | |
223 | uint64_t arg2 = 50; // clk RF/50 invert=0 | |
224 | UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, size}}; | |
225 | ||
226 | for ( uint16_t cn = 1; cn < 0xFFFF; ++cn){ | |
227 | if (ukbhit()) { | |
228 | PrintAndLog("aborted via keyboard!"); | |
229 | c.cmd = CMD_PING; | |
230 | c.arg[0] = 0x00; | |
231 | c.arg[1] = 0x00; | |
232 | c.arg[2] = 0x00; | |
233 | clearCommandBuffer(); | |
234 | SendCommand(&c); | |
235 | return 1; | |
236 | } | |
237 | ||
238 | (void)getAWIDBits(fc, cn, bs); | |
239 | memcpy(c.d.asBytes, bs, size); | |
240 | clearCommandBuffer(); | |
241 | SendCommand(&c); | |
242 | ||
243 | PrintAndLog("Trying FC: %u; CN: %u", fc, cn); | |
244 | // pause | |
245 | sleep(1); | |
246 | } | |
247 | return 0; | |
248 | } | |
249 | ||
a126332a | 250 | static command_t CommandTable[] = { |
f3cfe428 | 251 | {"help", CmdHelp, 1, "This help"}, |
252 | {"fskdemod", CmdAWIDDemodFSK, 0, "['1'] Realtime AWID FSK demodulator (option '1' for one tag only)"}, | |
253 | {"sim", CmdAWIDSim, 0, "<Facility-Code> <Card Number> -- AWID tag simulator"}, | |
a126332a | 254 | {"clone", CmdAWIDClone, 0, "<Facility-Code> <Card Number> <Q5> -- Clone AWID to T55x7"}, |
508b37ba | 255 | {"brute", CmdAWIDBrute, 0, "<Facility-Code> -- bruteforce card number"}, |
f3cfe428 | 256 | {NULL, NULL, 0, NULL} |
db25599d | 257 | }; |
258 | ||
a126332a | 259 | int CmdLFAWID(const char *Cmd) { |
f3cfe428 | 260 | CmdsParse(CommandTable, Cmd); |
261 | return 0; | |
db25599d | 262 | } |
263 | ||
a126332a | 264 | int CmdHelp(const char *Cmd) { |
f3cfe428 | 265 | CmdsHelp(CommandTable); |
266 | return 0; | |
db25599d | 267 | } |