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git.zerfleddert.de Git - proxmark3-svn/blob - client/cmdlfawid.c
1 //-----------------------------------------------------------------------------
2 // Authored by Craig Young <cyoung@tripwire.com> based on cmdlfhid.c structure
4 // cmdlfhid.c is Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
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
9 //-----------------------------------------------------------------------------
10 // Low frequency AWID26 commands
11 // FSK2a, RF/50, 96 bits (complete)
12 //-----------------------------------------------------------------------------
14 #include "cmdlfawid.h"
17 #include <stdio.h> // sscanf
18 #include "comms.h" // Definitions, USB controls, etc
19 #include "ui.h" // PrintAndLog
20 #include "cmdparser.h" // CmdsParse, CmdsHelp
21 #include "lfdemod.h" // parityTest +
22 #include "util.h" // weigandparity
23 #include "protocols.h" // for T55xx config register definitions
24 #include "cmddata.h" // for printDemod and demodbuffer commands
25 #include "graph.h" // for getFromGraphBuff cmds
28 static int CmdHelp(const char *Cmd
);
30 int usage_lf_awid_read(void) {
31 PrintAndLog("Enables AWID26 compatible reader mode printing details of scanned AWID26 tags.");
32 PrintAndLog("By default, values are printed and logged until the button is pressed or another USB command is issued.");
33 PrintAndLog("If the ['1'] option is provided, reader mode is exited after reading a single AWID26 card.");
35 PrintAndLog("Usage: lf awid read ['1']");
36 PrintAndLog("Options : ");
37 PrintAndLog(" 1 : (optional) stop after reading a single card");
39 PrintAndLog("Samples : lf awid read");
40 PrintAndLog(" : lf awid read 1");
44 int usage_lf_awid_sim(void) {
45 PrintAndLog("Enables simulation of AWID26 card with specified facility-code and card number.");
46 PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
47 PrintAndLog("Per AWID26 format, the facility-code is 8-bit and the card number is 16-bit. Larger values are truncated.");
49 PrintAndLog("Usage: lf awid sim <Facility-Code> <Card-Number>");
50 PrintAndLog("Options : ");
51 PrintAndLog(" <Facility-Code> : 8-bit value representing the AWID facility code");
52 PrintAndLog(" <Card Number> : 16-bit value representing the AWID card number");
54 PrintAndLog("Sample : lf awid sim 224 1337");
58 int usage_lf_awid_clone(void) {
59 PrintAndLog("Enables cloning of AWID26 card with specified facility-code and card number onto T55x7.");
60 PrintAndLog("The T55x7 must be on the antenna when issuing this command. T55x7 blocks are calculated and printed in the process.");
61 PrintAndLog("Per AWID26 format, the facility-code is 8-bit and the card number is 16-bit. Larger values are truncated.");
63 PrintAndLog("Usage: lf awid clone <Facility-Code> <Card-Number>");
64 PrintAndLog("Options : ");
65 PrintAndLog(" <Facility-Code> : 8-bit value representing the AWID facility code");
66 PrintAndLog(" <Card Number> : 16-bit value representing the AWID card number");
67 PrintAndLog(" Q5 : optional - clone to Q5 (T5555) instead of T55x7 chip");
69 PrintAndLog("Sample : lf awid clone 224 1337");
73 int CmdAWIDReadFSK(const char *Cmd
) {
75 if (Cmd
[0] == 'h' || Cmd
[0] == 'H') return usage_lf_awid_read();
76 if (Cmd
[0] == '1') findone
= 1;
78 UsbCommand c
= {CMD_AWID_DEMOD_FSK
, {findone
, 0, 0}};
84 //AWID Prox demod - FSK RF/50 with preamble of 00000001 (always a 96 bit data stream)
85 //print full AWID Prox ID and some bit format details if found
86 int CmdFSKdemodAWID(const char *Cmd
)
88 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
89 size_t size
= getFromGraphBuf(BitStream
);
90 if (size
==0) return 0;
93 //get binary from fsk wave
94 int idx
= AWIDdemodFSK(BitStream
, &size
, &waveIdx
);
98 PrintAndLog("DEBUG: Error - not enough samples");
100 PrintAndLog("DEBUG: Error - only noise found");
102 PrintAndLog("DEBUG: Error - problem during FSK demod");
104 PrintAndLog("DEBUG: Error - AWID preamble not found");
106 PrintAndLog("DEBUG: Error - Size not correct: %d", size
);
108 PrintAndLog("DEBUG: Error %d",idx
);
114 // 0 10 20 30 40 50 60
116 // 01234567 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 456 7 890 1 234 5 678 9 012 3 - to 96
117 // -----------------------------------------------------------------------------
118 // 00000001 000 1 110 1 101 1 011 1 101 1 010 0 000 1 000 1 010 0 001 0 110 1 100 0 000 1 000 1
119 // premable bbb o bbb o bbw o fff o fff o ffc o ccc o ccc o ccc o ccc o ccc o wxx o xxx o xxx o - to 96
120 // |---26 bit---| |-----117----||-------------142-------------|
121 // b = format bit len, o = odd parity of last 3 bits
122 // f = facility code, c = card number
123 // w = wiegand parity
124 // (26 bit format shown)
126 //get raw ID before removing parities
127 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+64,32);
128 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+32,32);
129 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
,32);
130 setDemodBuf(BitStream
,96,idx
);
131 setClockGrid(50, waveIdx
+ (idx
*50));
133 size
= removeParity(BitStream
, idx
+8, 4, 1, 88);
135 if (g_debugMode
) PrintAndLog("DEBUG: Error - at parity check-tag size does not match AWID format");
138 // ok valid card found!
141 // 0 10 20 30 40 50 60
143 // 01234567 8 90123456 7890123456789012 3 456789012345678901234567890123456
144 // -----------------------------------------------------------------------------
145 // 00011010 1 01110101 0000000010001110 1 000000000000000000000000000000000
146 // bbbbbbbb w ffffffff cccccccccccccccc w xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
147 // |26 bit| |-117--| |-----142------|
148 // b = format bit len, o = odd parity of last 3 bits
149 // f = facility code, c = card number
150 // w = wiegand parity
151 // (26 bit format shown)
154 uint32_t cardnum
= 0;
157 uint8_t fmtLen
= bytebits_to_byte(BitStream
,8);
159 fc
= bytebits_to_byte(BitStream
+9, 8);
160 cardnum
= bytebits_to_byte(BitStream
+17, 16);
161 code1
= bytebits_to_byte(BitStream
+8,fmtLen
);
162 PrintAndLog("AWID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x", fmtLen
, fc
, cardnum
, code1
, rawHi2
, rawHi
, rawLo
);
164 cardnum
= bytebits_to_byte(BitStream
+8+(fmtLen
-17), 16);
166 code1
= bytebits_to_byte(BitStream
+8,fmtLen
-32);
167 code2
= bytebits_to_byte(BitStream
+8+(fmtLen
-32),32);
168 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x%08x, Raw: %08x%08x%08x", fmtLen
, cardnum
, code1
, code2
, rawHi2
, rawHi
, rawLo
);
170 code1
= bytebits_to_byte(BitStream
+8,fmtLen
);
171 PrintAndLog("AWID Found - BitLength: %d -unknown BitLength- (%d) - Wiegand: %x, Raw: %08x%08x%08x", fmtLen
, cardnum
, code1
, rawHi2
, rawHi
, rawLo
);
175 PrintAndLog("DEBUG: idx: %d, Len: %d Printing Demod Buffer:", idx
, 96);
178 //todo - convert hi2, hi, lo to demodbuffer for future sim/clone commands
182 //refactored by marshmellow
183 int getAWIDBits(uint32_t fc
, uint32_t cn
, uint8_t *AWIDBits
) {
185 memset(pre
, 0, sizeof(pre
));
187 num_to_bytebits(26, 8, pre
);
190 num_to_bytebits(fc
, 8, wiegand
);
191 num_to_bytebits(cn
, 16, wiegand
+8);
193 wiegand_add_parity(pre
+8, wiegand
, 24);
195 size_t bitLen
= addParity(pre
, AWIDBits
+8, 66, 4, 1);
196 if (bitLen
!= 88) return 0;
197 //for (uint8_t i = 0; i<3; i++){
198 // PrintAndLog("DEBUG: %08X", bytebits_to_byte(AWIDBits+(32*i),32));
203 int CmdAWIDSim(const char *Cmd
) {
204 uint32_t fcode
= 0, cnum
= 0, fc
=0, cn
=0;
205 uint8_t BitStream
[96];
206 uint8_t *bs
= BitStream
;
207 size_t size
= sizeof(BitStream
);
210 uint64_t arg1
= (10<<8) + 8; // fcHigh = 10, fcLow = 8
211 uint64_t arg2
= 50; // clk RF/50 invert=0
213 if (sscanf(Cmd
, "%u %u", &fc
, &cn
) != 2) return usage_lf_awid_sim();
215 fcode
= (fc
& 0x000000FF);
216 cnum
= (cn
& 0x0000FFFF);
218 if (fc
!= fcode
) PrintAndLog("Facility-Code (%u) truncated to 8-bits: %u",fc
,fcode
);
219 if (cn
!= cnum
) PrintAndLog("Card number (%u) truncated to 16-bits: %u",cn
,cnum
);
221 PrintAndLog("Emulating AWID26 -- FC: %u; CN: %u\n",fcode
,cnum
);
222 PrintAndLog("Press pm3-button to abort simulation or run another command");
224 if (!getAWIDBits(fc
, cn
, bs
)) {
225 PrintAndLog("Error with tag bitstream generation.");
228 // AWID uses: fcHigh: 10, fcLow: 8, clk: 50, invert: 0
229 UsbCommand c
= {CMD_FSK_SIM_TAG
, {arg1
, arg2
, size
}};
230 memcpy(c
.d
.asBytes
, bs
, size
);
231 clearCommandBuffer();
236 int CmdAWIDClone(const char *Cmd
) {
237 uint32_t blocks
[4] = {T55x7_MODULATION_FSK2a
| T55x7_BITRATE_RF_50
| 3<<T55x7_MAXBLOCK_SHIFT
, 0, 0, 0};
239 uint8_t BitStream
[96];
240 uint8_t *bs
=BitStream
;
241 memset(bs
,0,sizeof(BitStream
));
243 if (sscanf(Cmd
, "%u %u", &fc
, &cn
) != 2) return usage_lf_awid_clone();
245 if (param_getchar(Cmd
, 3) == 'Q' || param_getchar(Cmd
, 3) == 'q')
246 blocks
[0] = T5555_MODULATION_FSK2
| T5555_INVERT_OUTPUT
| ((50-2)>>1)<<T5555_BITRATE_SHIFT
| 3<<T5555_MAXBLOCK_SHIFT
;
248 if ((fc
& 0xFF) != fc
) {
250 PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc
);
252 if ((cn
& 0xFFFF) != cn
) {
254 PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn
);
257 if ( !getAWIDBits(fc
, cn
, bs
)) {
258 PrintAndLog("Error with tag bitstream generation.");
262 blocks
[1] = bytebits_to_byte(bs
,32);
263 blocks
[2] = bytebits_to_byte(bs
+32,32);
264 blocks
[3] = bytebits_to_byte(bs
+64,32);
266 PrintAndLog("Preparing to clone AWID26 to T55x7 with FC: %u, CN: %u",
268 PrintAndLog("Blk | Data ");
269 PrintAndLog("----+------------");
270 PrintAndLog(" 00 | 0x%08x", blocks
[0]);
271 PrintAndLog(" 01 | 0x%08x", blocks
[1]);
272 PrintAndLog(" 02 | 0x%08x", blocks
[2]);
273 PrintAndLog(" 03 | 0x%08x", blocks
[3]);
276 UsbCommand c
= {CMD_T55XX_WRITE_BLOCK
, {0,0,0}};
278 for (uint8_t i
=0; i
<4; i
++) {
279 c
.cmd
= CMD_T55XX_WRITE_BLOCK
;
280 c
.arg
[0] = blocks
[i
];
283 clearCommandBuffer();
285 if (!WaitForResponseTimeout(CMD_ACK
, &resp
, 1000)){
286 PrintAndLog("Error occurred, device did not respond during write operation.");
294 static command_t CommandTable
[] = {
295 {"help", CmdHelp
, 1, "This help"},
296 {"demod", CmdFSKdemodAWID
, 1, "Demodulate an AWID FSK tag from the GraphBuffer"},
297 {"read", CmdAWIDReadFSK
, 0, "['1'] Realtime AWID FSK read from the antenna (option '1' for one tag only)"},
298 {"sim", CmdAWIDSim
, 0, "<Facility-Code> <Card Number> -- AWID tag simulator"},
299 {"clone", CmdAWIDClone
, 0, "<Facility-Code> <Card Number> <Q5> -- Clone AWID to T55x7 (tag must be in range of antenna)"},
300 {NULL
, NULL
, 0, NULL
}
303 int CmdLFAWID(const char *Cmd
) {
304 CmdsParse(CommandTable
, Cmd
);
308 int CmdHelp(const char *Cmd
) {
309 CmdsHelp(CommandTable
);