]>
cvs.zerfleddert.de Git - proxmark3-svn/blob - client/cmdlfpyramid.c
613a0b66a61cb7913328cc201756b8eab1ab5107
1 //-----------------------------------------------------------------------------
3 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
4 // at your option, any later version. See the LICENSE.txt file for the text of
6 //-----------------------------------------------------------------------------
7 // Low frequency Farpoint / Pyramid tag commands
8 //-----------------------------------------------------------------------------
12 #include "cmdlfpyramid.h"
13 #include "proxmark3.h"
17 #include "cmdparser.h"
18 #include "cmddata.h" // setDemodBuf +
21 #include "protocols.h" // for T55xx config register definitions
22 #include "lfdemod.h" // parityTest
25 static int CmdHelp(const char *Cmd
);
27 int usage_lf_pyramid_clone(void){
28 PrintAndLog("clone a Farpointe/Pyramid tag to a T55x7 tag.");
29 PrintAndLog("The facility-code is 8-bit and the card number is 16-bit. Larger values are truncated. ");
30 PrintAndLog("Currently only works on 26bit");
32 PrintAndLog("Usage: lf pyramid clone <Facility-Code> <Card-Number>");
33 PrintAndLog("Options :");
34 PrintAndLog(" <Facility-Code> : 8-bit value facility code");
35 PrintAndLog(" <Card Number> : 16-bit value card number");
36 PrintAndLog(" Q5 : optional - clone to Q5 (T5555) instead of T55x7 chip");
38 PrintAndLog("Sample : lf pyramid clone 123 11223");
42 int usage_lf_pyramid_sim(void) {
43 PrintAndLog("Enables simulation of Farpointe/Pyramid card with specified card number.");
44 PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
45 PrintAndLog("The facility-code is 8-bit and the card number is 16-bit. Larger values are truncated.");
46 PrintAndLog("Currently work only on 26bit");
48 PrintAndLog("Usage: lf pyramid sim <Card-Number>");
49 PrintAndLog("Options :");
50 PrintAndLog(" <Facility-Code> : 8-bit value facility code");
51 PrintAndLog(" <Card Number> : 16-bit value card number");
53 PrintAndLog("Sample : lf pyramid sim 123 11223");
58 int GetPyramidBits(uint32_t fc
, uint32_t cn
, uint8_t *pyramidBits
) {
61 memset(pre
, 0x00, sizeof(pre
));
66 // Get 26 wiegand from FacilityCode, CardNumber
68 memset(wiegand
, 0x00, sizeof(wiegand
));
69 num_to_bytebits(fc
, 8, wiegand
);
70 num_to_bytebits(cn
, 16, wiegand
+8);
72 // add wiegand parity bits (dest, source, len)
73 wiegand_add_parity(pre
+80, wiegand
, 24);
75 // add paritybits (bitsource, dest, sourcelen, paritylen, parityType (odd, even,)
76 addParity(pre
+8, pyramidBits
+8, 102, 8, 1);
80 for (uint8_t i
= 0; i
< 13; i
++)
81 csBuff
[i
] = bytebits_to_byte(pyramidBits
+ 16 + (i
*8), 8);
83 uint32_t crc
= CRC8Maxim(csBuff
, 13);
84 num_to_bytebits(crc
, 8, pyramidBits
+120);
89 //Pyramid Prox demod - FSK RF/50 with preamble of 0000000000000001 (always a 128 bit data stream)
90 //print full Farpointe Data/Pyramid Prox ID and some bit format details if found
91 int CmdFSKdemodPyramid(const char *Cmd
)
93 //raw fsk demod no manchester decoding no start bit finding just get binary from wave
94 uint8_t BitStream
[MAX_GRAPH_TRACE_LEN
]={0};
95 size_t size
= getFromGraphBuf(BitStream
);
96 if (size
==0) return 0;
98 //get binary from fsk wave
99 int idx
= PyramiddemodFSK(BitStream
, &size
);
103 PrintAndLog("DEBUG: Error - not enough samples");
105 PrintAndLog("DEBUG: Error - only noise found");
107 PrintAndLog("DEBUG: Error - problem during FSK demod");
109 PrintAndLog("DEBUG: Error - Size not correct: %d", size
);
111 PrintAndLog("DEBUG: Error - Pyramid preamble not found");
113 PrintAndLog("DEBUG: Error - idx: %d",idx
);
118 // 0 10 20 30 40 50 60
120 // 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3
121 // -----------------------------------------------------------------------------
122 // 0000000 0 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1 0000000 1
123 // premable xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o xxxxxxx o
125 // 64 70 80 90 100 110 120
127 // 4567890 1 2345678 9 0123456 7 8901234 5 6789012 3 4567890 1 2345678 9 0123456 7
128 // -----------------------------------------------------------------------------
129 // 0000000 1 0000000 1 0000000 1 0110111 0 0011000 1 0000001 0 0001100 1 1001010 0
130 // xxxxxxx o xxxxxxx o xxxxxxx o xswffff o ffffccc o ccccccc o ccccccw o ppppppp o
131 // |---115---||---------71---------|
132 // s = format start bit, o = odd parity of last 7 bits
133 // f = facility code, c = card number
134 // w = wiegand parity, x = extra space for other formats
135 // p = unknown checksum
136 // (26 bit format shown)
138 //get bytes for checksum calc
139 uint8_t checksum
= bytebits_to_byte(BitStream
+ idx
+ 120, 8);
140 uint8_t csBuff
[14] = {0x00};
141 for (uint8_t i
= 0; i
< 13; i
++){
142 csBuff
[i
] = bytebits_to_byte(BitStream
+ idx
+ 16 + (i
*8), 8);
144 //check checksum calc
145 //checksum calc thanks to ICEMAN!!
146 uint32_t checkCS
= CRC8Maxim(csBuff
,13);
148 //get raw ID before removing parities
149 uint32_t rawLo
= bytebits_to_byte(BitStream
+idx
+96,32);
150 uint32_t rawHi
= bytebits_to_byte(BitStream
+idx
+64,32);
151 uint32_t rawHi2
= bytebits_to_byte(BitStream
+idx
+32,32);
152 uint32_t rawHi3
= bytebits_to_byte(BitStream
+idx
,32);
153 setDemodBuf(BitStream
,128,idx
);
155 size
= removeParity(BitStream
, idx
+8, 8, 1, 120);
158 PrintAndLog("DEBUG: Error at parity check - tag size does not match Pyramid format, SIZE: %d, IDX: %d, hi3: %x",size
, idx
, rawHi3
);
162 // ok valid card found!
165 // 0 10 20 30 40 50 60 70
167 // 01234567890123456789012345678901234567890123456789012345678901234567890
168 // -----------------------------------------------------------------------
169 // 00000000000000000000000000000000000000000000000000000000000000000000000
170 // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
174 // 1 2 34567890 1234567890123456 7 8901234
175 // ---------------------------------------
176 // 1 1 01110011 0000000001000110 0 1001010
177 // s w ffffffff cccccccccccccccc w ppppppp
178 // |--115-| |------71------|
179 // s = format start bit, o = odd parity of last 7 bits
180 // f = facility code, c = card number
181 // w = wiegand parity, x = extra space for other formats
182 // p = unknown checksum
183 // (26 bit format shown)
185 //find start bit to get fmtLen
187 for (j
=0; j
<size
; j
++){
188 if(BitStream
[j
]) break;
190 uint8_t fmtLen
= size
-j
-8;
192 uint32_t cardnum
= 0;
195 fc
= bytebits_to_byte(BitStream
+73, 8);
196 cardnum
= bytebits_to_byte(BitStream
+81, 16);
197 code1
= bytebits_to_byte(BitStream
+72,fmtLen
);
198 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Wiegand: %x, Raw: %08x%08x%08x%08x", fmtLen
, fc
, cardnum
, code1
, rawHi3
, rawHi2
, rawHi
, rawLo
);
199 } else if (fmtLen
==45){
200 fmtLen
=42; //end = 10 bits not 7 like 26 bit fmt
201 fc
= bytebits_to_byte(BitStream
+53, 10);
202 cardnum
= bytebits_to_byte(BitStream
+63, 32);
203 PrintAndLog("Pyramid ID Found - BitLength: %d, FC: %d, Card: %d - Raw: %08x%08x%08x%08x", fmtLen
, fc
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
205 cardnum
= bytebits_to_byte(BitStream
+81, 16);
207 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen-32);
208 //code2 = bytebits_to_byte(BitStream+(size-32),32);
209 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
211 //code1 = bytebits_to_byte(BitStream+(size-fmtLen),fmtLen);
212 PrintAndLog("Pyramid ID Found - BitLength: %d -unknown BitLength- (%d), Raw: %08x%08x%08x%08x", fmtLen
, cardnum
, rawHi3
, rawHi2
, rawHi
, rawLo
);
215 if (checksum
== checkCS
)
216 PrintAndLog("Checksum %02x passed", checksum
);
218 PrintAndLog("Checksum %02x failed - should have been %02x", checksum
, checkCS
);
221 PrintAndLog("DEBUG: idx: %d, Len: %d, Printing Demod Buffer:", idx
, 128);
227 int CmdPyramidRead(const char *Cmd
) {
229 getSamples("30000",false);
230 return CmdFSKdemodPyramid("");
233 int CmdPyramidClone(const char *Cmd
) {
235 char cmdp
= param_getchar(Cmd
, 0);
236 if (strlen(Cmd
) == 0 || cmdp
== 'h' || cmdp
== 'H') return usage_lf_pyramid_clone();
238 uint32_t facilitycode
=0, cardnumber
=0, fc
= 0, cn
= 0;
242 memset(bs
, 0x00, sizeof(bs
));
244 if (sscanf(Cmd
, "%u %u", &fc
, &cn
) != 2) return usage_lf_pyramid_clone();
246 facilitycode
= (fc
& 0x000000FF);
247 cardnumber
= (cn
& 0x0000FFFF);
249 if ( !GetPyramidBits(facilitycode
, cardnumber
, bs
)) {
250 PrintAndLog("Error with tag bitstream generation.");
254 //Pyramid - compat mode, FSK2a, data rate 50, 4 data blocks
255 blocks
[0] = T55x7_MODULATION_FSK2a
| T55x7_BITRATE_RF_50
| 4<<T55x7_MAXBLOCK_SHIFT
;
257 if (param_getchar(Cmd
, 3) == 'Q' || param_getchar(Cmd
, 3) == 'q')
258 blocks
[0] = T5555_MODULATION_FSK2
| T5555_INVERT_OUTPUT
| 50<<T5555_BITRATE_SHIFT
| 4<<T5555_MAXBLOCK_SHIFT
;
260 blocks
[1] = bytebits_to_byte(bs
,32);
261 blocks
[2] = bytebits_to_byte(bs
+32,32);
262 blocks
[3] = bytebits_to_byte(bs
+64,32);
263 blocks
[4] = bytebits_to_byte(bs
+96,32);
265 PrintAndLog("Preparing to clone Farpointe/Pyramid to T55x7 with Facility Code: %u, Card Number: %u", facilitycode
, cardnumber
);
266 PrintAndLog("Blk | Data ");
267 PrintAndLog("----+------------");
268 for ( i
= 0; i
<5; ++i
)
269 PrintAndLog(" %02d | %08" PRIx32
, i
, blocks
[i
]);
272 UsbCommand c
= {CMD_T55XX_WRITE_BLOCK
, {0,0,0}};
274 for ( i
= 0; i
<5; ++i
) {
275 c
.arg
[0] = blocks
[i
];
277 clearCommandBuffer();
279 if (!WaitForResponseTimeout(CMD_ACK
, &resp
, 1000)){
280 PrintAndLog("Error occurred, device did not respond during write operation.");
287 int CmdPyramidSim(const char *Cmd
) {
289 char cmdp
= param_getchar(Cmd
, 0);
290 if (strlen(Cmd
) == 0 || cmdp
== 'h' || cmdp
== 'H') return usage_lf_pyramid_sim();
292 uint32_t facilitycode
= 0, cardnumber
= 0, fc
= 0, cn
= 0;
295 size_t size
= sizeof(bs
);
296 memset(bs
, 0x00, size
);
298 // Pyramid uses: fcHigh: 10, fcLow: 8, clk: 50, invert: 0
300 arg1
= (10 << 8) + 8;
303 if (sscanf(Cmd
, "%u %u", &fc
, &cn
) != 2) return usage_lf_pyramid_sim();
305 facilitycode
= (fc
& 0x000000FF);
306 cardnumber
= (cn
& 0x0000FFFF);
308 if ( !GetPyramidBits(facilitycode
, cardnumber
, bs
)) {
309 PrintAndLog("Error with tag bitstream generation.");
313 PrintAndLog("Simulating Farpointe/Pyramid - Facility Code: %u, CardNumber: %u", facilitycode
, cardnumber
);
315 UsbCommand c
= {CMD_FSK_SIM_TAG
, {arg1
, arg2
, size
}};
316 memcpy(c
.d
.asBytes
, bs
, size
);
317 clearCommandBuffer();
322 static command_t CommandTable
[] = {
323 {"help", CmdHelp
, 1, "This help"},
324 {"demod", CmdFSKdemodPyramid
, 1, "Demodulate a Pyramid FSK tag from the GraphBuffer"},
325 {"read", CmdPyramidRead
, 0, "Attempt to read and extract tag data"},
326 {"clone", CmdPyramidClone
, 0, "<Facility-Code> <Card Number> clone pyramid tag"},
327 {"sim", CmdPyramidSim
, 0, "<Facility-Code> <Card Number> simulate pyramid tag"},
328 {NULL
, NULL
, 0, NULL
}
331 int CmdLFPyramid(const char *Cmd
) {
332 clearCommandBuffer();
333 CmdsParse(CommandTable
, Cmd
);
337 int CmdHelp(const char *Cmd
) {
338 CmdsHelp(CommandTable
);