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cvs.zerfleddert.de Git - proxmark3-svn/blob - client/cmdlfawid.c
1ace6bea23a0efb22db405842b1fda691a2c100f
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 //-----------------------------------------------------------------------------
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
19 #include "util.h" // weigandparity
20 #include "protocols.h" // for T55xx config register definitions
23 static int CmdHelp(const char *Cmd
);
25 int usage_lf_awid_fskdemod(void) {
26 PrintAndLog("Enables AWID26 compatible reader mode printing details of scanned AWID26 tags.");
27 PrintAndLog("By default, values are printed and logged until the button is pressed or another USB command is issued.");
28 PrintAndLog("If the ['1'] option is provided, reader mode is exited after reading a single AWID26 card.");
30 PrintAndLog("Usage: lf awid fskdemod ['1']");
31 PrintAndLog("Options : ");
32 PrintAndLog(" 1 : (optional) stop after reading a single card");
34 PrintAndLog("Samples : lf awid fskdemod");
35 PrintAndLog(" : lf awid fskdemod 1");
39 int usage_lf_awid_sim(void) {
40 PrintAndLog("Enables simulation of AWID26 card with specified facility-code and card number.");
41 PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
42 PrintAndLog("Per AWID26 format, the facility-code is 8-bit and the card number is 16-bit. Larger values are truncated.");
44 PrintAndLog("Usage: lf awid sim <Facility-Code> <Card-Number>");
45 PrintAndLog("Options : ");
46 PrintAndLog(" <Facility-Code> : 8-bit value representing the AWID facility code");
47 PrintAndLog(" <Card Number> : 16-bit value representing the AWID card number");
49 PrintAndLog("Sample : lf awid sim 224 1337");
53 int usage_lf_awid_clone(void) {
54 PrintAndLog("Enables cloning of AWID26 card with specified facility-code and card number onto T55x7.");
55 PrintAndLog("The T55x7 must be on the antenna when issuing this command. T55x7 blocks are calculated and printed in the process.");
56 PrintAndLog("Per AWID26 format, the facility-code is 8-bit and the card number is 16-bit. Larger values are truncated.");
58 PrintAndLog("Usage: lf awid clone <Facility-Code> <Card-Number>");
59 PrintAndLog("Options : ");
60 PrintAndLog(" <Facility-Code> : 8-bit value representing the AWID facility code");
61 PrintAndLog(" <Card Number> : 16-bit value representing the AWID card number");
62 PrintAndLog(" Q5 : optional - clone to Q5 (T5555) instead of T55x7 chip");
64 PrintAndLog("Sample : lf awid clone 224 1337");
68 int CmdAWIDDemodFSK(const char *Cmd
) {
70 if (Cmd
[0] == 'h' || Cmd
[0] == 'H') return usage_lf_awid_fskdemod();
71 if (Cmd
[0] == '1') findone
= 1;
73 UsbCommand c
= {CMD_AWID_DEMOD_FSK
, {findone
, 0, 0}};
79 //refactored by marshmellow
80 int getAWIDBits(uint32_t fc
, uint32_t cn
, uint8_t *AWIDBits
) {
82 memset(pre
, 0, sizeof(pre
));
84 num_to_bytebits(26, 8, pre
);
87 num_to_bytebits(fc
, 8, wiegand
);
88 num_to_bytebits(cn
, 16, wiegand
+8);
90 wiegand_add_parity(pre
+8, wiegand
, 24);
92 size_t bitLen
= addParity(pre
, AWIDBits
+8, 66, 4, 1);
93 if (bitLen
!= 88) return 0;
94 //for (uint8_t i = 0; i<3; i++){
95 // PrintAndLog("DEBUG: %08X", bytebits_to_byte(AWIDBits+(32*i),32));
100 int CmdAWIDSim(const char *Cmd
) {
101 uint32_t fcode
= 0, cnum
= 0, fc
=0, cn
=0;
102 uint8_t BitStream
[96];
103 uint8_t *bs
= BitStream
;
104 size_t size
= sizeof(BitStream
);
107 uint64_t arg1
= (10<<8) + 8; // fcHigh = 10, fcLow = 8
108 uint64_t arg2
= 50; // clk RF/50 invert=0
110 if (sscanf(Cmd
, "%u %u", &fc
, &cn
) != 2) return usage_lf_awid_sim();
112 fcode
= (fc
& 0x000000FF);
113 cnum
= (cn
& 0x0000FFFF);
115 if (fc
!= fcode
) PrintAndLog("Facility-Code (%u) truncated to 8-bits: %u",fc
,fcode
);
116 if (cn
!= cnum
) PrintAndLog("Card number (%u) truncated to 16-bits: %u",cn
,cnum
);
118 PrintAndLog("Emulating AWID26 -- FC: %u; CN: %u\n",fcode
,cnum
);
119 PrintAndLog("Press pm3-button to abort simulation or run another command");
121 if (!getAWIDBits(fc
, cn
, bs
)) {
122 PrintAndLog("Error with tag bitstream generation.");
125 // AWID uses: fcHigh: 10, fcLow: 8, clk: 50, invert: 0
126 UsbCommand c
= {CMD_FSK_SIM_TAG
, {arg1
, arg2
, size
}};
127 memcpy(c
.d
.asBytes
, bs
, size
);
128 clearCommandBuffer();
133 int CmdAWIDClone(const char *Cmd
) {
134 uint32_t blocks
[4] = {T55x7_MODULATION_FSK2a
| T55x7_BITRATE_RF_50
| 3<<T55x7_MAXBLOCK_SHIFT
, 0, 0, 0};
136 uint8_t BitStream
[96];
137 uint8_t *bs
=BitStream
;
138 memset(bs
,0,sizeof(BitStream
));
140 if (sscanf(Cmd
, "%u %u", &fc
, &cn
) != 2) return usage_lf_awid_clone();
142 if (param_getchar(Cmd
, 3) == 'Q' || param_getchar(Cmd
, 3) == 'q')
143 blocks
[0] = T5555_MODULATION_FSK2
| T5555_INVERT_OUTPUT
| ((50-2)>>1)<<T5555_BITRATE_SHIFT
| 3<<T5555_MAXBLOCK_SHIFT
;
145 if ((fc
& 0xFF) != fc
) {
147 PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc
);
149 if ((cn
& 0xFFFF) != cn
) {
151 PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn
);
154 if ( !getAWIDBits(fc
, cn
, bs
)) {
155 PrintAndLog("Error with tag bitstream generation.");
159 blocks
[1] = bytebits_to_byte(bs
,32);
160 blocks
[2] = bytebits_to_byte(bs
+32,32);
161 blocks
[3] = bytebits_to_byte(bs
+64,32);
163 PrintAndLog("Preparing to clone AWID26 to T55x7 with FC: %u, CN: %u",
165 PrintAndLog("Blk | Data ");
166 PrintAndLog("----+------------");
167 PrintAndLog(" 00 | 0x%08x", blocks
[0]);
168 PrintAndLog(" 01 | 0x%08x", blocks
[1]);
169 PrintAndLog(" 02 | 0x%08x", blocks
[2]);
170 PrintAndLog(" 03 | 0x%08x", blocks
[3]);
173 UsbCommand c
= {CMD_T55XX_WRITE_BLOCK
, {0,0,0}};
175 for (uint8_t i
=0; i
<4; i
++) {
176 c
.cmd
= CMD_T55XX_WRITE_BLOCK
;
177 c
.arg
[0] = blocks
[i
];
180 clearCommandBuffer();
182 if (!WaitForResponseTimeout(CMD_ACK
, &resp
, 1000)){
183 PrintAndLog("Error occurred, device did not respond during write operation.");
191 static command_t CommandTable
[] = {
192 {"help", CmdHelp
, 1, "This help"},
193 {"fskdemod", CmdAWIDDemodFSK
, 0, "['1'] Realtime AWID FSK demodulator (option '1' for one tag only)"},
194 {"sim", CmdAWIDSim
, 0, "<Facility-Code> <Card Number> -- AWID tag simulator"},
195 {"clone", CmdAWIDClone
, 0, "<Facility-Code> <Card Number> <Q5> -- Clone AWID to T55x7 (tag must be in range of antenna)"},
196 {NULL
, NULL
, 0, NULL
}
199 int CmdLFAWID(const char *Cmd
) {
200 CmdsParse(CommandTable
, Cmd
);
204 int CmdHelp(const char *Cmd
) {
205 CmdsHelp(CommandTable
);