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cvs.zerfleddert.de Git - proxmark3-svn/blob - client/cmdlfawid.c
8843e9e0cf6de146e8e605bebfee01fa3766113a
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 //-----------------------------------------------------------------------------
14 #include <stdio.h> // sscanf
15 #include "proxmark3.h" // Definitions, USB controls, etc
16 #include "ui.h" // PrintAndLog
17 #include "cmdparser.h" // CmdsParse, CmdsHelp
18 #include "cmdlfawid.h" // AWID function declarations
19 #include "lfdemod.h" // parityTest
20 #include "util.h" // weigandparity
21 #include "protocols.h" // for T55xx config register definitions
24 static int CmdHelp(const char *Cmd
);
26 int usage_lf_awid_fskdemod(void) {
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.");
31 PrintAndLog("Usage: lf awid fskdemod ['1']");
32 PrintAndLog("Options : ");
33 PrintAndLog(" 1 : (optional) stop after reading a single card");
35 PrintAndLog("Samples : lf awid fskdemod");
36 PrintAndLog(" : lf awid fskdemod 1");
40 int usage_lf_awid_sim(void) {
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.");
45 PrintAndLog("Usage: lf awid sim <Facility-Code> <Card-Number>");
46 PrintAndLog("Options : ");
47 PrintAndLog(" <Facility-Code> : 8-bit value representing the AWID facility code");
48 PrintAndLog(" <Card Number> : 16-bit value representing the AWID card number");
50 PrintAndLog("Sample : lf awid sim 224 1337");
54 int usage_lf_awid_clone(void) {
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.");
59 PrintAndLog("Usage: lf awid clone <Facility-Code> <Card-Number>");
60 PrintAndLog("Options : ");
61 PrintAndLog(" <Facility-Code> : 8-bit value representing the AWID facility code");
62 PrintAndLog(" <Card Number> : 16-bit value representing the AWID card number");
63 PrintAndLog(" Q5 : optional - clone to Q5 (T5555) instead of T55x7 chip");
65 PrintAndLog("Sample : lf awid clone 224 1337");
69 int CmdAWIDDemodFSK(const char *Cmd
) {
71 if (Cmd
[0] == 'h' || Cmd
[0] == 'H') return usage_lf_awid_fskdemod();
72 if (Cmd
[0] == '1') findone
= 1;
74 UsbCommand c
= {CMD_AWID_DEMOD_FSK
, {findone
, 0, 0}};
80 //refactored by marshmellow
81 int getAWIDBits(uint32_t fc
, uint32_t cn
, uint8_t *AWIDBits
) {
83 memset(pre
, 0, sizeof(pre
));
85 num_to_bytebits(26, 8, pre
);
88 num_to_bytebits(fc
, 8, wiegand
);
89 num_to_bytebits(cn
, 16, wiegand
+8);
91 wiegand_add_parity(pre
+8, wiegand
, 24);
93 size_t bitLen
= addParity(pre
, AWIDBits
+8, 66, 4, 1);
94 if (bitLen
!= 88) return 0;
95 //for (uint8_t i = 0; i<3; i++){
96 // PrintAndLog("DEBUG: %08X", bytebits_to_byte(AWIDBits+(32*i),32));
101 int CmdAWIDSim(const char *Cmd
) {
102 uint32_t fcode
= 0, cnum
= 0, fc
=0, cn
=0;
103 uint8_t BitStream
[96];
104 uint8_t *bs
= BitStream
;
105 size_t size
= sizeof(BitStream
);
108 uint64_t arg1
= (10<<8) + 8; // fcHigh = 10, fcLow = 8
109 uint64_t arg2
= 50; // clk RF/50 invert=0
111 if (sscanf(Cmd
, "%u %u", &fc
, &cn
) != 2) return usage_lf_awid_sim();
113 fcode
= (fc
& 0x000000FF);
114 cnum
= (cn
& 0x0000FFFF);
116 if (fc
!= fcode
) PrintAndLog("Facility-Code (%u) truncated to 8-bits: %u",fc
,fcode
);
117 if (cn
!= cnum
) PrintAndLog("Card number (%u) truncated to 16-bits: %u",cn
,cnum
);
119 PrintAndLog("Emulating AWID26 -- FC: %u; CN: %u\n",fcode
,cnum
);
120 PrintAndLog("Press pm3-button to abort simulation or run another command");
122 if (!getAWIDBits(fc
, cn
, bs
)) {
123 PrintAndLog("Error with tag bitstream generation.");
126 // AWID uses: fcHigh: 10, fcLow: 8, clk: 50, invert: 0
127 UsbCommand c
= {CMD_FSK_SIM_TAG
, {arg1
, arg2
, size
}};
128 memcpy(c
.d
.asBytes
, bs
, size
);
129 clearCommandBuffer();
134 int CmdAWIDClone(const char *Cmd
) {
135 uint32_t blocks
[4] = {T55x7_MODULATION_FSK2a
| T55x7_BITRATE_RF_50
| 3<<T55x7_MAXBLOCK_SHIFT
, 0, 0, 0};
137 uint8_t BitStream
[96];
138 uint8_t *bs
=BitStream
;
139 memset(bs
,0,sizeof(BitStream
));
141 if (sscanf(Cmd
, "%u %u", &fc
, &cn
) != 2) return usage_lf_awid_clone();
143 if (param_getchar(Cmd
, 3) == 'Q' || param_getchar(Cmd
, 3) == 'q')
144 blocks
[0] = T5555_MODULATION_FSK2
| T5555_INVERT_OUTPUT
| ((50-2)>>1)<<T5555_BITRATE_SHIFT
| 3<<T5555_MAXBLOCK_SHIFT
;
146 if ((fc
& 0xFF) != fc
) {
148 PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc
);
150 if ((cn
& 0xFFFF) != cn
) {
152 PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn
);
155 if ( !getAWIDBits(fc
, cn
, bs
)) {
156 PrintAndLog("Error with tag bitstream generation.");
160 blocks
[1] = bytebits_to_byte(bs
,32);
161 blocks
[2] = bytebits_to_byte(bs
+32,32);
162 blocks
[3] = bytebits_to_byte(bs
+64,32);
164 PrintAndLog("Preparing to clone AWID26 to T55x7 with FC: %u, CN: %u",
166 PrintAndLog("Blk | Data ");
167 PrintAndLog("----+------------");
168 PrintAndLog(" 00 | 0x%08x", blocks
[0]);
169 PrintAndLog(" 01 | 0x%08x", blocks
[1]);
170 PrintAndLog(" 02 | 0x%08x", blocks
[2]);
171 PrintAndLog(" 03 | 0x%08x", blocks
[3]);
174 UsbCommand c
= {CMD_T55XX_WRITE_BLOCK
, {0,0,0}};
176 for (uint8_t i
=0; i
<4; i
++) {
177 c
.cmd
= CMD_T55XX_WRITE_BLOCK
;
178 c
.arg
[0] = blocks
[i
];
181 clearCommandBuffer();
183 if (!WaitForResponseTimeout(CMD_ACK
, &resp
, 1000)){
184 PrintAndLog("Error occurred, device did not respond during write operation.");
192 static command_t CommandTable
[] = {
193 {"help", CmdHelp
, 1, "This help"},
194 {"fskdemod", CmdAWIDDemodFSK
, 0, "['1'] Realtime AWID FSK demodulator (option '1' for one tag only)"},
195 {"sim", CmdAWIDSim
, 0, "<Facility-Code> <Card Number> -- AWID tag simulator"},
196 {"clone", CmdAWIDClone
, 0, "<Facility-Code> <Card Number> <Q5> -- Clone AWID to T55x7 (tag must be in range of antenna)"},
197 {NULL
, NULL
, 0, NULL
}
200 int CmdLFAWID(const char *Cmd
) {
201 CmdsParse(CommandTable
, Cmd
);
205 int CmdHelp(const char *Cmd
) {
206 CmdsHelp(CommandTable
);