// at your option, any later version. See the LICENSE.txt file for the text of
// the license.
//-----------------------------------------------------------------------------
-// Low frequency AWID26 commands
+// Low frequency AWID26/50 commands
//-----------------------------------------------------------------------------
-
-#include <stdio.h> // sscanf
-#include "proxmark3.h" // Definitions, USB controls, etc
-#include "ui.h" // PrintAndLog
-#include "cmdparser.h" // CmdsParse, CmdsHelp
#include "cmdlfawid.h" // AWID function declarations
-#include "lfdemod.h" // parityTest
-#include "util.h" // weigandparity
-#include "protocols.h" // for T55xx config register definitions
-#include "cmdmain.h"
-
+
static int CmdHelp(const char *Cmd);
int usage_lf_awid_fskdemod(void) {
- PrintAndLog("Enables AWID26 compatible reader mode printing details of scanned AWID26 tags.");
+ PrintAndLog("Enables AWID compatible reader mode printing details of scanned AWID26 or AWID50 tags.");
PrintAndLog("By default, values are printed and logged until the button is pressed or another USB command is issued.");
- PrintAndLog("If the ['1'] option is provided, reader mode is exited after reading a single AWID26 card.");
+ PrintAndLog("If the [1] option is provided, reader mode is exited after reading a single AWID card.");
PrintAndLog("");
- PrintAndLog("Usage: lf awid fskdemod ['1']");
- PrintAndLog("Options :");
- PrintAndLog(" 1 : (optional) stop after reading a single card");
+ PrintAndLog("Usage: lf awid fskdemod [h] [1]");
+ PrintAndLog("Options:");
+ PrintAndLog(" h : This help");
+ PrintAndLog(" 1 : (optional) stop after reading a single card");
PrintAndLog("");
- PrintAndLog("Samples : lf awid fskdemod");
- PrintAndLog(" : lf awid fskdemod 1");
+ PrintAndLog("Samples:");
+ PrintAndLog(" lf awid fskdemod");
+ PrintAndLog(" lf awid fskdemod 1");
return 0;
}
int usage_lf_awid_sim(void) {
- PrintAndLog("Enables simulation of AWID26 card with specified facility-code and card number.");
+ PrintAndLog("Enables simulation of AWID card with specified facility-code and card number.");
PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
- PrintAndLog("Per AWID26 format, the facility-code is 8-bit and the card number is 16-bit. Larger values are truncated.");
PrintAndLog("");
- PrintAndLog("Usage: lf awid sim <Facility-Code> <Card-Number>");
- PrintAndLog("Options :");
- PrintAndLog(" <Facility-Code> : 8-bit value AWID facility code");
- PrintAndLog(" <Card Number> : 16-bit value AWID card number");
+ PrintAndLog("Usage: lf awid sim [h] <format> <facility-code> <card-number>");
+ PrintAndLog("Options:");
+ PrintAndLog(" h : This help");
+ PrintAndLog(" <format> : format length 26|34|37|50");
+ PrintAndLog(" <facility-code> : 8|16bit value facility code");
+ PrintAndLog(" <card number> : 16|32-bit value card number");
PrintAndLog("");
- PrintAndLog("Sample : lf awid sim 224 1337");
+ PrintAndLog("Samples:");
+ PrintAndLog(" lf awid sim 26 224 1337");
+ PrintAndLog(" lf awid sim 50 2001 13371337");
return 0;
}
int usage_lf_awid_clone(void) {
- PrintAndLog("Enables cloning of AWID26 card with specified facility-code and card number onto T55x7.");
+ PrintAndLog("Enables cloning of AWID card with specified facility-code and card number onto T55x7.");
PrintAndLog("The T55x7 must be on the antenna when issuing this command. T55x7 blocks are calculated and printed in the process.");
- PrintAndLog("Per AWID26 format, the facility-code is 8-bit and the card number is 16-bit. Larger values are truncated.");
PrintAndLog("");
- PrintAndLog("Usage: lf awid clone <Facility-Code> <Card-Number>");
- PrintAndLog("Options :");
- PrintAndLog(" <Facility-Code> : 8-bit value AWID facility code");
- PrintAndLog(" <Card Number> : 16-bit value AWID card number");
- PrintAndLog(" Q5 : optional - clone to Q5 (T5555) instead of T55x7 chip");
+ PrintAndLog("Usage: lf awid clone [h] <format> <facility-code> <card-number> [Q5]");
+ PrintAndLog("Options:");
+ PrintAndLog(" h : This help");
+ PrintAndLog(" <format> : format length 26|34|37|50");
+ PrintAndLog(" <facility-code> : 8|16bit value facility code");
+ PrintAndLog(" <card number> : 16|32-bit value card number");
+ PrintAndLog(" Q5 : optional - clone to Q5 (T5555) instead of T55x7 chip");
PrintAndLog("");
- PrintAndLog("Sample : lf awid clone 224 1337");
+ PrintAndLog("Samples:");
+ PrintAndLog(" lf awid clone 26 224 1337");
+ PrintAndLog(" lf awid clone 50 2001 13371337");
return 0;
}
+int usage_lf_awid_brute(void){
+ PrintAndLog("Enables bruteforce of AWID reader with specified facility-code.");
+ PrintAndLog("This is a attack against reader. if cardnumber is given, it starts with it and goes up / down one step");
+ PrintAndLog("if cardnumber is not given, it starts with 1 and goes up to 65535");
+ PrintAndLog("");
+ PrintAndLog("Usage: lf awid brute [h] a <format> f <facility-code> c <cardnumber> d <delay>");
+ PrintAndLog("Options:");
+ PrintAndLog(" h : This help");
+ PrintAndLog(" a <format> : format length 26|50");
+ PrintAndLog(" f <facility-code> : 8|16bit value facility code");
+ PrintAndLog(" c <cardnumber> : (optional) cardnumber to start with, max 65535");
+ PrintAndLog(" d <delay> : delay betweens attempts in ms. Default 1000ms");
+ PrintAndLog("");
+ PrintAndLog("Samples:");
+ PrintAndLog(" lf awid brute a 26 f 224");
+ PrintAndLog(" lf awid brute a 50 f 2001 d 2000");
+ PrintAndLog(" lf awid brute a 50 f 2001 c 200 d 2000");
+ return 0;
+}
+
+static int sendPing(void){
+ UsbCommand ping = {CMD_PING, {1, 2, 3}};
+ SendCommand(&ping);
+ SendCommand(&ping);
+ SendCommand(&ping);
+ clearCommandBuffer();
+ UsbCommand resp;
+ if (WaitForResponseTimeout(CMD_ACK, &resp, 1000))
+ return 0;
+ return 1;
+}
+
+static bool sendTry(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint32_t delay, uint8_t *bs, size_t bs_len){
+
+ PrintAndLog("Trying FC: %u; CN: %u", fc, cn);
+ if ( !getAWIDBits(fmtlen, fc, cn, bs)) {
+ PrintAndLog("Error with tag bitstream generation.");
+ return FALSE;
+ }
+
+ uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8
+ uint64_t arg2 = 50; // clk RF/50 invert=0
+ UsbCommand c = {CMD_FSK_SIM_TAG, {arg1, arg2, bs_len}};
+ memcpy(c.d.asBytes, bs, bs_len);
+ clearCommandBuffer();
+ SendCommand(&c);
+ msleep(delay);
+ sendPing();
+ return TRUE;
+}
+
int CmdAWIDDemodFSK(const char *Cmd) {
- int findone = 0;
- if (Cmd[0] == 'h' || Cmd[0] == 'H') return usage_lf_awid_fskdemod();
- if (Cmd[0] == '1') findone = 1;
+ if (Cmd[0] == 'h' || Cmd[0] == 'H') return usage_lf_awid_fskdemod();
+ uint8_t findone = (Cmd[0] == '1') ? 1 : 0;
UsbCommand c = {CMD_AWID_DEMOD_FSK, {findone, 0, 0}};
clearCommandBuffer();
SendCommand(&c);
return 0;
}
+int CmdAWIDRead(const char *Cmd) {
+ CmdLFRead("s");
+ getSamples("12000", TRUE);
+ return CmdFSKdemodAWID(Cmd);
+}
+
//refactored by marshmellow
-int getAWIDBits(uint32_t fc, uint32_t cn, uint8_t *AWIDBits) {
+int getAWIDBits(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint8_t *bits) {
+
+ // the return bits, preamble 0000 0001
+ bits[7] = 1;
+
uint8_t pre[66];
memset(pre, 0, sizeof(pre));
- AWIDBits[7]=1;
- num_to_bytebits(26, 8, pre);
-
- uint8_t wiegand[24];
- num_to_bytebits(fc, 8, wiegand);
- num_to_bytebits(cn, 16, wiegand+8);
- wiegand_add_parity(pre+8, wiegand, 24);
+ // add formatlength
+ num_to_bytebits(fmtlen, 8, pre);
+
+ // add facilitycode, cardnumber and wiegand parity bits
+ switch (fmtlen) {
+ case 26:{
+ uint8_t wiegand[24];
+ num_to_bytebits(fc, 8, wiegand);
+ num_to_bytebits(cn, 16, wiegand+8);
+ wiegand_add_parity(pre+8, wiegand, sizeof(wiegand));
+ break;
+ }
+ case 34:{
+ uint8_t wiegand[32];
+ num_to_bytebits(fc, 8, wiegand);
+ num_to_bytebits(cn, 24, wiegand+8);
+ wiegand_add_parity(pre+8, wiegand, sizeof(wiegand));
+ break;
+ }
+ case 37:{
+ uint8_t wiegand[31];
+ num_to_bytebits(fc, 13, wiegand);
+ num_to_bytebits(cn, 18, wiegand+13);
+ wiegand_add_parity(pre+8, wiegand, sizeof(wiegand));
+ break;
+ }
+ case 50: {
+ uint8_t wiegand[48];
+ num_to_bytebits(fc, 16, wiegand);
+ num_to_bytebits(cn, 32, wiegand+16);
+ wiegand_add_parity(pre+8, wiegand, sizeof(wiegand));
+ break;
+ }
+ }
+
+ // add AWID 4bit parity
+ size_t bitLen = addParity(pre, bits+8, 66, 4, 1);
- size_t bitLen = addParity(pre, AWIDBits+8, 66, 4, 1);
if (bitLen != 88) return 0;
- //for (uint8_t i = 0; i<3; i++){
- // PrintAndLog("DEBUG: %08X", bytebits_to_byte(AWIDBits+(32*i),32));
- //}
return 1;
}
+static void verify_values(uint8_t *fmtlen, uint32_t *fc, uint32_t *cn){
+ switch (*fmtlen) {
+ case 50:
+ if ((*fc & 0xFFFF) != *fc) {
+ *fc &= 0xFFFF;
+ PrintAndLog("Facility-Code Truncated to 16-bits (AWID50): %u", *fc);
+ }
+ break;
+ case 37:
+ if ((*fc & 0x1FFF) != *fc) {
+ *fc &= 0x1FFF;
+ PrintAndLog("Facility-Code Truncated to 13-bits (AWID37): %u", *fc);
+ }
+ if ((*cn & 0x3FFFF) != *cn) {
+ *cn &= 0x3FFFF;
+ PrintAndLog("Card Number Truncated to 18-bits (AWID37): %u", *cn);
+ }
+ break;
+ case 34:
+ if ((*fc & 0xFF) != *fc) {
+ *fc &= 0xFF;
+ PrintAndLog("Facility-Code Truncated to 8-bits (AWID34): %u", *fc);
+ }
+ if ((*cn & 0xFFFFFF) != *cn) {
+ *cn &= 0xFFFFFF;
+ PrintAndLog("Card Number Truncated to 24-bits (AWID34): %u", *cn);
+ }
+ break;
+ case 26:
+ default:
+ *fmtlen = 26;
+ if ((*fc & 0xFF) != *fc) {
+ *fc &= 0xFF;
+ PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", *fc);
+ }
+ if ((*cn & 0xFFFF) != *cn) {
+ *cn &= 0xFFFF;
+ PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", *cn);
+ }
+ break;
+ }
+}
+
int CmdAWIDSim(const char *Cmd) {
- uint32_t fcode = 0, cnum = 0, fc=0, cn=0;
+ uint32_t fc = 0, cn = 0;
+ uint8_t fmtlen = 0;
uint8_t bits[96];
uint8_t *bs = bits;
size_t size = sizeof(bits);
- memset(bs, 0, size);
+ memset(bs, 0x00, size);
- uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8
+ uint64_t arg1 = ( 10 << 8 ) + 8; // fcHigh = 10, fcLow = 8
uint64_t arg2 = 50; // clk RF/50 invert=0
- if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_awid_sim();
-
- fcode = (fc & 0x000000FF);
- cnum = (cn & 0x0000FFFF);
+ char cmdp = param_getchar(Cmd, 0);
+ if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_awid_sim();
+
+ fmtlen = param_get8(Cmd, 0);
+ fc = param_get32ex(Cmd, 1, 0, 10);
+ cn = param_get32ex(Cmd, 2, 0, 10);
+ if ( !fc || !cn) return usage_lf_awid_sim();
- if (fc!=fcode) PrintAndLog("Facility-Code (%u) truncated to 8-bits: %u", fc, fcode);
- if (cn!=cnum) PrintAndLog("Card number (%u) truncated to 16-bits: %u", cn, cnum);
+ verify_values(&fmtlen, &fc, &cn);
- PrintAndLog("Emulating AWID26 -- FC: %u; CN: %u\n", fcode, cnum);
+ PrintAndLog("Emulating AWID %u -- FC: %u; CN: %u\n", fmtlen, fc, cn);
PrintAndLog("Press pm3-button to abort simulation or run another command");
- if (!getAWIDBits(fc, cn, bs)) {
+ if (!getAWIDBits(fmtlen, fc, cn, bs)) {
PrintAndLog("Error with tag bitstream generation.");
return 1;
}
int CmdAWIDClone(const char *Cmd) {
uint32_t blocks[4] = {T55x7_MODULATION_FSK2a | T55x7_BITRATE_RF_50 | 3<<T55x7_MAXBLOCK_SHIFT, 0, 0, 0};
- uint32_t fc=0,cn=0;
+ uint32_t fc = 0, cn = 0;
+ uint8_t fmtlen = 0;
uint8_t bits[96];
uint8_t *bs=bits;
memset(bs,0,sizeof(bits));
- if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_awid_clone();
+ char cmdp = param_getchar(Cmd, 0);
+ if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_awid_clone();
- if (param_getchar(Cmd, 3) == 'Q' || param_getchar(Cmd, 3) == 'q')
- blocks[0] = T5555_MODULATION_FSK2 | T5555_INVERT_OUTPUT | 50<<T5555_BITRATE_SHIFT | 3<<T5555_MAXBLOCK_SHIFT;
+ fmtlen = param_get8(Cmd, 0);
+ fc = param_get32ex(Cmd, 1, 0, 10);
+ cn = param_get32ex(Cmd, 2, 0, 10);
- if ((fc & 0xFF) != fc) {
- fc &= 0xFF;
- PrintAndLog("Facility-Code Truncated to 8-bits (AWID26): %u", fc);
- }
-
- if ((cn & 0xFFFF) != cn) {
- cn &= 0xFFFF;
- PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn);
- }
+ if ( !fc || !cn) return usage_lf_awid_clone();
- if ( !getAWIDBits(fc, cn, bs)) {
+ if (param_getchar(Cmd, 3) == 'Q' || param_getchar(Cmd, 3) == 'q')
+ //t5555 (Q5) BITRATE = (RF-2)/2 (iceman)
+ blocks[0] = T5555_MODULATION_FSK2 | T5555_INVERT_OUTPUT | ((50-2)>>1) << T5555_BITRATE_SHIFT | 3<<T5555_MAXBLOCK_SHIFT;
+
+ verify_values(&fmtlen, &fc, &cn);
+
+ if ( !getAWIDBits(fmtlen, fc, cn, bs)) {
PrintAndLog("Error with tag bitstream generation.");
return 1;
}
blocks[2] = bytebits_to_byte(bs+32,32);
blocks[3] = bytebits_to_byte(bs+64,32);
- PrintAndLog("Preparing to clone AWID26 to T55x7 with FC: %u, CN: %u",
- fc, cn);
+ PrintAndLog("Preparing to clone AWID %u to T55x7 with FC: %u, CN: %u", fmtlen, fc, cn);
PrintAndLog("Blk | Data ");
PrintAndLog("----+------------");
PrintAndLog(" 00 | 0x%08x", blocks[0]);
c.arg[1] = i;
clearCommandBuffer();
SendCommand(&c);
- if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){
+ if (!WaitForResponseTimeout(CMD_ACK, &resp, T55XX_WRITE_TIMEOUT)){
PrintAndLog("Error occurred, device did not respond during write operation.");
return -1;
}
return 0;
}
+int CmdAWIDBrute(const char *Cmd){
+
+ bool errors = false;
+ uint32_t fc = 0, cn = 0, delay = 1000;
+ uint8_t fmtlen = 0;
+ uint8_t bits[96];
+ uint8_t *bs = bits;
+ size_t size = sizeof(bits);
+ memset(bs, 0x00, size);
+ uint8_t cmdp = 0;
+
+ while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
+ switch(param_getchar(Cmd, cmdp)) {
+ case 'h':
+ case 'H':
+ return usage_lf_awid_brute();
+ case 'f':
+ case 'F':
+ fc = param_get32ex(Cmd ,cmdp+1, 0, 10);
+ if ( !fc )
+ errors = true;
+ cmdp += 2;
+ break;
+ case 'd':
+ case 'D':
+ // delay between attemps, defaults to 1000ms.
+ delay = param_get32ex(Cmd, cmdp+1, 1000, 10);
+ cmdp += 2;
+ break;
+ case 'c':
+ case 'C':
+ cn = param_get32ex(Cmd, cmdp+1, 0, 10);
+ // truncate cardnumber.
+ cn &= 0xFFFF;
+ cmdp += 2;
+ break;
+ case 'a':
+ case 'A':
+ fmtlen = param_get8(Cmd, cmdp+1);
+ cmdp += 2;
+ break;
+ default:
+ PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+ errors = true;
+ break;
+ }
+ }
+ if ( fc == 0 )errors = true;
+ if ( errors ) return usage_lf_awid_brute();
+
+ // limit fc according to selected format
+ switch(fmtlen) {
+ case 50:
+ if ((fc & 0xFFFF) != fc) {
+ fc &= 0xFFFF;
+ PrintAndLog("Facility-code truncated to 16-bits (AWID50): %u", fc);
+ }
+ break;
+ default:
+ if ((fc & 0xFF) != fc) {
+ fc &= 0xFF;
+ PrintAndLog("Facility-code truncated to 8-bits (AWID26): %u", fc);
+ }
+ break;
+ }
+
+ PrintAndLog("Bruteforceing AWID %d Reader", fmtlen);
+ PrintAndLog("Press pm3-button to abort simulation or press key");
+
+ uint16_t up = cn;
+ uint16_t down = cn;
+
+ for (;;){
+
+ if ( offline ) {
+ printf("Device offline\n");
+ return 2;
+ }
+ if (ukbhit()) {
+ PrintAndLog("aborted via keyboard!");
+ return sendPing();
+ }
+
+ // Do one up
+ if ( up < 0xFFFF )
+ if ( !sendTry(fmtlen, fc, up++, delay, bs, size)) return 1;
+
+ // Do one down (if cardnumber is given)
+ if ( cn > 1 )
+ if ( down > 1 )
+ if ( !sendTry(fmtlen, fc, --down, delay, bs, size)) return 1;
+ }
+ return 0;
+}
+
static command_t CommandTable[] = {
{"help", CmdHelp, 1, "This help"},
- {"fskdemod", CmdAWIDDemodFSK, 0, "['1'] Realtime AWID FSK demodulator (option '1' for one tag only)"},
- {"sim", CmdAWIDSim, 0, "<Facility-Code> <Card Number> -- AWID tag simulator"},
- {"clone", CmdAWIDClone, 0, "<Facility-Code> <Card Number> <Q5> -- Clone AWID to T55x7"},
+ {"fskdemod", CmdAWIDDemodFSK, 0, "Realtime AWID FSK demodulator"},
+ {"read", CmdAWIDRead, 0, "Attempt to read and extract tag data"},
+ {"sim", CmdAWIDSim, 0, "AWID tag simulator"},
+ {"clone", CmdAWIDClone, 0, "Clone AWID to T55x7"},
+ {"brute", CmdAWIDBrute, 0, "Bruteforce card number against reader"},
{NULL, NULL, 0, NULL}
};
int CmdLFAWID(const char *Cmd) {
+ clearCommandBuffer();
CmdsParse(CommandTable, Cmd);
return 0;
}
projects / proxmark3-svn / blobdiff