ADD: `analyse nuid` - generates NUID 4byte from a UID 7byte. Mifare Classic Ev1...

[proxmark3-svn] / client / cmdlfguard.c

diff --git a/client/cmdlfguard.c b/client/cmdlfguard.c
index 7f58e99484aca889d2f1291c95f0826d7ba66300..66cc396b0fc149fc94ac0e6cb9cb850989f4fb67 100644 (file)
--- a/client/cmdlfguard.c
+++ b/client/cmdlfguard.c
@@ -6,8 +6,7 @@
 //-----------------------------------------------------------------------------
 // Low frequency Farpoint / Pyramid tag commands
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 // Low frequency Farpoint / Pyramid tag commands
 //-----------------------------------------------------------------------------

-#include <string.h>
-#include <inttypes.h>
+

 #include "cmdlfguard.h"
 static int CmdHelp(const char *Cmd);
 
 #include "cmdlfguard.h"
 static int CmdHelp(const char *Cmd);
 


@@ -16,12 +15,13 @@ int usage_lf_guard_clone(void){
        PrintAndLog("The facility-code is 8-bit and the card number is 16-bit.  Larger values are truncated. ");
        PrintAndLog("Currently work only on 26bit");
        PrintAndLog("");
        PrintAndLog("The facility-code is 8-bit and the card number is 16-bit.  Larger values are truncated. ");
        PrintAndLog("Currently work only on 26bit");
        PrintAndLog("");

-       PrintAndLog("Usage: lf guard clone <Facility-Code> <Card-Number>");
+       PrintAndLog("Usage: lf guard clone <format> <Facility-Code> <Card-Number>");

        PrintAndLog("Options :");
        PrintAndLog("Options :");

+       PrintAndLog("         <format> :  format length 26|32|36|40");  

        PrintAndLog("  <Facility-Code> :  8-bit value facility code");
        PrintAndLog("  <Card Number>   : 16-bit value card number");
        PrintAndLog("");
        PrintAndLog("  <Facility-Code> :  8-bit value facility code");
        PrintAndLog("  <Card Number>   : 16-bit value card number");
        PrintAndLog("");

-       PrintAndLog("Sample  : lf guard clone 123 11223");
+       PrintAndLog("Sample  : lf guard clone 26 123 11223");

        return 0;
 }
 
        return 0;
 }
 


@@ -31,89 +31,114 @@ int usage_lf_guard_sim(void) {
        PrintAndLog("The facility-code is 8-bit and the card number is 16-bit.  Larger values are truncated.");
        PrintAndLog("Currently work only on 26bit");
        PrintAndLog("");
        PrintAndLog("The facility-code is 8-bit and the card number is 16-bit.  Larger values are truncated.");
        PrintAndLog("Currently work only on 26bit");
        PrintAndLog("");

-       PrintAndLog("Usage:  lf guard sim <Card-Number>");
+       PrintAndLog("Usage:  lf guard sim <format> <Facility-Code> <Card-Number>");

        PrintAndLog("Options :");
        PrintAndLog("Options :");

+       PrintAndLog("         <format> :  format length 26|32|36|40");  

        PrintAndLog("  <Facility-Code> :  8-bit value facility code");
        PrintAndLog("  <Card Number>   : 16-bit value card number");
        PrintAndLog("");
        PrintAndLog("  <Facility-Code> :  8-bit value facility code");
        PrintAndLog("  <Card Number>   : 16-bit value card number");
        PrintAndLog("");

-       PrintAndLog("Sample  : lf guard sim 123 11223");
+       PrintAndLog("Sample  : lf guard sim 26 123 11223");

        return 0;
 }
 
        return 0;
 }
 

-

 // Works for 26bits.
 // Works for 26bits.

-int GetGuardBits(uint32_t fc, uint32_t cn, uint8_t *guardBits) {
+int GetGuardBits(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint8_t *guardBits) {

   
   

-       // Intializes random number generator
-       time_t t;
-       srand((unsigned) time(&t));
-
+       uint8_t xorKey = 0x66;
+       uint8_t i;

        uint8_t pre[96];
        uint8_t pre[96];

+       uint8_t rawbytes[12];

        memset(pre, 0x00, sizeof(pre));
        memset(pre, 0x00, sizeof(pre));

+       memset(rawbytes, 0x00, sizeof(rawbytes));       
+
+       // add format length (decimal)
+       switch (fmtlen) {
+               case 32: {
+                       rawbytes[1] = (32 << 2);
+                       
+                       break;
+               }
+               case 36: {
+                       // FC = ((ByteStream[3] & 0x7F)<<7) | (ByteStream[4]>>1);
+                       // Card = ((ByteStream[4]&1)<<19) | (ByteStream[5]<<11) | (ByteStream[6]<<3) | (ByteStream[7]>>5);
+                       rawbytes[1] = (36 << 2);
+                       // Get 26 wiegand from FacilityCode, CardNumber 
+                       uint8_t wiegand[34];
+                       memset(wiegand, 0x00, sizeof(wiegand));
+                       num_to_bytebits(fc, 8, wiegand);
+                       num_to_bytebits(cn, 26, wiegand+8);
+
+                       // add wiegand parity bits (dest, source, len)
+                       wiegand_add_parity(pre, wiegand, 34);                   
+                       break;
+               }
+               case 40: {
+                       rawbytes[1] = (40 << 2);
+                       break;
+               }
+               case 26:
+               default: {
+                       rawbytes[1] = (26 << 2);
+                       // Get 26 wiegand from FacilityCode, CardNumber 
+                       uint8_t wiegand[24];
+                       memset(wiegand, 0x00, sizeof(wiegand));
+                       num_to_bytebits(fc, 8, wiegand);
+                       num_to_bytebits(cn, 16, wiegand+8);
+
+                       // add wiegand parity bits (dest, source, len)
+                       wiegand_add_parity(pre, wiegand, 24);
+                       break;
+               }
+       }
+       // 2bit checksum, unknown today, 
+       // these two bits are the last ones of rawbyte[1], hence the LSHIFT above.

 
 

-       uint8_t index = 8;

        
        

-       // preamble  6bits
-       pre[0] = 1;
-       pre[1] = 1;
-       pre[2] = 1;
-       pre[3] = 1;
-       pre[4] = 1;
-       //pre[5] = 0;
-
-       // add xor key
-       uint8_t xorKey = rand() % 0xFF;
-       num_to_bytebits(xorKey, 8, pre+index);
-       index += 8;
+       // xor key
+       rawbytes[0] = xorKey;

        
        

-       // add format length
-       // len | hex | bin  wiegand pos fc/cn   
-       //  26 | 1A  | 0001 1010
-       num_to_bytebits(26, 8, pre+index);
-       //  36 | 24  | 0010 0100
-       //num_to_bytebits(36, 8, pre+index);
-       //  40 | 28  | 0010 1000
-       //num_to_bytebits(40, 8, pre+index);
-
-       index += 8;
+       rawbytes[2] = 1;
+       rawbytes[3] = 0;

        
        

-       // 2bit checksum
-       // unknown today.
-       index += 2;
+       // add wiegand to rawbytes
+       for (i = 0; i < 4; ++i)
+               rawbytes[i+4] = bytebits_to_byte( pre + (i*8), 8);

        
        

-       // Get 26 wiegand from FacilityCode, CardNumber 
-       uint8_t wiegand[24];
-       memset(wiegand, 0x00, sizeof(wiegand));
-       num_to_bytebits(fc, 8, wiegand);
-       num_to_bytebits(cn, 16, wiegand+8);
-
-       // add wiegand parity bits (dest, source, len)
-       wiegand_add_parity(pre+index, wiegand, 24);
-
-       uint8_t tmp = 0, i = 0;
-       for (i = 2; i < 12; ++i) {
-               // // xor all bytes
-               // tmp = xorKey ^ bytebits_to_byte(pre + (i*8), 8);
-               
-               // // copy to out..
-               // num_to_bytebits(tmp, 8, pre + (i*8) );
-       }
-
-       // add spacer bit 0 every 5
+       if (g_debugMode) printf(" WIE | %s\n", sprint_hex(rawbytes, sizeof(rawbytes))); 

        
        

-       // swap nibbles

        
        

+       // XOR (only works on wiegand stuff)
+       for (i = 1; i < 12; ++i)
+               rawbytes[i] ^= xorKey ;
+       
+       if (g_debugMode) printf(" XOR | %s \n", sprint_hex(rawbytes, sizeof(rawbytes)));
+
+       // convert rawbytes to bits in pre
+       for (i = 0; i < 12; ++i)
+               num_to_bytebitsLSBF( rawbytes[i], 8, pre + (i*8));
+
+       if (g_debugMode) printf("\n Raw | %s \n", sprint_hex(rawbytes, sizeof(rawbytes)));
+       if (g_debugMode) printf(" Raw | %s\n", sprint_bin(pre, 64) );

        
        

-       // copy to outarray
-       memcpy(guardBits, pre, sizeof(pre));
+       // add spacer bit 0 every 4 bits, starting with index 0,
+       // 12 bytes, 24 nibbles.  24+1 extra bites. 3bytes.  ie 9bytes | 1byte xorkey, 8bytes rawdata (64bits, should be enough for a 40bit wiegand)
+       addParity(pre, guardBits+6, 64, 5, 3);
+
+       // preamble
+       guardBits[0] = 1;
+       guardBits[1] = 1;
+       guardBits[2] = 1;
+       guardBits[3] = 1;
+       guardBits[4] = 1;
+       guardBits[5] = 0;

        
        

-       printf(" | %s\n", sprint_bin(guardBits, 96) );
+       if (g_debugMode) printf(" FIN | %s\n", sprint_bin(guardBits, 96) );

        return 1;
 }
 
 int CmdGuardRead(const char *Cmd) {
        CmdLFRead("s");
        return 1;
 }
 
 int CmdGuardRead(const char *Cmd) {
        CmdLFRead("s");

-       getSamples("30000",false);
+       getSamples("12000", TRUE);

        return CmdG_Prox_II_Demod("");
 }
 
        return CmdG_Prox_II_Demod("");
 }
 


@@ -122,23 +147,25 @@ int CmdGuardClone(const char *Cmd) {
        char cmdp = param_getchar(Cmd, 0);
        if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_guard_clone();
 
        char cmdp = param_getchar(Cmd, 0);
        if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_guard_clone();
 

-       uint32_t facilitycode=0, cardnumber=0, fc = 0, cn = 0;
+       uint32_t facilitycode = 0, cardnumber = 0, fc = 0, cn = 0, fmtlen = 0;

        uint8_t i;
        uint8_t bs[96];
        memset(bs, 0x00, sizeof(bs));
        
        //GuardProxII - compat mode, ASK/Biphase,  data rate 64, 3 data blocks
        uint8_t i;
        uint8_t bs[96];
        memset(bs, 0x00, sizeof(bs));
        
        //GuardProxII - compat mode, ASK/Biphase,  data rate 64, 3 data blocks

-       uint32_t blocks[5] = {T55x7_MODULATION_BIPHASE | T55x7_BITRATE_RF_64 | 3<<T55x7_MAXBLOCK_SHIFT, 0, 0, 0, 0};
+       uint32_t blocks[5] = {T55x7_MODULATION_BIPHASE | T55x7_BITRATE_RF_64 | 3 << T55x7_MAXBLOCK_SHIFT, 0, 0, 0, 0};

        
        

-//     if (param_getchar(Cmd, 3) == 'Q' || param_getchar(Cmd, 3) == 'q')
-//             blocks[0] = T5555_MODULATION_FSK2 | 50<<T5555_BITRATE_SHIFT | 4<<T5555_MAXBLOCK_SHIFT;
+       if (param_getchar(Cmd, 3) == 'Q' || param_getchar(Cmd, 3) == 'q')
+               //t5555 (Q5) BITRATE = (RF-2)/2 (iceman)
+               blocks[0] = T5555_MODULATION_FSK2 | ((50-2)>>1) << T5555_BITRATE_SHIFT | 3 << T5555_MAXBLOCK_SHIFT;

 
 

-       if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_guard_clone();
+       if (sscanf(Cmd, "%u %u %u", &fmtlen, &fc, &cn ) != 3) return usage_lf_guard_clone();

 
 

+       fmtlen &= 0x7f;

        facilitycode = (fc & 0x000000FF);
        cardnumber = (cn & 0x0000FFFF);
        
        facilitycode = (fc & 0x000000FF);
        cardnumber = (cn & 0x0000FFFF);
        

-       if ( !GetGuardBits(facilitycode, cardnumber, bs)) {
+       if ( !GetGuardBits(fmtlen, facilitycode, cardnumber, bs)) {

                PrintAndLog("Error with tag bitstream generation.");
                return 1;
        }       
                PrintAndLog("Error with tag bitstream generation.");
                return 1;
        }       


@@ -151,21 +178,21 @@ int CmdGuardClone(const char *Cmd) {
        PrintAndLog("Blk | Data ");
        PrintAndLog("----+------------");
        for ( i = 0; i<4; ++i )
        PrintAndLog("Blk | Data ");
        PrintAndLog("----+------------");
        for ( i = 0; i<4; ++i )

-               PrintAndLog(" %02d | %08x", i, blocks[i]);
-
-       // UsbCommand resp;
-       // UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};
-
-       // for ( i = 0; i<5; ++i ) {
-               // c.arg[0] = blocks[i];
-               // c.arg[1] = i;
-               // clearCommandBuffer();
-               // SendCommand(&c);
-               // if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){
-                       // PrintAndLog("Error occurred, device did not respond during write operation.");
-                       // return -1;
-               // }
-       // }
+               PrintAndLog(" %02d | 0x%08x", i, blocks[i]);
+
+       UsbCommand resp;
+       UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};
+
+       for ( i = 0; i<4; ++i ) {
+               c.arg[0] = blocks[i];
+               c.arg[1] = i;
+               clearCommandBuffer();
+               SendCommand(&c);
+               if (!WaitForResponseTimeout(CMD_ACK, &resp, T55XX_WRITE_TIMEOUT)){
+                       PrintAndLog("Error occurred, device did not respond during write operation.");
+                       return -1;
+               }
+       }

     return 0;
 }
 
     return 0;
 }
 


@@ -174,31 +201,38 @@ int CmdGuardSim(const char *Cmd) {
        char cmdp = param_getchar(Cmd, 0);
        if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_guard_sim();
 
        char cmdp = param_getchar(Cmd, 0);
        if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_guard_sim();
 

-       uint32_t facilitycode = 0, cardnumber = 0, fc = 0, cn = 0;
+       uint32_t facilitycode = 0, cardnumber = 0, fc = 0, cn = 0, fmtlen = 0;
+       uint8_t clock = 64, encoding = 2, separator = 0, invert = 0;

        
        uint8_t bs[96];
        
        uint8_t bs[96];

-       size_t size = sizeof(bs);
-       memset(bs, 0x00, size);
+       memset(bs, 0x00, sizeof(bs));

        
        

-       // Pyramid uses:  ASK Biphase, clk: 32, invert: 0
-       uint64_t arg1, arg2;
-       arg1 = (10 << 8) + 8;
-       arg2 = 32 | 0;
-
-       if (sscanf(Cmd, "%u %u", &fc, &cn ) != 2) return usage_lf_guard_sim();
+       if (sscanf(Cmd, "%u %u %u", &fmtlen, &fc, &cn ) != 3) return usage_lf_guard_sim();

 
 

+       fmtlen &= 0x7F;

        facilitycode = (fc & 0x000000FF);
        cardnumber = (cn & 0x0000FFFF);
        
        facilitycode = (fc & 0x000000FF);
        cardnumber = (cn & 0x0000FFFF);
        

-       if ( !GetGuardBits(facilitycode, cardnumber, bs)) {
+       if ( !GetGuardBits(fmtlen, facilitycode, cardnumber, bs)) {

                PrintAndLog("Error with tag bitstream generation.");
                return 1;
        }       
 
        PrintAndLog("Simulating Guardall - Facility Code: %u, CardNumber: %u", facilitycode, cardnumber );
                PrintAndLog("Error with tag bitstream generation.");
                return 1;
        }       
 
        PrintAndLog("Simulating Guardall - Facility Code: %u, CardNumber: %u", facilitycode, cardnumber );

-       
+
+       // Guard uses:  clk: 64, invert: 0, encoding: 2 (ASK Biphase)
+       uint64_t arg1, arg2;
+       arg1 = (clock << 8) | encoding;
+       arg2 = (invert << 8) | separator;
+
+       uint8_t rawbytes[12];
+       size_t size = sizeof(rawbytes);
+       for (uint8_t i=0; i < size; ++i){
+               rawbytes[i] =  bytebits_to_byte( bs + (i*8), 8);
+       }
+

        UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}};
        UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}};

-       memcpy(c.d.asBytes, bs, size);
+       memcpy(c.d.asBytes, rawbytes, size );

        clearCommandBuffer();
        SendCommand(&c);
        return 0;
        clearCommandBuffer();
        SendCommand(&c);
        return 0;


@@ -207,8 +241,8 @@ int CmdGuardSim(const char *Cmd) {
 static command_t CommandTable[] = {
     {"help",   CmdHelp,                1, "This help"},
        {"read",        CmdGuardRead,  0, "Attempt to read and extract tag data"},
 static command_t CommandTable[] = {
     {"help",   CmdHelp,                1, "This help"},
        {"read",        CmdGuardRead,  0, "Attempt to read and extract tag data"},

-//     {"clone",       CmdGuardClone, 0, "<Facility-Code> <Card Number>  clone Guardall tag"},
-//     {"sim",         CmdGuardSim,   0, "<Facility-Code> <Card Number>  simulate Guardall tag"},
+       {"clone",       CmdGuardClone, 0, "<Facility-Code> <Card Number>  clone Guardall tag"},
+       {"sim",         CmdGuardSim,   0, "<Facility-Code> <Card Number>  simulate Guardall tag"},

     {NULL, NULL, 0, NULL}
 };
 
     {NULL, NULL, 0, NULL}
 };