syntax sugar

[proxmark3-svn] / client / cmdlfguard.c

diff --git a/client/cmdlfguard.c b/client/cmdlfguard.c
index 05975eea66bc431fc013296a0b323651de699ac1..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;
 }
 


@@ -31,57 +31,72 @@ 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 = rand() % 0xFF;
-       uint8_t xorKey = 0x6b;
+       uint8_t xorKey = 0x66;

        uint8_t i;
        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));       

 
 

-       // 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);
-
-       // lets start. 12bytes of data to be produced.
-       uint8_t rawbytes[12];
-       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.

 
 

+       

        // xor key
        rawbytes[0] = xorKey;
        // xor key
        rawbytes[0] = xorKey;

-
-       // add format length (decimal)
-       // len | hex | bin
-       //  26 | 1A  | 0001 1010
-       rawbytes[1] = (26 << 2);
-       //  36 | 24  | 0010 0100
-       //rawbytes[1] = (36 << 2);
-       //  40 | 28  | 0010 1000
-       //rawbytes[1] = (40 << 2);

        
        

-       // 2bit checksum, unknown today, 
-       // these two bits are the last ones of rawbyte[1], hence the LSHIFT above.

        rawbytes[2] = 1;
        rawbytes[3] = 0;
        
        rawbytes[2] = 1;
        rawbytes[3] = 0;
        


@@ -91,6 +106,7 @@ int GetGuardBits(uint32_t fc, uint32_t cn, uint8_t *guardBits) {
        
        if (g_debugMode) printf(" WIE | %s\n", sprint_hex(rawbytes, sizeof(rawbytes))); 
        
        
        if (g_debugMode) printf(" WIE | %s\n", sprint_hex(rawbytes, sizeof(rawbytes))); 
        

+       

        // XOR (only works on wiegand stuff)
        for (i = 1; i < 12; ++i)
                rawbytes[i] ^= xorKey ;
        // XOR (only works on wiegand stuff)
        for (i = 1; i < 12; ++i)
                rawbytes[i] ^= xorKey ;


@@ -122,7 +138,7 @@ int GetGuardBits(uint32_t fc, uint32_t cn, uint8_t *guardBits) {
 
 int CmdGuardRead(const char *Cmd) {
        CmdLFRead("s");
 
 int CmdGuardRead(const char *Cmd) {
        CmdLFRead("s");

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

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


@@ -131,23 +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;
        }       


@@ -160,7 +178,7 @@ 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]);
+               PrintAndLog(" %02d | 0x%08x", i, blocks[i]);

 
        UsbCommand resp;
        UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};
 
        UsbCommand resp;
        UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};


@@ -170,7 +188,7 @@ int CmdGuardClone(const char *Cmd) {
                c.arg[1] = i;
                clearCommandBuffer();
                SendCommand(&c);
                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;
                }
                        PrintAndLog("Error occurred, device did not respond during write operation.");
                        return -1;
                }


@@ -183,18 +201,19 @@ 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];
        memset(bs, 0x00, sizeof(bs));
        
        uint8_t clock = 64, encoding = 2, separator = 0, invert = 0;
        
        uint8_t bs[96];
        memset(bs, 0x00, sizeof(bs));
        

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