FIX: coverity scan 133859 structually dead code, looks like this is a rest from...

[proxmark3-svn] / client / cmdlfawid.c

diff --git a/client/cmdlfawid.c b/client/cmdlfawid.c
index 4a2001391851e0bffe26011360aea17ef7d7df32..cd494dbbd41e971c9cace20f520094680fd092a4 100644 (file)
--- a/client/cmdlfawid.c
+++ b/client/cmdlfawid.c
@@ -24,58 +24,69 @@
 static int CmdHelp(const char *Cmd);
 
 int usage_lf_awid_fskdemod(void) {
 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("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("");

-       PrintAndLog("Usage:  lf awid fskdemod ['1']");
+       PrintAndLog("Usage:  lf awid fskdemod [h] [1]");

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

-       PrintAndLog("  1 : (optional) stop after reading a single card");
+       PrintAndLog("      h :  This help");    
+       PrintAndLog("      1 : (optional) stop after reading a single card");

        PrintAndLog("");
        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) {
        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("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("");

-       PrintAndLog("Usage:  lf awid sim <Facility-Code> <Card-Number>");
+       PrintAndLog("Usage:  lf awid sim [h] <format> <facility-code> <card-number>");

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

-       PrintAndLog("  <Facility-Code> :  8-bit value AWID facility code");
-       PrintAndLog("  <Card Number>   : 16-bit value AWID card number");
+       PrintAndLog("                h :  This help");  
+       PrintAndLog("         <format> :  format length 26|50");
+       PrintAndLog("  <facility-code> :  8|16bit value facility code");
+       PrintAndLog("    <card number> :  16|32-bit value card number");

        PrintAndLog("");
        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) {
        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("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("");

-       PrintAndLog("Usage:  lf awid clone <Facility-Code> <Card-Number>");
+       PrintAndLog("Usage:  lf awid clone [h] <format> <facility-code> <card-number> [Q5]");

        PrintAndLog("Options :");
        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("                h :  This help");  
+       PrintAndLog("         <format> :  format length 26|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("");

-       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){
        return 0;
 }
 
 int usage_lf_awid_brute(void){

-       PrintAndLog("Enables bruteforce of AWID26 reader with specified facility-code.");
-       PrintAndLog("Per AWID26 format, the facility-code (FC) is 8-bit and the card number is 16-bit.");
+       PrintAndLog("Enables bruteforce of AWID reader with specified facility-code.");

        PrintAndLog("This is a incremental attack against reader.");
        PrintAndLog("");
        PrintAndLog("This is a incremental attack against reader.");
        PrintAndLog("");

-       PrintAndLog("Usage:  lf awid brute <Facility-Code>");
+       PrintAndLog("Usage:  lf awid brute [h] <format> <facility-code>");

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

-       PrintAndLog("  <Facility-Code> :  8-bit value AWID facility code");
+       PrintAndLog("                h :  This help");
+       PrintAndLog("         <format> :  format length 26|50");
+       PrintAndLog("  <facility-code> :  8|16bit value facility code");

        PrintAndLog("");
        PrintAndLog("");

-       PrintAndLog("Sample  : lf awid brute 224");
+       PrintAndLog("Samples");
+       PrintAndLog("       lf awid brute 26 224");
+       PrintAndLog("       lf awid brute 50 2001");

        return 0;
 }
 
        return 0;
 }
 


@@ -91,25 +102,40 @@ int CmdAWIDDemodFSK(const char *Cmd) {
 }
 
 //refactored by marshmellow
 }
 
 //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));
        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);
-       size_t bitLen = addParity(pre, AWIDBits+8, 66, 4, 1);
+       // add formatlength
+       num_to_bytebits(fmtlen, 8, pre);
+       
+       // add facilitycode, cardnumber and wiegand parity bits
+       if ( fmtlen == 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));
+       } else {
+               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));
+       }
+       
+       // add AWID 4bit parity 
+       size_t bitLen = addParity(pre, bits+8, 66, 4, 1);

 
        if (bitLen != 88) return 0;
        return 1;
 }
 
 int CmdAWIDSim(const char *Cmd) {
 
        if (bitLen != 88) return 0;
        return 1;
 }
 
 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);
        uint8_t bits[96];
        uint8_t *bs = bits;
        size_t size = sizeof(bits);


@@ -118,18 +144,39 @@ int CmdAWIDSim(const char *Cmd) {
        uint64_t arg1 = ( 10 << 8 ) + 8; // fcHigh = 10, fcLow = 8
        uint64_t arg2 = 50; // clk RF/50 invert=0
   
        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();

        
        

-       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);
+       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();
+       
+       switch(fmtlen) {
+               case 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;
+               case 50:
+                       if ((fc & 0xFFFF) != fc) {
+                               fc &= 0xFFFF;
+                               PrintAndLog("Facility-Code Truncated to 16-bits (AWID50): %u", fc);
+                       }
+                       break;
+               default: break;
+       }

        
        

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


@@ -146,27 +193,47 @@ int CmdAWIDSim(const char *Cmd) {
 
 int CmdAWIDClone(const char *Cmd) {
        uint32_t blocks[4] = {T55x7_MODULATION_FSK2a | T55x7_BITRATE_RF_50 | 3<<T55x7_MAXBLOCK_SHIFT, 0, 0, 0};
 
 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));
        
        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 ( !fc || !cn) return usage_lf_awid_clone();
+       
+       switch(fmtlen) {
+               case 50:
+                       if ((fc & 0xFFFF) != fc) {
+                               fc &= 0xFFFF;
+                               PrintAndLog("Facility-Code Truncated to 16-bits (AWID50): %u", fc);
+                       }
+                       break;
+               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);
+                       if ((cn & 0xFFFF) != cn) {
+                               cn &= 0xFFFF;
+                               PrintAndLog("Card Number Truncated to 16-bits (AWID26): %u", cn);
+                       }
+                       break;

        }
        
        }
        

-       if ( !getAWIDBits(fc, cn, bs)) {
+       if (param_getchar(Cmd, 4) == 'Q' || param_getchar(Cmd, 4) == 'q')
+               //t5555 (Q5) BITRATE = (RF-2)/2 (iceman)
+               blocks[0] = T5555_MODULATION_FSK2 | T5555_INVERT_OUTPUT | 50<<T5555_BITRATE_SHIFT | 3<<T5555_MAXBLOCK_SHIFT;
+
+       if ( !getAWIDBits(fmtlen, fc, cn, bs)) {

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


@@ -175,8 +242,7 @@ int CmdAWIDClone(const char *Cmd) {
        blocks[2] = bytebits_to_byte(bs+32,32);
        blocks[3] = bytebits_to_byte(bs+64,32);
 
        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]);
        PrintAndLog("Blk | Data ");
        PrintAndLog("----+------------");
        PrintAndLog(" 00 | 0x%08x", blocks[0]);


@@ -192,7 +258,7 @@ int CmdAWIDClone(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, 1500)){

                        PrintAndLog("Error occurred, device did not respond during write operation.");
                        return -1;
                }
                        PrintAndLog("Error occurred, device did not respond during write operation.");
                        return -1;
                }


@@ -202,19 +268,36 @@ int CmdAWIDClone(const char *Cmd) {
 
 int CmdAWIDBrute(const char *Cmd){
        
 
 int CmdAWIDBrute(const char *Cmd){
        

-       uint8_t fc = 0x00;
+       uint32_t fc = 0x00;
+       uint8_t fmtlen = 0;

        uint8_t bits[96];
        uint8_t *bs = bits;
        size_t size = sizeof(bits);
        memset(bs, 0x00, size);
 
        char cmdp = param_getchar(Cmd, 0);
        uint8_t bits[96];
        uint8_t *bs = bits;
        size_t size = sizeof(bits);
        memset(bs, 0x00, size);
 
        char cmdp = param_getchar(Cmd, 0);

-       if (strlen(Cmd) > 3 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_awid_brute();
+       if (strlen(Cmd) > 4 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_awid_brute();

        
        

-       fc =  param_get8(Cmd, 0);
-       if ( fc == 0) return usage_lf_awid_brute();
+       fmtlen = param_get8(Cmd, 0);
+       fc =  param_get32ex(Cmd, 1, 0, 10);
+       if ( !fc ) return usage_lf_awid_brute();

        
        

-       PrintAndLog("Bruteforceing AWID26 Reader");
+       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 run another command");
 
        uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8
        PrintAndLog("Press pm3-button to abort simulation or run another command");
 
        uint64_t arg1 = (10<<8) + 8; // fcHigh = 10, fcLow = 8


@@ -233,7 +316,7 @@ int CmdAWIDBrute(const char *Cmd){
                        return 1;
                }
                        
                        return 1;
                }
                        

-               (void)getAWIDBits(fc, cn, bs);
+               (void)getAWIDBits(fmtlen, fc, cn, bs);

                memcpy(c.d.asBytes, bs, size);
                clearCommandBuffer();
                SendCommand(&c);
                memcpy(c.d.asBytes, bs, size);
                clearCommandBuffer();
                SendCommand(&c);


@@ -255,6 +338,7 @@ static command_t CommandTable[] = {
 };
 
 int CmdLFAWID(const char *Cmd) {
 };
 
 int CmdLFAWID(const char *Cmd) {

+       clearCommandBuffer();

        CmdsParse(CommandTable, Cmd);
        return 0;
 }
        CmdsParse(CommandTable, Cmd);
        return 0;
 }