prepare to update the LF T55XX commands

[proxmark3-svn] / client / cmdhficlass.c

diff --git a/client/cmdhficlass.c b/client/cmdhficlass.c
index 583d518e6d4a3e85a1198d3015303bc1dbf24674..03b39021e02991a51db554a6a571d767298b5220 100644 (file)
--- a/client/cmdhficlass.c
+++ b/client/cmdhficlass.c
@@ -16,7 +16,6 @@
 #include <sys/stat.h>
 #include "iso14443crc.h" // Can also be used for iClass, using 0xE012 as CRC-type
 #include "data.h"
 #include <sys/stat.h>
 #include "iso14443crc.h" // Can also be used for iClass, using 0xE012 as CRC-type
 #include "data.h"

-//#include "proxusb.h"

 #include "proxmark3.h"
 #include "ui.h"
 #include "cmdparser.h"
 #include "proxmark3.h"
 #include "ui.h"
 #include "cmdparser.h"


@@ -44,150 +43,7 @@ int xorbits_8(uint8_t val)
 
 int CmdHFiClassList(const char *Cmd)
 {
 
 int CmdHFiClassList(const char *Cmd)
 {

-       bool ShowWaitCycles = false;
-       char param = param_getchar(Cmd, 0);
-       
-       if (param != 0) {
-               PrintAndLog("List data in trace buffer.");
-               PrintAndLog("Usage:  hf iclass list");
-               PrintAndLog("h - help");
-               PrintAndLog("sample: hf iclass list");
-               return 0;
-       }
-
-// for the time being. Need better Bigbuf handling.    
-#define TRACE_SIZE 3000        
-
-       uint8_t trace[TRACE_SIZE];
-       GetFromBigBuf(trace, TRACE_SIZE, 0);
-       WaitForResponse(CMD_ACK, NULL);
-
-       PrintAndLog("Recorded Activity");
-       PrintAndLog("");
-       PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer");
-       PrintAndLog("All times are in carrier periods (1/13.56Mhz)");
-       PrintAndLog("");
-       PrintAndLog("     Start |       End | Src | Data (! denotes parity error)                                   | CRC ");
-       PrintAndLog("-----------|-----------|-----|-----------------------------------------------------------------------");
-
-       uint16_t tracepos = 0;
-       uint16_t duration;
-       uint16_t data_len;
-       uint16_t parity_len;
-       bool isResponse;
-       uint32_t timestamp;
-       uint32_t first_timestamp;
-       uint32_t EndOfTransmissionTimestamp;
-       
-       for (;;) {
-
-               if(tracepos >= TRACE_SIZE) {
-                       break;
-               }
-
-               timestamp = *((uint32_t *)(trace + tracepos));
-               if(tracepos == 0) {
-                       first_timestamp = timestamp;
-               }
-
-               // Break and stick with current result if buffer was not completely full
-               if (timestamp == 0x44444444) break; 
-
-               tracepos += 4;
-               duration = *((uint16_t *)(trace + tracepos));
-               tracepos += 2;
-               data_len = *((uint16_t *)(trace + tracepos));
-               tracepos += 2;
-               
-               if (data_len & 0x8000) {
-                 data_len &= 0x7fff;
-                 isResponse = true;
-               } else {
-                 isResponse = false;
-               }
-
-               parity_len = (data_len-1)/8 + 1;
-
-               if (tracepos + data_len + parity_len >= TRACE_SIZE) {
-                       break;
-               }
-               
-               uint8_t *frame = trace + tracepos;
-               tracepos += data_len;
-               uint8_t *parityBytes = trace + tracepos;
-               tracepos += parity_len;
-
-               char line[16][110];
-               for (int j = 0; j < data_len; j++) {
-                       int oddparity = 0x01;
-                       int k;
-                       
-                       for (k=0;k<8;k++) {
-                               oddparity ^= (((frame[j] & 0xFF) >> k) & 0x01);
-                       }
-
-                       uint8_t parityBits = parityBytes[j>>3];
-                       if (isResponse && (oddparity != ((parityBits >> (7-(j&0x0007))) & 0x01))) {
-                               sprintf(line[j/16]+((j%16)*4), "%02x! ", frame[j]);
-                       } else {
-                               sprintf(line[j/16]+((j%16)*4), "%02x  ", frame[j]);
-                       }
-
-               }
-
-               char *crc = ""; 
-               if (data_len > 2) {
-                       uint8_t b1, b2;
-                       if(!isResponse && data_len == 4 ) {
-                               // Rough guess that this is a command from the reader
-                               // For iClass the command byte is not part of the CRC
-                               ComputeCrc14443(CRC_ICLASS, &frame[1], data_len-3, &b1, &b2);
-                               if (b1 != frame[data_len-2] || b2 != frame[data_len-1]) {
-                                       crc = "!crc";
-                               }
-                       }
-                       else {
-                               // For other data.. CRC might not be applicable (UPDATE commands etc.)
-                               ComputeCrc14443(CRC_ICLASS, frame, data_len-2, &b1, &b2);
-                               if (b1 != frame[data_len-2] || b2 != frame[data_len-1]) {
-                                       crc = "!crc";
-                               }
-                       }
-               }
-
-               EndOfTransmissionTimestamp = timestamp + duration;
-               
-               int num_lines = (data_len - 1)/16 + 1;
-               for (int j = 0; j < num_lines; j++) {
-                       if (j == 0) {
-                               PrintAndLog(" %9d | %9d | %s | %-64s| %s",
-                                       (timestamp - first_timestamp),
-                                       (EndOfTransmissionTimestamp - first_timestamp),
-                                       (isResponse ? "Tag" : "Rdr"),
-                                       line[j], 
-                                       (j == num_lines-1)?crc:"");
-                       } else {
-                               PrintAndLog("           |           |     | %-64s| %s",
-                                       line[j], 
-                                       (j == num_lines-1)?crc:"");
-                       }
-               }                               
-
-               bool next_isResponse = *((uint16_t *)(trace + tracepos + 6)) & 0x8000;
-               
-               if (ShowWaitCycles && !isResponse && next_isResponse) {
-                       uint32_t next_timestamp = *((uint32_t *)(trace + tracepos));
-                       if (next_timestamp != 0x44444444) {
-                               PrintAndLog(" %9d | %9d | %s | fdt (Frame Delay Time): %d",
-                                       (EndOfTransmissionTimestamp - first_timestamp),
-                                       (next_timestamp - first_timestamp),
-                                       "   ",
-                                       (next_timestamp - EndOfTransmissionTimestamp));
-                       }
-               }
-                       
-       }
-       
+       PrintAndLog("Deprecated command, use 'hf list iclass' instead");

        return 0;
 }
 
        return 0;
 }
 


@@ -322,7 +178,11 @@ int CmdHFiClassReader(const char *Cmd)
             uint8_t * data  = resp.d.asBytes;
 
             PrintAndLog("isOk:%02x", isOK);
             uint8_t * data  = resp.d.asBytes;
 
             PrintAndLog("isOk:%02x", isOK);

-
+            if( isOK == 0){
+                //Aborted
+                PrintAndLog("Quitting...");
+                return 0;
+            }

             if(isOK > 0)
             {
                 PrintAndLog("CSN: %s",sprint_hex(data,8));
             if(isOK > 0)
             {
                 PrintAndLog("CSN: %s",sprint_hex(data,8));


@@ -411,87 +271,111 @@ int CmdHFiClassReader_Dump(const char *Cmd)
   uint8_t key_sel[8] = {0};
   uint8_t key_sel_p[8] = { 0 };
 
   uint8_t key_sel[8] = {0};
   uint8_t key_sel_p[8] = { 0 };
 

-  //HACK -- Below is for testing without access to a tag
-  uint8_t fake_dummy_test = false;
-  if(fake_dummy_test)
-  {
-    uint8_t xdata[16] = {0x01,0x02,0x03,0x04,0xF7,0xFF,0x12,0xE0, //CSN from http://www.proxmark.org/forum/viewtopic.php?pid=11230#p11230
-                        0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF}; // Just a random CC. Would be good to add a real testcase here
-    memcpy(resp.d.asBytes,xdata, 16);
-    resp.arg[0] = 2;    
-  }
-  
-  //End hack
-
-

   UsbCommand c = {CMD_READER_ICLASS, {0}};
   UsbCommand c = {CMD_READER_ICLASS, {0}};

-  c.arg[0] = FLAG_ICLASS_READER_ONLY_ONCE;
-  if(!fake_dummy_test)   
-    SendCommand(&c);
+  c.arg[0] = FLAG_ICLASS_READER_ONLY_ONCE| FLAG_ICLASS_READER_GET_CC;
+  SendCommand(&c);

   
 
 
   
 
 

-  if (fake_dummy_test || WaitForResponseTimeout(CMD_ACK,&resp,4500)) {
-        uint8_t isOK    = resp.arg[0] & 0xff;
-        uint8_t * data  = resp.d.asBytes;
+  if (!WaitForResponseTimeout(CMD_ACK,&resp,4500))
+  {
+         PrintAndLog("Command execute timeout");
+         return 0;
+  }

 
 

-        memcpy(CSN,data,8);
-        memcpy(CCNR,data+8,8);
+       uint8_t isOK    = resp.arg[0] & 0xff;
+       uint8_t * data  = resp.d.asBytes;

 
 

-        PrintAndLog("isOk:%02x", isOK);
+       memcpy(CSN,data,8);
+       memcpy(CCNR,data+8,8);

 
 

-        if(isOK > 0)
-        {
-            PrintAndLog("CSN: %s",sprint_hex(CSN,8));
-        }
-        if(isOK > 1)
-        {
-            if(elite)
-            {
-                //Get the key index (hash1)
-                uint8_t key_index[8] = {0};
-
-                hash1(CSN, key_index);
-                printvar("hash1", key_index,8);
-                for(i = 0; i < 8 ; i++)
-                    key_sel[i] = keytable[key_index[i]] & 0xFF;
-                PrintAndLog("Pre-fortified 'permuted' HS key that would be needed by an iclass reader to talk to above CSN:");
-                printvar("k_sel", key_sel,8);
-                //Permute from iclass format to standard format
-                permutekey_rev(key_sel,key_sel_p);
-                used_key = key_sel_p;
-            }else{
-                //Perhaps this should also be permuted to std format?
-                // Something like the code below? I have no std system
-                // to test this with /Martin
+       PrintAndLog("isOk:%02x", isOK);

 
 

-                //uint8_t key_sel_p[8] = { 0 };
-                //permutekey_rev(KEY,key_sel_p);
-                //used_key = key_sel_p;
+       if(isOK > 0)
+       {
+               PrintAndLog("CSN: %s",sprint_hex(CSN,8));
+       }
+       if(isOK <= 1){
+               PrintAndLog("Failed to obtain CC! Aborting");
+               return 0;
+       }
+       //Status 2 or higher

 
 

-                used_key = KEY;
+       if(elite)
+       {
+               //Get the key index (hash1)
+               uint8_t key_index[8] = {0};
+
+               hash1(CSN, key_index);
+               printvar("hash1", key_index,8);
+               for(i = 0; i < 8 ; i++)
+                       key_sel[i] = keytable[key_index[i]] & 0xFF;
+               PrintAndLog("Pre-fortified 'permuted' HS key that would be needed by an iclass reader to talk to above CSN:");
+               printvar("k_sel", key_sel,8);
+               //Permute from iclass format to standard format
+               permutekey_rev(key_sel,key_sel_p);
+               used_key = key_sel_p;
+       }else{
+               used_key = KEY;
+       }

 
 

-            }
+       PrintAndLog("Pre-fortified key that would be needed by the OmniKey reader to talk to above CSN:");
+       printvar("Used key",used_key,8);
+       diversifyKey(CSN,used_key, div_key);
+       PrintAndLog("Hash0, a.k.a diversified key, that is computed using Ksel and stored in the card (Block 3):");
+       printvar("Div key", div_key, 8);
+       printvar("CC_NR:",CCNR,12);
+       doMAC(CCNR,12,div_key, MAC);
+       printvar("MAC", MAC, 4);
+
+       uint8_t iclass_data[32000] = {0};
+       uint8_t iclass_datalen = 0;
+       uint8_t iclass_blocksFailed = 0;//Set to 1 if dump was incomplete
+
+       UsbCommand d = {CMD_READER_ICLASS_REPLAY, {readerType}};
+       memcpy(d.d.asBytes, MAC, 4);
+       clearCommandBuffer();
+       SendCommand(&d);
+       PrintAndLog("Waiting for device to dump data. Press button on device and key on keyboard to abort...");
+       while (true) {
+               printf(".");
+               if (ukbhit()) {
+                       getchar();
+                       printf("\naborted via keyboard!\n");
+                       break;
+               }
+               if(WaitForResponseTimeout(CMD_ACK,&resp,4500))
+               {
+                       uint64_t dataLength = resp.arg[0];
+                       iclass_blocksFailed |= resp.arg[1];
+
+                       if(dataLength > 0)
+                       {
+                               memcpy(iclass_data, resp.d.asBytes,dataLength);
+                               iclass_datalen += dataLength;
+                       }else
+                       {//Last transfer, datalength 0 means the dump is finished
+                               PrintAndLog("Dumped %d bytes of data from tag. ", iclass_datalen);
+                               if(iclass_blocksFailed)
+                               {
+                                       PrintAndLog("OBS! Some blocks failed to be dumped correctly!");
+                               }
+                               if(iclass_datalen > 0)
+                               {
+                                       char filename[100] = {0};
+                                       //create a preferred filename
+                                       snprintf(filename, 100,"iclass_tagdump-%02x%02x%02x%02x%02x%02x%02x%02x",
+                                                        CSN[0],CSN[1],CSN[2],CSN[3],
+                                                        CSN[4],CSN[5],CSN[6],CSN[7]);
+                                       saveFile(filename,"bin",iclass_data, iclass_datalen );
+
+                               }
+                               //Aaaand we're finished
+                               return 0;
+                       }
+               }
+       }

 
 

-            PrintAndLog("Pre-fortified key that would be needed by the OmniKey reader to talk to above CSN:");
-            printvar("Used key",used_key,8);
-            diversifyKey(CSN,used_key, div_key);
-            PrintAndLog("Hash0, a.k.a diversified key, that is computed using Ksel and stored in the card (Block 3):");
-            printvar("Div key", div_key, 8);
-            printvar("CC_NR:",CCNR,12);
-            doMAC(CCNR,12,div_key, MAC);
-            printvar("MAC", MAC, 4);
-
-            UsbCommand d = {CMD_READER_ICLASS_REPLAY, {readerType}};
-            memcpy(d.d.asBytes, MAC, 4);
-            if(!fake_dummy_test) SendCommand(&d);
-
-        }else{
-            PrintAndLog("Failed to obtain CC! Aborting");
-        }
-    } else {
-        PrintAndLog("Command execute timeout");
-    }

 
   return 0;
 }
 
   return 0;
 }


@@ -573,19 +457,64 @@ int CmdHFiClass_iso14443A_write(const char *Cmd)
   }
   return 0;
 }
   }
   return 0;
 }

+int CmdHFiClass_loclass(const char *Cmd)
+{
+       char opt = param_getchar(Cmd, 0);
+
+       if (strlen(Cmd)<1 || opt == 'h') {
+               PrintAndLog("Usage: hf iclass loclass [options]");
+               PrintAndLog("Options:");
+               PrintAndLog("h             Show this help");
+               PrintAndLog("t             Perform self-test");
+               PrintAndLog("f <filename>  Bruteforce iclass dumpfile");
+               PrintAndLog("                   An iclass dumpfile is assumed to consist of an arbitrary number of");
+               PrintAndLog("                   malicious CSNs, and their protocol responses");
+               PrintAndLog("                   The the binary format of the file is expected to be as follows: ");
+               PrintAndLog("                   <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
+               PrintAndLog("                   <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
+               PrintAndLog("                   <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
+               PrintAndLog("                  ... totalling N*24 bytes");
+               return 0;
+       }
+       char fileName[255] = {0};
+       if(opt == 'f')
+       {
+                       if(param_getstr(Cmd, 1, fileName) > 0)
+                       {
+                               return bruteforceFileNoKeys(fileName);
+                       }else
+                       {
+                               PrintAndLog("You must specify a filename");
+                       }
+       }
+       else if(opt == 't')
+       {
+               int errors = testCipherUtils();
+               errors += testMAC();
+               errors += doKeyTests(0);
+               errors += testElite();
+               if(errors)
+               {
+                       prnlog("OBS! There were errors!!!");
+               }
+               return errors;
+       }

 
 

+       return 0;
+}

 
 static command_t CommandTable[] = 
 {
 
 static command_t CommandTable[] = 
 {

-  {"help",     CmdHelp,                        1,      "This help"},
-  {"list",     CmdHFiClassList,        0,      "List iClass history"},
-  {"snoop",    CmdHFiClassSnoop,       0,      "Eavesdrop iClass communication"},
-  {"sim",      CmdHFiClassSim,         0,      "Simulate iClass tag"},
-  {"reader",CmdHFiClassReader, 0,      "Read an iClass tag"},
-  {"replay",CmdHFiClassReader_Replay,  0,      "Read an iClass tag via Reply Attack"},
-  {"dump",     CmdHFiClassReader_Dump, 0,              "Authenticate and Dump iClass tag"},
-  {"write",    CmdHFiClass_iso14443A_write,    0,      "Authenticate and Write iClass block"},
-  {NULL, NULL, 0, NULL}
+       {"help",        CmdHelp,                        1,      "This help"},
+       {"list",        CmdHFiClassList,        0,      "[Deprecated] List iClass history"},
+       {"snoop",       CmdHFiClassSnoop,       0,      "Eavesdrop iClass communication"},
+       {"sim", CmdHFiClassSim,         0,      "Simulate iClass tag"},
+       {"reader",CmdHFiClassReader,    0,      "Read an iClass tag"},
+       {"replay",CmdHFiClassReader_Replay,     0,      "Read an iClass tag via Reply Attack"},
+       {"dump",        CmdHFiClassReader_Dump, 0,              "Authenticate and Dump iClass tag"},
+       {"write",       CmdHFiClass_iso14443A_write,    0,      "Authenticate and Write iClass block"},
+       {"loclass",     CmdHFiClass_loclass,    1,      "Use loclass to perform bruteforce of reader attack dump"},
+       {NULL, NULL, 0, NULL}

 };
 
 int CmdHFiClass(const char *Cmd)
 };
 
 int CmdHFiClass(const char *Cmd)