]> cvs.zerfleddert.de Git - proxmark3-svn/blobdiff - client/cmdhf.c
chg: print only valid tuning data
[proxmark3-svn] / client / cmdhf.c
index 07a4aa4951b15235873e171dbf107e1a763f1665..7a2f3252f368e0648e28b68eaeb693af01a27c21 100644 (file)
@@ -8,11 +8,16 @@
 // High frequency commands
 //-----------------------------------------------------------------------------
 
+#include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
 #include "proxmark3.h"
-#include "graph.h"
+#include "util.h"
+#include "data.h"
 #include "ui.h"
+#include "iso14443crc.h"
+#include "parity.h"
+#include "cmdmain.h"
 #include "cmdparser.h"
 #include "cmdhf.h"
 #include "cmdhf14a.h"
@@ -23,6 +28,9 @@
 #include "cmdhficlass.h"
 #include "cmdhfmf.h"
 #include "cmdhfmfu.h"
+#include "cmdhftopaz.h"
+#include "protocols.h"
+#include "emv/cmdemv.h"
 
 static int CmdHelp(const char *Cmd);
 
@@ -33,175 +41,6 @@ int CmdHFTune(const char *Cmd)
   return 0;
 }
 
-//The following data is taken from http://www.proxmark.org/forum/viewtopic.php?pid=13501#p13501
-/*
-ISO14443A (usually NFC tags)
-       26 (7bits) = REQA
-       30 = Read (usage: 30+1byte block number+2bytes ISO14443A-CRC - answer: 16bytes)
-       A2 = Write (usage: A2+1byte block number+4bytes data+2bytes ISO14443A-CRC - answer: 0A [ACK] or 00 [NAK])
-       52 (7bits) = WUPA (usage: 52(7bits) - answer: 2bytes ATQA)
-       93 20 = Anticollision (usage: 9320 - answer: 4bytes UID+1byte UID-bytes-xor)
-       93 70 = Select (usage: 9370+5bytes 9320 answer - answer: 1byte SAK)
-       95 20 = Anticollision of cascade level2
-       95 70 = Select of cascade level2
-       50 00 = Halt (usage: 5000+2bytes ISO14443A-CRC - no answer from card)
-Mifare
-       60 = Authenticate with KeyA
-       61 = Authenticate with KeyB
-       40 (7bits) = Used to put Chinese Changeable UID cards in special mode (must be followed by 43 (8bits) - answer: 0A)
-       C0 = Decrement
-       C1 = Increment
-       C2 = Restore
-       B0 = Transfer
-Ultralight C
-       A0 = Compatibility Write (to accomodate MIFARE commands)
-       1A = Step1 Authenticate
-       AF = Step2 Authenticate
-
-
-ISO14443B
-       05 = REQB
-       1D = ATTRIB
-       50 = HALT
-SRIX4K (tag does not respond to 05)
-       06 00 = INITIATE
-       0E xx = SELECT ID (xx = Chip-ID)
-       0B = Get UID
-       08 yy = Read Block (yy = block number)
-       09 yy dd dd dd dd = Write Block (yy = block number; dd dd dd dd = data to be written)
-       0C = Reset to Inventory
-       0F = Completion
-       0A 11 22 33 44 55 66 = Authenticate (11 22 33 44 55 66 = data to authenticate)
-
-
-ISO15693
-       MANDATORY COMMANDS (all ISO15693 tags must support those)
-               01 = Inventory (usage: 260100+2bytes ISO15693-CRC - answer: 12bytes)
-               02 = Stay Quiet
-       OPTIONAL COMMANDS (not all tags support them)
-               20 = Read Block (usage: 0220+1byte block number+2bytes ISO15693-CRC - answer: 4bytes)
-               21 = Write Block (usage: 0221+1byte block number+4bytes data+2bytes ISO15693-CRC - answer: 4bytes)
-               22 = Lock Block
-               23 = Read Multiple Blocks (usage: 0223+1byte 1st block to read+1byte last block to read+2bytes ISO15693-CRC)
-               25 = Select
-               26 = Reset to Ready
-               27 = Write AFI
-               28 = Lock AFI
-               29 = Write DSFID
-               2A = Lock DSFID
-               2B = Get_System_Info (usage: 022B+2bytes ISO15693-CRC - answer: 14 or more bytes)
-               2C = Read Multiple Block Security Status (usage: 022C+1byte 1st block security to read+1byte last block security to read+2bytes ISO15693-CRC)
-
-EM Microelectronic CUSTOM COMMANDS
-       A5 = Active EAS (followed by 1byte IC Manufacturer code+1byte EAS type)
-       A7 = Write EAS ID (followed by 1byte IC Manufacturer code+2bytes EAS value)
-       B8 = Get Protection Status for a specific block (followed by 1byte IC Manufacturer code+1byte block number+1byte of how many blocks after the previous is needed the info)
-       E4 = Login (followed by 1byte IC Manufacturer code+4bytes password)
-NXP/Philips CUSTOM COMMANDS
-       A0 = Inventory Read
-       A1 = Fast Inventory Read
-       A2 = Set EAS
-       A3 = Reset EAS
-       A4 = Lock EAS
-       A5 = EAS Alarm
-       A6 = Password Protect EAS
-       A7 = Write EAS ID
-       A8 = Read EPC
-       B0 = Inventory Page Read
-       B1 = Fast Inventory Page Read
-       B2 = Get Random Number
-       B3 = Set Password
-       B4 = Write Password
-       B5 = Lock Password
-       B6 = Bit Password Protection
-       B7 = Lock Page Protection Condition
-       B8 = Get Multiple Block Protection Status
-       B9 = Destroy SLI
-       BA = Enable Privacy
-       BB = 64bit Password Protection
-       40 = Long Range CMD (Standard ISO/TR7003:1990)
-               */
-
-#define ICLASS_CMD_ACTALL           0x0A
-#define ICLASS_CMD_READ_OR_IDENTIFY 0x0C
-#define ICLASS_CMD_SELECT           0x81
-#define ICLASS_CMD_PAGESEL          0x84
-#define ICLASS_CMD_READCHECK_KD     0x88
-#define ICLASS_CMD_READCHECK_KC     0x18
-#define ICLASS_CMD_CHECK            0x05
-#define ICLASS_CMD_DETECT           0x0F
-#define ICLASS_CMD_HALT             0x00
-#define ICLASS_CMD_UPDATE                      0x87
-#define ICLASS_CMD_ACT              0x8E
-#define ICLASS_CMD_READ4            0x06
-
-
-#define ISO14443A_CMD_REQA       0x26
-#define ISO14443A_CMD_READBLOCK  0x30
-#define ISO14443A_CMD_WUPA       0x52
-#define ISO14443A_CMD_ANTICOLL_OR_SELECT     0x93
-#define ISO14443A_CMD_ANTICOLL_OR_SELECT_2   0x95
-#define ISO14443A_CMD_WRITEBLOCK 0xA0 // or 0xA2 ?
-#define ISO14443A_CMD_HALT       0x50
-#define ISO14443A_CMD_RATS       0xE0
-
-#define MIFARE_AUTH_KEYA           0x60
-#define MIFARE_AUTH_KEYB           0x61
-#define MIFARE_MAGICMODE           0x40
-#define MIFARE_CMD_INC          0xC0
-#define MIFARE_CMD_DEC          0xC1
-#define MIFARE_CMD_RESTORE      0xC2
-#define MIFARE_CMD_TRANSFER     0xB0
-
-#define MIFARE_ULC_WRITE        0xA0
-#define MIFARE_ULC_AUTH_1       0x1A
-#define MIFARE_ULC_AUTH_2        0xAF
-
-/**
-06 00 = INITIATE
-0E xx = SELECT ID (xx = Chip-ID)
-0B = Get UID
-08 yy = Read Block (yy = block number)
-09 yy dd dd dd dd = Write Block (yy = block number; dd dd dd dd = data to be written)
-0C = Reset to Inventory
-0F = Completion
-0A 11 22 33 44 55 66 = Authenticate (11 22 33 44 55 66 = data to authenticate)
-**/
-
-#define ISO14443B_REQB         0x05
-#define ISO14443B_ATTRIB       0x1D
-#define ISO14443B_HALT         0x50
-#define ISO14443B_INITIATE     0x06
-#define ISO14443B_SELECT       0x0E
-#define ISO14443B_GET_UID      0x0B
-#define ISO14443B_READ_BLK     0x08
-#define ISO14443B_WRITE_BLK    0x09
-#define ISO14443B_RESET        0x0C
-#define ISO14443B_COMPLETION   0x0F
-#define ISO14443B_AUTHENTICATE 0x0A
-
-//First byte is 26
-#define ISO15693_INVENTORY     0x01
-#define ISO15693_STAYQUIET     0x02
-//First byte is 02
-#define ISO15693_READBLOCK            0x20
-#define ISO15693_WRITEBLOCK           0x21
-#define ISO15693_LOCKBLOCK            0x22
-#define ISO15693_READ_MULTI_BLOCK     0x23
-#define ISO15693_SELECT               0x25
-#define ISO15693_RESET_TO_READY       0x26
-#define ISO15693_WRITE_AFI            0x27
-#define ISO15693_LOCK_AFI             0x28
-#define ISO15693_WRITE_DSFID          0x29
-#define ISO15693_LOCK_DSFID           0x2A
-#define ISO15693_GET_SYSTEM_INFO      0x2B
-#define ISO15693_READ_MULTI_SECSTATUS 0x2C
-
-
-#define ISO_14443A 0
-#define ICLASS     1
-#define ISO_14443B 2
-
 
 void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
 {
@@ -230,19 +69,67 @@ void annotateIso14443a(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
                        snprintf(exp,size,"ANTICOLL-2"); break;
                }
        }
-       case ISO14443A_CMD_REQA:       snprintf(exp,size,"REQA"); break;
-       case ISO14443A_CMD_READBLOCK:  snprintf(exp,size,"READBLOCK(%d)",cmd[1]); break;
-       case ISO14443A_CMD_WRITEBLOCK: snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]); break;
-       case ISO14443A_CMD_HALT:       snprintf(exp,size,"HALT"); break;
-       case ISO14443A_CMD_RATS:       snprintf(exp,size,"RATS"); break;
-       case MIFARE_CMD_INC:          snprintf(exp,size,"INC(%d)",cmd[1]); break;
-       case MIFARE_CMD_DEC:          snprintf(exp,size,"DEC(%d)",cmd[1]); break;
-       case MIFARE_CMD_RESTORE:      snprintf(exp,size,"RESTORE(%d)",cmd[1]); break;
-       case MIFARE_CMD_TRANSFER:     snprintf(exp,size,"TRANSFER(%d)",cmd[1]); break;
-       case MIFARE_AUTH_KEYA:        snprintf(exp,size,"AUTH-A(%d)",cmd[1]); break;
-       case MIFARE_AUTH_KEYB:        snprintf(exp,size,"AUTH-B(%d)",cmd[1]); break;
-       case MIFARE_MAGICMODE:        snprintf(exp,size,"MAGIC"); break;
-       default:                      snprintf(exp,size,"?"); break;
+       case ISO14443A_CMD_REQA:                snprintf(exp,size,"REQA"); break;
+       case ISO14443A_CMD_READBLOCK:   snprintf(exp,size,"READBLOCK(%d)",cmd[1]); break;
+       case ISO14443A_CMD_WRITEBLOCK:  snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]); break;
+       case ISO14443A_CMD_HALT:                snprintf(exp,size,"HALT"); break;
+       case ISO14443A_CMD_RATS:                snprintf(exp,size,"RATS"); break;
+       case MIFARE_CMD_INC:                    snprintf(exp,size,"INC(%d)",cmd[1]); break;
+       case MIFARE_CMD_DEC:                    snprintf(exp,size,"DEC(%d)",cmd[1]); break;
+       case MIFARE_CMD_RESTORE:                snprintf(exp,size,"RESTORE(%d)",cmd[1]); break;
+       case MIFARE_CMD_TRANSFER:               snprintf(exp,size,"TRANSFER(%d)",cmd[1]); break;
+       case MIFARE_AUTH_KEYA:{
+               if ( cmdsize > 3)
+                       snprintf(exp,size,"AUTH-A(%d)",cmd[1]); 
+               else
+                       //      case MIFARE_ULEV1_VERSION :  both 0x60.
+                       snprintf(exp,size,"EV1 VERSION");
+               break;
+       }
+       case MIFARE_AUTH_KEYB:                  snprintf(exp,size,"AUTH-B(%d)",cmd[1]); break;
+       case MIFARE_MAGICWUPC1:                 snprintf(exp,size,"MAGIC WUPC1"); break;
+       case MIFARE_MAGICWUPC2:                 snprintf(exp,size,"MAGIC WUPC2"); break;
+       case MIFARE_MAGICWIPEC:                 snprintf(exp,size,"MAGIC WIPEC"); break;
+       case MIFARE_ULC_AUTH_1:         snprintf(exp,size,"AUTH "); break;
+       case MIFARE_ULC_AUTH_2:         snprintf(exp,size,"AUTH_ANSW"); break;
+       case MIFARE_ULEV1_AUTH:
+               if ( cmdsize == 7 )
+                       snprintf(exp,size,"PWD-AUTH KEY: 0x%02x%02x%02x%02x", cmd[1], cmd[2], cmd[3], cmd[4] );
+               else
+                       snprintf(exp,size,"PWD-AUTH");
+               break;
+       case MIFARE_ULEV1_FASTREAD:{
+               if ( cmdsize >=3 && cmd[2] <= 0xE6)
+                       snprintf(exp,size,"READ RANGE (%d-%d)",cmd[1],cmd[2]); 
+               else
+                       snprintf(exp,size,"?");
+               break;
+       }
+       case MIFARE_ULC_WRITE:{
+               if ( cmd[1] < 0x21 )
+                       snprintf(exp,size,"WRITEBLOCK(%d)",cmd[1]); 
+               else
+                       snprintf(exp,size,"?");
+               break;
+       }
+       case MIFARE_ULEV1_READ_CNT:{
+               if ( cmd[1] < 5 )
+                       snprintf(exp,size,"READ CNT(%d)",cmd[1]);
+               else
+                       snprintf(exp,size,"?");
+               break;
+       }
+       case MIFARE_ULEV1_INCR_CNT:{
+               if ( cmd[1] < 5 )
+                       snprintf(exp,size,"INCR(%d)",cmd[1]);
+               else
+                       snprintf(exp,size,"?");
+               break;
+       }
+       case MIFARE_ULEV1_READSIG:              snprintf(exp,size,"READ_SIG"); break;
+       case MIFARE_ULEV1_CHECKTEAR:    snprintf(exp,size,"CHK_TEARING(%d)",cmd[1]); break;
+       case MIFARE_ULEV1_VCSL:         snprintf(exp,size,"VCSL"); break;
+       default:                                                snprintf(exp,size,"?"); break;
        }
        return;
 }
@@ -307,6 +194,26 @@ void annotateIso15693(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
        }
 }
 
+
+void annotateTopaz(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
+{
+       switch(cmd[0]) {
+               case TOPAZ_REQA                                         :snprintf(exp, size, "REQA");break;
+               case TOPAZ_WUPA                                         :snprintf(exp, size, "WUPA");break;
+               case TOPAZ_RID                                          :snprintf(exp, size, "RID");break;
+               case TOPAZ_RALL                                         :snprintf(exp, size, "RALL");break;
+               case TOPAZ_READ                                         :snprintf(exp, size, "READ");break;
+               case TOPAZ_WRITE_E                                      :snprintf(exp, size, "WRITE-E");break;
+               case TOPAZ_WRITE_NE                                     :snprintf(exp, size, "WRITE-NE");break;
+               case TOPAZ_RSEG                                         :snprintf(exp, size, "RSEG");break;
+               case TOPAZ_READ8                                        :snprintf(exp, size, "READ8");break;
+               case TOPAZ_WRITE_E8                                     :snprintf(exp, size, "WRITE-E8");break;
+               case TOPAZ_WRITE_NE8                            :snprintf(exp, size, "WRITE-NE8");break;
+               default:                            snprintf(exp,size,"?"); break;
+       }
+}
+
+
 /**
 06 00 = INITIATE
 0E xx = SELECT ID (xx = Chip-ID)
@@ -338,7 +245,34 @@ void annotateIso14443b(char *exp, size_t size, uint8_t* cmd, uint8_t cmdsize)
 }
 
 /**
- * @brief iso14443B_CRC_Ok Checks CRC in command or response
+ * @brief iso14443A_CRC_check Checks CRC in command or response
+ * @param isResponse
+ * @param data
+ * @param len
+ * @return  0 : CRC-command, CRC not ok
+ *          1 : CRC-command, CRC ok
+ *          2 : Not crc-command
+ */
+
+uint8_t iso14443A_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
+{
+       uint8_t b1,b2;
+
+       if(len <= 2) return 2;
+
+       if(isResponse & (len < 6)) return 2;
+       
+       ComputeCrc14443(CRC_14443_A, data, len-2, &b1, &b2);
+       if (b1 != data[len-2] || b2 != data[len-1]) {
+               return 0;
+       } else {
+               return 1;
+       }
+}
+
+
+/**
+ * @brief iso14443B_CRC_check Checks CRC in command or response
  * @param isResponse
  * @param data
  * @param len
@@ -355,9 +289,10 @@ uint8_t iso14443B_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
 
        ComputeCrc14443(CRC_14443_B, data, len-2, &b1, &b2);
        if(b1 != data[len-2] || b2 != data[len-1]) {
-         return 0;
+               return 0;
+       } else {
+               return 1;
        }
-       return 1;
 }
 
 /**
@@ -421,11 +356,66 @@ uint8_t iclass_CRC_check(bool isResponse, uint8_t* data, uint8_t len)
        }
 }
 
-uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, uint8_t protocol, bool showWaitCycles)
+
+bool is_last_record(uint16_t tracepos, uint8_t *trace, uint16_t traceLen)
 {
-       bool isResponse;
-       uint16_t duration, data_len, parity_len;
+       return(tracepos + sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint16_t) >= traceLen);
+}
+
+
+bool next_record_is_response(uint16_t tracepos, uint8_t *trace)
+{
+       uint16_t next_records_datalen = *((uint16_t *)(trace + tracepos + sizeof(uint32_t) + sizeof(uint16_t)));
+       
+       return(next_records_datalen & 0x8000);
+}
+
+
+bool merge_topaz_reader_frames(uint32_t timestamp, uint32_t *duration, uint16_t *tracepos, uint16_t traceLen, uint8_t *trace, uint8_t *frame, uint8_t *topaz_reader_command, uint16_t *data_len)
+{
+
+#define MAX_TOPAZ_READER_CMD_LEN       16
+
+       uint32_t last_timestamp = timestamp + *duration;
+
+       if ((*data_len != 1) || (frame[0] == TOPAZ_WUPA) || (frame[0] == TOPAZ_REQA)) return false;
+
+       memcpy(topaz_reader_command, frame, *data_len);
+
+       while (!is_last_record(*tracepos, trace, traceLen) && !next_record_is_response(*tracepos, trace)) {
+               uint32_t next_timestamp = *((uint32_t *)(trace + *tracepos));
+               *tracepos += sizeof(uint32_t);
+               uint16_t next_duration = *((uint16_t *)(trace + *tracepos));
+               *tracepos += sizeof(uint16_t);
+               uint16_t next_data_len = *((uint16_t *)(trace + *tracepos)) & 0x7FFF;
+               *tracepos += sizeof(uint16_t);
+               uint8_t *next_frame = (trace + *tracepos);
+               *tracepos += next_data_len;
+               if ((next_data_len == 1) && (*data_len + next_data_len <= MAX_TOPAZ_READER_CMD_LEN)) {
+                       memcpy(topaz_reader_command + *data_len, next_frame, next_data_len);
+                       *data_len += next_data_len;
+                       last_timestamp = next_timestamp + next_duration;
+               } else {
+                       // rewind and exit
+                       *tracepos = *tracepos - next_data_len - sizeof(uint16_t) - sizeof(uint16_t) - sizeof(uint32_t);
+                       break;
+               }
+               uint16_t next_parity_len = (next_data_len-1)/8 + 1;
+               *tracepos += next_parity_len;
+       }
+
+       *duration = last_timestamp - timestamp;
+       
+       return true;
+}
+
 
+uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, uint8_t protocol, bool showWaitCycles, bool markCRCBytes)
+{
+       bool isResponse;
+       uint16_t data_len, parity_len;
+       uint32_t duration;
+       uint8_t topaz_reader_command[9];
        uint32_t timestamp, first_timestamp, EndOfTransmissionTimestamp;
        char explanation[30] = {0};
 
@@ -456,6 +446,36 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
        uint8_t *parityBytes = trace + tracepos;
        tracepos += parity_len;
 
+       if (protocol == TOPAZ && !isResponse) {
+               // topaz reader commands come in 1 or 9 separate frames with 7 or 8 Bits each.
+               // merge them:
+               if (merge_topaz_reader_frames(timestamp, &duration, &tracepos, traceLen, trace, frame, topaz_reader_command, &data_len)) {
+                       frame = topaz_reader_command;
+               }
+       }
+       
+       //Check the CRC status
+       uint8_t crcStatus = 2;
+
+       if (data_len > 2) {
+               switch (protocol) {
+                       case ICLASS:
+                               crcStatus = iclass_CRC_check(isResponse, frame, data_len);
+                               break;
+                       case ISO_14443B:
+                       case TOPAZ:
+                               crcStatus = iso14443B_CRC_check(isResponse, frame, data_len); 
+                               break;
+                       case ISO_14443A:
+                               crcStatus = iso14443A_CRC_check(isResponse, frame, data_len);
+                               break;
+                       default: 
+                               break;
+               }
+       }
+       //0 CRC-command, CRC not ok
+       //1 CRC-command, CRC ok
+       //2 Not crc-command
 
        //--- Draw the data column
        //char line[16][110];
@@ -463,21 +483,25 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
 
        for (int j = 0; j < data_len && j/16 < 16; 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))) {
+               if (protocol != ISO_14443B && (isResponse || protocol == ISO_14443A) && (oddparity8(frame[j]) != ((parityBits >> (7-(j&0x0007))) & 0x01))) {
                        snprintf(line[j/16]+(( j % 16) * 4),110, "%02x! ", frame[j]);
-
                } else {
-                       snprintf(line[j/16]+(( j % 16) * 4),110, "%02x! ", frame[j]);
+                       snprintf(line[j/16]+(( j % 16) * 4), 110, " %02x ", frame[j]);
+               }
+
+       }
+
+       if (markCRCBytes) {
+               if(crcStatus == 0 || crcStatus == 1)
+               {//CRC-command
+                       char *pos1 = line[(data_len-2)/16]+(((data_len-2) % 16) * 4);
+                       (*pos1) = '[';
+                       char *pos2 = line[(data_len)/16]+(((data_len) % 16) * 4);
+                       sprintf(pos2, "%c", ']');
                }
        }
+
        if(data_len == 0)
        {
                if(data_len == 0){
@@ -485,51 +509,26 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
                }
        }
        //--- Draw the CRC column
-       uint8_t crcStatus = 2;
-
-       if (data_len > 2) {
-               uint8_t b1, b2;
-               if(protocol == ICLASS)
-               {
-                       crcStatus = iclass_CRC_check(isResponse, frame, data_len);
-
-               }else if (protocol == ISO_14443B)
-               {
-                       crcStatus = iso14443B_CRC_check(isResponse, frame, data_len);
-               }
-               else if (protocol == ISO_14443A){//Iso 14443a
-
-                       ComputeCrc14443(CRC_14443_A, frame, data_len-2, &b1, &b2);
 
-                       if (b1 != frame[data_len-2] || b2 != frame[data_len-1]) {
-                               if(!(isResponse & (data_len < 6)))
-                               {
-                                               crcStatus = 0;
-                               }
-                       }
-               }
-       }
-       //0 CRC-command, CRC not ok
-       //1 CRC-command, CRC ok
-       //2 Not crc-command
        char *crc = (crcStatus == 0 ? "!crc" : (crcStatus == 1 ? " ok " : "    "));
 
        EndOfTransmissionTimestamp = timestamp + duration;
 
        if(!isResponse)
        {
-               if(protocol == ICLASS)
-                       annotateIclass(explanation,sizeof(explanation),frame,data_len);
-               else if (protocol == ISO_14443A)
-                       annotateIso14443a(explanation,sizeof(explanation),frame,data_len);
-               else if(protocol == ISO_14443B)
-                       annotateIso14443b(explanation,sizeof(explanation),frame,data_len);
+               switch(protocol) {
+                       case ICLASS:            annotateIclass(explanation,sizeof(explanation),frame,data_len); break;
+                       case ISO_14443A:        annotateIso14443a(explanation,sizeof(explanation),frame,data_len); break;
+                       case ISO_14443B:        annotateIso14443b(explanation,sizeof(explanation),frame,data_len); break;
+                       case TOPAZ:                     annotateTopaz(explanation,sizeof(explanation),frame,data_len); break;
+                       default:                        break;
+               }
        }
 
        int num_lines = MIN((data_len - 1)/16 + 1, 16);
        for (int j = 0; j < num_lines ; j++) {
                if (j == 0) {
-                       PrintAndLog(" %9d | %9d | %s | %-64s| %s| %s",
+                       PrintAndLog(" %10d | %10d | %s |%-64s | %s| %s",
                                (timestamp - first_timestamp),
                                (EndOfTransmissionTimestamp - first_timestamp),
                                (isResponse ? "Tag" : "Rdr"),
@@ -537,26 +536,22 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
                                (j == num_lines-1) ? crc : "    ",
                                (j == num_lines-1) ? explanation : "");
                } else {
-                       PrintAndLog("           |           |     | %-64s| %s| %s",
+                       PrintAndLog("            |            |     |%-64s | %s| %s",
                                line[j],
-                               (j == num_lines-1)?crc:"    ",
+                               (j == num_lines-1) ? crc : "    ",
                                (j == num_lines-1) ? explanation : "");
                }
        }
 
-       if (tracepos + sizeof(uint32_t) + sizeof(uint16_t) + sizeof(uint16_t) > traceLen) return traceLen;
+       if (is_last_record(tracepos, trace, traceLen)) return traceLen;
        
-       bool next_isResponse = *((uint16_t *)(trace + tracepos + 6)) & 0x8000;
-
-       if (showWaitCycles && !isResponse && next_isResponse) {
+       if (showWaitCycles && !isResponse && next_record_is_response(tracepos, trace)) {
                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(" %10d | %10d | %s | fdt (Frame Delay Time): %d",
+                       (EndOfTransmissionTimestamp - first_timestamp),
+                       (next_timestamp - first_timestamp),
+                       "   ",
+                       (next_timestamp - EndOfTransmissionTimestamp));
        }
 
        return tracepos;
@@ -566,49 +561,52 @@ uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, ui
 int CmdHFList(const char *Cmd)
 {
        bool showWaitCycles = false;
+       bool markCRCBytes = false;
        char type[40] = {0};
-       int tlen = param_getstr(Cmd,0,type);
-       char param = param_getchar(Cmd, 1);
+       int tlen = param_getstr(Cmd,0,type, sizeof(type));
+       char param1 = param_getchar(Cmd, 1);
+       char param2 = param_getchar(Cmd, 2);
        bool errors = false;
        uint8_t protocol = 0;
        //Validate params
-       if(tlen == 0)
-       {
+
+       if(tlen == 0) {
                errors = true;
        }
-       if(param == 'h' || (param !=0 && param != 'f'))
-       {
+
+       if(param1 == 'h'
+                       || (param1 != 0 && param1 != 'f' && param1 != 'c')
+                       || (param2 != 0 && param2 != 'f' && param2 != 'c')) {
                errors = true;
        }
-       if(!errors)
-       {
-               if(strcmp(type, "iclass") == 0)
-               {
+
+       if(!errors) {
+               if(strcmp(type, "iclass") == 0) {
                        protocol = ICLASS;
-               }else if(strcmp(type, "14a") == 0)
-               {
+               } else if(strcmp(type, "14a") == 0) {
                        protocol = ISO_14443A;
-               }
-               else if(strcmp(type, "14b") == 0)
-               {
+               } else if(strcmp(type, "14b") == 0)     {
                        protocol = ISO_14443B;
-               }else if(strcmp(type,"raw")== 0)
-               {
+               } else if(strcmp(type,"topaz")== 0) {
+                       protocol = TOPAZ;
+               } else if(strcmp(type,"raw")== 0) {
                        protocol = -1;//No crc, no annotations
-               }else{
+               } else {
                        errors = true;
                }
        }
 
        if (errors) {
                PrintAndLog("List protocol data in trace buffer.");
-               PrintAndLog("Usage:  hf list <protocol> [f]");
+               PrintAndLog("Usage:  hf list <protocol> [f][c]");
                PrintAndLog("    f      - show frame delay times as well");
+               PrintAndLog("    c      - mark CRC bytes");
                PrintAndLog("Supported <protocol> values:");
                PrintAndLog("    raw    - just show raw data without annotations");
                PrintAndLog("    14a    - interpret data as iso14443a communications");
                PrintAndLog("    14b    - interpret data as iso14443b communications");
                PrintAndLog("    iclass - interpret data as iclass communications");
+               PrintAndLog("    topaz  - interpret data as topaz communications");
                PrintAndLog("");
                PrintAndLog("example: hf list 14a f");
                PrintAndLog("example: hf list iclass");
@@ -616,10 +614,13 @@ int CmdHFList(const char *Cmd)
        }
 
 
-       if (param == 'f') {
+       if (param1 == 'f' || param2 == 'f') {
                showWaitCycles = true;
        }
 
+       if (param1 == 'c' || param2 == 'c') {
+               markCRCBytes = true;
+       }
 
        uint8_t *trace;
        uint16_t tracepos = 0;
@@ -648,33 +649,72 @@ int CmdHFList(const char *Cmd)
        PrintAndLog("iso14443a - All times are in carrier periods (1/13.56Mhz)");
        PrintAndLog("iClass    - Timings are not as accurate");
        PrintAndLog("");
-       PrintAndLog("     Start |       End | Src | Data (! denotes parity error)                                   | CRC | Annotation         |");
-       PrintAndLog("-----------|-----------|-----|-----------------------------------------------------------------|-----|--------------------|");
+       PrintAndLog("      Start |        End | Src | Data (! denotes parity error)                                   | CRC | Annotation         |");
+       PrintAndLog("------------|------------|-----|-----------------------------------------------------------------|-----|--------------------|");
 
        while(tracepos < traceLen)
        {
-               tracepos = printTraceLine(tracepos, traceLen, trace, protocol, showWaitCycles);
+               tracepos = printTraceLine(tracepos, traceLen, trace, protocol, showWaitCycles, markCRCBytes);
        }
 
        free(trace);
        return 0;
 }
 
+int CmdHFSearch(const char *Cmd){
+       int ans = 0;
+       PrintAndLog("");
+       ans = CmdHF14AInfo("s");
+       if (ans > 0) {
+               PrintAndLog("\nValid ISO14443A Tag Found - Quiting Search\n");
+               return ans;
+       }
+       ans = HFiClassReader("", false, false);
+       if (ans) {
+               PrintAndLog("\nValid iClass Tag (or PicoPass Tag) Found - Quiting Search\n");
+               return ans;
+       }
+       ans = HF15Reader("", false);
+       if (ans) {
+               PrintAndLog("\nValid ISO15693 Tag Found - Quiting Search\n");
+               return ans;
+       }
+       //14b is longest test currently (and rarest chip type) ... put last
+       ans = HF14BInfo(false);
+       if (ans) {
+               PrintAndLog("\nValid ISO14443B Tag Found - Quiting Search\n");
+               return ans;
+       }
+       PrintAndLog("\nno known/supported 13.56 MHz tags found\n");
+       return 0;
+}
+
+int CmdHFSnoop(const char *Cmd)
+{
+       char * pEnd;
+       UsbCommand c = {CMD_HF_SNIFFER, {strtol(Cmd, &pEnd,0),strtol(pEnd, &pEnd,0),0}};
+       SendCommand(&c);
+       return 0;
+}
 
 static command_t CommandTable[] = 
 {
-  {"help",        CmdHelp,          1, "This help"},
-  {"14a",         CmdHF14A,         1, "{ ISO14443A RFIDs... }"},
-  {"14b",         CmdHF14B,         1, "{ ISO14443B RFIDs... }"},
-  {"15",          CmdHF15,          1, "{ ISO15693 RFIDs... }"},
-  {"epa",         CmdHFEPA,         1, "{ German Identification Card... }"},
-  {"legic",       CmdHFLegic,       0, "{ LEGIC RFIDs... }"},
-  {"iclass",      CmdHFiClass,      1, "{ ICLASS RFIDs... }"},
-  {"mf",               CmdHFMF,                1, "{ MIFARE RFIDs... }"},
-  {"mfu",                      CmdHFMFUltra,           1, "{ MIFARE Ultralight RFIDs... }"},
-  {"tune",        CmdHFTune,        0, "Continuously measure HF antenna tuning"},
-  {"list",       CmdHFList,         1, "List protocol data in trace buffer"},
-       {NULL, NULL, 0, NULL}
+       {"help",        CmdHelp,                1, "This help"},
+       {"14a",         CmdHF14A,               1, "{ ISO14443A RFIDs... }"},
+       {"14b",         CmdHF14B,               1, "{ ISO14443B RFIDs... }"},
+       {"15",          CmdHF15,                1, "{ ISO15693 RFIDs... }"},
+       {"epa",         CmdHFEPA,               1, "{ German Identification Card... }"},
+       {"emv",         CmdHFEMV,               1, "{ EMV cards... }"},
+       {"legic",       CmdHFLegic,             0, "{ LEGIC RFIDs... }"},
+       {"iclass",      CmdHFiClass,    1, "{ ICLASS RFIDs... }"},
+       {"mf",          CmdHFMF,                1, "{ MIFARE RFIDs... }"},
+       {"mfu",         CmdHFMFUltra,   1, "{ MIFARE Ultralight RFIDs... }"},
+       {"topaz",       CmdHFTopaz,             1, "{ TOPAZ (NFC Type 1) RFIDs... }"},
+       {"tune",        CmdHFTune,              0, "Continuously measure HF antenna tuning"},
+       {"list",        CmdHFList,              1, "List protocol data in trace buffer"},
+       {"search",      CmdHFSearch,    1, "Search for known HF tags [preliminary]"},
+       {"snoop",   CmdHFSnoop,     0, "<samples to skip (10000)> <triggers to skip (1)> Generic HF Snoop"},
+       {NULL,          NULL,                   0, NULL}
 };
 
 int CmdHF(const char *Cmd)
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